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| author | Adam Cozzette <acozzette@google.com> | 2018-05-31 10:07:28 -0700 |
|---|---|---|
| committer | Jan Tattermusch <jtattermusch@google.com> | 2018-06-01 09:44:36 +0200 |
| commit | 5f418d4776099868bb7504ecf74f78ac4690e0d6 (patch) | |
| tree | 9b874eebc051be31d6627d1d13c2a1fe1233450c /configure.ac | |
| parent | f8262db9191280d9e8ed0b2f4a77f71f86960c46 (diff) | |
| download | protobuf-5f418d4776099868bb7504ecf74f78ac4690e0d6.tar.gz protobuf-5f418d4776099868bb7504ecf74f78ac4690e0d6.tar.bz2 protobuf-5f418d4776099868bb7504ecf74f78ac4690e0d6.zip | |
Require C++11 and pass -std=c++11
This commit updates the Autotools build to require a C++11 compiler and
explicitly pass -std=c++11. This seems to be necessary for enabling
C++11 support in older compilers.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index 7a5e3ab2..634c0a69 100644 --- a/configure.ac +++ b/configure.ac @@ -88,7 +88,7 @@ AS_IF([test "x${ac_cv_env_CXXFLAGS_set}" = "x"],[ # Protocol Buffers contains several checks that are intended to be used only # for debugging and which might hurt performance. Most users are probably # end users who don't want these checks, so add -DNDEBUG by default. - CXXFLAGS="$CXXFLAGS -DNDEBUG" + CXXFLAGS="$CXXFLAGS -std=c++11 -DNDEBUG" AC_MSG_RESULT([use default: $PROTOBUF_OPT_FLAG $CXXFLAGS]) ],[ @@ -207,7 +207,7 @@ case "$target_os" in esac AM_CONDITIONAL([OBJC_CONFORMANCE_TEST], [test $OBJC_CONFORMANCE_TEST = 1]) -AX_CXX_COMPILE_STDCXX([11], [noext], [optional]) +AX_CXX_COMPILE_STDCXX([11], [noext], [mandatory]) # HACK: Make gmock's configure script pick up our copy of CFLAGS and CXXFLAGS, # since the flags added by ACX_CHECK_SUNCC must be used when compiling gmock |