Implement -Wimplicit-fallthrough.
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r240485
diff --git a/libcpp/include/cpplib.h b/libcpp/include/cpplib.h
index cfc6ccd..6352ac5 100644
--- a/libcpp/include/cpplib.h
+++ b/libcpp/include/cpplib.h
@@ -185,7 +185,8 @@
#define STRINGIFY_ARG (1 << 2) /* If macro argument to be stringified. */
#define PASTE_LEFT (1 << 3) /* If on LHS of a ## operator. */
#define NAMED_OP (1 << 4) /* C++ named operators. */
-#define NO_EXPAND (1 << 5) /* Do not macro-expand this token. */
+#define PREV_FALLTHROUGH (1 << 5) /* On a token preceeded by FALLTHROUGH
+ comment. */
#define BOL (1 << 6) /* Token at beginning of line. */
#define PURE_ZERO (1 << 7) /* Single 0 digit, used by the C++ frontend,
set in c-lex.c. */
@@ -193,6 +194,7 @@
#define SP_PREV_WHITE (1 << 9) /* If whitespace before a ##
operator, or before this token
after a # operator. */
+#define NO_EXPAND (1 << 10) /* Do not macro-expand this token. */
/* Specify which field, if any, of the cpp_token union is used. */