X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=m4%2Fflags.m4;h=0bf8c3b163504591a9a40e69c4c40a436ac957ae;hb=23fe953dbb391d1a20a6b75a79d41ff8a2d77f82;hp=041c58910f511bd3d552e973a471cc86a36e821f;hpb=de0f8ecbe207ed2f8272c7cb84dfa161dba9a8a5;p=vlc

diff --git a/m4/flags.m4 b/m4/flags.m4
index 041c58910f..0bf8c3b163 100644
--- a/m4/flags.m4
+++ b/m4/flags.m4
@@ -13,7 +13,7 @@ AC_DEFUN([RDC_PROG_CC_FLAGS_IFELSE],
   CFLAGS_save="${CFLAGS}"
   as_ac_var=`echo "ac_cv_prog_cc_flags_$1" | $as_tr_sh`
   AC_CACHE_CHECK([if $CC accepts $1], [$as_ac_var], [
-    CFLAGS="${CFLAGS_save} $1"
+    CFLAGS="${CFLAGS} $1"
     AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
       eval "$as_ac_var=yes"
     ],[
@@ -24,8 +24,6 @@ AC_DEFUN([RDC_PROG_CC_FLAGS_IFELSE],
   ac_res=`eval echo '${'$as_ac_var'}'`
   AS_IF([test "${ac_res}" != "no"], [
     CFLAGS="${CFLAGS_save} $1"
-    CXXFLAGS="${CFLAGS_save} $1"
-    OBJCFLAGS="${OBJCFLAGS_save} $1"
     $2
   ], [
     CFLAGS="${CFLAGS_save}"
@@ -38,3 +36,26 @@ AC_DEFUN([RDC_PROG_CC_WFLAGS],
     RDC_PROG_CC_FLAGS_IFELSE([-W$a])
   done
 ])
+
+AC_DEFUN([RDC_PROG_LINK_FLAGS_IFELSE],
+[AC_LANG_ASSERT(C)
+  LDFLAGS_save="${LDFLAGS}"
+  as_ac_var=`echo "ac_cv_prog_link_flags_$1" | $as_tr_sh`
+  AC_CACHE_CHECK([if $LINK accepts $1], [$as_ac_var], [
+    LDFLAGS="${LDFLAGS} $1"
+    AC_LINK_IFELSE([AC_LANG_PROGRAM()], [
+      eval "$as_ac_var=yes"
+    ],[
+      eval "$as_ac_var=no"
+    ])
+  ])
+
+  ac_res=`eval echo '${'$as_ac_var'}'`
+  AS_IF([test "${ac_res}" != "no"], [
+    LDFLAGS="${LDFLAGS} $1"
+    $2
+  ], [
+    LDFLAGS="${LDFLAGS_save}"
+    $3
+  ])
+])