[kbuild-all] Re: [PATCH] Makefile: Improve compressed debug info support detection

On Wed, Jun 10, 2020 at 07:30:46PM -0400, Arvind Sankar wrote: > On Wed, Jun 10, 2020 at 02:27:55PM -0700, Nick Desaulniers wrote: > > No, as-option does invoke the assembler. The problem here is that with > -Wa, the option is only seen by the assembler, not the gcc driver. So it > will succeed because the assembler supports it, but it will not test > whether the gcc driver also supports it. > I think in theory another way to fix it is to just use -Wa even for CFLAGS, assuming the compiler itself doesn't have to do anything with the option and it's purely an assembler thing. Then you'd just do the as and ld tests.