LoongArch: Include KBUILD_CPPFLAGS in CHECKFLAGS invocation

This is a port of commit 08f6554 ("mips: Include KBUILD_CPPFLAGS in CHECKFLAGS invocation") to arch/loongarch, for fixing cross-compilation of Linux/LoongArch with Clang, where previously the `--target` flag would no longer be present for the CHECKFLAGS cc invocation leading to build failure. Reported-by: Nathan Chancellor <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Link: ClangBuiltLinux#1787 (comment) Signed-off-by: WANG Xuerui <[email protected]> Signed-off-by: Huacai Chen <[email protected]>
sedwards · Jun 29, 2023 · 5ddc7a3 · 5ddc7a3
1 parent b89673a
commit 5ddc7a3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/arch/loongarch/Makefile b/arch/loongarch/Makefile
@@ -112,7 +112,7 @@ KBUILD_CFLAGS += -isystem $(shell $(CC) -print-file-name=include)
 KBUILD_LDFLAGS	+= -m $(ld-emul)
 
 ifdef CONFIG_LOONGARCH
-CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
+CHECKFLAGS += $(shell $(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
 	grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \
 	sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
 endif