https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101429
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jonathan Wakely <r...@gcc.gnu.org>: https://gcc.gnu.org/g:92936be47461b99d624b6a90a745f6cdc60d3e51 commit r12-4084-g92936be47461b99d624b6a90a745f6cdc60d3e51 Author: Jonathan Wakely <jwak...@redhat.com> Date: Fri Oct 1 15:55:57 2021 +0100 libstdc++: Restore printing of assertion messages [PR102100] My changes for PR 101429 broke the _-replacement_assert function, because we now always just abort without printing anything. That's because I added checks for _GLIBCXX_HOSTED and _GLIBCXX_VERBOSE, but the checks are done before those get defined. This adds a new macro which is set by the sed command in include/Makefile, once the HOSTED and VERBOSE macros have been set by the configure script. libstdc++-v3/ChangeLog: PR libstdc++/102100 * include/Makefile.am (c++config.h): Define _GLIBCXX_VERBOSE_ASSERT based on configure output. * include/Makefile.in: Regenerate. * include/bits/c++config: Fix condition for verbose assertions.