Config::Extensions

Section: Perl Programmers Reference Guide (3pm)
Updated: 2021-03-31
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NAME

Config::Extensions - hash lookup of which core extensions were built.

SYNOPSIS

    use Config::Extensions '%Extensions';
    if ($Extensions{PerlIO::via}) {
        # This perl has PerlIO::via built
    }

DESCRIPTION

The Config::Extensions module provides a hash %Extensions containing all the core extensions that were enabled for this perl. The hash is keyed by extension name, with each entry having one of 3 possible values:

dynamic: The extension is dynamically linked
nonxs: The extension is pure perl, so doesn't need linking to the perl executable
static: The extension is statically linked to the perl binary

As all values evaluate to true, a simple "if" test is good enough to determine whether an extension is present.

All the data uses to generate the %Extensions hash is already present in the "Config" module, but not in such a convenient format to quickly reference.

AUTHOR

Nicholas Clark <nick@ccl4.org>