changeset 4718:bef5218f3bbe

(gl_USE_SYSTEM_EXTENSIONS): Call AC_BEFORE first, to avoid spurious warnings like "AC_RUN_IFELSE was called before gl_USE_SYSTEM_EXTENSIONS" from autoreconf. Add copyright notice. Put AC_GNU_SOURCE before AC_AIX (to indicate relative importance :-).
author Paul Eggert <eggert@cs.ucla.edu>
date Wed, 17 Sep 2003 22:35:01 +0000
parents ed7cd4050365
children e6ff70bf10f9
files m4/extensions.m4
diffstat 1 files changed, 15 insertions(+), 3 deletions(-) [+]
line wrap: on
line diff
--- a/m4/extensions.m4
+++ b/m4/extensions.m4
@@ -1,17 +1,29 @@
+# Enable extensions on systems that normally disable them.
+
+# Copyright (C) 2003 Free Software Foundation, Inc.
+
+# This file is free software, distributed under the terms of the GNU
+# General Public License.  As a special exception to the GNU General
+# Public License, this file may be distributed as part of a program
+# that contains a configuration script generated by Autoconf, under
+# the same distribution terms as the rest of that program.
+
 # gl_USE_SYSTEM_EXTENSIONS
 # ------------------------
 # Enable extensions on systems that normally disable them,
 # typically due to standards-conformance issues.
 AC_DEFUN([gl_USE_SYSTEM_EXTENSIONS], [
-  AC_REQUIRE([AC_AIX])
+  AC_BEFORE([$0], [AC_COMPILE_IFELSE])
+  AC_BEFORE([$0], [AC_RUN_IFELSE])
+
   AC_REQUIRE([AC_GNU_SOURCE])
+  AC_REQUIRE([AC_AIX])
   AC_REQUIRE([AC_MINIX])
+
   AH_VERBATIM([__EXTENSIONS__],
 [/* Enable extensions on Solaris.  */
 #ifndef __EXTENSIONS__
 # undef __EXTENSIONS__
 #endif])
-  AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl
-  AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
   AC_DEFINE([__EXTENSIONS__])
 ])