https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90770
--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Thu Jun 20 14:17:57 2019 New Revision: 272509 URL: https://gcc.gnu.org/viewcvs?rev=272509&root=gcc&view=rev Log: Skip libstdc++ debug build in early bootstrap stages As mentioned in PR 90770, this is a patch that Debian have been carrying for some time. The additional unoptimized copies of libstdc++ libs that get built during each stage are never going to be used, so don't bother building them. For a profiled bootstrap this means we won't train the compiler on the unoptimized library code with assertions enabled, but that doesn't seem like a big problem, as the same code has already been compiled once for the main libstdc++ library. * acinclude.m4 (GLIBCXX_ENABLE_DEBUG): Only do debug build for final stage of bootstrap. * configure: Regenerate. Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/acinclude.m4 trunk/libstdc++-v3/configure
