diff options
Diffstat (limited to 'gcc/c-decl.c')
| -rw-r--r-- | gcc/c-decl.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c index bcd414e..97ae2ba 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -5837,12 +5837,18 @@ start_function (declspecs, declarator, prefix_attributes, attributes) /* Optionally warn of old-fashioned def with no previous prototype. */ if (warn_strict_prototypes && TYPE_ARG_TYPES (TREE_TYPE (decl1)) == 0 - && !(old_decl != 0 && TYPE_ARG_TYPES (TREE_TYPE (old_decl)) != 0)) + && !(old_decl != 0 + && (TYPE_ARG_TYPES (TREE_TYPE (old_decl)) != 0 + || (DECL_BUILT_IN (old_decl) + && ! C_DECL_ANTICIPATED (old_decl))))) warning ("function declaration isn't a prototype"); /* Optionally warn of any global def with no previous prototype. */ else if (warn_missing_prototypes && TREE_PUBLIC (decl1) - && !(old_decl != 0 && TYPE_ARG_TYPES (TREE_TYPE (old_decl)) != 0) + && !(old_decl != 0 + && (TYPE_ARG_TYPES (TREE_TYPE (old_decl)) != 0 + || (DECL_BUILT_IN (old_decl) + && ! C_DECL_ANTICIPATED (old_decl)))) && ! MAIN_NAME_P (DECL_NAME (decl1))) warning_with_decl (decl1, "no previous prototype for `%s'"); /* Optionally warn of any def with no previous prototype |