https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119586
--- Comment #8 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jerry DeLisle <jvdeli...@gcc.gnu.org>: https://gcc.gnu.org/g:e2bf0b3910de7e65363435f0a7fa606e2448a677 commit r16-939-ge2bf0b3910de7e65363435f0a7fa606e2448a677 Author: Jerry DeLisle <jvdeli...@gcc.gnu.org> Date: Wed May 28 07:56:12 2025 -0700 Fortran: Adjust handling of optional comma in FORMAT. This change adjusts the error messages for optional commas in format strings to give a warning at compile time unless -std=legacy is used. This is more consistant with the runtime library. A missing comma separator should not be encouraged as it is non-standard fortran. PR fortran/119586 gcc/fortran/ChangeLog: * io.cc: Set missing comma error checks to STD_STD_LEGACY. gcc/testsuite/ChangeLog: * gfortran.dg/comma_format_extension_1.f: Update dg-options to "-std=legacy". * gfortran.dg/comma_format_extension_3.f: Likewise. * gfortran.dg/continuation_13.f90: Likewise.