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-rw-r--r--thrdvar.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/thrdvar.h b/thrdvar.h
index e12e85f317..18c426ce2e 100644
--- a/thrdvar.h
+++ b/thrdvar.h
@@ -196,7 +196,7 @@ PERLVAR(Treg_oldsaved, char*) /* old saved substr during match */
PERLVAR(Treg_oldsavedlen, STRLEN) /* old length of saved substr during match */
PERLVAR(Treg_maxiter, I32) /* max wait until caching pos */
PERLVAR(Treg_leftiter, I32) /* wait until caching pos */
-PERLVARI(Treg_poscache, char *, Nullch) /* cache of pos of WHILEM */
+PERLVARI(Treg_poscache, char *, NULL) /* cache of pos of WHILEM */
PERLVAR(Treg_poscache_size, STRLEN) /* size of pos cache of WHILEM */
PERLVARI(Tpeepp, peep_t, MEMBER_TO_FPTR(Perl_peep))