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| author | drow <drow@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-09-25 14:27:52 +0000 |
|---|---|---|
| committer | drow <drow@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-09-25 14:27:52 +0000 |
| commit | 1ba8a5f4e275834d3d7d25b78838bef0c2dc7fbd (patch) | |
| tree | a58060851e2ef59de865d6488c30bdca79ee567b /config/acx.m4 | |
| parent | 90305aaf442f0b6701fece5c7fb26193e449aee7 (diff) | |
| download | gcc-1ba8a5f4e275834d3d7d25b78838bef0c2dc7fbd.tar.gz | |
* acx.m4 (AC_PROG_CPP_WERROR): New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@71776 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'config/acx.m4')
| -rw-r--r-- | config/acx.m4 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/config/acx.m4 b/config/acx.m4 index ea5cb07dcab..96b7c8a5cad 100644 --- a/config/acx.m4 +++ b/config/acx.m4 @@ -140,3 +140,18 @@ else $1="$ac_cv_prog_$1" fi ]) []dnl # NCN_STRICT_CHECK_TARGET_TOOL + +### +# AC_PROG_CPP_WERROR +# Used for autoconf 2.5x to force AC_PREPROC_IFELSE to reject code which +# triggers warnings from the preprocessor. Will be in autoconf 2.58. +# For now, using this also overrides header checks to use only the +# preprocessor (matches 2.13 behavior; matching 2.58's behavior is a +# bit harder from here). +# Eventually autoconf will default to checking headers with the compiler +# instead, and we'll have to do this differently. + +AC_DEFUN([AC_PROG_CPP_WERROR], +[AC_REQUIRE([AC_PROG_CPP])dnl +m4_define([AC_CHECK_HEADER],m4_defn([_AC_CHECK_HEADER_OLD])) +ac_c_preproc_warn_flag=yes])# AC_PROG_CPP_WERROR |