signal handler dispatches. */
PERLVAR(Ipsig_ptr, SV**)
/* Array of names of signals, indexed by signal number, for (re)use as the first
- argument to a signal handler. */
+ argument to a signal handler. Only one block of memory is allocated for
+ both psig_name and psig_ptr. */
PERLVAR(Ipsig_name, SV**)
#if defined(PERL_IMPLICIT_SYS)