commit 4856affe9e08a3562792d6cde217cd06c1ef93da
author Jerry DeLisle <jvdelisle@gcc.gnu.org> Wed May 28 07:56:12 2025 -0700
committer Jerry DeLisle <jvdelisle@gcc.gnu.org> Sun Jun 01 18:13:24 2025 -0700
tree fcc8495fe94dcf8dea3de48c39d6e9eb6b0d8e0e
parent 9e734259dc4b15982727697d88d59170e71de53d

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/119856

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.

(cherry picked from commit e2bf0b3910de7e65363435f0a7fa606e2448a677)