Language-specific add_compile_options?

Actually, looks like I got something wrong with the generator expression. Does anything look off with my code above?

Problems were encountered while collecting compiler information:
	gcc: error: $<0:-fopt-info-vec: No such file or directory
	gcc: error: $<1:-fopt-info-vec: No such file or directory
	cc1: error: unrecognized command line option '-fopt-info-loop>'
	g++: error: $<1:-fopt-info-vec: No such file or directory
	g++: error: $<0:-fopt-info-vec: No such file or directory
	cc1plus: error: unrecognized command line option '-fopt-info-loop>'