diff --git a/.github/workflows/makefile.yml b/.github/workflows/makefile.yml
index 9e058e43..303ff363 100644
--- a/.github/workflows/makefile.yml
+++ b/.github/workflows/makefile.yml
@@ -81,6 +81,41 @@ jobs:
       if: steps.cache-cross.outputs.cache-hit != 'true'
       run: make --quiet -C tools do_gccarm64
 
+  buildtoolchaincompiler:
+    name: Build Toolchain Cross-Compiler (GCC)
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with:
+        submodules: recursive
+
+    - name: Cache cross Folder
+      id: cache-cross
+      uses: actions/cache@v3.0.10
+      with:
+        path: tools/cross
+        key: ${{ runner.os }}-cross-${{ hashFiles('tools/Makefile') }}
+
+    - name: Update System
+      if: steps.cache-cross.outputs.cache-hit != 'true'
+      run: sudo apt-get update
+
+    - name: Install GCC Dependencies
+      if: steps.cache-cross.outputs.cache-hit != 'true'
+      run: sudo apt install build-essential bison flex libgmp3-dev libmpc-dev libmpfr-dev texinfo libzstd-dev libisl-dev autoconf m4 automake gettext gperf dejagnu guile-3.0 guile-3.0-dev expect tcl autogen tex-common sphinx-common git ssh diffutils patch -y
+
+    - name: Prepare Toolchain
+      if: steps.cache-cross.outputs.cache-hit != 'true'
+      run: make --quiet -C tools do_prep_toolchain
+
+    - name: Compile Toolchain Binutils
+      if: steps.cache-cross.outputs.cache-hit != 'true'
+      run: make --quiet -C tools do_toolchain_binutils64
+
+    - name: Compile Toolchain GCC
+      if: steps.cache-cross.outputs.cache-hit != 'true'
+      run: make --quiet -C tools do_toolchain_gcc64
+
   compilegnuefi:
     name: Build GNU-EFI
     runs-on: ubuntu-latest
@@ -111,7 +146,7 @@ jobs:
   analyze:
     name: Analyze with CodeQL
     runs-on: ubuntu-latest
-    needs: [buildcompiler, compilegnuefi]
+    needs: [buildcompiler, compilegnuefi, buildtoolchaincompiler]
     permissions:
       actions: read
       contents: read
@@ -171,7 +206,7 @@ jobs:
   compile64:
     name: Build amd64
     runs-on: ubuntu-latest
-    needs: [buildcompiler, compilegnuefi]
+    needs: [buildcompiler, compilegnuefi, buildtoolchaincompiler]
     steps:
     - uses: actions/checkout@v3
       with:
@@ -180,7 +215,7 @@ jobs:
     - name: Update & Install Required Packages
       run: |
         sudo apt-get update
-        sudo apt-get install xorriso mtools genisoimage ovmf nasm doxygen make gcc-mingw-w64-x86-64 gcc-mingw-w64-i686 mingw-w64 -y
+        sudo apt-get install rustc xorriso mtools genisoimage ovmf nasm doxygen make gcc-mingw-w64-x86-64 gcc-mingw-w64-i686 mingw-w64 -y
         make --quiet -C tools do_limine
         make --quiet -C Drivers prepare
         make --quiet -C Userspace prepare
@@ -216,7 +251,7 @@ jobs:
   compile32:
     name: Build i686
     runs-on: ubuntu-latest
-    needs: [buildcompiler, compilegnuefi]
+    needs: [buildcompiler, compilegnuefi, buildtoolchaincompiler]
     steps:
     - uses: actions/checkout@v3
       with:
@@ -225,7 +260,7 @@ jobs:
     - name: Update & Install Required Packages
       run: |
         sudo apt-get update
-        sudo apt-get install xorriso mtools genisoimage ovmf nasm doxygen make gcc-mingw-w64-x86-64 gcc-mingw-w64-i686 mingw-w64 -y
+        sudo apt-get install rustc xorriso mtools genisoimage ovmf nasm doxygen make gcc-mingw-w64-x86-64 gcc-mingw-w64-i686 mingw-w64 -y
         make --quiet -C tools do_limine
         make --quiet -C Drivers prepare
         make --quiet -C Userspace prepare
@@ -267,7 +302,7 @@ jobs:
   compilearm64:
     name: Build aarch64
     runs-on: ubuntu-latest
-    needs: [buildcompiler, compilegnuefi]
+    needs: [buildcompiler, compilegnuefi, buildtoolchaincompiler]
     steps:
     - uses: actions/checkout@v3
       with:
@@ -276,7 +311,7 @@ jobs:
     - name: Update & Install Required Packages
       run: |
         sudo apt-get update
-        sudo apt-get install xorriso mtools genisoimage ovmf nasm doxygen make gcc-mingw-w64-x86-64 gcc-mingw-w64-i686 mingw-w64 -y
+        sudo apt-get install rustc xorriso mtools genisoimage ovmf nasm doxygen make gcc-mingw-w64-x86-64 gcc-mingw-w64-i686 mingw-w64 -y
         make --quiet -C tools do_limine
         make --quiet -C Drivers prepare
         make --quiet -C Userspace prepare
diff --git a/.gitignore b/.gitignore
index 0ec7d48d..f2a8fda7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,6 +12,8 @@ tools/*
 !tools/*.c
 !tools/*.cpp
 !tools/*.cfg
+!tools/toolchain-binutils-gdb.patch
+!tools/toolchain-gcc.patch
 doxygen-doc
 initrd.tar.gz
 .dccache
diff --git a/Fennix Kernel.code-workspace b/Fennix Kernel.code-workspace
index e5329a74..4bf7bfaa 100644
--- a/Fennix Kernel.code-workspace	
+++ b/Fennix Kernel.code-workspace	
@@ -25,10 +25,13 @@
 			"kernel.h": "c"
 		},
 		"cSpell.words": [
+			"AABBCC",
 			"AAFFAA",
+			"ACPINVS",
 			"AHCI",
 			"apic",
 			"APICID",
+			"archaux",
 			"auxv",
 			"binfo",
 			"Bootloader",
@@ -36,14 +39,21 @@
 			"COMNULL",
 			"cpudata",
 			"CPUID",
+			"crashdata",
+			"cutlim",
 			"Didx",
 			"DLAB",
 			"Drivermemcpy",
 			"Drivermemset",
 			"drvdir",
 			"DUID",
+			"EFER",
+			"Ehdr",
+			"ELFCLASS",
+			"EXECFN",
 			"exobyte",
 			"FAFAFA",
+			"FAFAFAI",
 			"Fargc",
 			"Fargv",
 			"fctprintf",
@@ -53,34 +63,56 @@
 			"filestatus",
 			"Framebuffer",
 			"fxrstor",
+			"fxsave",
 			"geopbyte",
 			"hwaddress",
 			"inportb",
+			"invlpg",
 			"ioapic",
 			"IPCID",
+			"iretq",
+			"isdelim",
 			"itrfb",
 			"KAPI",
 			"kfree",
 			"kmalloc",
+			"kproc",
+			"kthrd",
 			"lapic",
+			"lgdt",
 			"liballoc",
+			"limine",
 			"LMSLE",
+			"LSTAR",
 			"MADT",
+			"memmap",
+			"memsz",
+			"movw",
+			"MSRID",
 			"MWAIT",
 			"OEMID",
 			"OSFXSR",
 			"OSXMMEXCPT",
 			"OSXSAVE",
 			"outportb",
+			"PAGESZ",
 			"PCIDE",
 			"PDBR",
+			"PDPTE",
 			"PEXIT",
 			"PFLA",
+			"pheader",
+			"PHENT",
+			"phentsize",
+			"phnum",
+			"phoff",
+			"pushfq",
 			"rdmsr",
 			"readcr",
 			"Rodata",
 			"serialports",
 			"sgdt",
+			"showbuf",
 			"sidt",
 			"SMAP",
 			"SMBIOSBIOS",
@@ -89,6 +121,7 @@
 			"SVME",
 			"swapgs",
 			"TEXIT",
+			"tlbi",
 			"tracepagetable",
 			"ttbr",
 			"ubsan",
@@ -96,6 +129,7 @@
 			"UMIP",
 			"Unswap",
 			"UPID",
+			"vfctprintf",
 			"vfsdbg",
 			"Vidx",
 			"VMXE",
diff --git a/Fennix Userspace.code-workspace b/Fennix Userspace.code-workspace
index 24386b4b..0b4acfbd 100644
--- a/Fennix Userspace.code-workspace	
+++ b/Fennix Userspace.code-workspace	
@@ -9,6 +9,10 @@
 		"files.associations": {
 			"fex.hpp": "c",
 			"types.h": "c"
-		}
+		},
+		"cSpell.words": [
+			"FENNIX",
+			"preinit"
+		]
 	}
 }
diff --git a/tools/Makefile b/tools/Makefile
index 2802a57c..5ef4ca2a 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -4,7 +4,7 @@ export PATH := $(CROSS_DIR):$(PATH)
 
 QEMU_VERSION = qemu-7.1.0
 
-all: do_rep do_ep do_fex do_limine clone_all do_binutils64 do_binutils32 do_binutilsarm64 do_gcc64 do_gcc32 do_gccarm64 do_qemu
+all: do_rep do_ep do_fex do_limine clone_all do_binutils64 do_binutils32 do_binutilsarm64 do_gcc64 do_gcc32 do_gccarm64 do_qemu do_prep_toolchain do_toolchain_binutils64 do_toolchain_gcc64
 
 clean:
 	rm -f rep ep fex
@@ -74,3 +74,28 @@ do_gccarm64:
 	cd build-gccarm64 && \
 	../gcc/configure --target=aarch64-elf --prefix="$(CROSS_DIR)" --enable-languages=c,c++ --without-headers && \
 	make all-gcc -j$(shell nproc) && make install-gcc -j$(shell nproc)
+
+do_binutils64:
+	cd build-binutilsamd64 && \
+	../binutils-gdb/configure --target=amd64-elf --prefix="$(CROSS_DIR)" --with-sysroot --enable-shared --disable-werror && \
+	make all -j$(shell nproc) && make install
+
+do_prep_toolchain:
+	mkdir -p build-toolchain-binutils
+	mkdir -p build-toolchain-gcc
+	mkdir -p toolchain-binutils-gdb
+	mkdir -p toolchain-gcc
+	cp -r binutils-gdb/* toolchain-binutils-gdb
+	cp -r gcc/* toolchain-gcc
+	cd toolchain-binutils-gdb && git apply ../toolchain-binutils-gdb.patch && cd ..
+	cd toolchain-gcc && git apply ../toolchain-gcc.patch && cd ..
