On Mon, 18 Dec 2000, Kort, Eric wrote:
> In the hopes that this is not rediculous, I offer the following question in
> answer to your questions: is perl compiled with dynamic loading support on
> your system? We had trouble (for some reason) compiling perl with dynamic
> loading on our Unix system, and therefore we only have static linking
> enabled on that box.
>
> Maybe something to check. (How do you check? I'm not sure off the top of
> my head, by I am sure you or someone else here knows.)
The config variable usedl sets dynamic loading for perl:
% perl -V:usedl
usedl='define';
The variable dlsrc mentions which xs implementation of Dynaloader was
used. Perhaps the most common one is based on the dlopen() C RTL call
that was a part of POSIX (I think):
% perl -V:dlsrc
dlsrc='dl_dlopen.xs';
Although other values are possible, such as on VMS:
$ perl "-V:dlsrc"
dlsrc='dl_vms.c';
A value of dl_none.xs indicates a static only perl, for example:
$ perl -V:usedl -V:dlsrc -e 'print "$^O\n"'
usedl='undef';
dlsrc='dl_none.xs';
os390
Without resorting to -V command line shorthands you can access those
variables (in a Makefile.PL for example) via the Config module as in:
use Config;
my $usedl = $Config{'usedl'};
my $dlsrc = $Config{'dlsrc'};
Peter Prymmer
