Generate an error when redeclaring enum entries.

[r18916]

diff --git a/parser.c b/parser.c
index 856c580..c7e1ae9 100644 (file)
--- a/parser.c
+++ b/parser.c
@@ -2823,8 +2823,13 @@ static declaration_t *internal_record_declaration(
                                errorf(previous_declaration->source_position,
                                       "previous declaration of '%Y' was here", symbol);
                        } else {
-                               unsigned old_storage_class
-                                       = previous_declaration->storage_class;
+                               unsigned old_storage_class = previous_declaration->storage_class;
+                               if (old_storage_class == STORAGE_CLASS_ENUM_ENTRY) {
+                                       errorf(declaration->source_position, "redeclaration of enum entry '%Y'", symbol);
+                                       errorf(previous_declaration->source_position, "previous declaration of '%Y' was here", symbol);
+                                       return previous_declaration;
+                               }
+
                                unsigned new_storage_class = declaration->storage_class;
 
                                if(is_type_incomplete(prev_type)) {