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Diffstat (limited to 'gcc/c/c-decl.c')
| -rw-r--r-- | gcc/c/c-decl.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/c/c-decl.c b/gcc/c/c-decl.c index ce8406a..4a0e090 100644 --- a/gcc/c/c-decl.c +++ b/gcc/c/c-decl.c @@ -8328,6 +8328,12 @@ start_function (struct c_declspecs *declspecs, struct c_declarator *declarator, && comptypes (TREE_TYPE (TREE_TYPE (decl1)), TREE_TYPE (TREE_TYPE (old_decl)))) { + if (stdarg_p (TREE_TYPE (old_decl))) + { + warning_at (loc, 0, "%q+D defined as variadic function " + "without prototype", decl1); + locate_old_decl (old_decl); + } TREE_TYPE (decl1) = composite_type (TREE_TYPE (old_decl), TREE_TYPE (decl1)); current_function_prototype_locus = DECL_SOURCE_LOCATION (old_decl); |