+
+do_toolchain_binutils64:
+	cd build-toolchain-binutils && \
+	../toolchain-binutils-gdb/configure --target=x86_64-fennix --prefix="$(CROSS_DIR)/toolchain" --with-sysroot --enable-shared --disable-werror && \
+	make all -j$(shell nproc) && make install
+
+do_toolchain_gcc64:
+	cd build-toolchain-gcc && \
+	../toolchain-gcc/configure --target=x86_64-fennix --prefix="$(CROSS_DIR)/toolchain" --enable-languages=c,c++ --enable-shared --without-headers && \
+	make all-gcc -j$(shell nproc) && make install-gcc -j$(shell nproc)
diff --git a/tools/toolchain-binutils-gdb.patch b/tools/toolchain-binutils-gdb.patch
new file mode 100644
index 00000000..6dd8e55b
--- /dev/null
+++ b/tools/toolchain-binutils-gdb.patch
@@ -0,0 +1,233 @@
+diff --git a/bfd/config.bfd b/bfd/config.bfd
+index 0bc27fdce97..10ce9c9aea2 100644
+--- a/bfd/config.bfd
++++ b/bfd/config.bfd
+@@ -1481,6 +1481,19 @@ case "${targ}" in
+     ;;
+ #endif
+ 
++  i[3-7]86-*-fennix*)
++    targ_defvec=i386_elf32_vec
++    targ_selvecs=
++    targ64_selvecs=x86_64_elf64_vec
++    ;;
++#ifdef BFD64
++  x86_64-*-fennix*)
++    targ_defvec=x86_64_elf64_vec
++    targ_selvecs=i386_elf32_vec
++    want64=true
++    ;;
++#endif
++
+ # END OF targmatch.h
+   bpf-*-*)
+     echo "*** Configuration $targ is not fully supported." >&2
+diff --git a/config.sub b/config.sub
+index dba16e84c77..4eedac1fbdc 100755
+--- a/config.sub
++++ b/config.sub
+@@ -1754,7 +1754,7 @@ case $os in
+ 	     | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
+ 	     | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
+ 	     | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
+-	     | fiwix* )
++	     | fiwix* | fennix* )
+ 		;;
+ 	# This one is extra strict with allowed versions
+ 	sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
+diff --git a/gas/configure.tgt b/gas/configure.tgt
+index 82f2d44f418..61c73a61034 100644
+--- a/gas/configure.tgt
++++ b/gas/configure.tgt
+@@ -264,6 +264,7 @@ case ${generic_target} in
+   i386-*-*nt*)				fmt=coff em=pe ;;
+   i386-*-rdos*)				fmt=elf ;;
+   i386-*-darwin*)			fmt=macho ;;
++  i386-*-fennix*)		  fmt=elf em=gnu ;;
+ 
+   ia16-*-elf*)				fmt=elf ;;
+ 
+diff --git a/ld/Makefile.am b/ld/Makefile.am
+index 65fef4e1690..8d541d2dc54 100644
+--- a/ld/Makefile.am
++++ b/ld/Makefile.am
+@@ -277,6 +277,7 @@ ALL_EMULATION_SOURCES = \
+ 	eelf_i386.c \
+ 	eelf_i386_be.c \
+ 	eelf_i386_fbsd.c \
++	eelf_i386_fennix.c \
+ 	eelf_i386_haiku.c \
+ 	eelf_i386_ldso.c \
+ 	eelf_i386_sol2.c \
+@@ -456,6 +457,7 @@ ALL_64_EMULATION_SOURCES = \
+ 	eelf_x86_64.c \
+ 	eelf_x86_64_cloudabi.c \
+ 	eelf_x86_64_fbsd.c \
++	eelf_x86_64_fennix.c \
+ 	eelf_x86_64_haiku.c \
+ 	eelf_x86_64_sol2.c \
+ 	ehppa64linux.c \
+@@ -771,6 +773,7 @@ $(ALL_EMULATION_SOURCES) $(ALL_64_EMULATION_SOURCES): $(GEN_DEPENDS)
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_be.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_fbsd.Pc@am__quote@
++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_fennix.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_haiku.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_ldso.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_sol2.Pc@am__quote@
+@@ -947,6 +950,7 @@ $(ALL_EMULATION_SOURCES) $(ALL_64_EMULATION_SOURCES): $(GEN_DEPENDS)
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_cloudabi.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_fbsd.Pc@am__quote@
++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_fennix.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_haiku.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_sol2.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ehppa64linux.Pc@am__quote@
+diff --git a/ld/Makefile.in b/ld/Makefile.in
+index ff4c916c27b..11593eda435 100644
+--- a/ld/Makefile.in
++++ b/ld/Makefile.in
+@@ -778,6 +778,7 @@ ALL_EMULATION_SOURCES = \
+ 	eelf_i386.c \
+ 	eelf_i386_be.c \
+ 	eelf_i386_fbsd.c \
++	eelf_i386_fennix.c \
+ 	eelf_i386_haiku.c \
+ 	eelf_i386_ldso.c \
+ 	eelf_i386_sol2.c \
+@@ -956,6 +957,7 @@ ALL_64_EMULATION_SOURCES = \
+ 	eelf_x86_64.c \
+ 	eelf_x86_64_cloudabi.c \
+ 	eelf_x86_64_fbsd.c \
++	eelf_x86_64_fennix.c \
+ 	eelf_x86_64_haiku.c \
+ 	eelf_x86_64_sol2.c \
+ 	ehppa64linux.c \
+@@ -1453,6 +1455,7 @@ distclean-compile:
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386.Po@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_be.Po@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_fbsd.Po@am__quote@
++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_fennix.Po@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_haiku.Po@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_ldso.Po@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_sol2.Po@am__quote@
+@@ -1463,6 +1466,7 @@ distclean-compile:
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64.Po@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_cloudabi.Po@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_fbsd.Po@am__quote@
++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_fennix.Po@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_haiku.Po@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_sol2.Po@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eh8300elf.Po@am__quote@
+@@ -2445,6 +2449,7 @@ $(ALL_EMULATION_SOURCES) $(ALL_64_EMULATION_SOURCES): $(GEN_DEPENDS)
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_be.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_fbsd.Pc@am__quote@
++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_fennix.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_haiku.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_ldso.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_i386_sol2.Pc@am__quote@
+@@ -2621,6 +2626,7 @@ $(ALL_EMULATION_SOURCES) $(ALL_64_EMULATION_SOURCES): $(GEN_DEPENDS)
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_cloudabi.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_fbsd.Pc@am__quote@
++@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_fennix.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_haiku.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/eelf_x86_64_sol2.Pc@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ehppa64linux.Pc@am__quote@
+diff --git a/ld/configure b/ld/configure
+index a4d30abfb1c..abdc71568cd 100755
+--- a/ld/configure
++++ b/ld/configure
+@@ -15165,7 +15165,7 @@ else
+     We can't simply define LARGE_OFF_T to be 9223372036854775807,
+     since some C++ compilers masquerading as C compilers
+     incorrectly reject 9223372036854775807.  */
+-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
++#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
+   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ 		       && LARGE_OFF_T % 2147483647 == 1)
+ 		      ? 1 : -1];
+@@ -15211,7 +15211,7 @@ else
+     We can't simply define LARGE_OFF_T to be 9223372036854775807,
+     since some C++ compilers masquerading as C compilers
+     incorrectly reject 9223372036854775807.  */
+-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
++#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
+   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ 		       && LARGE_OFF_T % 2147483647 == 1)
+ 		      ? 1 : -1];
+@@ -15235,7 +15235,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+     We can't simply define LARGE_OFF_T to be 9223372036854775807,
+     since some C++ compilers masquerading as C compilers
+     incorrectly reject 9223372036854775807.  */
+-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
++#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
+   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ 		       && LARGE_OFF_T % 2147483647 == 1)
+ 		      ? 1 : -1];
+@@ -15280,7 +15280,7 @@ else
+     We can't simply define LARGE_OFF_T to be 9223372036854775807,
+     since some C++ compilers masquerading as C compilers
+     incorrectly reject 9223372036854775807.  */
+-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
++#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
+   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ 		       && LARGE_OFF_T % 2147483647 == 1)
+ 		      ? 1 : -1];
+@@ -15304,7 +15304,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+     We can't simply define LARGE_OFF_T to be 9223372036854775807,
+     since some C++ compilers masquerading as C compilers
+     incorrectly reject 9223372036854775807.  */
+-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
++#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
+   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ 		       && LARGE_OFF_T % 2147483647 == 1)
+ 		      ? 1 : -1];
+@@ -16952,6 +16952,8 @@ main ()
+     if (*(data + i) != *(data3 + i))
+       return 14;
+   close (fd);
++  free (data);
++  free (data3);
+   return 0;
+ }
+ _ACEOF
+diff --git a/ld/configure.tgt b/ld/configure.tgt
+index 741b246f67e..fd37e8cb34c 100644
+--- a/ld/configure.tgt
++++ b/ld/configure.tgt
+@@ -408,6 +408,11 @@ i[3-7]86-*-elf* | i[3-7]86-*-rtems* | i[3-7]86-*-genode*)
+ i[3-7]86-*-dragonfly*)	targ_emul=elf_i386
+ 			targ_extra_emuls="elf_iamcu i386bsd"
+ 			;;
++i[3-7]86-*-fennix*)
++			targ_emul=elf_i386_fennix
++			targ_extra_emuls=elf_i386
++			targ64_extra_emuls="elf_x86_64_fennix elf_x86_64"
++			;;
+ i[3-7]86-*-freebsd* | i[3-7]86-*-kfreebsd*-gnu)
+ 			targ_emul=elf_i386_fbsd
+ 			targ_extra_emuls="elf_i386 elf_iamcu i386bsd"
+@@ -991,6 +996,10 @@ vax-*-linux-*)		targ_emul=elf32vax
+ 			;;
+ visium-*-elf)		targ_emul=elf32visium
+ 			;;
++x86_64-*-fennix*)
++			targ_emul=elf_x86_64_fennix
++			targ_extra_emuls="elf_i386_fennix elf_x86_64 elf_i386"
++			;;
+ x86_64-*-rdos*)		targ_emul=elf64rdos
+ 			;;
+ x86_64-*-cloudabi*)	targ_emul=elf_x86_64_cloudabi
+@@ -1100,6 +1109,10 @@ case "${target}" in
+   NATIVE_LIB_DIRS='/lib /usr/lib /usr/local/lib'
+   ;;
+ 
++*-*-fennix*)
++  NATIVE_LIB_DIRS='/system/lib'
++  ;;
++
+ hppa*64*-*-hpux11*)
+   NATIVE_LIB_DIRS=/usr/lib/pa20_64
+   ;;
diff --git a/tools/toolchain-gcc.patch b/tools/toolchain-gcc.patch
new file mode 100644
index 00000000..1c575b8b
--- /dev/null
+++ b/tools/toolchain-gcc.patch
@@ -0,0 +1,6122 @@
+diff --git a/config.sub b/config.sub
+index 38f3d037a78..e15a98ae991 100755
+--- a/config.sub
++++ b/config.sub
+@@ -1749,7 +1749,7 @@ case $os in
+ 	     | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
+ 	     | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
+ 	     | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
+-	     | fiwix* )
++	     | fiwix* | fennix* )
+ 		;;
+ 	# This one is extra strict with allowed versions
+ 	sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
+diff --git a/fixincludes/mkfixinc.sh b/fixincludes/mkfixinc.sh
+index df90720b716..37354d525c0 100755
+--- a/fixincludes/mkfixinc.sh
++++ b/fixincludes/mkfixinc.sh
+@@ -11,6 +11,8 @@ target=fixinc.sh
+ 
+ # Check for special fix rules for particular targets
+ case $machine in
++    *-fennix* | \
++    *-*-fennix* | \
+     i?86-*-cygwin* | \
+     i?86-*-mingw32* | \
+     x86_64-*-mingw32* | \
+diff --git a/gcc/config.gcc b/gcc/config.gcc
+index b5eda046033..9357f55d488 100644
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -827,6 +827,13 @@ case ${target} in
+   tmake_file="${tmake_file} t-freebsd"
+   target_has_targetdm=yes
+   ;;
++*-*-fennix*)
++  gas=yes
++  gnu_ld=yes
++  default_use_cxa_atexit=yes
++  use_gcc_stdint=provide
++  native_system_header_dir=/system/include
++  ;;
+ *-*-fuchsia*)
+   native_system_header_dir=/include
+   ;;
+@@ -1895,6 +1902,12 @@ x86_64-*-openbsd*)
+ 	gas=yes
+ 	gnu_ld=yes
+ 	;;
++i[34567]86-*-fennix*)
++    tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h glibc-stdint.h i386/i386elf.h fennix.h"
++    ;;
++x86_64-*-fennix*)
++    tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h glibc-stdint.h i386/i386elf.h i386/x86-64.h fennix.h"
++    ;;
+ i[34567]86-*-linux* | i[34567]86-*-kfreebsd*-gnu | i[34567]86-*-gnu* | i[34567]86-*-kopensolaris*-gnu)
+ 			# Intel 80386's running GNU/*
+ 			# with ELF format using glibc 2
+diff --git a/libgcc/config.host b/libgcc/config.host
+index eb23abe89f5..7575c590114 100644
+--- a/libgcc/config.host
++++ b/libgcc/config.host
+@@ -713,6 +713,14 @@ x86_64-*-freebsd*)
+ 	tmake_file="${tmake_file} i386/t-freebsd i386/t-crtstuff"
+ 	md_unwind_header=i386/freebsd-unwind.h
+ 	;;
++i[34567]86-*-fennix*)
++	extra_parts="$extra_parts crti.o crtbegin.o crtend.o crtn.o"
++	tmake_file="$tmake_file i386/t-crtstuff t-crtstuff-pic t-libgcc-pic"
++	;;
++x86_64-*-fennix*)
++	extra_parts="$extra_parts crti.o crtbegin.o crtend.o crtn.o"
++	tmake_file="$tmake_file i386/t-crtstuff t-crtstuff-pic t-libgcc-pic"
++	;;
+ i[34567]86-*-netbsdelf*)
+ 	tmake_file="${tmake_file} i386/t-crtstuff"
+ 	;;
+diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
+index 1f7017c08a4..92b8b82896f 100755
+--- a/libstdc++-v3/configure
++++ b/libstdc++-v3/configure
+@@ -5067,7 +5067,7 @@ else
+     We can't simply define LARGE_OFF_T to be 9223372036854775807,
+     since some C++ compilers masquerading as C compilers
+     incorrectly reject 9223372036854775807.  */
+-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
++#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
+   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ 		       && LARGE_OFF_T % 2147483647 == 1)
+ 		      ? 1 : -1];
+@@ -5113,7 +5113,7 @@ else
+     We can't simply define LARGE_OFF_T to be 9223372036854775807,
+     since some C++ compilers masquerading as C compilers
+     incorrectly reject 9223372036854775807.  */
+-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
++#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
+   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ 		       && LARGE_OFF_T % 2147483647 == 1)
+ 		      ? 1 : -1];
+@@ -5137,7 +5137,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+     We can't simply define LARGE_OFF_T to be 9223372036854775807,
+     since some C++ compilers masquerading as C compilers
+     incorrectly reject 9223372036854775807.  */
+-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
++#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
+   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ 		       && LARGE_OFF_T % 2147483647 == 1)
+ 		      ? 1 : -1];
+@@ -5182,7 +5182,7 @@ else
+     We can't simply define LARGE_OFF_T to be 9223372036854775807,
+     since some C++ compilers masquerading as C compilers
+     incorrectly reject 9223372036854775807.  */
+-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
++#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
+   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ 		       && LARGE_OFF_T % 2147483647 == 1)
+ 		      ? 1 : -1];
+@@ -5206,7 +5206,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+     We can't simply define LARGE_OFF_T to be 9223372036854775807,
+     since some C++ compilers masquerading as C compilers
+     incorrectly reject 9223372036854775807.  */
+-#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
++#define LARGE_OFF_T ((((off_t) 1 << 31) << 31) - 1 + (((off_t) 1 << 31) << 31))
+   int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ 		       && LARGE_OFF_T % 2147483647 == 1)
+ 		      ? 1 : -1];
+@@ -47569,6 +47569,5979 @@ fi
+ done
+ 
+     ;;
++  *-fennix*)
++
++  # All these tests are for C++; save the language and the compiler flags.
