From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?q?Diego=20Elio=20Petten=C3=B2?= Subject: [alsa-lib PATCH] Update attributes.m4 to avoid warnings with autoconf-2.68 Date: Thu, 20 Jan 2011 15:47:03 +0100 Message-ID: <1295534823-31657-1-git-send-email-flameeyes@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-ww0-f51.google.com (mail-ww0-f51.google.com [74.125.82.51]) by alsa0.perex.cz (Postfix) with ESMTP id CE3B32450E for ; Thu, 20 Jan 2011 15:47:07 +0100 (CET) Received: by wwe15 with SMTP id 15so660895wwe.20 for ; Thu, 20 Jan 2011 06:47:07 -0800 (PST) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org --- m4/attributes.m4 | 21 +++++++++++++++------ 1 files changed, 15 insertions(+), 6 deletions(-) diff --git a/m4/attributes.m4 b/m4/attributes.m4 index e86456a..82b4a3c 100644 --- a/m4/attributes.m4 +++ b/m4/attributes.m4 @@ -25,7 +25,7 @@ dnl License when using or distributing such scripts, even though portions dnl of the text of the Macro appear in them. The GNU General Public dnl License (GPL) does govern all other use of the material that dnl constitutes the Autoconf Macro. -dnl +dnl dnl This special exception to the GPL applies to versions of the dnl Autoconf Macro released by this project. When you make and dnl distribute a modified version of the Autoconf Macro, you may extend @@ -39,7 +39,7 @@ AC_DEFUN([CC_CHECK_CFLAGS_SILENT], [ AC_CACHE_VAL(AS_TR_SH([cc_cv_cflags_$1]), [ac_save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $1" - AC_COMPILE_IFELSE([int a;], + AC_LINK_IFELSE([AC_LANG_SOURCE([int main() { return 0; }])], [eval "AS_TR_SH([cc_cv_cflags_$1])='yes'"], [eval "AS_TR_SH([cc_cv_cflags_$1])='no'"]) CFLAGS="$ac_save_CFLAGS" @@ -89,7 +89,7 @@ AC_DEFUN([CC_CHECK_LDFLAGS], [ AS_TR_SH([cc_cv_ldflags_$1]), [ac_save_LDFLAGS="$LDFLAGS" LDFLAGS="$LDFLAGS $1" - AC_LINK_IFELSE([int main() { return 1; }], + AC_LINK_IFELSE([AC_LANG_SOURCE([int main() { return 1; }])], [eval "AS_TR_SH([cc_cv_ldflags_$1])='yes'"], [eval "AS_TR_SH([cc_cv_ldflags_$1])="]) LDFLAGS="$ac_save_LDFLAGS" @@ -147,7 +147,7 @@ AC_DEFUN([CC_CHECK_ATTRIBUTE], [ AS_TR_SH([cc_cv_attribute_$1]), [ac_save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $cc_cv_werror" - AC_COMPILE_IFELSE([$3], + AC_COMPILE_IFELSE([AC_LANG_SOURCE([$3])], [eval "AS_TR_SH([cc_cv_attribute_$1])='yes'"], [eval "AS_TR_SH([cc_cv_attribute_$1])='no'"]) CFLAGS="$ac_save_CFLAGS" @@ -165,7 +165,16 @@ AC_DEFUN([CC_CHECK_ATTRIBUTE], [ AC_DEFUN([CC_ATTRIBUTE_CONSTRUCTOR], [ CC_CHECK_ATTRIBUTE( [constructor],, - [void __attribute__((constructor)) ctor() { int a; }], + [extern void foo(); + void __attribute__((constructor)) ctor() { foo(); }], + [$1], [$2]) +]) + +AC_DEFUN([CC_ATTRIBUTE_DESTRUCTOR], [ + CC_CHECK_ATTRIBUTE( + [destructor],, + [extern void foo(); + void __attribute__((destructor)) dtor() { foo(); }], [$1], [$2]) ]) @@ -257,7 +266,7 @@ AC_DEFUN([CC_FLAG_VISIBILITY], [ cc_cv_flag_visibility='yes', cc_cv_flag_visibility='no') CFLAGS="$cc_flag_visibility_save_CFLAGS"]) - + AS_IF([test "x$cc_cv_flag_visibility" = "xyes"], [AC_DEFINE([SUPPORT_FLAG_VISIBILITY], 1, [Define this if the compiler supports the -fvisibility flag]) -- 1.7.4.rc2