c-typeck.c (c_expand_start_case): Don't warn for long switch in system headers.

        * c-typeck.c (c_expand_start_case): Don't warn for long switch
        in system headers.

From-SVN: r31020

gcc/ChangeLog

+Sat Dec 18 20:30:15 1999  Richard Henderson  <rth@cygnus.com>
+
+	* c-typeck.c (c_expand_start_case): Don't warn for long switch
+	in system headers.
+
 Sat Dec 18 16:28:43 1999  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 
 	* alias.c: Minor reformatting.

gcc/c-typeck.c

@@ -6714,6 +6714,7 @@ c_expand_start_case (exp)
       type = TYPE_MAIN_VARIANT (TREE_TYPE (exp));
 
       if (warn_traditional
+	  && ! in_system_header
 	  && (type == long_integer_type_node
 	      || type == long_unsigned_type_node))
 	pedwarn ("`long' switch expression not converted to `int' in ANSI C");