X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fwarnings.m4;h=c32cf4ed66b7a4ae0bc1a7f3db4cd43288b4ae63;hb=78d218ff8a7c36feaa55c58abdcec8270654e6f1;hp=d2854d95433c989cfd115a74d07f1efbbf57c1d8;hpb=b383aaabadb883fa8be0a826500b516a2eee8f69;p=gnulib.git

diff --git a/m4/warnings.m4 b/m4/warnings.m4
index d2854d954..c32cf4ed6 100644
--- a/m4/warnings.m4
+++ b/m4/warnings.m4
@@ -1,4 +1,4 @@
-# warnings.m4 serial 1
+# warnings.m4 serial 2
 dnl Copyright (C) 2008 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -29,12 +29,12 @@ m4_ifdef([AS_VAR_APPEND],
 AC_DEFUN([gl_WARN_ADD],
 [AS_VAR_PUSHDEF([gl_Warn], [gl_cv_warn_$1])dnl
 AC_CACHE_CHECK([whether compiler handles $1], [gl_Warn], [
-  save_CFLAGS="$CFLAGS"
-  CFLAGS="${CFLAGS} $1"
+  save_CPPFLAGS="$CPPFLAGS"
+  CPPFLAGS="${CPPFLAGS} $1"
   AC_PREPROC_IFELSE([AC_LANG_PROGRAM([])],
                     [AS_VAR_SET([gl_Warn], [yes])],
 		    [AS_VAR_SET([gl_Warn], [no])])
-  CFLAGS="$save_CFLAGS"
+  CPPFLAGS="$save_CPPFLAGS"
 ])
 AS_VAR_PUSHDEF([gl_Flags], m4_if([$2], [], [[WARN_CFLAGS]], [[$2]]))dnl
 gl_AS_VAR_IF([gl_Warn], [yes], [gl_AS_VAR_APPEND([gl_Flags], [" $1"])])