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, 6 deletions

diff --git a/perl.h b/perl.h
index 46906aff48..2117e4943e 100644
--- a/perl.h
+++ b/perl.h
@@ -6354,13 +6354,8 @@ expression, but with an empty argument list, like this:
 #define PERL_SCRIPT_MODE "r"
 #endif
 
-/*
- * Some operating systems are stingy with stack allocation,
- * so perl may have to guard against stack overflow.
- */
-#ifndef PERL_STACK_OVERFLOW_CHECK
+/* not used. Kept as a NOOP for backcompat */
 #define PERL_STACK_OVERFLOW_CHECK()  NOOP
-#endif
 
 /*
  * Some nonpreemptive operating systems find it convenient to