++  # The CXXFLAGS thing is suspicious, but based on similar bits previously
++  # found in GLIBCXX_CONFIGURE.
++
++  ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++  ac_test_CXXFLAGS="${CXXFLAGS+set}"
++  ac_save_CXXFLAGS="$CXXFLAGS"
++
++  # Check for -ffunction-sections -fdata-sections
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for g++ that supports -ffunction-sections -fdata-sections" >&5
++$as_echo_n "checking for g++ that supports -ffunction-sections -fdata-sections... " >&6; }
++  CXXFLAGS='-g -Werror -ffunction-sections -fdata-sections'
++  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++int foo; void bar() { };
++int
++main ()
++{
++
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  ac_fdsections=yes
++else
++  ac_fdsections=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++  if test "$ac_test_CXXFLAGS" = set; then
++    CXXFLAGS="$ac_save_CXXFLAGS"
++  else
++    # this is the suspicious part
++    CXXFLAGS=''
++  fi
++  if test x"$ac_fdsections" = x"yes"; then
++    SECTION_FLAGS='-ffunction-sections -fdata-sections'
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_fdsections" >&5
++$as_echo "$ac_fdsections" >&6; }
++
++  ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++
++
++  # If we're not using GNU ld, then there's no point in even trying these
++  # tests.  Check for that first.  We should have already tested for gld
++  # by now (in libtool), but require it now just to be safe...
++  test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
++  test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
++
++
++
++  # The name set by libtool depends on the version of libtool.  Shame on us
++  # for depending on an impl detail, but c'est la vie.  Older versions used
++  # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
++  # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
++  # makes sense).  We'll test with_gnu_ld everywhere else, so if that isn't
++  # set (hence we're using an older libtool), then set it.
++  if test x${with_gnu_ld+set} != xset; then
++    if test x${ac_cv_prog_gnu_ld+set} != xset; then
++      # We got through "ac_require(ac_prog_ld)" and still not set?  Huh?
++      with_gnu_ld=no
++    else
++      with_gnu_ld=$ac_cv_prog_gnu_ld
++    fi
++  fi
++
++  # Start by getting the version number.  I think the libtool test already
++  # does some of this, but throws away the result.
++  glibcxx_ld_is_gold=no
++  glibcxx_ld_is_mold=no
++  if test x"$with_gnu_ld" = x"yes"; then
++    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
++$as_echo_n "checking for ld version... " >&6; }
++
++    if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
++      glibcxx_ld_is_gold=yes
++    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
++      glibcxx_ld_is_mold=yes
++    fi
++    ldver=`$LD --version 2>/dev/null |
++	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
++
++    glibcxx_gnu_ld_version=`echo $ldver | \
++	   $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
++    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_gnu_ld_version" >&5
++$as_echo "$glibcxx_gnu_ld_version" >&6; }
++  fi
++
++  # Set --gc-sections.
++  glibcxx_have_gc_sections=no
++  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
++    if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
++      glibcxx_have_gc_sections=yes
++    fi
++  else
++    glibcxx_gcsections_min_ld=21602
++    if test x"$with_gnu_ld" = x"yes" &&
++	test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
++      glibcxx_have_gc_sections=yes
++    fi
++  fi
++  if test "$glibcxx_have_gc_sections" = "yes"; then
++    # Sufficiently young GNU ld it is!  Joy and bunny rabbits!
++    # NB: This flag only works reliably after 2.16.1. Configure tests
++    # for this are difficult, so hard wire a value that should work.
++
++    ac_test_CFLAGS="${CFLAGS+set}"
++    ac_save_CFLAGS="$CFLAGS"
++    CFLAGS='-Wl,--gc-sections'
++
++    # Check for -Wl,--gc-sections
++    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,--gc-sections" >&5
++$as_echo_n "checking for ld that supports -Wl,--gc-sections... " >&6; }
++    if test x$gcc_no_link = xyes; then
++  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
++fi
++cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++ int one(void) { return 1; }
++     int two(void) { return 2; }
++
++int
++main ()
++{
++ two();
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_c_try_link "$LINENO"; then :
++  ac_gcsections=yes
++else
++  ac_gcsections=no
++fi
++rm -f core conftest.err conftest.$ac_objext \
++    conftest$ac_exeext conftest.$ac_ext
++    if test "$ac_gcsections" = "yes"; then
++      rm -f conftest.c
++      touch conftest.c
++      if $CC -c conftest.c; then
++	if $LD --gc-sections -o conftest conftest.o 2>&1 | \
++	   grep "Warning: gc-sections option ignored" > /dev/null; then
++	  ac_gcsections=no
++	fi
++      fi
++      rm -f conftest.c conftest.o conftest
++    fi
++    if test "$ac_gcsections" = "yes"; then
++      SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
++    fi
++    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_gcsections" >&5
++$as_echo "$ac_gcsections" >&6; }
++
++    if test "$ac_test_CFLAGS" = set; then
++      CFLAGS="$ac_save_CFLAGS"
++    else
++      # this is the suspicious part
++      CFLAGS=''
++    fi
++  fi
++
++  # Set -z,relro.
++  # Note this is only for shared objects.
++  ac_ld_relro=no
++  if test x"$with_gnu_ld" = x"yes"; then
++    # cygwin and mingw uses PE, which has no ELF relro support,
++    # multi target ld may confuse configure machinery
++    case "$host" in
++    *-*-cygwin*)
++     ;;
++    *-*-mingw*)
++     ;;
++    *)
++      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,-z,relro" >&5
++$as_echo_n "checking for ld that supports -Wl,-z,relro... " >&6; }
++      cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"`
++      if test -n "$cxx_z_relo"; then
++        OPT_LDFLAGS="-Wl,-z,relro"
++        ac_ld_relro=yes
++      fi
++      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ld_relro" >&5
++$as_echo "$ac_ld_relro" >&6; }
++    esac
++  fi
++
++  # Set linker optimization flags.
++  if test x"$with_gnu_ld" = x"yes"; then
++    OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
++  fi
++
++
++
++
++
++  ac_test_CXXFLAGS="${CXXFLAGS+set}"
++  ac_save_CXXFLAGS="$CXXFLAGS"
++  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
++
++    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5
++$as_echo_n "checking for sin in -lm... " >&6; }
++if ${ac_cv_lib_m_sin+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++  ac_check_lib_save_LIBS=$LIBS
++LIBS="-lm  $LIBS"
++if test x$gcc_no_link = xyes; then
++  as_fn_error $? "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
++fi
++cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++
++/* Override any GCC internal prototype to avoid an error.
++   Use char because int might match the return type of a GCC
++   builtin and then its argument prototype would still apply.  */
++#ifdef __cplusplus
++extern "C"
++#endif
++char sin ();
++int
++main ()
++{
++return sin ();
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_c_try_link "$LINENO"; then :
++  ac_cv_lib_m_sin=yes
++else
++  ac_cv_lib_m_sin=no
++fi
++rm -f core conftest.err conftest.$ac_objext \
++    conftest$ac_exeext conftest.$ac_ext
++LIBS=$ac_check_lib_save_LIBS
++fi
++{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sin" >&5
++$as_echo "$ac_cv_lib_m_sin" >&6; }
++if test "x$ac_cv_lib_m_sin" = xyes; then :
++  libm="-lm"
++fi
++
++  ac_save_LIBS="$LIBS"
++  LIBS="$LIBS $libm"
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinf declaration" >&5
++$as_echo_n "checking for isinf declaration... " >&6; }
++  if test x${glibcxx_cv_func_isinf_use+set} != xset; then
++    if ${glibcxx_cv_func_isinf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ isinf(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_isinf_use=yes
++else
++  glibcxx_cv_func_isinf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinf_use" >&5
++$as_echo "$glibcxx_cv_func_isinf_use" >&6; }
++
++  if test x$glibcxx_cv_func_isinf_use = x"yes"; then
++    for ac_func in isinf
++do :
++  ac_fn_c_check_func "$LINENO" "isinf" "ac_cv_func_isinf"
++if test "x$ac_cv_func_isinf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_ISINF 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinf declaration" >&5
++$as_echo_n "checking for _isinf declaration... " >&6; }
++  if test x${glibcxx_cv_func__isinf_use+set} != xset; then
++    if ${glibcxx_cv_func__isinf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _isinf(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__isinf_use=yes
++else
++  glibcxx_cv_func__isinf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinf_use" >&5
++$as_echo "$glibcxx_cv_func__isinf_use" >&6; }
++
++    if test x$glibcxx_cv_func__isinf_use = x"yes"; then
++      for ac_func in _isinf
++do :
++  ac_fn_c_check_func "$LINENO" "_isinf" "ac_cv_func__isinf"
++if test "x$ac_cv_func__isinf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__ISINF 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnan declaration" >&5
++$as_echo_n "checking for isnan declaration... " >&6; }
++  if test x${glibcxx_cv_func_isnan_use+set} != xset; then
++    if ${glibcxx_cv_func_isnan_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ isnan(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_isnan_use=yes
++else
++  glibcxx_cv_func_isnan_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnan_use" >&5
++$as_echo "$glibcxx_cv_func_isnan_use" >&6; }
++
++  if test x$glibcxx_cv_func_isnan_use = x"yes"; then
++    for ac_func in isnan
++do :
++  ac_fn_c_check_func "$LINENO" "isnan" "ac_cv_func_isnan"
++if test "x$ac_cv_func_isnan" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_ISNAN 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnan declaration" >&5
++$as_echo_n "checking for _isnan declaration... " >&6; }
++  if test x${glibcxx_cv_func__isnan_use+set} != xset; then
++    if ${glibcxx_cv_func__isnan_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _isnan(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__isnan_use=yes
++else
++  glibcxx_cv_func__isnan_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnan_use" >&5
++$as_echo "$glibcxx_cv_func__isnan_use" >&6; }
++
++    if test x$glibcxx_cv_func__isnan_use = x"yes"; then
++      for ac_func in _isnan
++do :
++  ac_fn_c_check_func "$LINENO" "_isnan" "ac_cv_func__isnan"
++if test "x$ac_cv_func__isnan" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__ISNAN 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finite declaration" >&5
++$as_echo_n "checking for finite declaration... " >&6; }
++  if test x${glibcxx_cv_func_finite_use+set} != xset; then
++    if ${glibcxx_cv_func_finite_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ finite(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_finite_use=yes
++else
++  glibcxx_cv_func_finite_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finite_use" >&5
++$as_echo "$glibcxx_cv_func_finite_use" >&6; }
++
++  if test x$glibcxx_cv_func_finite_use = x"yes"; then
++    for ac_func in finite
++do :
++  ac_fn_c_check_func "$LINENO" "finite" "ac_cv_func_finite"
++if test "x$ac_cv_func_finite" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_FINITE 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finite declaration" >&5
++$as_echo_n "checking for _finite declaration... " >&6; }
++  if test x${glibcxx_cv_func__finite_use+set} != xset; then
++    if ${glibcxx_cv_func__finite_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _finite(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__finite_use=yes
++else
++  glibcxx_cv_func__finite_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finite_use" >&5
++$as_echo "$glibcxx_cv_func__finite_use" >&6; }
++
++    if test x$glibcxx_cv_func__finite_use = x"yes"; then
++      for ac_func in _finite
++do :
++  ac_fn_c_check_func "$LINENO" "_finite" "ac_cv_func__finite"
++if test "x$ac_cv_func__finite" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__FINITE 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincos declaration" >&5
++$as_echo_n "checking for sincos declaration... " >&6; }
++  if test x${glibcxx_cv_func_sincos_use+set} != xset; then
++    if ${glibcxx_cv_func_sincos_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ sincos(0, 0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_sincos_use=yes
++else
++  glibcxx_cv_func_sincos_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincos_use" >&5
++$as_echo "$glibcxx_cv_func_sincos_use" >&6; }
++
++  if test x$glibcxx_cv_func_sincos_use = x"yes"; then
++    for ac_func in sincos
++do :
++  ac_fn_c_check_func "$LINENO" "sincos" "ac_cv_func_sincos"
++if test "x$ac_cv_func_sincos" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_SINCOS 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincos declaration" >&5
++$as_echo_n "checking for _sincos declaration... " >&6; }
++  if test x${glibcxx_cv_func__sincos_use+set} != xset; then
++    if ${glibcxx_cv_func__sincos_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _sincos(0, 0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__sincos_use=yes
++else
++  glibcxx_cv_func__sincos_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincos_use" >&5
++$as_echo "$glibcxx_cv_func__sincos_use" >&6; }
++
++    if test x$glibcxx_cv_func__sincos_use = x"yes"; then
++      for ac_func in _sincos
++do :
++  ac_fn_c_check_func "$LINENO" "_sincos" "ac_cv_func__sincos"
