diff --git a/include/stdlib/stdlib.h b/include/stdlib/stdlib.h
new file mode 100644
index 0000000..b1ac1bf
--- /dev/null
+++ b/include/stdlib/stdlib.h
@@ -0,0 +1,313 @@
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)stdlib.h	8.5 (Berkeley) 5/19/95
+ * $FreeBSD$
+ */
+
+#ifndef _STDLIB_H_
+#define	_STDLIB_H_
+
+#include <sys/cdefs.h>
+#include <sys/_null.h>
+#include <sys/_types.h>
+
+#if __BSD_VISIBLE
+#ifndef _RUNE_T_DECLARED
+typedef	__rune_t	rune_t;
+#define	_RUNE_T_DECLARED
+#endif
+#endif
+
+#ifndef _SIZE_T_DECLARED
+typedef	__size_t	size_t;
+#define	_SIZE_T_DECLARED
+#endif
+
+typedef struct {
+	int	quot;		/* quotient */
+	int	rem;		/* remainder */
+} div_t;
+
+typedef struct {
+	long	quot;
+	long	rem;
+} ldiv_t;
+
+#define	EXIT_FAILURE	1
+#define	EXIT_SUCCESS	0
+
+#define	RAND_MAX	0x7ffffffd
+
+__BEGIN_DECLS
+#ifdef _XLOCALE_H_
+#include <xlocale/_stdlib.h>
+#endif
+extern int __mb_cur_max;
+extern int ___mb_cur_max(void);
+#define	MB_CUR_MAX	(___mb_cur_max())
+
+_Noreturn void	 abort(void);
+int	 abs(int) __pure2;
+int	 atexit(void (*)(void));
+double	 atof(const char *);
+int	 atoi(const char *);
+long	 atol(const char *);
+void	*bsearch(const void *, const void *, size_t,
+	    size_t, int (*)(const void *, const void *));
+void	*calloc(size_t, size_t) __malloc_like;
+div_t	 div(int, int) __pure2;
+_Noreturn void	 exit(int);
+void	 free(void *);
+char	*getenv(const char *);
+long	 labs(long) __pure2;
+ldiv_t	 ldiv(long, long) __pure2;
+void	*malloc(size_t) __malloc_like;
+int	 mblen(const char *, size_t);
+void	 qsort(void *, size_t, size_t,
+	    int (*)(const void *, const void *));
+int	 rand(void);
+void	*realloc(void *, size_t);
+void	 srand(unsigned);
+double	 strtod(const char *__restrict, char **__restrict);
+float	 strtof(const char *__restrict, char **__restrict);
+long	 strtol(const char *__restrict, char **__restrict, int);
+long double
+	 strtold(const char *__restrict, char **__restrict);
+unsigned long
+	 strtoul(const char *__restrict, char **__restrict, int);
+int	 system(const char *);
+
+/*
+ * Functions added in C99 which we make conditionally available in the
+ * BSD^C89 namespace if the compiler supports `long long'.
+ * The #if test is more complicated than it ought to be because
+ * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long'
+ * is not supported in the compilation environment (which therefore means
+ * that it can't really be ISO C99).
+ *
+ * (The only other extension made by C99 in thie header is _Exit().)
+ */
+#if __ISO_C_VISIBLE >= 1999
+#ifdef __LONG_LONG_SUPPORTED
+/* LONGLONG */
+typedef struct {
+	long long quot;
+	long long rem;
+} lldiv_t;
+
+/* LONGLONG */
+long long
+	 atoll(const char *);
+/* LONGLONG */
+long long
+	 llabs(long long) __pure2;
+/* LONGLONG */
+lldiv_t	 lldiv(long long, long long) __pure2;
+/* LONGLONG */
+long long
+	 strtoll(const char *__restrict, char **__restrict, int);
+/* LONGLONG */
+unsigned long long
+	 strtoull(const char *__restrict, char **__restrict, int);
+#endif /* __LONG_LONG_SUPPORTED */
+
+_Noreturn void	 _Exit(int);
+#endif /* __ISO_C_VISIBLE >= 1999 */
+
+/*
+ * If we're in a mode greater than C99, expose C11 functions.
+ */
+#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L
+void *aligned_alloc(size_t, size_t) __malloc_like;
+int	at_quick_exit(void (*)(void));
+_Noreturn void
+	quick_exit(int);
+#endif /* __ISO_C_VISIBLE >= 2011 */
+/*
+ * Extensions made by POSIX relative to C.
+ */
+#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE
+char	*realpath(const char *__restrict, char *__restrict);
+#endif
+#if __POSIX_VISIBLE >= 199506
+int	 rand_r(unsigned *);			/* (TSF) */
+#endif
+#if __POSIX_VISIBLE >= 200112
+int	 posix_memalign(void **, size_t, size_t); /* (ADV) */
+int	 setenv(const char *, const char *, int);
+int	 unsetenv(const char *);
+#endif
+
+#if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE
+int	 getsubopt(char **, char *const *, char **);
+#ifndef _MKDTEMP_DECLARED
+char	*mkdtemp(char *);
+#define	_MKDTEMP_DECLARED
+#endif
+#ifndef _MKSTEMP_DECLARED
+int	 mkstemp(char *);
+#define	_MKSTEMP_DECLARED
+#endif
+#endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */
+
+/*
+ * The only changes to the XSI namespace in revision 6 were the deletion
+ * of the ttyslot() and valloc() functions, which FreeBSD never declared
+ * in this header.  For revision 7, ecvt(), fcvt(), and gcvt(), which
+ * FreeBSD also does not have, and mktemp(), are to be deleted.
