diff options
Diffstat (limited to 'build-aux/m4/ax_check_preproc_flag.m4')
| -rw-r--r-- | build-aux/m4/ax_check_preproc_flag.m4 | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/build-aux/m4/ax_check_preproc_flag.m4 b/build-aux/m4/ax_check_preproc_flag.m4 deleted file mode 100644 index e43560fbd3..0000000000 --- a/build-aux/m4/ax_check_preproc_flag.m4 +++ /dev/null @@ -1,53 +0,0 @@ -# =========================================================================== -# https://www.gnu.org/software/autoconf-archive/ax_check_preproc_flag.html -# =========================================================================== -# -# SYNOPSIS -# -# AX_CHECK_PREPROC_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT]) -# -# DESCRIPTION -# -# Check whether the given FLAG works with the current language's -# preprocessor or gives an error. (Warnings, however, are ignored) -# -# ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on -# success/failure. -# -# If EXTRA-FLAGS is defined, it is added to the preprocessor's default -# flags when the check is done. The check is thus made with the flags: -# "CPPFLAGS EXTRA-FLAGS FLAG". This can for example be used to force the -# preprocessor to issue an error when a bad flag is given. -# -# INPUT gives an alternative input source to AC_PREPROC_IFELSE. -# -# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this -# macro in sync with AX_CHECK_{COMPILE,LINK}_FLAG. -# -# LICENSE -# -# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de> -# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com> -# -# Copying and distribution of this file, with or without modification, are -# permitted in any medium without royalty provided the copyright notice -# and this notice are preserved. This file is offered as-is, without any -# warranty. - -#serial 6 - -AC_DEFUN([AX_CHECK_PREPROC_FLAG], -[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF -AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]cppflags_$4_$1])dnl -AC_CACHE_CHECK([whether _AC_LANG preprocessor accepts $1], CACHEVAR, [ - ax_check_save_flags=$CPPFLAGS - CPPFLAGS="$CPPFLAGS $4 $1" - AC_PREPROC_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])], - [AS_VAR_SET(CACHEVAR,[yes])], - [AS_VAR_SET(CACHEVAR,[no])]) - CPPFLAGS=$ax_check_save_flags]) -AS_VAR_IF(CACHEVAR,yes, - [m4_default([$2], :)], - [m4_default([$3], :)]) -AS_VAR_POPDEF([CACHEVAR])dnl -])dnl AX_CHECK_PREPROC_FLAGS |