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authorEric Blake <ebb9@byu.net>2009-01-26 09:24:23 -0700
committerEric Blake <ebb9@byu.net>2009-01-26 09:25:46 -0700
commit984e414921a4e22c44d877d3f10fd55ae942397b (patch)
tree3c52b80587de7f0353f6f95fa11be805ea4d7a9d /m4/extensions.m4
parentfcf62c3dfcc0a9ca32860327494e9971623f062c (diff)
downloadgnulib-984e414921a4e22c44d877d3f10fd55ae942397b.tar.gz
Silence warning reintroduced by recent extensions patch.
* m4/extensions.m4 (AC_USE_SYSTEM_EXTENSIONS) (gl_USE_SYSTEM_EXTENSIONS): Use AC_DEFUN_ONCE to silence newer autoconf. Signed-off-by: Eric Blake <ebb9@byu.net>
Diffstat (limited to 'm4/extensions.m4')
-rw-r--r--m4/extensions.m46
1 files changed, 3 insertions, 3 deletions
diff --git a/m4/extensions.m4 b/m4/extensions.m4
index b7ee9ef130..ba6d5e190f 100644
--- a/m4/extensions.m4
+++ b/m4/extensions.m4
@@ -1,4 +1,4 @@
-# serial 7 -*- Autoconf -*-
+# serial 8 -*- Autoconf -*-
# Enable extensions on systems that normally disable them.
# Copyright (C) 2003, 2006-2009 Free Software Foundation, Inc.
@@ -20,7 +20,7 @@
# AC_DEFINE. The goal here is to define all known feature-enabling
# macros, then, if reports of conflicts are made, disable macros that
# cause problems on some platforms (such as __EXTENSIONS__).
-AC_DEFUN([AC_USE_SYSTEM_EXTENSIONS],
+AC_DEFUN_ONCE([AC_USE_SYSTEM_EXTENSIONS],
[AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl
AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
@@ -90,7 +90,7 @@ AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
# ------------------------
# Enable extensions on systems that normally disable them,
# typically due to standards-conformance issues.
-AC_DEFUN([gl_USE_SYSTEM_EXTENSIONS],
+AC_DEFUN_ONCE([gl_USE_SYSTEM_EXTENSIONS],
[
dnl Require this macro before AC_USE_SYSTEM_EXTENSIONS.
dnl gnulib does not need it. But if it gets required by third-party macros