+ */
+#if __XSI_VISIBLE
+/* XXX XSI requires pollution from <sys/wait.h> here.  We'd rather not. */
+long	 a64l(const char *);
+double	 drand48(void);
+/* char	*ecvt(double, int, int * __restrict, int * __restrict); */
+double	 erand48(unsigned short[3]);
+/* char	*fcvt(double, int, int * __restrict, int * __restrict); */
+/* char	*gcvt(double, int, int * __restrict, int * __restrict); */
+int	 grantpt(int);
+char	*initstate(unsigned long /* XSI requires u_int */, char *, long);
+long	 jrand48(unsigned short[3]);
+char	*l64a(long);
+void	 lcong48(unsigned short[7]);
+long	 lrand48(void);
+#if !defined(_MKTEMP_DECLARED) && (__BSD_VISIBLE || __XSI_VISIBLE <= 600)
+char	*mktemp(char *);
+#define	_MKTEMP_DECLARED
+#endif
+long	 mrand48(void);
+long	 nrand48(unsigned short[3]);
+int	 posix_openpt(int);
+char	*ptsname(int);
+int	 putenv(char *);
+long	 random(void);
+unsigned short
+	*seed48(unsigned short[3]);
+#ifndef _SETKEY_DECLARED
+int	 setkey(const char *);
+#define	_SETKEY_DECLARED
+#endif
+char	*setstate(/* const */ char *);
+void	 srand48(long);
+void	 srandom(unsigned long);
+int	 unlockpt(int);
+#endif /* __XSI_VISIBLE */
+
+#if __BSD_VISIBLE
+extern const char *malloc_conf;
+extern void (*malloc_message)(void *, const char *);
+
+/*
+ * The alloca() function can't be implemented in C, and on some
+ * platforms it can't be implemented at all as a callable function.
+ * The GNU C compiler provides a built-in alloca() which we can use;
+ * in all other cases, provide a prototype, mainly to pacify various
+ * incarnations of lint.  On platforms where alloca() is not in libc,
+ * programs which use it will fail to link when compiled with non-GNU
+ * compilers.
+ */
+#if __GNUC__ >= 2 || defined(__INTEL_COMPILER)
+#undef  alloca	/* some GNU bits try to get cute and define this on their own */
+#define alloca(sz) __builtin_alloca(sz)
+#elif defined(lint)
+void	*alloca(size_t);
+#endif
+
+void	 abort2(const char *, int, void **) __dead2;
+__uint32_t
+	 arc4random(void);
+void	 arc4random_addrandom(unsigned char *, int);
+void	 arc4random_buf(void *, size_t);
+void	 arc4random_stir(void);
+__uint32_t
+	 arc4random_uniform(__uint32_t);
+#ifdef __BLOCKS__
+int	 atexit_b(void (^)(void));
+void	*bsearch_b(const void *, const void *, size_t,
+	    size_t, int (^)(const void *, const void *));
+#endif
+char	*getbsize(int *, long *);
+					/* getcap(3) functions */
+char	*cgetcap(char *, const char *, int);
+int	 cgetclose(void);
+int	 cgetent(char **, char **, const char *);
+int	 cgetfirst(char **, char **);
+int	 cgetmatch(const char *, const char *);
+int	 cgetnext(char **, char **);
+int	 cgetnum(char *, const char *, long *);
+int	 cgetset(const char *);
+int	 cgetstr(char *, const char *, char **);
+int	 cgetustr(char *, const char *, char **);
+
+int	 daemon(int, int);
+char	*devname(__dev_t, __mode_t);
+char 	*devname_r(__dev_t, __mode_t, char *, int);
+char	*fdevname(int);
+char 	*fdevname_r(int, char *, int);
+int	 getloadavg(double [], int);
+const char *
+	 getprogname(void);
+
+int	 heapsort(void *, size_t, size_t, int (*)(const void *, const void *));
+#ifdef __BLOCKS__
+int	 heapsort_b(void *, size_t, size_t, int (^)(const void *, const void *));
+void	 qsort_b(void *, size_t, size_t,
+	    int (^)(const void *, const void *));
+#endif
+int	 l64a_r(long, char *, int);
+int	 mergesort(void *, size_t, size_t, int (*)(const void *, const void *));
+#ifdef __BLOCKS__
+int	 mergesort_b(void *, size_t, size_t, int (^)(const void *, const void *));
+#endif
+int	 mkostemp(char *, int);
+int	 mkostemps(char *, int, int);
+void	 qsort_r(void *, size_t, size_t, void *,
+	    int (*)(void *, const void *, const void *));
+int	 radixsort(const unsigned char **, int, const unsigned char *,
+	    unsigned);
+void    *reallocf(void *, size_t);
+int	 rpmatch(const char *);
+void	 setprogname(const char *);
+int	 sradixsort(const unsigned char **, int, const unsigned char *,
+	    unsigned);
+void	 sranddev(void);
+void	 srandomdev(void);
+long long
+	strtonum(const char *, long long, long long, const char **);
+
+/* Deprecated interfaces, to be removed in FreeBSD 6.0. */
+__int64_t
+	 strtoq(const char *, char **, int);
+__uint64_t
+	 strtouq(const char *, char **, int);
+
+extern char *suboptarg;			/* getsubopt(3) external variable */
+#endif /* __BSD_VISIBLE */
+__END_DECLS
+
+#endif /* !_STDLIB_H_ */