- var make_flags = self.toolcontext.opt_make_flags.value
- if make_flags == null then
- self.toolcontext.opt_make_flags.value = emcc_make_flags
- else make_flags.append emcc_make_flags
+ var make_flags = self.toolcontext.opt_make_flags.value or else ""
+ make_flags += emcc_make_flags
+ self.toolcontext.opt_make_flags.value = make_flags