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authorFlorian Weimer <fweimer@redhat.com>2017-06-13 22:09:59 +0200
committerH.J. Lu <hjl.tools@gmail.com>2017-06-30 09:43:16 -0700
commitdc25211f1e94836f6c8e58bcd7e938feef4cf408 (patch)
tree6c039f8bc32840f7cdb7968cef3eaae3099d2111 /configure.ac
parent4f990f7a50ddfbcad197a937de840937aad2fd44 (diff)
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configure: Suppress expected compiler error message
(cherry picked from commit c2528fef3b05bcffb1ac27c6c09cc3ff24b7f03f)
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac3
1 files changed, 2 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index 7ce8b28..644ff5a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1043,7 +1043,8 @@ AC_SUBST(CXX_SYSINCLUDES)
# copy of those headers in Makerules.
if test -n "$CXX"; then
find_cxx_header () {
- echo "#include <$1>" | $CXX -M -MP -x c++ - | sed -n "\,$1:,{s/:\$//;p}"
+ echo "#include <$1>" | $CXX -M -MP -x c++ - 2>/dev/null \
+ | sed -n "\,$1:,{s/:\$//;p}"
}
CXX_CSTDLIB_HEADER="$(find_cxx_header cstdlib)"
CXX_CMATH_HEADER="$(find_cxx_header cmath)"