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mirror of https://git.savannah.gnu.org/git/gnulib.git synced 2025-09-11 11:50:52 +03:00

(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 :-).
This commit is contained in:
Paul Eggert
2003-09-17 22:35:01 +00:00
parent f19e314ddc
commit d9b9fc6b5b

View File

@@ -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__])
])