[gentoo-commits] proj/sandbox:master commit in: m4/

["Mike Gilbert" <floppym@gentoo.org>]

commit:     da56efba489456c5b9374c76b5f74b60f8eb9891
Author:     Mike Gilbert <floppym <AT> gentoo <DOT> org>
AuthorDate: Mon Nov  4 19:13:22 2024 +0000
Commit:     Mike Gilbert <floppym <AT> gentoo <DOT> org>
CommitDate: Mon Nov  4 19:13:22 2024 +0000
URL:        https://gitweb.gentoo.org/proj/sandbox.git/commit/?id=da56efba

Update ax_check_compile_flag.m4

Signed-off-by: Mike Gilbert <floppym <AT> gentoo.org>

 m4/ax_check_compile_flag.m4 | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/m4/ax_check_compile_flag.m4 b/m4/ax_check_compile_flag.m4
index bd753b3..54191c5 100644
--- a/m4/ax_check_compile_flag.m4
+++ b/m4/ax_check_compile_flag.m4
@@ -34,14 +34,24 @@
 #   and this notice are preserved.  This file is offered as-is, without any
 #   warranty.
 
-#serial 6
+#serial 11
 
 AC_DEFUN([AX_CHECK_COMPILE_FLAG],
 [AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
 AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
-AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
+AC_CACHE_CHECK([whether the _AC_LANG compiler accepts $1], CACHEVAR, [
   ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
-  _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
+  if test x"m4_case(_AC_LANG,
+                     [C], [$GCC],
+                     [C++], [$GXX],
+                     [Fortran], [$GFC],
+                     [Fortran 77], [$G77],
+                     [Objective C], [$GOBJC],
+                     [Objective C++], [$GOBJCXX],
+                     [no])" = xyes ; then
+    add_gnu_werror="-Werror"
+  fi
+  _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1 $add_gnu_werror"
   AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
     [AS_VAR_SET(CACHEVAR,[yes])],
     [AS_VAR_SET(CACHEVAR,[no])])