Nathan Chancellor <nathan@xxxxxxxxxx> writes: > When clang's -Qunused-arguments is dropped from KBUILD_CPPFLAGS, it > warns while building objects in the purgatory folder: > > clang-16: error: argument unused during compilation: '-MD' [-Werror,-Wunused-command-line-argument] > > '-MMD' is always passed to the preprocessor via c_flags, even when > KBUILD_CFLAGS is overridden in a folder, so clang complains the addition > of '-MD' will be unused. Remove '-MD' to clear up this warning, as it is > unnecessary with '-MMD'. > > Additionally, '-c' is also unnecessary, remove it while in the area. > > Signed-off-by: Nathan Chancellor <nathan@xxxxxxxxxx> Reviewed-by: Sven Schnelle <svens@xxxxxxxxxxxxx>