diff --git a/libc/include/limits.h b/libc/include/limits.h
new file mode 100644
index 0000000..c204e4d
--- /dev/null
+++ b/libc/include/limits.h
@@ -0,0 +1,96 @@
+/*	$OpenBSD: limits.h,v 1.13 2005/12/31 19:29:38 millert Exp $	*/
+/*	$NetBSD: limits.h,v 1.7 1994/10/26 00:56:00 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1988 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.
+ *
+ *	@(#)limits.h	5.9 (Berkeley) 4/3/91
+ */
+
+#ifndef _LIMITS_H_
+#define	_LIMITS_H_
+
+#include <sys/cdefs.h>
+
+#if __POSIX_VISIBLE
+#define	_POSIX_ARG_MAX		4096
+#define	_POSIX_CHILD_MAX	25
+#define	_POSIX_LINK_MAX		8
+#define	_POSIX_MAX_CANON	255
+#define	_POSIX_MAX_INPUT	255
+#define	_POSIX_NAME_MAX		14
+#define	_POSIX_NGROUPS_MAX	0
+#define	_POSIX_OPEN_MAX		16
+#define	_POSIX_PATH_MAX		256
+#define _POSIX_PIPE_BUF		512
+#define	_POSIX_RE_DUP_MAX	255
+#define _POSIX_SSIZE_MAX	32767
+#define _POSIX_STREAM_MAX	8
+#define _POSIX_SYMLINK_MAX	255
+#define _POSIX_SYMLOOP_MAX	8
+#define _POSIX_TZNAME_MAX	3
+
+#define	_POSIX2_BC_BASE_MAX	99
+#define	_POSIX2_BC_DIM_MAX	2048
+#define	_POSIX2_BC_SCALE_MAX	99
+#define	_POSIX2_BC_STRING_MAX	1000
+#define	_POSIX2_COLL_WEIGHTS_MAX	2
+#define	_POSIX2_EXPR_NEST_MAX	32
+#define	_POSIX2_LINE_MAX	2048
+#define	_POSIX2_RE_DUP_MAX	_POSIX_RE_DUP_MAX
+
+#if __POSIX_VISIBLE >= 200112
+#define _POSIX_TTY_NAME_MAX	9	/* includes trailing NUL */
+#define _POSIX_LOGIN_NAME_MAX	9	/* includes trailing NUL */
+#endif /* __POSIX_VISIBLE >= 200112 */
+#endif /* __POSIX_VISIBLE */
+
+#if __XPG_VISIBLE
+#define PASS_MAX		128	/* _PASSWORD_LEN from <pwd.h> */
+
+#define NL_ARGMAX		9
+#define NL_LANGMAX		14
+#define NL_MSGMAX		32767
+#define NL_NMAX			1
+#define NL_SETMAX		255
+#define NL_TEXTMAX		255
+
+#define TMP_MAX                 308915776
+#endif /* __XPG_VISIBLE */
+
+#include <sys/limits.h>
+
+#if __POSIX_VISIBLE
+#include <arch/syslimits.h>
+#endif
+
+#ifndef PAGESIZE
+#define  PAGESIZE  PAGE_SIZE
+#endif
+
+#endif /* !_LIMITS_H_ */