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 cc45e26..f333dad 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -5691,11 +5691,13 @@ start_function (struct c_declspecs *declspecs, struct c_declarator *declarator, /* Optionally warn of old-fashioned def with no previous prototype. */ if (warn_strict_prototypes + && old_decl != error_mark_node && TYPE_ARG_TYPES (TREE_TYPE (decl1)) == 0 && C_DECL_ISNT_PROTOTYPE (old_decl)) warning ("function declaration isn%'t a prototype"); /* Optionally warn of any global def with no previous prototype. */ else if (warn_missing_prototypes + && old_decl != error_mark_node && TREE_PUBLIC (decl1) && !MAIN_NAME_P (DECL_NAME (decl1)) && C_DECL_ISNT_PROTOTYPE (old_decl)) @@ -5703,7 +5705,9 @@ start_function (struct c_declspecs *declspecs, struct c_declarator *declarator, /* Optionally warn of any def with no previous prototype if the function has already been used. */ else if (warn_missing_prototypes - && old_decl != 0 && TREE_USED (old_decl) + && old_decl != 0 + && old_decl != error_mark_node + && TREE_USED (old_decl) && TYPE_ARG_TYPES (TREE_TYPE (old_decl)) == 0) warning ("%J%qD was used with no prototype before its definition", decl1, decl1); @@ -5716,7 +5720,9 @@ start_function (struct c_declspecs *declspecs, struct c_declarator *declarator, /* Optionally warn of any def with no previous declaration if the function has already been used. */ else if (warn_missing_declarations - && old_decl != 0 && TREE_USED (old_decl) + && old_decl != 0 + && old_decl != error_mark_node + && TREE_USED (old_decl) && C_DECL_IMPLICIT (old_decl)) warning ("%J%qD was used with no declaration before its definition", decl1, decl1); |