Merge "Add default -Wimplicit-fallthrough."

am: 230e4c77a5 Change-Id: I15e7cbf40722360d91cafc196e4a9a908338df56
2018-10-08 18:02:54 -07:00
parent e7d88f198b 230e4c77a5
commit cfba3658f4
1 changed files with 4 additions and 0 deletions
--- a/cc/config/clang.go
+++ b/cc/config/clang.go
@@ -103,6 +103,10 @@ func init() {
 	pctx.StaticVariable("ClangExtraCflags", strings.Join([]string{
 		"-D__compiler_offsetof=__builtin_offsetof",

+		// Make implicit fallthrough an error in the future.
+		"-Wimplicit-fallthrough",
+		"-Wno-error=implicit-fallthrough",
+
 		// Help catch common 32/64-bit errors.
 		"-Werror=int-conversion",