++if test "x$ac_cv_func__sincos" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__SINCOS 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fpclass declaration" >&5
++$as_echo_n "checking for fpclass declaration... " >&6; }
++  if test x${glibcxx_cv_func_fpclass_use+set} != xset; then
++    if ${glibcxx_cv_func_fpclass_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ fpclass(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_fpclass_use=yes
++else
++  glibcxx_cv_func_fpclass_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fpclass_use" >&5
++$as_echo "$glibcxx_cv_func_fpclass_use" >&6; }
++
++  if test x$glibcxx_cv_func_fpclass_use = x"yes"; then
++    for ac_func in fpclass
++do :
++  ac_fn_c_check_func "$LINENO" "fpclass" "ac_cv_func_fpclass"
++if test "x$ac_cv_func_fpclass" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_FPCLASS 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fpclass declaration" >&5
++$as_echo_n "checking for _fpclass declaration... " >&6; }
++  if test x${glibcxx_cv_func__fpclass_use+set} != xset; then
++    if ${glibcxx_cv_func__fpclass_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _fpclass(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__fpclass_use=yes
++else
++  glibcxx_cv_func__fpclass_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fpclass_use" >&5
++$as_echo "$glibcxx_cv_func__fpclass_use" >&6; }
++
++    if test x$glibcxx_cv_func__fpclass_use = x"yes"; then
++      for ac_func in _fpclass
++do :
++  ac_fn_c_check_func "$LINENO" "_fpclass" "ac_cv_func__fpclass"
++if test "x$ac_cv_func__fpclass" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__FPCLASS 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for qfpclass declaration" >&5
++$as_echo_n "checking for qfpclass declaration... " >&6; }
++  if test x${glibcxx_cv_func_qfpclass_use+set} != xset; then
++    if ${glibcxx_cv_func_qfpclass_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ qfpclass(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_qfpclass_use=yes
++else
++  glibcxx_cv_func_qfpclass_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_qfpclass_use" >&5
++$as_echo "$glibcxx_cv_func_qfpclass_use" >&6; }
++
++  if test x$glibcxx_cv_func_qfpclass_use = x"yes"; then
++    for ac_func in qfpclass
++do :
++  ac_fn_c_check_func "$LINENO" "qfpclass" "ac_cv_func_qfpclass"
++if test "x$ac_cv_func_qfpclass" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_QFPCLASS 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _qfpclass declaration" >&5
++$as_echo_n "checking for _qfpclass declaration... " >&6; }
++  if test x${glibcxx_cv_func__qfpclass_use+set} != xset; then
++    if ${glibcxx_cv_func__qfpclass_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _qfpclass(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__qfpclass_use=yes
++else
++  glibcxx_cv_func__qfpclass_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__qfpclass_use" >&5
++$as_echo "$glibcxx_cv_func__qfpclass_use" >&6; }
++
++    if test x$glibcxx_cv_func__qfpclass_use = x"yes"; then
++      for ac_func in _qfpclass
++do :
++  ac_fn_c_check_func "$LINENO" "_qfpclass" "ac_cv_func__qfpclass"
++if test "x$ac_cv_func__qfpclass" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__QFPCLASS 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypot declaration" >&5
++$as_echo_n "checking for hypot declaration... " >&6; }
++  if test x${glibcxx_cv_func_hypot_use+set} != xset; then
++    if ${glibcxx_cv_func_hypot_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ hypot(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_hypot_use=yes
++else
++  glibcxx_cv_func_hypot_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypot_use" >&5
++$as_echo "$glibcxx_cv_func_hypot_use" >&6; }
++
++  if test x$glibcxx_cv_func_hypot_use = x"yes"; then
++    for ac_func in hypot
++do :
++  ac_fn_c_check_func "$LINENO" "hypot" "ac_cv_func_hypot"
++if test "x$ac_cv_func_hypot" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_HYPOT 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypot declaration" >&5
++$as_echo_n "checking for _hypot declaration... " >&6; }
++  if test x${glibcxx_cv_func__hypot_use+set} != xset; then
++    if ${glibcxx_cv_func__hypot_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _hypot(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__hypot_use=yes
++else
++  glibcxx_cv_func__hypot_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypot_use" >&5
++$as_echo "$glibcxx_cv_func__hypot_use" >&6; }
++
++    if test x$glibcxx_cv_func__hypot_use = x"yes"; then
++      for ac_func in _hypot
++do :
++  ac_fn_c_check_func "$LINENO" "_hypot" "ac_cv_func__hypot"
++if test "x$ac_cv_func__hypot" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__HYPOT 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float trig functions" >&5
++$as_echo_n "checking for float trig functions... " >&6; }
++  if ${glibcxx_cv_func_float_trig_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++    ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++acosf (0); asinf (0); atanf (0); cosf (0); sinf (0); tanf (0); coshf (0); sinhf (0); tanhf (0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_float_trig_use=yes
++else
++  glibcxx_cv_func_float_trig_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++    ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++fi
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_trig_use" >&5
++$as_echo "$glibcxx_cv_func_float_trig_use" >&6; }
++  if test x$glibcxx_cv_func_float_trig_use = x"yes"; then
++    for ac_func in acosf asinf atanf cosf sinf tanf coshf sinhf tanhf
++do :
++  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
++ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
++if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
++  cat >>confdefs.h <<_ACEOF
++#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
++_ACEOF
++
++fi
++done
++
++  else
++    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float trig functions" >&5
++$as_echo_n "checking for _float trig functions... " >&6; }
++    if ${glibcxx_cv_func__float_trig_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++_acosf (0); _asinf (0); _atanf (0); _cosf (0); _sinf (0); _tanf (0); _coshf (0); _sinhf (0); _tanhf (0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__float_trig_use=yes
++else
++  glibcxx_cv_func__float_trig_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++fi
++
++    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_trig_use" >&5
++$as_echo "$glibcxx_cv_func__float_trig_use" >&6; }
++    if test x$glibcxx_cv_func__float_trig_use = x"yes"; then
++      for ac_func in _acosf _asinf _atanf _cosf _sinf _tanf _coshf _sinhf _tanhf
++do :
++  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
++ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
++if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
++  cat >>confdefs.h <<_ACEOF
++#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for float round functions" >&5
++$as_echo_n "checking for float round functions... " >&6; }
++  if ${glibcxx_cv_func_float_round_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++    ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ceilf (0); floorf (0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_float_round_use=yes
++else
++  glibcxx_cv_func_float_round_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++    ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++fi
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_float_round_use" >&5
++$as_echo "$glibcxx_cv_func_float_round_use" >&6; }
++  if test x$glibcxx_cv_func_float_round_use = x"yes"; then
++    for ac_func in ceilf floorf
++do :
++  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
++ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
++if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
++  cat >>confdefs.h <<_ACEOF
++#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
++_ACEOF
++
++fi
++done
++
++  else
++    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _float round functions" >&5
++$as_echo_n "checking for _float round functions... " >&6; }
++    if ${glibcxx_cv_func__float_round_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++_ceilf (0); _floorf (0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__float_round_use=yes
++else
++  glibcxx_cv_func__float_round_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++fi
++
++    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__float_round_use" >&5
++$as_echo "$glibcxx_cv_func__float_round_use" >&6; }
++    if test x$glibcxx_cv_func__float_round_use = x"yes"; then
++      for ac_func in _ceilf _floorf
++do :
++  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
++ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
++if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
++  cat >>confdefs.h <<_ACEOF
++#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expf declaration" >&5
++$as_echo_n "checking for expf declaration... " >&6; }
++  if test x${glibcxx_cv_func_expf_use+set} != xset; then
++    if ${glibcxx_cv_func_expf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ expf(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_expf_use=yes
++else
++  glibcxx_cv_func_expf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expf_use" >&5
++$as_echo "$glibcxx_cv_func_expf_use" >&6; }
++
++  if test x$glibcxx_cv_func_expf_use = x"yes"; then
++    for ac_func in expf
++do :
++  ac_fn_c_check_func "$LINENO" "expf" "ac_cv_func_expf"
++if test "x$ac_cv_func_expf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_EXPF 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expf declaration" >&5
++$as_echo_n "checking for _expf declaration... " >&6; }
++  if test x${glibcxx_cv_func__expf_use+set} != xset; then
++    if ${glibcxx_cv_func__expf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _expf(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__expf_use=yes
++else
++  glibcxx_cv_func__expf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expf_use" >&5
++$as_echo "$glibcxx_cv_func__expf_use" >&6; }
++
++    if test x$glibcxx_cv_func__expf_use = x"yes"; then
++      for ac_func in _expf
++do :
++  ac_fn_c_check_func "$LINENO" "_expf" "ac_cv_func__expf"
++if test "x$ac_cv_func__expf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__EXPF 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanf declaration" >&5
++$as_echo_n "checking for isnanf declaration... " >&6; }
++  if test x${glibcxx_cv_func_isnanf_use+set} != xset; then
++    if ${glibcxx_cv_func_isnanf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ isnanf(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_isnanf_use=yes
++else
++  glibcxx_cv_func_isnanf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanf_use" >&5
++$as_echo "$glibcxx_cv_func_isnanf_use" >&6; }
++
++  if test x$glibcxx_cv_func_isnanf_use = x"yes"; then
++    for ac_func in isnanf
++do :
++  ac_fn_c_check_func "$LINENO" "isnanf" "ac_cv_func_isnanf"
++if test "x$ac_cv_func_isnanf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_ISNANF 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanf declaration" >&5
++$as_echo_n "checking for _isnanf declaration... " >&6; }
++  if test x${glibcxx_cv_func__isnanf_use+set} != xset; then
++    if ${glibcxx_cv_func__isnanf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _isnanf(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__isnanf_use=yes
++else
++  glibcxx_cv_func__isnanf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanf_use" >&5
++$as_echo "$glibcxx_cv_func__isnanf_use" >&6; }
++
++    if test x$glibcxx_cv_func__isnanf_use = x"yes"; then
++      for ac_func in _isnanf
++do :
++  ac_fn_c_check_func "$LINENO" "_isnanf" "ac_cv_func__isnanf"
++if test "x$ac_cv_func__isnanf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__ISNANF 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinff declaration" >&5
++$as_echo_n "checking for isinff declaration... " >&6; }
++  if test x${glibcxx_cv_func_isinff_use+set} != xset; then
++    if ${glibcxx_cv_func_isinff_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ isinff(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_isinff_use=yes
++else
++  glibcxx_cv_func_isinff_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinff_use" >&5
++$as_echo "$glibcxx_cv_func_isinff_use" >&6; }
++
++  if test x$glibcxx_cv_func_isinff_use = x"yes"; then
++    for ac_func in isinff
++do :
++  ac_fn_c_check_func "$LINENO" "isinff" "ac_cv_func_isinff"
++if test "x$ac_cv_func_isinff" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_ISINFF 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinff declaration" >&5
++$as_echo_n "checking for _isinff declaration... " >&6; }
++  if test x${glibcxx_cv_func__isinff_use+set} != xset; then
++    if ${glibcxx_cv_func__isinff_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _isinff(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__isinff_use=yes
++else
++  glibcxx_cv_func__isinff_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinff_use" >&5
++$as_echo "$glibcxx_cv_func__isinff_use" >&6; }
++
++    if test x$glibcxx_cv_func__isinff_use = x"yes"; then
++      for ac_func in _isinff
++do :
++  ac_fn_c_check_func "$LINENO" "_isinff" "ac_cv_func__isinff"
++if test "x$ac_cv_func__isinff" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__ISINFF 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2f declaration" >&5
++$as_echo_n "checking for atan2f declaration... " >&6; }
++  if test x${glibcxx_cv_func_atan2f_use+set} != xset; then
