Mercurial > hg > sv-dependency-builds

view src/libsndfile-1.0.25/M4/add_cxxflags.m4 @ 94:d278df1123f9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add liblo
author Chris Cannam <cannam@all-day-breakfast.com>
date Wed, 20 Mar 2013 15:25:02 +0000
parents 545efbb81310
children
line wrap: on
line source
dnl @synopsis MN_ADD_CXXFLAGS
dnl
dnl Add the given option to CXXFLAGS, if it doesn't break the compiler

AC_DEFUN([MN_ADD_CXXFLAGS],
[AC_MSG_CHECKING([if $CXX accepts $1])
	AC_LANG_ASSERT([C++])
	ac_add_cxxflags__old_cxxflags="$CXXFLAGS"
	CXXFLAGS="$1"
	AC_TRY_LINK([
			#include <cstdio>
			],
		[puts("Hello, World!"); return 0;],
		AC_MSG_RESULT([yes])
			CXXFLAGS="$ac_add_cxxflags__old_cxxflags $1",
		AC_MSG_RESULT([no])
			CXXFLAGS="$ac_add_cxxflags__old_cxxflags"
		)
])# MN_ADD_CXXFLAGS