calls.c (expand_call): Check warn_inline before complaining about not being able to inline a fn...

        * calls.c (expand_call): Check warn_inline before complaining about
        not being able to inline a fn declared inline.
        * flags.h (warn_inline): Add extern decl.

From-SVN: r4171

gcc/calls.c

@@ -562,7 +562,8 @@ expand_call (exp, target, ignore)
 
 		 Use abstraction instead of setting TREE_ADDRESSABLE
 		 directly.  */
-	      if (DECL_INLINE (fndecl) && extra_warnings && !flag_no_inline)
+	      if (DECL_INLINE (fndecl) && extra_warnings && warn_inline
+		  && !flag_no_inline)
 		warning_with_decl (fndecl, "can't inline call to `%s' which was declared inline");
 	      mark_addressable (fndecl);
 	    }

gcc/flags.h

@@ -73,6 +73,10 @@ extern int extra_warnings;
 
 extern int warn_unused;
 
+/* Nonzero means warn if inline function is too large.  */
+
+extern int warn_inline;
+
 /* Nonzero to warn about variables used before they are initialized.  */
 
 extern int warn_uninitialized;