From: Paul Eggert <eggert@cs.ucla.edu>
Date: Fri, 22 Jul 2011 16:26:38 +0000 (-0700)
Subject: extensions: Enable extensions on MacOS X 10.5 and later.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a90c7558ac078a459cb204f5140ed74e16c65ed6;p=pspp

extensions: Enable extensions on MacOS X 10.5 and later.

* m4/extensions.m4 (AC_USE_SYSTEM_EXTENSIONS): Define _DARWIN_C_SOURCE.
---

diff --git a/ChangeLog b/ChangeLog
index 4b9955cfa5..0a90446eca 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2011-07-22  Paul Eggert  <eggert@cs.ucla.edu>
+
+	extensions: Enable extensions on MacOS X 10.5 and later.
+	* m4/extensions.m4 (AC_USE_SYSTEM_EXTENSIONS): Define _DARWIN_C_SOURCE.
+
 2011-07-22  Kamil Dudka  <kdudka@redhat.com>
 
 	file-has-acl: use acl_extended_file_nofollow if available
diff --git a/m4/extensions.m4 b/m4/extensions.m4
index 1330503f0d..22156e068c 100644
--- a/m4/extensions.m4
+++ b/m4/extensions.m4
@@ -1,4 +1,4 @@
-# serial 9  -*- Autoconf -*-
+# serial 10  -*- Autoconf -*-
 # Enable extensions on systems that normally disable them.
 
 # Copyright (C) 2003, 2006-2011 Free Software Foundation, Inc.
@@ -67,6 +67,10 @@ AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
 #ifndef _ALL_SOURCE
 # undef _ALL_SOURCE
 #endif
+/* Enable general extensions on MacOS X.  */
+#ifndef _DARWIN_C_SOURCE
+# undef _DARWIN_C_SOURCE
+#endif
 /* Enable GNU extensions on systems that have them.  */
 #ifndef _GNU_SOURCE
 # undef _GNU_SOURCE
@@ -95,6 +99,7 @@ AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
   test $ac_cv_safe_to_define___extensions__ = yes &&
     AC_DEFINE([__EXTENSIONS__])
   AC_DEFINE([_ALL_SOURCE])
+  AC_DEFINE([_DARWIN_C_SOURCE])
   AC_DEFINE([_GNU_SOURCE])
   AC_DEFINE([_POSIX_PTHREAD_SEMANTICS])
   AC_DEFINE([_TANDEM_SOURCE])