liboconfig: really fix lex warnings

Flex has two options to disable input and unput.
Turn them on.

diff --git a/src/liboconfig/scanner.l b/src/liboconfig/scanner.l
index 6294ae59b82e7704e7e02a70db6bd2fb73e4bcf2..e38cf3039f8d80c336baabc9afe1a45f755f36bb 100644 (file)
--- a/src/liboconfig/scanner.l
+++ b/src/liboconfig/scanner.l
@@ -18,12 +18,6 @@
  */
 
 %{
-/* lex and yacc do some weird stuff, so turn off some warnings. */
-#if defined(__clang__)
-# pragma clang diagnostic ignored "-Wunused-function"
-# pragma clang diagnostic ignored "-Wunneeded-internal-declaration"
-#endif
-
 #include <stdlib.h>
 #include "oconfig.h"
 #include "aux_types.h"
@@ -47,6 +41,8 @@ static void ml_append (char *);
 %}
 %option yylineno
 %option noyywrap
+%option noinput
+%option nounput
 %x ML
 WHITE_SPACE [\ \t\b]
 NON_WHITE_SPACE [^\ \t\b]