--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2012-04-12  Bruno Haible  <bruno@clisp.org>
+
+	New module 'sys_resource'.
+	* lib/sys_resource.in.h: New file.
+	* m4/sys_resource_h.m4: New file.
+	* modules/sys_resource: New file.
+	* doc/posix-headers/sys_resource.texi: Mention the new module.
+
 2012-04-12  LRN  <lrn1986@gmail.com>  (tiny change)
 
 	ioctl: Fix compilation error on mingw.

--- a/doc/posix-headers/sys_resource.texi
+++ b/doc/posix-headers/sys_resource.texi
@@ -3,20 +3,19 @@
 
 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/basedefs/sys_resource.h.html}
 
-Gnulib module: ---
+Gnulib module: sys_resource
 
 Portability problems fixed by Gnulib:
 @itemize
-@end itemize
-
-Portability problems not fixed by Gnulib:
-@itemize
 @item
 This header file is missing on some platforms:
 mingw, MSVC 9.
-
 @item
 On some platforms, this header file requires that <sys/types.h> and
 <sys/time.h> already be included:
 FreeBSD 5.0.
 @end itemize
+
+Portability problems not fixed by Gnulib:
+@itemize
+@end itemize

new file mode 100644
--- /dev/null
+++ b/lib/sys_resource.in.h
@@ -0,0 +1,85 @@
+/* Substitute for <sys/resource.h>.
+   Copyright (C) 2012 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
+
+# if __GNUC__ >= 3
+@PRAGMA_SYSTEM_HEADER@
+# endif
+@PRAGMA_COLUMNS@
+
+#ifndef _@GUARD_PREFIX@_SYS_RESOURCE_H
+
+#if @HAVE_SYS_RESOURCE_H@
+
+/* On FreeBSD 5.0, <sys/resource.h> assumes prior inclusion of <sys/types.h>
+   and <sys/time.h>.  */
+# include <sys/types.h>
+# include <sys/time.h>
+
+/* The include_next requires a split double-inclusion guard.  */
+# @INCLUDE_NEXT@ @NEXT_SYS_RESOURCE_H@
+
+#endif
+
+#ifndef _@GUARD_PREFIX@_SYS_RESOURCE_H
+#define _@GUARD_PREFIX@_SYS_RESOURCE_H
+
+#if !@HAVE_SYS_RESOURCE_H@
+/* A platform that lacks <sys/resource.h>.  */
+
+/* Get 'struct timeval'.  */
+# include <sys/time.h>
+
+/* Define the RUSAGE_* constants.  */
+# define RUSAGE_SELF 0
+# define RUSAGE_CHILDREN -1
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+# if !GNULIB_defined_struct_rusage
+/* All known platforms that lack <sys/resource.h> also lack any declaration
+   of struct rusage in any other header.  */
+struct rusage
+{
+  struct timeval ru_utime;      /* CPU time used in user mode */
+  struct timeval ru_stime;      /* CPU time used in system mode (kernel) */
+  long ru_maxrss;
+  long ru_ixrss;
+  long ru_idrss;
+  long ru_isrss;
+  long ru_minflt;
+  long ru_majflt;
+  long ru_nswap;
+  long ru_inblock;
+  long ru_oublock;
+  long ru_msgsnd;
+  long ru_msgrcv;
+  long ru_nsignals;
+  long ru_nvcsw;
+  long ru_nivcsw;
+};
+#  define GNULIB_defined_struct_rusage 1
+# endif
+
+# ifdef __cplusplus
+}
+# endif
+
+#endif
+
+#endif /* _@GUARD_PREFIX@_SYS_RESOURCE_H */
+#endif /* _@GUARD_PREFIX@_SYS_RESOURCE_H */

new file mode 100644
--- /dev/null
+++ b/m4/sys_resource_h.m4
@@ -0,0 +1,31 @@
+# sys_resource_h.m4 serial 1
+dnl Copyright (C) 2012 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_HEADER_SYS_RESOURCE],
+[
+  AC_REQUIRE([gl_SYS_RESOURCE_H_DEFAULTS])
+  dnl <sys/resource.h> is always overridden, because of GNULIB_POSIXCHECK.
+  gl_CHECK_NEXT_HEADERS([sys/resource.h])
+  if test $ac_cv_header_sys_resource_h = yes; then
+    HAVE_SYS_RESOURCE_H=1
+  else
+    HAVE_SYS_RESOURCE_H=0
+  fi
+  AC_SUBST([HAVE_SYS_RESOURCE_H])
+])
+
+AC_DEFUN([gl_SYS_RESOURCE_MODULE_INDICATOR],
+[
+  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
+  AC_REQUIRE([gl_SYS_RESOURCE_H_DEFAULTS])
+  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
+  dnl Define it also as a C macro, for the benefit of the unit tests.
+  gl_MODULE_INDICATOR_FOR_TESTS([$1])
+])
+
+AC_DEFUN([gl_SYS_RESOURCE_H_DEFAULTS],
+[
+])

new file mode 100644
--- /dev/null
+++ b/modules/sys_resource
@@ -0,0 +1,44 @@
+Description:
+A POSIX-like <sys/resource.h>.
+
+Files:
+lib/sys_resource.in.h
+m4/sys_resource_h.m4
+
+Depends-on:
+include_next
+sys_time
+
+configure.ac:
+gl_HEADER_SYS_RESOURCE
+AC_PROG_MKDIR_P
+
+Makefile.am:
+BUILT_SOURCES += sys/resource.h
+
+# We need the following in order to create <sys/resource.h> when the system
+# doesn't have one.
+sys/resource.h: sys_resource.in.h $(top_builddir)/config.status
+	$(AM_V_at)$(MKDIR_P) sys
+	$(AM_V_GEN)rm -f $@-t $@ && \
+	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
+	  sed -e 's|@''GUARD_PREFIX''@|${gl_include_guard_prefix}|g' \
+	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
+	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
+	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
+	      -e 's|@''NEXT_SYS_RESOURCE_H''@|$(NEXT_SYS_RESOURCE_H)|g' \
+	      -e 's|@''HAVE_SYS_RESOURCE_H''@|$(HAVE_SYS_RESOURCE_H)|g' \
+	      < $(srcdir)/sys_resource.in.h; \
+	} > $@-t && \
+	mv -f $@-t $@
+MOSTLYCLEANFILES += sys/resource.h sys/resource.h-t
+MOSTLYCLEANDIRS += sys
+
+Include:
+<sys/resource.h>
+
+License:
+LGPL
+
+Maintainer:
+Bruno Haible