re PR c/63626 (Warning "inline function declared but never defined" output twice)

	PR c/63626
	* c-decl.c (pop_scope): Don't print warning in external_scope.

	* gcc.dg/pr63626.c: New test.

From-SVN: r216595

gcc/c/ChangeLog

+2014-10-23  Marek Polacek  <polacek@redhat.com>
+
+	PR c/63626
+	* c-decl.c (pop_scope): Don't print warning in external_scope.
+
 2014-10-19  Marek Polacek  <polacek@redhat.com>
 
 	PR c/63567

gcc/c/c-decl.c

@@ -1182,7 +1182,8 @@ pop_scope (void)
 		 with an inline function specifier ... shall also be defined
 		 in the same translation unit."  */
 	      if (!flag_gnu89_inline
-		  && !lookup_attribute ("gnu_inline", DECL_ATTRIBUTES (p)))
+		  && !lookup_attribute ("gnu_inline", DECL_ATTRIBUTES (p))
+		  && scope != external_scope)
 		pedwarn (input_location, 0,
 			 "inline function %q+D declared but never defined", p);
 	      DECL_EXTERNAL (p) = 1;

gcc/testsuite/ChangeLog

 2014-10-23  Marek Polacek  <polacek@redhat.com>
 
+	PR c/63626
+	* gcc.dg/pr63626.c: New test.
+
+2014-10-23  Marek Polacek  <polacek@redhat.com>
+
 	* c-c++-common/ubsan/undefined-2.c: New test.
 
 2014-10-10  Kirill Yukhin  <kirill.yukhin@intel.com>

gcc/testsuite/gcc.dg/pr63626.c

+/* PR c/63626 */
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+/* Test that we don't output the warning twice.  */
+
+inline int foo (void); /* { dg-bogus "inline function.*inline function" } */
+/* { dg-warning "inline function .foo. declared but never defined" "" { target *-*-* } 7 } */