++    if ${glibcxx_cv_func_atan2f_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ atan2f(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_atan2f_use=yes
++else
++  glibcxx_cv_func_atan2f_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2f_use" >&5
++$as_echo "$glibcxx_cv_func_atan2f_use" >&6; }
++
++  if test x$glibcxx_cv_func_atan2f_use = x"yes"; then
++    for ac_func in atan2f
++do :
++  ac_fn_c_check_func "$LINENO" "atan2f" "ac_cv_func_atan2f"
++if test "x$ac_cv_func_atan2f" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_ATAN2F 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2f declaration" >&5
++$as_echo_n "checking for _atan2f declaration... " >&6; }
++  if test x${glibcxx_cv_func__atan2f_use+set} != xset; then
++    if ${glibcxx_cv_func__atan2f_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _atan2f(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__atan2f_use=yes
++else
++  glibcxx_cv_func__atan2f_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2f_use" >&5
++$as_echo "$glibcxx_cv_func__atan2f_use" >&6; }
++
++    if test x$glibcxx_cv_func__atan2f_use = x"yes"; then
++      for ac_func in _atan2f
++do :
++  ac_fn_c_check_func "$LINENO" "_atan2f" "ac_cv_func__atan2f"
++if test "x$ac_cv_func__atan2f" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__ATAN2F 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsf declaration" >&5
++$as_echo_n "checking for fabsf declaration... " >&6; }
++  if test x${glibcxx_cv_func_fabsf_use+set} != xset; then
++    if ${glibcxx_cv_func_fabsf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ fabsf(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_fabsf_use=yes
++else
++  glibcxx_cv_func_fabsf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsf_use" >&5
++$as_echo "$glibcxx_cv_func_fabsf_use" >&6; }
++
++  if test x$glibcxx_cv_func_fabsf_use = x"yes"; then
++    for ac_func in fabsf
++do :
++  ac_fn_c_check_func "$LINENO" "fabsf" "ac_cv_func_fabsf"
++if test "x$ac_cv_func_fabsf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_FABSF 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsf declaration" >&5
++$as_echo_n "checking for _fabsf declaration... " >&6; }
++  if test x${glibcxx_cv_func__fabsf_use+set} != xset; then
++    if ${glibcxx_cv_func__fabsf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _fabsf(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__fabsf_use=yes
++else
++  glibcxx_cv_func__fabsf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsf_use" >&5
++$as_echo "$glibcxx_cv_func__fabsf_use" >&6; }
++
++    if test x$glibcxx_cv_func__fabsf_use = x"yes"; then
++      for ac_func in _fabsf
++do :
++  ac_fn_c_check_func "$LINENO" "_fabsf" "ac_cv_func__fabsf"
++if test "x$ac_cv_func__fabsf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__FABSF 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodf declaration" >&5
++$as_echo_n "checking for fmodf declaration... " >&6; }
++  if test x${glibcxx_cv_func_fmodf_use+set} != xset; then
++    if ${glibcxx_cv_func_fmodf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ fmodf(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_fmodf_use=yes
++else
++  glibcxx_cv_func_fmodf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodf_use" >&5
++$as_echo "$glibcxx_cv_func_fmodf_use" >&6; }
++
++  if test x$glibcxx_cv_func_fmodf_use = x"yes"; then
++    for ac_func in fmodf
++do :
++  ac_fn_c_check_func "$LINENO" "fmodf" "ac_cv_func_fmodf"
++if test "x$ac_cv_func_fmodf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_FMODF 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodf declaration" >&5
++$as_echo_n "checking for _fmodf declaration... " >&6; }
++  if test x${glibcxx_cv_func__fmodf_use+set} != xset; then
++    if ${glibcxx_cv_func__fmodf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _fmodf(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__fmodf_use=yes
++else
++  glibcxx_cv_func__fmodf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodf_use" >&5
++$as_echo "$glibcxx_cv_func__fmodf_use" >&6; }
++
++    if test x$glibcxx_cv_func__fmodf_use = x"yes"; then
++      for ac_func in _fmodf
++do :
++  ac_fn_c_check_func "$LINENO" "_fmodf" "ac_cv_func__fmodf"
++if test "x$ac_cv_func__fmodf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__FMODF 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpf declaration" >&5
++$as_echo_n "checking for frexpf declaration... " >&6; }
++  if test x${glibcxx_cv_func_frexpf_use+set} != xset; then
++    if ${glibcxx_cv_func_frexpf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ frexpf(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_frexpf_use=yes
++else
++  glibcxx_cv_func_frexpf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpf_use" >&5
++$as_echo "$glibcxx_cv_func_frexpf_use" >&6; }
++
++  if test x$glibcxx_cv_func_frexpf_use = x"yes"; then
++    for ac_func in frexpf
++do :
++  ac_fn_c_check_func "$LINENO" "frexpf" "ac_cv_func_frexpf"
++if test "x$ac_cv_func_frexpf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_FREXPF 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpf declaration" >&5
++$as_echo_n "checking for _frexpf declaration... " >&6; }
++  if test x${glibcxx_cv_func__frexpf_use+set} != xset; then
++    if ${glibcxx_cv_func__frexpf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _frexpf(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__frexpf_use=yes
++else
++  glibcxx_cv_func__frexpf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpf_use" >&5
++$as_echo "$glibcxx_cv_func__frexpf_use" >&6; }
++
++    if test x$glibcxx_cv_func__frexpf_use = x"yes"; then
++      for ac_func in _frexpf
++do :
++  ac_fn_c_check_func "$LINENO" "_frexpf" "ac_cv_func__frexpf"
++if test "x$ac_cv_func__frexpf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__FREXPF 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotf declaration" >&5
++$as_echo_n "checking for hypotf declaration... " >&6; }
++  if test x${glibcxx_cv_func_hypotf_use+set} != xset; then
++    if ${glibcxx_cv_func_hypotf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ hypotf(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_hypotf_use=yes
++else
++  glibcxx_cv_func_hypotf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotf_use" >&5
++$as_echo "$glibcxx_cv_func_hypotf_use" >&6; }
++
++  if test x$glibcxx_cv_func_hypotf_use = x"yes"; then
++    for ac_func in hypotf
++do :
++  ac_fn_c_check_func "$LINENO" "hypotf" "ac_cv_func_hypotf"
++if test "x$ac_cv_func_hypotf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_HYPOTF 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotf declaration" >&5
++$as_echo_n "checking for _hypotf declaration... " >&6; }
++  if test x${glibcxx_cv_func__hypotf_use+set} != xset; then
++    if ${glibcxx_cv_func__hypotf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _hypotf(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__hypotf_use=yes
++else
++  glibcxx_cv_func__hypotf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotf_use" >&5
++$as_echo "$glibcxx_cv_func__hypotf_use" >&6; }
++
++    if test x$glibcxx_cv_func__hypotf_use = x"yes"; then
++      for ac_func in _hypotf
++do :
++  ac_fn_c_check_func "$LINENO" "_hypotf" "ac_cv_func__hypotf"
++if test "x$ac_cv_func__hypotf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__HYPOTF 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpf declaration" >&5
++$as_echo_n "checking for ldexpf declaration... " >&6; }
++  if test x${glibcxx_cv_func_ldexpf_use+set} != xset; then
++    if ${glibcxx_cv_func_ldexpf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ ldexpf(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_ldexpf_use=yes
++else
++  glibcxx_cv_func_ldexpf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpf_use" >&5
++$as_echo "$glibcxx_cv_func_ldexpf_use" >&6; }
++
++  if test x$glibcxx_cv_func_ldexpf_use = x"yes"; then
++    for ac_func in ldexpf
++do :
++  ac_fn_c_check_func "$LINENO" "ldexpf" "ac_cv_func_ldexpf"
++if test "x$ac_cv_func_ldexpf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_LDEXPF 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpf declaration" >&5
++$as_echo_n "checking for _ldexpf declaration... " >&6; }
++  if test x${glibcxx_cv_func__ldexpf_use+set} != xset; then
++    if ${glibcxx_cv_func__ldexpf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _ldexpf(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__ldexpf_use=yes
++else
++  glibcxx_cv_func__ldexpf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpf_use" >&5
++$as_echo "$glibcxx_cv_func__ldexpf_use" >&6; }
++
++    if test x$glibcxx_cv_func__ldexpf_use = x"yes"; then
++      for ac_func in _ldexpf
++do :
++  ac_fn_c_check_func "$LINENO" "_ldexpf" "ac_cv_func__ldexpf"
++if test "x$ac_cv_func__ldexpf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__LDEXPF 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logf declaration" >&5
++$as_echo_n "checking for logf declaration... " >&6; }
++  if test x${glibcxx_cv_func_logf_use+set} != xset; then
++    if ${glibcxx_cv_func_logf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ logf(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_logf_use=yes
++else
++  glibcxx_cv_func_logf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logf_use" >&5
++$as_echo "$glibcxx_cv_func_logf_use" >&6; }
++
++  if test x$glibcxx_cv_func_logf_use = x"yes"; then
++    for ac_func in logf
++do :
++  ac_fn_c_check_func "$LINENO" "logf" "ac_cv_func_logf"
++if test "x$ac_cv_func_logf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_LOGF 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logf declaration" >&5
++$as_echo_n "checking for _logf declaration... " >&6; }
++  if test x${glibcxx_cv_func__logf_use+set} != xset; then
++    if ${glibcxx_cv_func__logf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _logf(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__logf_use=yes
++else
++  glibcxx_cv_func__logf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logf_use" >&5
++$as_echo "$glibcxx_cv_func__logf_use" >&6; }
++
++    if test x$glibcxx_cv_func__logf_use = x"yes"; then
++      for ac_func in _logf
++do :
++  ac_fn_c_check_func "$LINENO" "_logf" "ac_cv_func__logf"
++if test "x$ac_cv_func__logf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__LOGF 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10f declaration" >&5
++$as_echo_n "checking for log10f declaration... " >&6; }
++  if test x${glibcxx_cv_func_log10f_use+set} != xset; then
++    if ${glibcxx_cv_func_log10f_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ log10f(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_log10f_use=yes
++else
++  glibcxx_cv_func_log10f_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10f_use" >&5
++$as_echo "$glibcxx_cv_func_log10f_use" >&6; }
++
++  if test x$glibcxx_cv_func_log10f_use = x"yes"; then
++    for ac_func in log10f
++do :
++  ac_fn_c_check_func "$LINENO" "log10f" "ac_cv_func_log10f"
++if test "x$ac_cv_func_log10f" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_LOG10F 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10f declaration" >&5
++$as_echo_n "checking for _log10f declaration... " >&6; }
++  if test x${glibcxx_cv_func__log10f_use+set} != xset; then
++    if ${glibcxx_cv_func__log10f_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _log10f(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__log10f_use=yes
++else
++  glibcxx_cv_func__log10f_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10f_use" >&5
++$as_echo "$glibcxx_cv_func__log10f_use" >&6; }
++
++    if test x$glibcxx_cv_func__log10f_use = x"yes"; then
++      for ac_func in _log10f
++do :
++  ac_fn_c_check_func "$LINENO" "_log10f" "ac_cv_func__log10f"
++if test "x$ac_cv_func__log10f" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__LOG10F 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modff declaration" >&5
++$as_echo_n "checking for modff declaration... " >&6; }
++  if test x${glibcxx_cv_func_modff_use+set} != xset; then
++    if ${glibcxx_cv_func_modff_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ modff(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_modff_use=yes
++else
++  glibcxx_cv_func_modff_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modff_use" >&5
++$as_echo "$glibcxx_cv_func_modff_use" >&6; }
++
++  if test x$glibcxx_cv_func_modff_use = x"yes"; then
++    for ac_func in modff
++do :
++  ac_fn_c_check_func "$LINENO" "modff" "ac_cv_func_modff"
++if test "x$ac_cv_func_modff" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_MODFF 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modff declaration" >&5
++$as_echo_n "checking for _modff declaration... " >&6; }
++  if test x${glibcxx_cv_func__modff_use+set} != xset; then
++    if ${glibcxx_cv_func__modff_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _modff(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__modff_use=yes
++else
++  glibcxx_cv_func__modff_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modff_use" >&5
++$as_echo "$glibcxx_cv_func__modff_use" >&6; }
++
++    if test x$glibcxx_cv_func__modff_use = x"yes"; then
++      for ac_func in _modff
++do :
++  ac_fn_c_check_func "$LINENO" "_modff" "ac_cv_func__modff"
++if test "x$ac_cv_func__modff" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__MODFF 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modf declaration" >&5
++$as_echo_n "checking for modf declaration... " >&6; }
++  if test x${glibcxx_cv_func_modf_use+set} != xset; then
++    if ${glibcxx_cv_func_modf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ modf(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_modf_use=yes
++else
