1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/cp/lex.c b/gcc/cp/lex.c
index 593f312..f0c6389 100644
--- a/gcc/cp/lex.c
+++ b/gcc/cp/lex.c
@@ -685,6 +685,8 @@ cxx_init (filename)
   interface_unknown = 1;
 
   filename = c_common_init (filename);
+  if (filename == NULL)
+    return NULL;
 
   init_cp_pragma ();