I have a situation where I'm working on a module loader, that will be passed names of other Perl modules, or .pl packages, and optional release version numbers, that may or may not be in a standard Perl library path. The module's import method will look at each module name passed to it in it's LIST, and look through a series of known non-standard directory paths for that versioned module file. So the interface is something like: 
# This is the location where the loader module will be
# picked up.
use lib qw( /net/public/tools/perl/lib );
use PmLoader qw( MyFunnyModule :1.5
                 someoldpackage.pl 
                 Some::Hierarchical::Module  :2.1
               );

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The PmLoader will parse the module name, and a version number (if it exists) for that module. Otherwise, it will query our system to see if there is a "current" version for this modulename, and use it. Now these funny modules may be located in paths down from /net/public/tools/perl/lib that may contain the version number in the path, or the module name as a parent directory, in a known set of subdirectories. (These are the result of many years of haphazard development and installation methods.) For example: 
/net/public/tools/perl/lib/MyFunnyModule/<version>/MyFunnyModule.pm
/net/public/tools/perl/lib/MyFunnyModule/MyFunnyModule.pm,<version>
/net/public/tools/perl/lib/pl-libs/someoldpackage.pl

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But basically, after the PmLoader.pm module has found each of the correct modules (or .pl files), and pushed that path on @INC, I then need to load the module. So here's the rub: I need to do this: 
BEGIN { require $module; }

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Perl really doesn't like that variable name however in the BEGIN require block!! First of all, the variable $module set in the PmLoader sub import routine, isn't visible to the BEGIN{} block. And secondly, even if it was, I don't think it like seeing a variable there. What's the solution to loading module names that exist in variables?? -Cadphile

In reply to use/require $MODULE (a variable) by cadphile

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