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| author | Zack Weinberg <zack@gcc.gnu.org> | 2004-07-25 03:58:50 +0000 |
|---|---|---|
| committer | Zack Weinberg <zack@gcc.gnu.org> | 2004-07-25 03:58:50 +0000 |
| commit | c5e36c09e5df095a140f98e064d14759a09e1108 (patch) | |
| tree | e08d5c38fdbe7459662ce1f4849c678ef281f3ec /gcc/c-decl.c | |
| parent | 9d55a9660d0e067d4265d3b82af7f25fbb8d018e (diff) | |
| download | gcc-c5e36c09e5df095a140f98e064d14759a09e1108.zip gcc-c5e36c09e5df095a140f98e064d14759a09e1108.tar.gz gcc-c5e36c09e5df095a140f98e064d14759a09e1108.tar.bz2 | |
Zack Weinberg <zack@codesourcery.com
2004-07-24 Alexander Kabaev <kan@freebsd.org>
Zack Weinberg <zack@codesourcery.com
PR 16684
* c-decl.c (diagnose_mismatched_decls): Don't issue a
redundant-declaration warning the first time a builtin is
declared explicitly.
testsuite:
* gcc.dg/Wredundant-decls-1.c: New test case.
From-SVN: r85140
Diffstat (limited to 'gcc/c-decl.c')
| -rw-r--r-- | gcc/c-decl.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c index 65fd24d..41e7df0 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -1444,6 +1444,11 @@ diagnose_mismatched_decls (tree newdecl, tree olddecl, definition. */ && !(TREE_CODE (newdecl) == FUNCTION_DECL && DECL_INITIAL (newdecl) && !DECL_INITIAL (olddecl)) + /* Don't warn about redundant redeclarations of builtins. */ + && !(TREE_CODE (newdecl) == FUNCTION_DECL + && !DECL_BUILT_IN (newdecl) + && DECL_BUILT_IN (olddecl) + && !C_DECL_DECLARED_BUILTIN (olddecl)) /* Don't warn about an extern followed by a definition. */ && !(DECL_EXTERNAL (olddecl) && !DECL_EXTERNAL (newdecl)) /* Don't warn about forward parameter decls. */ |