From 984e414921a4e22c44d877d3f10fd55ae942397b Mon Sep 17 00:00:00 2001 From: Eric Blake <ebb9@byu.net> Date: Mon, 26 Jan 2009 09:24:23 -0700 Subject: [PATCH] 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> --- ChangeLog | 5 +++++ m4/extensions.m4 | 6 +++--- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/ChangeLog b/ChangeLog index a8f6e1d485..bd387c99da 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,10 @@ 2009-01-26 Eric Blake <ebb9@byu.net> + 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. + Backport improved autoconf semantics of AC_DEFUN_ONCE. * m4/00gnulib.m4: New file. * gnulib-tool (func_get_filelist): Always use it. 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 -- 2.30.2