https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105671
--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-12 branch has been updated by Jonathan Wakely <r...@gcc.gnu.org>: https://gcc.gnu.org/g:d47c4f0f1da0aa84097878b82e100d08deb6d950 commit r12-8465-gd47c4f0f1da0aa84097878b82e100d08deb6d950 Author: Jonathan Wakely <jwak...@redhat.com> Date: Fri May 27 12:43:18 2022 +0100 libstdc++: Mark non-exported function always_inline [PR105671] This new function was added for gcc 11.1 but is not exported from the shared library. Depending on inlining decisions, its callers might get inlined but an external definition be needed for this function. That then fails to link. Since we can't add the export to the gcc-11 release branch now, mark it always_inline. We can consider exporting it for gcc-13 if/when we bump the shared library version (and maybe also for gcc-12 which is currently at the same version as trunk). For now, the attribute will solve the problem on all affected branches. The function is small enough that force-inlining it shouldn't cause problems. libstdc++-v3/ChangeLog: PR libstdc++/105671 * include/std/sstream (basic_stringbuf::_M_high_mark): Add always_inline attribute. (cherry picked from commit de57440858591a88e8fd7ba2505ca54546c86021)
