On 07/10/2017 10:29 AM, George R Goffe via gcc-bugs wrote:
../../../../gcc/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc: In function ‘int __sanitizer::TracerThread(void*)’: ../../../../gcc/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc:276:22: error: aggregate ‘sigaltstack handler_stack’ has incomplete type and cannot be defined struct sigaltstack handler_stack;
If you are doing a build using glibc mainline, then this is FSF GCC bug 81066.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81066 Jim