--disable-optimize triggers optimized builds.

../configure --disable-optimize

ccache g++ -Qunused-arguments -fcolor-diagnostics -DPACKAGE_NAME=\"libprocess\" -DPACKAGE_TARNAME=\"libprocess\" -DPACKAGE_VERSION=\"0.0.1\" -DPACKAGE_STRING=\"libprocess\ 0.0.1\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -DPACKAGE=\"libprocess\" -DVERSION=\"0.0.1\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DLT_OBJDIR=\".libs/\" -DHAVE_APR_POOLS_H=1 -DHAVE_LIBAPR_1=1 -DHAVE_SVN_VERSION_H=1 -DHAVE_LIBSVN_SUBR_1=1 -DHAVE_SVN_DELTA_H=1 -DHAVE_LIBSVN_DELTA_1=1 -DHAVE_LIBCURL=1 -DHAVE_PTHREAD_PRIO_INHERIT=1 -DHAVE_PTHREAD=1 -DHAVE_LIBZ=1 -DHAVE_LIBDL=1 -I. -I../../../../3rdparty/libprocess/3rdparty  -I../../../../3rdparty/libprocess/3rdparty/stout/include -Iprotobuf-2.5.0/src  -Igmock-1.7.0/gtest/include -Igmock-1.7.0/include -isystem boost-1.53.0 -Ipicojson-1.3.0 -DPICOJSON_USE_INT64 -D__STDC_FORMAT_MACROS -Iglog-0.3.3/src -I/usr/local/opt/openssl/include -I/usr/local/opt/libevent/include -I/usr/local/opt/subversion/include/subversion-1 -I/usr/include/apr-1 -I/usr/include/apr-1.0   -O2 -Wno-unused-local-typedef -std=c++11 -stdlib=libc++ -DGTEST_USE_OWN_TR1_TUPLE=1 -DGTEST_LANG_CXX11 -MT stout_tests-flags_tests.o -MD -MP -MF .deps/stout_tests-flags_tests.Tpo -c -o stout_tests-flags_tests.o `test -f 'stout/tests/flags_tests.cpp' || echo '../../../../3rdparty/libprocess/3rdparty/'`stout/tests/flags_tests.cpp