diff --git a/include/stdlib/sys/limits.h b/include/stdlib/sys/limits.h
new file mode 100644
index 0000000..c56a337
--- /dev/null
+++ b/include/stdlib/sys/limits.h
@@ -0,0 +1,100 @@
+/*-
+ * Copyright (c) 1988, 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.
+ * 4. 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _SYS_LIMITS_H_
+#define	_SYS_LIMITS_H_
+
+#include <sys/cdefs.h>
+#include <machine/_limits.h>
+
+#define	CHAR_BIT	__CHAR_BIT	/* number of bits in a char */
+
+#define	SCHAR_MAX	__SCHAR_MAX	/* max value for a signed char */
+#define	SCHAR_MIN	__SCHAR_MIN	/* min value for a signed char */
+
+#define	UCHAR_MAX	__UCHAR_MAX	/* max value for an unsigned char */
+
+#ifdef __CHAR_UNSIGNED__
+#define	CHAR_MAX	UCHAR_MAX	/* max value for a char */
+#define	CHAR_MIN	0		/* min value for a char */
+#else
+#define	CHAR_MAX	SCHAR_MAX
+#define	CHAR_MIN	SCHAR_MIN
+#endif
+
+#define	USHRT_MAX	__USHRT_MAX	/* max value for an unsigned short */
+#define	SHRT_MAX	__SHRT_MAX	/* max value for a short */
+#define	SHRT_MIN	__SHRT_MIN	/* min value for a short */
+
+#define	UINT_MAX	__UINT_MAX	/* max value for an unsigned int */
+#define	INT_MAX		__INT_MAX	/* max value for an int */
+#define	INT_MIN		__INT_MIN	/* min value for an int */
+
+#define	ULONG_MAX	__ULONG_MAX	/* max for an unsigned long */
+#define	LONG_MAX	__LONG_MAX	/* max for a long */
+#define	LONG_MIN	__LONG_MIN	/* min for a long */
+
+#ifdef __LONG_LONG_SUPPORTED
+#define	ULLONG_MAX	__ULLONG_MAX	/* max for an unsigned long long */
+#define	LLONG_MAX	__LLONG_MAX	/* max for a long long */
+#define	LLONG_MIN	__LLONG_MIN	/* min for a long long */
+#endif
+
+#if __POSIX_VISIBLE || __XSI_VISIBLE
+#define	SSIZE_MAX	__SSIZE_MAX	/* max value for an ssize_t */
+#endif
+
+#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
+#define	SIZE_T_MAX	__SIZE_T_MAX	/* max value for a size_t */
+
+#define	OFF_MAX		__OFF_MAX	/* max value for an off_t */
+#define	OFF_MIN		__OFF_MIN	/* min value for an off_t */
+#endif
+
+#if __BSD_VISIBLE
+#define	GID_MAX		UINT_MAX	/* max value for a gid_t */
+#define	UID_MAX		UINT_MAX	/* max value for a uid_t */
+
+#define	UQUAD_MAX	(__UQUAD_MAX)	/* max value for a uquad_t */
+#define	QUAD_MAX	(__QUAD_MAX)	/* max value for a quad_t */
+#define	QUAD_MIN	(__QUAD_MIN)	/* min value for a quad_t */
+#endif
+
+#if __XSI_VISIBLE || __POSIX_VISIBLE >= 200809
+#define	LONG_BIT	__LONG_BIT
+#define	WORD_BIT	__WORD_BIT
+#endif
+
+#if __POSIX_VISIBLE
+#define	MQ_PRIO_MAX	64
+#endif
+
+#endif /* !_SYS_LIMITS_H_ */