S_setup_longest(): SvTAIL() used where always 0

SvTAIL() isn't set on an SV until fbm_compile() has been called,
so there's no point testing it before calling fbm_compile()

1 files changed, 5 insertions, 1 deletions

diff --git a/regcomp.c b/regcomp.c
index e9c7972e0c..ac664326f0 100644
--- a/regcomp.c
+++ b/regcomp.c
@@ -6677,7 +6677,11 @@ S_setup_longest(pTHX_ RExC_state_t *pRExC_state, SV* sv_longest,
         calculate it.*/
     ml = minlen ? *(minlen) : (SSize_t)longest_length;
     *rx_end_shift = ml - offset
-        - longest_length + (SvTAIL(sv_longest) != 0)
+        - longest_length
+            /* XXX SvTAIL is always false here - did you mean FBMcf_TAIL
+             * intead? - DAPM
+            + (SvTAIL(sv_longest) != 0)
+            */
         + lookbehind;
 
     t = (eol/* Can't have SEOL and MULTI */