classpath: Fix breakage caused by -Werror=implicit-fallthrough

classpath builds with -Wextra and, unless configured with
--disable-werror, -Werror.  Since GCC 7 added -Wimplicit-fallthrough=3
to -Wextra we need to make it not an error for code that doesn't use
__attribute__((fallthrough)) yet.

Signed-off-by: Daniel Santos <redacted>

diff --git a/libs/classpath/Makefile b/libs/classpath/Makefile
index 39a8dbcb7118aca70b5530e0b5cfb7e695ee6773..9eed414f80530fa8f1f9867d7f02d7dc7418f16c 100644 (file)
--- a/libs/classpath/Makefile
+++ b/libs/classpath/Makefile
@@ -50,6 +50,7 @@ define Download/antlr
 endef
 $(eval $(call Download,antlr))
 
+EXTRA_CFLAGS += -Wno-error=implicit-fallthrough
 CONFIGURE_ARGS += \
        --with-gmp="$(STAGING_DIR)/usr" \
        --without-x \