re PR c/7425 (deprecated attribute doesn't merge with multiple declarations)

	PR c/7425
	* c-decl.c (merge_decls): Merge TREE_DEPRECATED.

cp:
	* decl.c (duplicate_decls): Merge TREE_DEPRECATED.

testsuite:
	* gcc.dg/deprecated-3.c, g++.dg/warn/deprecated-2.C: New tests.

From-SVN: r88303

gcc/ChangeLog

+2004-09-29  Joseph S. Myers  <jsm@polyomino.org.uk>
+
+	PR c/7425
+	* c-decl.c (merge_decls): Merge TREE_DEPRECATED.
+
 2004-09-29  Eric Christopher  <echristo@redhat.com>
 
 	* fold-const.c (tree_swap_operands_p): Remove duplicated code.

gcc/c-decl.c

@@ -1586,6 +1586,10 @@ merge_decls (tree newdecl, tree olddecl, tree newtype, tree oldtype)
 	make_var_volatile (newdecl);
     }
 
+  /* Merge deprecatedness.  */
+  if (TREE_DEPRECATED (newdecl))
+    TREE_DEPRECATED (olddecl) = 1;
+
   /* Keep source location of definition rather than declaration.  */
   if (DECL_INITIAL (newdecl) == 0 && DECL_INITIAL (olddecl) != 0)
     DECL_SOURCE_LOCATION (newdecl) = DECL_SOURCE_LOCATION (olddecl);

gcc/cp/ChangeLog

+2004-09-29  Joseph S. Myers  <jsm@polyomino.org.uk>
+
+	* decl.c (duplicate_decls): Merge TREE_DEPRECATED.
+
 2004-09-29  Jason Merrill  <jason@redhat.com>
 
 	PR tree-optimization/17697

gcc/cp/decl.c

@@ -1722,6 +1722,10 @@ duplicate_decls (tree newdecl, tree olddecl)
       if (TREE_NOTHROW (newdecl))
 	TREE_NOTHROW (olddecl) = 1;
 
+      /* Merge deprecatedness.  */
+      if (TREE_DEPRECATED (newdecl))
+	TREE_DEPRECATED (olddecl) = 1;
+
       /* Merge the initialization information.  */
       if (DECL_INITIAL (newdecl) == NULL_TREE
 	  && DECL_INITIAL (olddecl) != NULL_TREE)

gcc/testsuite/ChangeLog

+2004-09-29  Joseph S. Myers  <jsm@polyomino.org.uk>
+
+	PR c/7425
+	* gcc.dg/deprecated-3.c, g++.dg/warn/deprecated-2.C: New tests.
+
 2004-09-29  Jakub Jelinek  <jakub@redhat.com>
 
 	* gcc.c-torture/execute/stdarg-1.c: New test.

gcc/testsuite/g++.dg/warn/deprecated-2.C

+/* Test __attribute__((deprecated)).  Test merging with multiple
+   declarations.  Bug 7425 (C++ version).  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+void func(void);
+void func(void) __attribute__((deprecated));
+
+void f(void) {
+  func(); /* { dg-warning "'func' is deprecated" } */
+}

gcc/testsuite/gcc.dg/deprecated-3.c

+/* Test __attribute__((deprecated)).  Test merging with multiple
+   declarations.  Bug 7425.  */
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+void func(void);
+void func(void) __attribute__((deprecated));
+
+void f(void) {
+  func(); /* { dg-warning "'func' is deprecated" } */
+}