Add mutex for dealing with qr/\p{user-defined}/

This will be used in future commits

1 files changed, 1 insertions, 0 deletions

diff --git a/perl.c b/perl.c
index d82e1e720a..3c49f9650f 100644
--- a/perl.c
+++ b/perl.c
@@ -95,6 +95,7 @@ S_init_tls_and_interp(PerlInterpreter *my_perl)
         KEYWORD_PLUGIN_MUTEX_INIT;
 	HINTS_REFCNT_INIT;
         LOCALE_INIT;
+        USER_PROP_MUTEX_INIT;
 	MUTEX_INIT(&PL_dollarzero_mutex);
 	MUTEX_INIT(&PL_my_ctx_mutex);
 #  endif