eliminate PERL_STACK_OVERFLOW_CHECK

This macro is defined as NOOP on all platforms except for MacOS classic,
where it was added as a hook to allow for OSes that have a small CPU
stack size. Since pp_entersub et al don't actually use the CPU stack,
this hook looks misconceived from the beginning. So remove all
uses of it in the core.

1 files changed, 1 insertions, 3 deletions

diff --git a/pp_sys.c b/pp_sys.c
index ea99011594..3be4be3b76 100644
--- a/pp_sys.c
+++ b/pp_sys.c
@@ -1391,10 +1391,8 @@ S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
 
     PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
     PUSHFORMAT(cx, retop);
-    if (CvDEPTH(cv) >= 2) {
-	PERL_STACK_OVERFLOW_CHECK();
+    if (CvDEPTH(cv) >= 2)
 	pad_push(CvPADLIST(cv), CvDEPTH(cv));
-    }
     PAD_SET_CUR_NOSAVE(CvPADLIST(cv), CvDEPTH(cv));
 
     setdefout(gv);	    /* locally select filehandle so $% et al work */