++  glibcxx_cv_func_modf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modf_use" >&5
++$as_echo "$glibcxx_cv_func_modf_use" >&6; }
++
++  if test x$glibcxx_cv_func_modf_use = x"yes"; then
++    for ac_func in modf
++do :
++  ac_fn_c_check_func "$LINENO" "modf" "ac_cv_func_modf"
++if test "x$ac_cv_func_modf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_MODF 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modf declaration" >&5
++$as_echo_n "checking for _modf declaration... " >&6; }
++  if test x${glibcxx_cv_func__modf_use+set} != xset; then
++    if ${glibcxx_cv_func__modf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _modf(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__modf_use=yes
++else
++  glibcxx_cv_func__modf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modf_use" >&5
++$as_echo "$glibcxx_cv_func__modf_use" >&6; }
++
++    if test x$glibcxx_cv_func__modf_use = x"yes"; then
++      for ac_func in _modf
++do :
++  ac_fn_c_check_func "$LINENO" "_modf" "ac_cv_func__modf"
++if test "x$ac_cv_func__modf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__MODF 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powf declaration" >&5
++$as_echo_n "checking for powf declaration... " >&6; }
++  if test x${glibcxx_cv_func_powf_use+set} != xset; then
++    if ${glibcxx_cv_func_powf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ powf(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_powf_use=yes
++else
++  glibcxx_cv_func_powf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powf_use" >&5
++$as_echo "$glibcxx_cv_func_powf_use" >&6; }
++
++  if test x$glibcxx_cv_func_powf_use = x"yes"; then
++    for ac_func in powf
++do :
++  ac_fn_c_check_func "$LINENO" "powf" "ac_cv_func_powf"
++if test "x$ac_cv_func_powf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_POWF 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powf declaration" >&5
++$as_echo_n "checking for _powf declaration... " >&6; }
++  if test x${glibcxx_cv_func__powf_use+set} != xset; then
++    if ${glibcxx_cv_func__powf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _powf(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__powf_use=yes
++else
++  glibcxx_cv_func__powf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powf_use" >&5
++$as_echo "$glibcxx_cv_func__powf_use" >&6; }
++
++    if test x$glibcxx_cv_func__powf_use = x"yes"; then
++      for ac_func in _powf
++do :
++  ac_fn_c_check_func "$LINENO" "_powf" "ac_cv_func__powf"
++if test "x$ac_cv_func__powf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__POWF 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtf declaration" >&5
++$as_echo_n "checking for sqrtf declaration... " >&6; }
++  if test x${glibcxx_cv_func_sqrtf_use+set} != xset; then
++    if ${glibcxx_cv_func_sqrtf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ sqrtf(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_sqrtf_use=yes
++else
++  glibcxx_cv_func_sqrtf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtf_use" >&5
++$as_echo "$glibcxx_cv_func_sqrtf_use" >&6; }
++
++  if test x$glibcxx_cv_func_sqrtf_use = x"yes"; then
++    for ac_func in sqrtf
++do :
++  ac_fn_c_check_func "$LINENO" "sqrtf" "ac_cv_func_sqrtf"
++if test "x$ac_cv_func_sqrtf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_SQRTF 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtf declaration" >&5
++$as_echo_n "checking for _sqrtf declaration... " >&6; }
++  if test x${glibcxx_cv_func__sqrtf_use+set} != xset; then
++    if ${glibcxx_cv_func__sqrtf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _sqrtf(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__sqrtf_use=yes
++else
++  glibcxx_cv_func__sqrtf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtf_use" >&5
++$as_echo "$glibcxx_cv_func__sqrtf_use" >&6; }
++
++    if test x$glibcxx_cv_func__sqrtf_use = x"yes"; then
++      for ac_func in _sqrtf
++do :
++  ac_fn_c_check_func "$LINENO" "_sqrtf" "ac_cv_func__sqrtf"
++if test "x$ac_cv_func__sqrtf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__SQRTF 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosf declaration" >&5
++$as_echo_n "checking for sincosf declaration... " >&6; }
++  if test x${glibcxx_cv_func_sincosf_use+set} != xset; then
++    if ${glibcxx_cv_func_sincosf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ sincosf(0, 0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_sincosf_use=yes
++else
++  glibcxx_cv_func_sincosf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosf_use" >&5
++$as_echo "$glibcxx_cv_func_sincosf_use" >&6; }
++
++  if test x$glibcxx_cv_func_sincosf_use = x"yes"; then
++    for ac_func in sincosf
++do :
++  ac_fn_c_check_func "$LINENO" "sincosf" "ac_cv_func_sincosf"
++if test "x$ac_cv_func_sincosf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_SINCOSF 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosf declaration" >&5
++$as_echo_n "checking for _sincosf declaration... " >&6; }
++  if test x${glibcxx_cv_func__sincosf_use+set} != xset; then
++    if ${glibcxx_cv_func__sincosf_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _sincosf(0, 0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__sincosf_use=yes
++else
++  glibcxx_cv_func__sincosf_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosf_use" >&5
++$as_echo "$glibcxx_cv_func__sincosf_use" >&6; }
++
++    if test x$glibcxx_cv_func__sincosf_use = x"yes"; then
++      for ac_func in _sincosf
++do :
++  ac_fn_c_check_func "$LINENO" "_sincosf" "ac_cv_func__sincosf"
++if test "x$ac_cv_func__sincosf" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__SINCOSF 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitef declaration" >&5
++$as_echo_n "checking for finitef declaration... " >&6; }
++  if test x${glibcxx_cv_func_finitef_use+set} != xset; then
++    if ${glibcxx_cv_func_finitef_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ finitef(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_finitef_use=yes
++else
++  glibcxx_cv_func_finitef_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitef_use" >&5
++$as_echo "$glibcxx_cv_func_finitef_use" >&6; }
++
++  if test x$glibcxx_cv_func_finitef_use = x"yes"; then
++    for ac_func in finitef
++do :
++  ac_fn_c_check_func "$LINENO" "finitef" "ac_cv_func_finitef"
++if test "x$ac_cv_func_finitef" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_FINITEF 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitef declaration" >&5
++$as_echo_n "checking for _finitef declaration... " >&6; }
++  if test x${glibcxx_cv_func__finitef_use+set} != xset; then
++    if ${glibcxx_cv_func__finitef_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _finitef(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__finitef_use=yes
++else
++  glibcxx_cv_func__finitef_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitef_use" >&5
++$as_echo "$glibcxx_cv_func__finitef_use" >&6; }
++
++    if test x$glibcxx_cv_func__finitef_use = x"yes"; then
++      for ac_func in _finitef
++do :
++  ac_fn_c_check_func "$LINENO" "_finitef" "ac_cv_func__finitef"
++if test "x$ac_cv_func__finitef" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__FINITEF 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double trig functions" >&5
++$as_echo_n "checking for long double trig functions... " >&6; }
++  if ${glibcxx_cv_func_long_double_trig_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++    ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++acosl (0); asinl (0); atanl (0); cosl (0); sinl (0); tanl (0); coshl (0); sinhl (0); tanhl (0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_long_double_trig_use=yes
++else
++  glibcxx_cv_func_long_double_trig_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++    ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++fi
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_trig_use" >&5
++$as_echo "$glibcxx_cv_func_long_double_trig_use" >&6; }
++  if test x$glibcxx_cv_func_long_double_trig_use = x"yes"; then
++    for ac_func in acosl asinl atanl cosl sinl tanl coshl sinhl tanhl
++do :
++  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
++ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
++if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
++  cat >>confdefs.h <<_ACEOF
++#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
++_ACEOF
++
++fi
++done
++
++  else
++    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double trig functions" >&5
++$as_echo_n "checking for _long double trig functions... " >&6; }
++    if ${glibcxx_cv_func__long_double_trig_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++_acosl (0); _asinl (0); _atanl (0); _cosl (0); _sinl (0); _tanl (0); _coshl (0); _sinhl (0); _tanhl (0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__long_double_trig_use=yes
++else
++  glibcxx_cv_func__long_double_trig_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++fi
++
++    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_trig_use" >&5
++$as_echo "$glibcxx_cv_func__long_double_trig_use" >&6; }
++    if test x$glibcxx_cv_func__long_double_trig_use = x"yes"; then
++      for ac_func in _acosl _asinl _atanl _cosl _sinl _tanl _coshl _sinhl _tanhl
++do :
++  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
++ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
++if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
++  cat >>confdefs.h <<_ACEOF
++#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double round functions" >&5
++$as_echo_n "checking for long double round functions... " >&6; }
++  if ${glibcxx_cv_func_long_double_round_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++    ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ceill (0); floorl (0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_long_double_round_use=yes
++else
++  glibcxx_cv_func_long_double_round_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++    ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++fi
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_long_double_round_use" >&5
++$as_echo "$glibcxx_cv_func_long_double_round_use" >&6; }
++  if test x$glibcxx_cv_func_long_double_round_use = x"yes"; then
++    for ac_func in ceill floorl
++do :
++  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
++ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
++if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
++  cat >>confdefs.h <<_ACEOF
++#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
++_ACEOF
++
++fi
++done
++
++  else
++    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _long double round functions" >&5
++$as_echo_n "checking for _long double round functions... " >&6; }
++    if ${glibcxx_cv_func__long_double_round_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++_ceill (0); _floorl (0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__long_double_round_use=yes
++else
++  glibcxx_cv_func__long_double_round_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++fi
++
++    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__long_double_round_use" >&5
++$as_echo "$glibcxx_cv_func__long_double_round_use" >&6; }
++    if test x$glibcxx_cv_func__long_double_round_use = x"yes"; then
++      for ac_func in _ceill _floorl
++do :
++  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
++ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
++if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
++  cat >>confdefs.h <<_ACEOF
++#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnanl declaration" >&5
++$as_echo_n "checking for isnanl declaration... " >&6; }
++  if test x${glibcxx_cv_func_isnanl_use+set} != xset; then
++    if ${glibcxx_cv_func_isnanl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ isnanl(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_isnanl_use=yes
++else
++  glibcxx_cv_func_isnanl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isnanl_use" >&5
++$as_echo "$glibcxx_cv_func_isnanl_use" >&6; }
++
++  if test x$glibcxx_cv_func_isnanl_use = x"yes"; then
++    for ac_func in isnanl
++do :
++  ac_fn_c_check_func "$LINENO" "isnanl" "ac_cv_func_isnanl"
++if test "x$ac_cv_func_isnanl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_ISNANL 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isnanl declaration" >&5
++$as_echo_n "checking for _isnanl declaration... " >&6; }
++  if test x${glibcxx_cv_func__isnanl_use+set} != xset; then
++    if ${glibcxx_cv_func__isnanl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _isnanl(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__isnanl_use=yes
++else
++  glibcxx_cv_func__isnanl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isnanl_use" >&5
++$as_echo "$glibcxx_cv_func__isnanl_use" >&6; }
++
++    if test x$glibcxx_cv_func__isnanl_use = x"yes"; then
++      for ac_func in _isnanl
++do :
++  ac_fn_c_check_func "$LINENO" "_isnanl" "ac_cv_func__isnanl"
++if test "x$ac_cv_func__isnanl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__ISNANL 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinfl declaration" >&5
++$as_echo_n "checking for isinfl declaration... " >&6; }
++  if test x${glibcxx_cv_func_isinfl_use+set} != xset; then
++    if ${glibcxx_cv_func_isinfl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ isinfl(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_isinfl_use=yes
++else
++  glibcxx_cv_func_isinfl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_isinfl_use" >&5
++$as_echo "$glibcxx_cv_func_isinfl_use" >&6; }
++
++  if test x$glibcxx_cv_func_isinfl_use = x"yes"; then
++    for ac_func in isinfl
++do :
++  ac_fn_c_check_func "$LINENO" "isinfl" "ac_cv_func_isinfl"
