There are many errors like 'error: this statement may fall through'. But the logic is right. So add the flag Wimplicit-fallthrough=0 to disable the error messages. The method I use is from https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html #index-Wimplicit-fallthrough-375 Signed-off-by: Xiao Ni <xni@xxxxxxxxxx> --- Makefile | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Makefile b/Makefile index a6f464c..d1a6ac4 100644 --- a/Makefile +++ b/Makefile @@ -48,6 +48,11 @@ ifdef WARN_UNUSED CWFLAGS += -Wp,-D_FORTIFY_SOURCE=2 -O3 endif +FALLTHROUGH := $(shell gcc -v --help 2>&1 | grep "implicit-fallthrough" | wc -l) +ifneq "$(FALLTHROUGH)" "0" +CWFLAGS += -Wimplicit-fallthrough=0 +endif + ifdef DEBIAN CPPFLAGS += -DDEBIAN endif -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
