rarest is only used under -DDEBUGGING

This was warning under gcc 4.7.2

1 files changed, 2 insertions, 2 deletions

diff --git a/util.c b/util.c
index 01f441b25e..42c4f6686a 100644
--- a/util.c
+++ b/util.c
@@ -521,9 +521,9 @@ Perl_fbm_compile(pTHX_ SV *sv, U32 flags)
     const U8 *s;
     STRLEN i;
     STRLEN len;
-    STRLEN rarest = 0;
     U32 frequency = 256;
     MAGIC *mg;
+    PERL_DEB( STRLEN rarest = 0 );
 
     PERL_ARGS_ASSERT_FBM_COMPILE;
 
@@ -591,7 +591,7 @@ Perl_fbm_compile(pTHX_ SV *sv, U32 flags)
     s = (const unsigned char*)(SvPVX_const(sv));	/* deeper magic */
     for (i = 0; i < len; i++) {
 	if (PL_freq[s[i]] < frequency) {
-	    rarest = i;
+	    PERL_DEB( rarest = i );
 	    frequency = PL_freq[s[i]];
 	}
     }