From bae4a7b081c50bb420f9a8ca4b3426b284708a42 Mon Sep 17 00:00:00 2001 From: Diego 'Flameeyes' Pettenò Date: Tue, 28 Oct 2008 19:50:01 +0100 Subject: Update attributes.m4 from lscube projects. --- m4/attributes.m4 | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/m4/attributes.m4 b/m4/attributes.m4 index 9c4a0c8..45ea789 100644 --- a/m4/attributes.m4 +++ b/m4/attributes.m4 @@ -32,6 +32,9 @@ dnl distribute a modified version of the Autoconf Macro, you may extend dnl this special exception to the GPL to apply to your modified version as dnl well. +dnl Check if the flag is supported by compiler +dnl CC_CHECK_CFLAGS_SILENT([FLAG], [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND]) + AC_DEFUN([CC_CHECK_CFLAGS_SILENT], [ AC_CACHE_VAL(AS_TR_SH([cc_cv_cflags_$1]), [ac_save_CFLAGS="$CFLAGS" @@ -46,6 +49,9 @@ AC_DEFUN([CC_CHECK_CFLAGS_SILENT], [ [$2], [$3]) ]) +dnl Check if the flag is supported by compiler (cacheable) +dnl CC_CHECK_CFLAGS([FLAG], [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND]) + AC_DEFUN([CC_CHECK_CFLAGS], [ AC_CACHE_CHECK([if $CC supports $1 flag], AS_TR_SH([cc_cv_cflags_$1]), @@ -56,6 +62,28 @@ AC_DEFUN([CC_CHECK_CFLAGS], [ [$2], [$3]) ]) +dnl CC_CHECK_CFLAG_APPEND(FLAG, [action-if-found], [action-if-not-found]) +dnl Check for CFLAG and appends them to CFLAGS if supported +AC_DEFUN([CC_CHECK_CFLAG_APPEND], [ + AC_CACHE_CHECK([if $CC supports $1 flag], + AS_TR_SH([cc_cv_cflags_$1]), + CC_CHECK_CFLAGS_SILENT([$1]) dnl Don't execute actions here! + ) + + AS_IF([eval test x$]AS_TR_SH([cc_cv_cflags_$1])[ = xyes], + [CFLAGS="$CFLAGS $1"; $2], [$3]) +]) + +dnl CC_CHECK_CFLAGS_APPEND([FLAG1 FLAG2], [action-if-found], [action-if-not]) +AC_DEFUN([CC_CHECK_CFLAGS_APPEND], [ + for flag in $1; do + CC_CHECK_CFLAG_APPEND($flag, [$2], [$3]) + done +]) + +dnl Check if the flag is supported by linker (cacheable) +dnl CC_CHECK_LDFLAGS([FLAG], [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND]) + AC_DEFUN([CC_CHECK_LDFLAGS], [ AC_CACHE_CHECK([if $CC supports $1 flag], AS_TR_SH([cc_cv_ldflags_$1]), -- cgit