https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93641
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Iain D Sandoe <ia...@gcc.gnu.org>: https://gcc.gnu.org/g:c88ffcc6f4f46223c219014729f33f6cb9649928 commit r10-6561-gc88ffcc6f4f46223c219014729f33f6cb9649928 Author: Iain Sandoe <i...@sandoe.co.uk> Date: Mon Feb 10 20:29:30 2020 +0100 Darwin: -Wformat-diag fix (PR93641) The length used for the comparison for 'CFStringRef' was only comparing for 'CFString', potentially allowing mismatched identifiers. 2020-02-10 Iain Sandoe <i...@sandoe.co.uk> PR other/93641 * config/darwin-c.c (darwin_cfstring_ref_p): Fix up last argument of strncmp.