Hi, I spotted case ext/headers.cc failed on arm-none-eabi with below information:
In file included from /home/build/work/gcc-build/arm-none-eabi/armv7-m/libstdc++-v3/include/arm-none-eabi/bits/gthr.h:148:0, from /home/build/work/gcc-build/arm-none-eabi/armv7-m/libstdc++-v3/include/ext/atomicity.h:33, from /home/build/work/src/gcc/libstdc++-v3/testsuite/ext/headers.cc:28: /home/build/work/gcc-build/arm-none-eabi/armv7-m/libstdc++-v3/include/arm-none-eabi/bits/gthr-default.h:37:30: warning: non-static data member initializers only available with -std=c++11 or -std=gnu++11 [enabled by default] #define __GTHREAD_MUTEX_INIT 0 ^ /home/build/work/gcc-build/arm-none-eabi/armv7-m/libstdc++-v3/include/arm-none-eabi/bits/gthr-default.h:37:30: warning: non-static data member initializers only available with -std=c++11 or -std=gnu++11 [enabled by default] #define __GTHREAD_MUTEX_INIT 0 ^ output is: In file included from /home/build/work/gcc-build/arm-none-eabi/armv7-m/libstdc++-v3/include/arm-none-eabi/bits/gthr.h:148:0, from /home/build/work/gcc-build/arm-none-eabi/armv7-m/libstdc++-v3/include/ext/atomicity.h:33, from /home/build/work/src/gcc/libstdc++-v3/testsuite/ext/headers.cc:28: /home/build/work/gcc-build/arm-none-eabi/armv7-m/libstdc++-v3/include/arm-none-eabi/bits/gthr-default.h:37:30: warning: non-static data member initializers only available with -std=c++11 or -std=gnu++11 [enabled by default] #define __GTHREAD_MUTEX_INIT 0 ^ /home/build/work/gcc-build/arm-none-eabi/armv7-m/libstdc++-v3/include/arm-none-eabi/bits/gthr-default.h:37:30: warning: non-static data member initializers only available with -std=c++11 or -std=gnu++11 [enabled by default] #define __GTHREAD_MUTEX_INIT 0 ^ FAIL: ext/headers.cc (test for excess errors) Excess errors: /home/build/work/gcc-build/arm-none-eabi/armv7-m/libstdc++-v3/include/arm-none-eabi/bits/gthr-default.h:37:30: warning: non-static data member initializers only available with -std=c++11 or -std=gnu++11 [enabled by default] /home/build/work/gcc-build/arm-none-eabi/armv7-m/libstdc++-v3/include/arm-none-eabi/bits/gthr-default.h:37:30: warning: non-static data member initializers only available with -std=c++11 or -std=gnu++11 [enabled by default] The cases failed both on trunk and 4.8, but ok for 4.7. Any ideas? Thanks. -- Best Regards.