c-lex.c (real_yylex): Don't warn about long long constants if we're allowing long long

        * c-lex.c (real_yylex): Don't warn about long long constants if
        we're allowing long long

From-SVN: r22370

gcc/ChangeLog

+Wed Sep  9 23:00:48 1998  Nathan Sidwell  <nathan@acm.org>
+
+	* c-lex.c (real_yylex): Don't warn about long long constants if 
+	we're allowing long long
+
 Wed Sep  9 21:58:41 1998  Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>
 
 	* except.h (current_function_eh_stub_label): Declare.

gcc/c-lex.c

@@ -1646,7 +1646,7 @@ yylex ()
 		      {
 			if (spec_long_long)
 			  error ("three `l's in integer constant");
-			else if (pedantic)
+			else if (pedantic && ! in_system_header && warn_long_long)
 			  pedwarn ("ANSI C forbids long long integer constants");
 			spec_long_long = 1;
 		      }