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authordim <dim@FreeBSD.org>2012-04-14 13:54:10 +0000
committerdim <dim@FreeBSD.org>2012-04-14 13:54:10 +0000
commit1fc08f5e9ef733ef1ce6f363fecedc2260e78974 (patch)
tree19c69a04768629f2d440944b71cbe90adae0b615 /projects/sample/autoconf/m4/cxx_flag_check.m4
parent07637c87f826cdf411f0673595e9bc92ebd793f2 (diff)
downloadFreeBSD-src-1fc08f5e9ef733ef1ce6f363fecedc2260e78974.zip
FreeBSD-src-1fc08f5e9ef733ef1ce6f363fecedc2260e78974.tar.gz
Vendor import of llvm trunk r154661:
http://llvm.org/svn/llvm-project/llvm/trunk@r154661
Diffstat (limited to 'projects/sample/autoconf/m4/cxx_flag_check.m4')
-rw-r--r--projects/sample/autoconf/m4/cxx_flag_check.m42
1 files changed, 2 insertions, 0 deletions
diff --git a/projects/sample/autoconf/m4/cxx_flag_check.m4 b/projects/sample/autoconf/m4/cxx_flag_check.m4
new file mode 100644
index 0000000..62454b7
--- /dev/null
+++ b/projects/sample/autoconf/m4/cxx_flag_check.m4
@@ -0,0 +1,2 @@
+AC_DEFUN([CXX_FLAG_CHECK],
+ [AC_SUBST($1, `$CXX -Werror $2 -fsyntax-only -xc /dev/null 2>/dev/null && echo $2`)])
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