++if test "x$ac_cv_func_isinfl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_ISINFL 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _isinfl declaration" >&5
++$as_echo_n "checking for _isinfl declaration... " >&6; }
++  if test x${glibcxx_cv_func__isinfl_use+set} != xset; then
++    if ${glibcxx_cv_func__isinfl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _isinfl(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__isinfl_use=yes
++else
++  glibcxx_cv_func__isinfl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__isinfl_use" >&5
++$as_echo "$glibcxx_cv_func__isinfl_use" >&6; }
++
++    if test x$glibcxx_cv_func__isinfl_use = x"yes"; then
++      for ac_func in _isinfl
++do :
++  ac_fn_c_check_func "$LINENO" "_isinfl" "ac_cv_func__isinfl"
++if test "x$ac_cv_func__isinfl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__ISINFL 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for atan2l declaration" >&5
++$as_echo_n "checking for atan2l declaration... " >&6; }
++  if test x${glibcxx_cv_func_atan2l_use+set} != xset; then
++    if ${glibcxx_cv_func_atan2l_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ atan2l(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_atan2l_use=yes
++else
++  glibcxx_cv_func_atan2l_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_atan2l_use" >&5
++$as_echo "$glibcxx_cv_func_atan2l_use" >&6; }
++
++  if test x$glibcxx_cv_func_atan2l_use = x"yes"; then
++    for ac_func in atan2l
++do :
++  ac_fn_c_check_func "$LINENO" "atan2l" "ac_cv_func_atan2l"
++if test "x$ac_cv_func_atan2l" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_ATAN2L 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _atan2l declaration" >&5
++$as_echo_n "checking for _atan2l declaration... " >&6; }
++  if test x${glibcxx_cv_func__atan2l_use+set} != xset; then
++    if ${glibcxx_cv_func__atan2l_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _atan2l(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__atan2l_use=yes
++else
++  glibcxx_cv_func__atan2l_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__atan2l_use" >&5
++$as_echo "$glibcxx_cv_func__atan2l_use" >&6; }
++
++    if test x$glibcxx_cv_func__atan2l_use = x"yes"; then
++      for ac_func in _atan2l
++do :
++  ac_fn_c_check_func "$LINENO" "_atan2l" "ac_cv_func__atan2l"
++if test "x$ac_cv_func__atan2l" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__ATAN2L 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for expl declaration" >&5
++$as_echo_n "checking for expl declaration... " >&6; }
++  if test x${glibcxx_cv_func_expl_use+set} != xset; then
++    if ${glibcxx_cv_func_expl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ expl(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_expl_use=yes
++else
++  glibcxx_cv_func_expl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_expl_use" >&5
++$as_echo "$glibcxx_cv_func_expl_use" >&6; }
++
++  if test x$glibcxx_cv_func_expl_use = x"yes"; then
++    for ac_func in expl
++do :
++  ac_fn_c_check_func "$LINENO" "expl" "ac_cv_func_expl"
++if test "x$ac_cv_func_expl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_EXPL 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _expl declaration" >&5
++$as_echo_n "checking for _expl declaration... " >&6; }
++  if test x${glibcxx_cv_func__expl_use+set} != xset; then
++    if ${glibcxx_cv_func__expl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _expl(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__expl_use=yes
++else
++  glibcxx_cv_func__expl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__expl_use" >&5
++$as_echo "$glibcxx_cv_func__expl_use" >&6; }
++
++    if test x$glibcxx_cv_func__expl_use = x"yes"; then
++      for ac_func in _expl
++do :
++  ac_fn_c_check_func "$LINENO" "_expl" "ac_cv_func__expl"
++if test "x$ac_cv_func__expl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__EXPL 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fabsl declaration" >&5
++$as_echo_n "checking for fabsl declaration... " >&6; }
++  if test x${glibcxx_cv_func_fabsl_use+set} != xset; then
++    if ${glibcxx_cv_func_fabsl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ fabsl(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_fabsl_use=yes
++else
++  glibcxx_cv_func_fabsl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fabsl_use" >&5
++$as_echo "$glibcxx_cv_func_fabsl_use" >&6; }
++
++  if test x$glibcxx_cv_func_fabsl_use = x"yes"; then
++    for ac_func in fabsl
++do :
++  ac_fn_c_check_func "$LINENO" "fabsl" "ac_cv_func_fabsl"
++if test "x$ac_cv_func_fabsl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_FABSL 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fabsl declaration" >&5
++$as_echo_n "checking for _fabsl declaration... " >&6; }
++  if test x${glibcxx_cv_func__fabsl_use+set} != xset; then
++    if ${glibcxx_cv_func__fabsl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _fabsl(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__fabsl_use=yes
++else
++  glibcxx_cv_func__fabsl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fabsl_use" >&5
++$as_echo "$glibcxx_cv_func__fabsl_use" >&6; }
++
++    if test x$glibcxx_cv_func__fabsl_use = x"yes"; then
++      for ac_func in _fabsl
++do :
++  ac_fn_c_check_func "$LINENO" "_fabsl" "ac_cv_func__fabsl"
++if test "x$ac_cv_func__fabsl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__FABSL 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fmodl declaration" >&5
++$as_echo_n "checking for fmodl declaration... " >&6; }
++  if test x${glibcxx_cv_func_fmodl_use+set} != xset; then
++    if ${glibcxx_cv_func_fmodl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ fmodl(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_fmodl_use=yes
++else
++  glibcxx_cv_func_fmodl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_fmodl_use" >&5
++$as_echo "$glibcxx_cv_func_fmodl_use" >&6; }
++
++  if test x$glibcxx_cv_func_fmodl_use = x"yes"; then
++    for ac_func in fmodl
++do :
++  ac_fn_c_check_func "$LINENO" "fmodl" "ac_cv_func_fmodl"
++if test "x$ac_cv_func_fmodl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_FMODL 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _fmodl declaration" >&5
++$as_echo_n "checking for _fmodl declaration... " >&6; }
++  if test x${glibcxx_cv_func__fmodl_use+set} != xset; then
++    if ${glibcxx_cv_func__fmodl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _fmodl(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__fmodl_use=yes
++else
++  glibcxx_cv_func__fmodl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__fmodl_use" >&5
++$as_echo "$glibcxx_cv_func__fmodl_use" >&6; }
++
++    if test x$glibcxx_cv_func__fmodl_use = x"yes"; then
++      for ac_func in _fmodl
++do :
++  ac_fn_c_check_func "$LINENO" "_fmodl" "ac_cv_func__fmodl"
++if test "x$ac_cv_func__fmodl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__FMODL 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for frexpl declaration" >&5
++$as_echo_n "checking for frexpl declaration... " >&6; }
++  if test x${glibcxx_cv_func_frexpl_use+set} != xset; then
++    if ${glibcxx_cv_func_frexpl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ frexpl(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_frexpl_use=yes
++else
++  glibcxx_cv_func_frexpl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_frexpl_use" >&5
++$as_echo "$glibcxx_cv_func_frexpl_use" >&6; }
++
++  if test x$glibcxx_cv_func_frexpl_use = x"yes"; then
++    for ac_func in frexpl
++do :
++  ac_fn_c_check_func "$LINENO" "frexpl" "ac_cv_func_frexpl"
++if test "x$ac_cv_func_frexpl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_FREXPL 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _frexpl declaration" >&5
++$as_echo_n "checking for _frexpl declaration... " >&6; }
++  if test x${glibcxx_cv_func__frexpl_use+set} != xset; then
++    if ${glibcxx_cv_func__frexpl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _frexpl(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__frexpl_use=yes
++else
++  glibcxx_cv_func__frexpl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__frexpl_use" >&5
++$as_echo "$glibcxx_cv_func__frexpl_use" >&6; }
++
++    if test x$glibcxx_cv_func__frexpl_use = x"yes"; then
++      for ac_func in _frexpl
++do :
++  ac_fn_c_check_func "$LINENO" "_frexpl" "ac_cv_func__frexpl"
++if test "x$ac_cv_func__frexpl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__FREXPL 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hypotl declaration" >&5
++$as_echo_n "checking for hypotl declaration... " >&6; }
++  if test x${glibcxx_cv_func_hypotl_use+set} != xset; then
++    if ${glibcxx_cv_func_hypotl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ hypotl(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_hypotl_use=yes
++else
++  glibcxx_cv_func_hypotl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_hypotl_use" >&5
++$as_echo "$glibcxx_cv_func_hypotl_use" >&6; }
++
++  if test x$glibcxx_cv_func_hypotl_use = x"yes"; then
++    for ac_func in hypotl
++do :
++  ac_fn_c_check_func "$LINENO" "hypotl" "ac_cv_func_hypotl"
++if test "x$ac_cv_func_hypotl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_HYPOTL 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _hypotl declaration" >&5
++$as_echo_n "checking for _hypotl declaration... " >&6; }
++  if test x${glibcxx_cv_func__hypotl_use+set} != xset; then
++    if ${glibcxx_cv_func__hypotl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _hypotl(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__hypotl_use=yes
++else
++  glibcxx_cv_func__hypotl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__hypotl_use" >&5
++$as_echo "$glibcxx_cv_func__hypotl_use" >&6; }
++
++    if test x$glibcxx_cv_func__hypotl_use = x"yes"; then
++      for ac_func in _hypotl
++do :
++  ac_fn_c_check_func "$LINENO" "_hypotl" "ac_cv_func__hypotl"
++if test "x$ac_cv_func__hypotl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__HYPOTL 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldexpl declaration" >&5
++$as_echo_n "checking for ldexpl declaration... " >&6; }
++  if test x${glibcxx_cv_func_ldexpl_use+set} != xset; then
++    if ${glibcxx_cv_func_ldexpl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ ldexpl(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_ldexpl_use=yes
++else
++  glibcxx_cv_func_ldexpl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_ldexpl_use" >&5
++$as_echo "$glibcxx_cv_func_ldexpl_use" >&6; }
++
++  if test x$glibcxx_cv_func_ldexpl_use = x"yes"; then
++    for ac_func in ldexpl
++do :
++  ac_fn_c_check_func "$LINENO" "ldexpl" "ac_cv_func_ldexpl"
++if test "x$ac_cv_func_ldexpl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_LDEXPL 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ldexpl declaration" >&5
++$as_echo_n "checking for _ldexpl declaration... " >&6; }
++  if test x${glibcxx_cv_func__ldexpl_use+set} != xset; then
++    if ${glibcxx_cv_func__ldexpl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _ldexpl(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__ldexpl_use=yes
++else
++  glibcxx_cv_func__ldexpl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__ldexpl_use" >&5
++$as_echo "$glibcxx_cv_func__ldexpl_use" >&6; }
++
++    if test x$glibcxx_cv_func__ldexpl_use = x"yes"; then
++      for ac_func in _ldexpl
++do :
++  ac_fn_c_check_func "$LINENO" "_ldexpl" "ac_cv_func__ldexpl"
++if test "x$ac_cv_func__ldexpl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__LDEXPL 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for logl declaration" >&5
++$as_echo_n "checking for logl declaration... " >&6; }
++  if test x${glibcxx_cv_func_logl_use+set} != xset; then
++    if ${glibcxx_cv_func_logl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ logl(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_logl_use=yes
++else
++  glibcxx_cv_func_logl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_logl_use" >&5
++$as_echo "$glibcxx_cv_func_logl_use" >&6; }
++
++  if test x$glibcxx_cv_func_logl_use = x"yes"; then
++    for ac_func in logl
++do :
++  ac_fn_c_check_func "$LINENO" "logl" "ac_cv_func_logl"
++if test "x$ac_cv_func_logl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_LOGL 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _logl declaration" >&5
++$as_echo_n "checking for _logl declaration... " >&6; }
++  if test x${glibcxx_cv_func__logl_use+set} != xset; then
++    if ${glibcxx_cv_func__logl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _logl(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__logl_use=yes
++else
++  glibcxx_cv_func__logl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__logl_use" >&5
++$as_echo "$glibcxx_cv_func__logl_use" >&6; }
++
++    if test x$glibcxx_cv_func__logl_use = x"yes"; then
++      for ac_func in _logl
++do :
++  ac_fn_c_check_func "$LINENO" "_logl" "ac_cv_func__logl"
++if test "x$ac_cv_func__logl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__LOGL 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for log10l declaration" >&5
++$as_echo_n "checking for log10l declaration... " >&6; }
++  if test x${glibcxx_cv_func_log10l_use+set} != xset; then
++    if ${glibcxx_cv_func_log10l_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ log10l(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_log10l_use=yes
++else
++  glibcxx_cv_func_log10l_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_log10l_use" >&5
++$as_echo "$glibcxx_cv_func_log10l_use" >&6; }
++
++  if test x$glibcxx_cv_func_log10l_use = x"yes"; then
++    for ac_func in log10l
++do :
++  ac_fn_c_check_func "$LINENO" "log10l" "ac_cv_func_log10l"
