Update include directory

libc/include/errno.h

@@ -0,0 +1,4 @@
+#ifndef _ERRNO_H
+#define _ERRNO_H
+
+#endif

libc/include/stdio.h

@@ -0,0 +1,37 @@
+#ifndef _STDIO_H
+#define _STDIO_H
+
+#include <stdarg.h>
+#include <stddef.h>
+
+#define SEEK_SET 0
+
+typedef struct
+{
+    int unused;
+} FILE;
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    extern FILE *stderr;
+#define stderr stderr
+
+    int fclose(FILE *);
+    int fflush(FILE *);
+    FILE *fopen(const char *, const char *);
+    int fprintf(FILE *, const char *, ...);
+    size_t fread(void *, size_t, size_t, FILE *);
+    int fseek(FILE *, long, int);
+    long ftell(FILE *);
+    size_t fwrite(const void *, size_t, size_t, FILE *);
+    void setbuf(FILE *, char *);
+    int vfprintf(FILE *, const char *, va_list);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

libc/include/stdlib.h

@@ -0,0 +1,22 @@
+#ifndef _STDLIB_H
+#define _STDLIB_H
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    void abort(void);
+    int atexit(void (*)(void));
+    int atoi(const char *);
+    void free(void *);
+    char *getenv(const char *);
+    void *malloc(size_t);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

libc/include/string.h

@@ -0,0 +1,20 @@
+#ifndef _STRING_H
+#define _STRING_H
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    void *memcpy(void *, const void *, size_t);
+    void *memset(void *, int, size_t);
+    char *strcpy(char *, const char *);
+    size_t strlen(const char *);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

libc/include/sys/types.h

@@ -0,0 +1,6 @@
+#ifndef _SYS_TYPES_H
+#define _SYS_TYPES_H
+
+typedef int pid_t;
+
+#endif

libc/include/time.h

@@ -0,0 +1,4 @@
+#ifndef _TIME_H
+#define _TIME_H
+
+#endif

libc/include/unistd.h

@@ -0,0 +1,19 @@
+#ifndef _UNISTD_H
+#define _UNISTD_H
+
+#include <sys/types.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    int execv(const char *, char *const[]);
+    int execve(const char *, char *const[], char *const[]);
+    int execvp(const char *, char *const[]);
+    pid_t fork(void);
+
+#ifdef __cplusplus
+}
+#endif
+#endif