* c-lex.c (readescape): Warn about 'x', but do not reject it.

From-SVN: r32005

gcc/ChangeLog

+2000-02-16  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>
+
+	* c-lex.c (readescape): Warn about '\x', but do not reject it.
+
 2000-02-15  Jonathan Larmour  <jlarmour@redhat.co.uk>
 
 	* gcc.c (default_compilers): Add new __GNUC_PATCHLEVEL__ define

gcc/c-lex.c

@@ -942,7 +942,10 @@ readescape (ignore_ptr)
 	  nonnull = 1;
 	}
       if (! nonnull)
-	error ("\\x used with no following hex digits");
+	{
+	  warning ("\\x used with no following hex digits");
+	  return 'x';
+	}
       else if (count == 0)
 	/* Digits are all 0's.  Ok.  */
 	;