++if test "x$ac_cv_func_log10l" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_LOG10L 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _log10l declaration" >&5
++$as_echo_n "checking for _log10l declaration... " >&6; }
++  if test x${glibcxx_cv_func__log10l_use+set} != xset; then
++    if ${glibcxx_cv_func__log10l_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _log10l(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__log10l_use=yes
++else
++  glibcxx_cv_func__log10l_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__log10l_use" >&5
++$as_echo "$glibcxx_cv_func__log10l_use" >&6; }
++
++    if test x$glibcxx_cv_func__log10l_use = x"yes"; then
++      for ac_func in _log10l
++do :
++  ac_fn_c_check_func "$LINENO" "_log10l" "ac_cv_func__log10l"
++if test "x$ac_cv_func__log10l" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__LOG10L 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for modfl declaration" >&5
++$as_echo_n "checking for modfl declaration... " >&6; }
++  if test x${glibcxx_cv_func_modfl_use+set} != xset; then
++    if ${glibcxx_cv_func_modfl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ modfl(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_modfl_use=yes
++else
++  glibcxx_cv_func_modfl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_modfl_use" >&5
++$as_echo "$glibcxx_cv_func_modfl_use" >&6; }
++
++  if test x$glibcxx_cv_func_modfl_use = x"yes"; then
++    for ac_func in modfl
++do :
++  ac_fn_c_check_func "$LINENO" "modfl" "ac_cv_func_modfl"
++if test "x$ac_cv_func_modfl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_MODFL 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _modfl declaration" >&5
++$as_echo_n "checking for _modfl declaration... " >&6; }
++  if test x${glibcxx_cv_func__modfl_use+set} != xset; then
++    if ${glibcxx_cv_func__modfl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _modfl(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__modfl_use=yes
++else
++  glibcxx_cv_func__modfl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__modfl_use" >&5
++$as_echo "$glibcxx_cv_func__modfl_use" >&6; }
++
++    if test x$glibcxx_cv_func__modfl_use = x"yes"; then
++      for ac_func in _modfl
++do :
++  ac_fn_c_check_func "$LINENO" "_modfl" "ac_cv_func__modfl"
++if test "x$ac_cv_func__modfl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__MODFL 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for powl declaration" >&5
++$as_echo_n "checking for powl declaration... " >&6; }
++  if test x${glibcxx_cv_func_powl_use+set} != xset; then
++    if ${glibcxx_cv_func_powl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ powl(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_powl_use=yes
++else
++  glibcxx_cv_func_powl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_powl_use" >&5
++$as_echo "$glibcxx_cv_func_powl_use" >&6; }
++
++  if test x$glibcxx_cv_func_powl_use = x"yes"; then
++    for ac_func in powl
++do :
++  ac_fn_c_check_func "$LINENO" "powl" "ac_cv_func_powl"
++if test "x$ac_cv_func_powl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_POWL 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _powl declaration" >&5
++$as_echo_n "checking for _powl declaration... " >&6; }
++  if test x${glibcxx_cv_func__powl_use+set} != xset; then
++    if ${glibcxx_cv_func__powl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _powl(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__powl_use=yes
++else
++  glibcxx_cv_func__powl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__powl_use" >&5
++$as_echo "$glibcxx_cv_func__powl_use" >&6; }
++
++    if test x$glibcxx_cv_func__powl_use = x"yes"; then
++      for ac_func in _powl
++do :
++  ac_fn_c_check_func "$LINENO" "_powl" "ac_cv_func__powl"
++if test "x$ac_cv_func__powl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__POWL 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sqrtl declaration" >&5
++$as_echo_n "checking for sqrtl declaration... " >&6; }
++  if test x${glibcxx_cv_func_sqrtl_use+set} != xset; then
++    if ${glibcxx_cv_func_sqrtl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ sqrtl(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_sqrtl_use=yes
++else
++  glibcxx_cv_func_sqrtl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sqrtl_use" >&5
++$as_echo "$glibcxx_cv_func_sqrtl_use" >&6; }
++
++  if test x$glibcxx_cv_func_sqrtl_use = x"yes"; then
++    for ac_func in sqrtl
++do :
++  ac_fn_c_check_func "$LINENO" "sqrtl" "ac_cv_func_sqrtl"
++if test "x$ac_cv_func_sqrtl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_SQRTL 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sqrtl declaration" >&5
++$as_echo_n "checking for _sqrtl declaration... " >&6; }
++  if test x${glibcxx_cv_func__sqrtl_use+set} != xset; then
++    if ${glibcxx_cv_func__sqrtl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _sqrtl(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__sqrtl_use=yes
++else
++  glibcxx_cv_func__sqrtl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sqrtl_use" >&5
++$as_echo "$glibcxx_cv_func__sqrtl_use" >&6; }
++
++    if test x$glibcxx_cv_func__sqrtl_use = x"yes"; then
++      for ac_func in _sqrtl
++do :
++  ac_fn_c_check_func "$LINENO" "_sqrtl" "ac_cv_func__sqrtl"
++if test "x$ac_cv_func__sqrtl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__SQRTL 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sincosl declaration" >&5
++$as_echo_n "checking for sincosl declaration... " >&6; }
++  if test x${glibcxx_cv_func_sincosl_use+set} != xset; then
++    if ${glibcxx_cv_func_sincosl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ sincosl(0, 0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_sincosl_use=yes
++else
++  glibcxx_cv_func_sincosl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_sincosl_use" >&5
++$as_echo "$glibcxx_cv_func_sincosl_use" >&6; }
++
++  if test x$glibcxx_cv_func_sincosl_use = x"yes"; then
++    for ac_func in sincosl
++do :
++  ac_fn_c_check_func "$LINENO" "sincosl" "ac_cv_func_sincosl"
++if test "x$ac_cv_func_sincosl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_SINCOSL 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _sincosl declaration" >&5
++$as_echo_n "checking for _sincosl declaration... " >&6; }
++  if test x${glibcxx_cv_func__sincosl_use+set} != xset; then
++    if ${glibcxx_cv_func__sincosl_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++int
++main ()
++{
++ _sincosl(0, 0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__sincosl_use=yes
++else
++  glibcxx_cv_func__sincosl_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__sincosl_use" >&5
++$as_echo "$glibcxx_cv_func__sincosl_use" >&6; }
++
++    if test x$glibcxx_cv_func__sincosl_use = x"yes"; then
++      for ac_func in _sincosl
++do :
++  ac_fn_c_check_func "$LINENO" "_sincosl" "ac_cv_func__sincosl"
++if test "x$ac_cv_func__sincosl" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__SINCOSL 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for finitel declaration" >&5
++$as_echo_n "checking for finitel declaration... " >&6; }
++  if test x${glibcxx_cv_func_finitel_use+set} != xset; then
++    if ${glibcxx_cv_func_finitel_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ finitel(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_finitel_use=yes
++else
++  glibcxx_cv_func_finitel_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_finitel_use" >&5
++$as_echo "$glibcxx_cv_func_finitel_use" >&6; }
++
++  if test x$glibcxx_cv_func_finitel_use = x"yes"; then
++    for ac_func in finitel
++do :
++  ac_fn_c_check_func "$LINENO" "finitel" "ac_cv_func_finitel"
++if test "x$ac_cv_func_finitel" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_FINITEL 1
++_ACEOF
++
++fi
++done
++
++  else
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _finitel declaration" >&5
++$as_echo_n "checking for _finitel declaration... " >&6; }
++  if test x${glibcxx_cv_func__finitel_use+set} != xset; then
++    if ${glibcxx_cv_func__finitel_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <math.h>
++		      #ifdef HAVE_IEEEFP_H
++		      #include <ieeefp.h>
++		      #endif
++
++int
++main ()
++{
++ _finitel(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func__finitel_use=yes
++else
++  glibcxx_cv_func__finitel_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func__finitel_use" >&5
++$as_echo "$glibcxx_cv_func__finitel_use" >&6; }
++
++    if test x$glibcxx_cv_func__finitel_use = x"yes"; then
++      for ac_func in _finitel
++do :
++  ac_fn_c_check_func "$LINENO" "_finitel" "ac_cv_func__finitel"
++if test "x$ac_cv_func__finitel" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE__FINITEL 1
++_ACEOF
++
++fi
++done
++
++    fi
++  fi
++
++
++
++
++  LIBS="$ac_save_LIBS"
++  CXXFLAGS="$ac_save_CXXFLAGS"
++
++
++  ac_test_CXXFLAGS="${CXXFLAGS+set}"
++  ac_save_CXXFLAGS="$CXXFLAGS"
++  CXXFLAGS='-fno-builtin -D_GNU_SOURCE'
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for at_quick_exit declaration" >&5
++$as_echo_n "checking for at_quick_exit declaration... " >&6; }
++  if test x${glibcxx_cv_func_at_quick_exit_use+set} != xset; then
++    if ${glibcxx_cv_func_at_quick_exit_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <stdlib.h>
++int
++main ()
++{
++ at_quick_exit(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_at_quick_exit_use=yes
++else
++  glibcxx_cv_func_at_quick_exit_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_at_quick_exit_use" >&5
++$as_echo "$glibcxx_cv_func_at_quick_exit_use" >&6; }
++  if test x$glibcxx_cv_func_at_quick_exit_use = x"yes"; then
++    for ac_func in at_quick_exit
++do :
++  ac_fn_c_check_func "$LINENO" "at_quick_exit" "ac_cv_func_at_quick_exit"
++if test "x$ac_cv_func_at_quick_exit" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_AT_QUICK_EXIT 1
++_ACEOF
++
++fi
++done
++
++  fi
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for quick_exit declaration" >&5
++$as_echo_n "checking for quick_exit declaration... " >&6; }
++  if test x${glibcxx_cv_func_quick_exit_use+set} != xset; then
++    if ${glibcxx_cv_func_quick_exit_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <stdlib.h>
++int
++main ()
++{
++ quick_exit(0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_quick_exit_use=yes
++else
++  glibcxx_cv_func_quick_exit_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_quick_exit_use" >&5
++$as_echo "$glibcxx_cv_func_quick_exit_use" >&6; }
++  if test x$glibcxx_cv_func_quick_exit_use = x"yes"; then
++    for ac_func in quick_exit
++do :
++  ac_fn_c_check_func "$LINENO" "quick_exit" "ac_cv_func_quick_exit"
++if test "x$ac_cv_func_quick_exit" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_QUICK_EXIT 1
++_ACEOF
++
++fi
++done
++
++  fi
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtold declaration" >&5
++$as_echo_n "checking for strtold declaration... " >&6; }
++  if test x${glibcxx_cv_func_strtold_use+set} != xset; then
++    if ${glibcxx_cv_func_strtold_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <stdlib.h>
++int
++main ()
++{
++ strtold(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_strtold_use=yes
++else
++  glibcxx_cv_func_strtold_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtold_use" >&5
++$as_echo "$glibcxx_cv_func_strtold_use" >&6; }
++  if test x$glibcxx_cv_func_strtold_use = x"yes"; then
++    for ac_func in strtold
++do :
++  ac_fn_c_check_func "$LINENO" "strtold" "ac_cv_func_strtold"
++if test "x$ac_cv_func_strtold" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_STRTOLD 1
++_ACEOF
++
++fi
++done
++
++  fi
++
++
++
++
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for strtof declaration" >&5
++$as_echo_n "checking for strtof declaration... " >&6; }
++  if test x${glibcxx_cv_func_strtof_use+set} != xset; then
++    if ${glibcxx_cv_func_strtof_use+:} false; then :
++  $as_echo_n "(cached) " >&6
++else
++
++
++      ac_ext=cpp
++ac_cpp='$CXXCPP $CPPFLAGS'
++ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
++
++      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h.  */
++#include <stdlib.h>
++int
++main ()
++{
++ strtof(0, 0);
++  ;
++  return 0;
++}
++_ACEOF
++if ac_fn_cxx_try_compile "$LINENO"; then :
++  glibcxx_cv_func_strtof_use=yes
++else
++  glibcxx_cv_func_strtof_use=no
++fi
++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
++      ac_ext=c
++ac_cpp='$CPP $CPPFLAGS'
++ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
++ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
++ac_compiler_gnu=$ac_cv_c_compiler_gnu
++
++
++fi
++
++  fi
++  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_func_strtof_use" >&5
++$as_echo "$glibcxx_cv_func_strtof_use" >&6; }
++  if test x$glibcxx_cv_func_strtof_use = x"yes"; then
++    for ac_func in strtof
++do :
++  ac_fn_c_check_func "$LINENO" "strtof" "ac_cv_func_strtof"
++if test "x$ac_cv_func_strtof" = xyes; then :
++  cat >>confdefs.h <<_ACEOF
++#define HAVE_STRTOF 1
++_ACEOF
++
++fi
++done
++
++  fi
++
++
++
++
++  CXXFLAGS="$ac_save_CXXFLAGS"
++
++    ;;
+ 
+   *-fuchsia*)
+     SECTION_FLAGS='-ffunction-sections -fdata-sections'
+diff --git a/libstdc++-v3/crossconfig.m4 b/libstdc++-v3/crossconfig.m4
+index b3269cb88e0..828e1e1f317 100644
+--- a/libstdc++-v3/crossconfig.m4
++++ b/libstdc++-v3/crossconfig.m4
+@@ -135,6 +135,12 @@ case "${host}" in
+     AC_CHECK_FUNCS(sockatmark)
+     AC_CHECK_FUNCS(uselocale)
+     ;;
++  *-fennix*)
++    GLIBCXX_CHECK_COMPILER_FEATURES
++    GLIBCXX_CHECK_LINKER_FEATURES
++    GLIBCXX_CHECK_MATH_SUPPORT
++    GLIBCXX_CHECK_STDLIB_SUPPORT
++    ;;
+ 
+   *-fuchsia*)
+     SECTION_FLAGS='-ffunction-sections -fdata-sections'