Document the purpose of PL_psig_ptr and PL_psig_name.

diff --git a/intrpvar.h b/intrpvar.h
index 4fa3c0d..504a056 100644 (file)
--- a/intrpvar.h
+++ b/intrpvar.h
@@ -535,8 +535,12 @@ PERLVAR(Iparser,   yy_parser *)    /* current parser state */
 
 PERLVAR(Ibitcount,     char *)
 
+/* Array of signal handlers, indexed by signal number, through which the C
+   signal handler dispatches.  */
 PERLVAR(Ipsig_ptr, SV**)
-PERLVAR(Ipsig_name, SV**)
+/* Array of names of signals, indexed by signal number, for (re)use as the first
+   argument to a signal handler.   */
+PERLVAR(Ipsig_name, SV**)              
 
 #if defined(PERL_IMPLICIT_SYS)
 PERLVAR(IMem,          struct IPerlMem*)