https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60858
Ed Smith-Rowland <3dw4rd at verizon dot net> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |3dw4rd at verizon dot net --- Comment #3 from Ed Smith-Rowland <3dw4rd at verizon dot net> --- You send a message containing a patch (which should include a test case) an explanation for the change (explanation of method if needed, motivation/rationale for addition) and a ChangeLog entry to gcc-patc...@gcc.gnu.org. You'll need Copyright paperwork too. Basically, see https://gcc.gnu.org/contribute.html. Having said that, at least C++ has standard language specifying 'int' for multi-character char constants. So I think you'll need to enable this with a flag, -flong-long-multicharacter-const, maybe.