https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66415
--- Comment #11 from Andreas Schwab <sch...@linux-m68k.org> --- FAIL: gcc.dg/cpp/pr66415-1.c expected multiline pattern lines 11-12 not found: "\s*__builtin_printf \("xxxxxxxxxxxxxxxxx%dxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"\);.*\n ~\^\n" FAIL: gcc.dg/cpp/pr66415-1.c (test for excess errors) Excess errors: __builtin_printf ("xxxxxxxxxxxxxxxxx%dxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"); /* { dg-warning "71:format" } */ ~^ There are only 68 spaces before '~'.