add PL_signalhook to hook into signal dispatch

This is initially intended for threads::shared and shouldn't (yet)
be considered part of the public API.

1 files changed, 1 insertions, 0 deletions

diff --git a/sv.c b/sv.c
index cb85ca6def..c9e6f9e057 100644
--- a/sv.c
+++ b/sv.c
@@ -12451,6 +12451,7 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags,
     PL_unlockhook	= proto_perl->Iunlockhook;
     PL_threadhook	= proto_perl->Ithreadhook;
     PL_destroyhook	= proto_perl->Idestroyhook;
+    PL_signalhook	= proto_perl->Isignalhook;
 
 #ifdef THREADS_HAVE_PIDS
     PL_ppid		= proto_perl->Ippid;