dfa: do not call nl_langinfo in !MBS_SUPPORT mode

* src/dfa.c (using_utf8) [!MBS_SUPPORT]: Remove erroneous "defined"
in cpp test for MBS_SUPPORT.  Since commit a163349d, MBS_SUPPORT is 0/1.
This error caused trouble only in the !MBS_SUPPORT case.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/dfa.c b/src/dfa.c
index 969a72ef..26ea4b51 100644
--- a/src/dfa.c
+++ b/src/dfa.c
@@ -628,7 +628,7 @@ using_utf8 (void)
   static int utf8 = -1;
   if (utf8 == -1)
     {
-#if defined HAVE_LANGINFO_CODESET && defined MBS_SUPPORT
+#if defined HAVE_LANGINFO_CODESET && MBS_SUPPORT
       utf8 = (STREQ (nl_langinfo (CODESET), "UTF-8"));
 #else
       utf8 = 0;