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authorrth <rth@138bc75d-0d04-0410-961f-82ee72b054a4>2002-04-03 22:39:51 +0000
committerrth <rth@138bc75d-0d04-0410-961f-82ee72b054a4>2002-04-03 22:39:51 +0000
commit8d58a5a7900f5543f186d868d265d75be0f09cdc (patch)
treefd1d1d700f54be42454fcc88e95011014edff3f4 /gcc/c-lang.c
parentd1f6c8f2a0903dd9e0f7e63a40afb5073829dca3 (diff)
downloadgcc-8d58a5a7900f5543f186d868d265d75be0f09cdc.tar.gz
PR opt/4330
* langhooks.h (lang_hooks.decls.warn_unused_global): New. * toplev.c (check_global_declarations): Use it. * langhooks-def.h (lhd_warn_unused_global_decl): Declare. (LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL): New. (LANG_HOOKS_DECLS): Add it. * langhooks.c (lhd_warn_unused_global_decl): New. * c-decl.c (LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL): New. * c-objc-common.c (c_warn_unused_global_decl): New. * c-tree.h (c_warn_unused_global_decl): Declare. * objc/objc-lang.c (LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL): New. * cp-lang.c (cxx_warn_unused_global_decl): New. (LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL): New. * g++.dg/warn/Wunused-2.C: New. * gcc.dg/unused-4.c: New. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@51818 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/c-lang.c')
-rw-r--r--gcc/c-lang.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/c-lang.c b/gcc/c-lang.c
index 278a252bffd..f11dce4a892 100644
--- a/gcc/c-lang.c
+++ b/gcc/c-lang.c
@@ -66,6 +66,8 @@ static void c_post_options PARAMS ((void));
#define LANG_HOOKS_UNSAFE_FOR_REEVAL c_common_unsafe_for_reeval
#undef LANG_HOOKS_STATICP
#define LANG_HOOKS_STATICP c_staticp
+#undef LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL
+#define LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL c_warn_unused_global_decl
#undef LANG_HOOKS_PRINT_IDENTIFIER
#define LANG_HOOKS_PRINT_IDENTIFIER c_print_identifier
#undef LANG_HOOKS_SET_YYDEBUG