From 284d80c385e7e328fe877b1c86d0bb34c2a4fe5f Mon Sep 17 00:00:00 2001 From: Daniel Jacobowitz Date: Thu, 25 Sep 2003 14:27:21 +0000 Subject: * acx.m4 (AC_PROG_CPP_WERROR): New. --- config/acx.m4 | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'config/acx.m4') diff --git a/config/acx.m4 b/config/acx.m4 index ea5cb07dc..96b7c8a5c 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 -- cgit v1.2.3