1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/cp/lex.c b/gcc/cp/lex.c
index e69793e7f35..b1da04c7df7 100644
--- a/gcc/cp/lex.c
+++ b/gcc/cp/lex.c
@@ -179,6 +179,9 @@ init_reswords (void)
   /* The Objective-C keywords are all context-dependent.  */
   mask |= D_OBJC;
 
+  /* UPC constructs are not supported in C++.  */
+  mask |= D_UPC;
+
   ridpointers = ggc_cleared_vec_alloc<tree> ((int) RID_MAX);
   for (i = 0; i < num_c_common_reswords; i++)
     {