.\" -*- mode: troff; coding: utf-8 -*-
.\" Automatically generated by Pod::Man 5.01 (Pod::Simple 3.43)
.\"
.\" Standard preamble:
.\" ========================================================================
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
..
.de Vb \" Begin verbatim text
.ft CW
.nf
.ne \\$1
..
.de Ve \" End verbatim text
.ft R
.fi
..
.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>.
.ie n \{\
.    ds C` ""
.    ds C' ""
'br\}
.el\{\
.    ds C`
.    ds C'
'br\}
.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\"
.\" If the F register is >0, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD.  Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.\"
.\" Avoid warning from groff about undefined register 'F'.
.de IX
..
.nr rF 0
.if \n(.g .if rF .nr rF 1
.if (\n(rF:(\n(.g==0)) \{\
.    if \nF \{\
.        de IX
.        tm Index:\\$1\t\\n%\t"\\$2"
..
.        if !\nF==2 \{\
.            nr % 0
.            nr F 2
.        \}
.    \}
.\}
.rr rF
.\" ========================================================================
.\"
.IX Title "Config::Extensions 3pm"
.TH Config::Extensions 3pm 2023-11-28 "perl v5.38.2" "Perl Programmers Reference Guide"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH NAME
Config::Extensions \- hash lookup of which core extensions were built.
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 4
\&    use Config::Extensions \*(Aq%Extensions\*(Aq;
\&    if ($Extensions{PerlIO::via}) {
\&        # This perl has PerlIO::via built
\&    }
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
The Config::Extensions module provides a hash \f(CW%Extensions\fR 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:
.IP dynamic 4
.IX Item "dynamic"
The extension is dynamically linked
.IP nonxs 4
.IX Item "nonxs"
The extension is pure perl, so doesn't need linking to the perl executable
.IP static 4
.IX Item "static"
The extension is statically linked to the perl binary
.PP
As all values evaluate to true, a simple \f(CW\*(C`if\*(C'\fR test is good enough to determine
whether an extension is present.
.PP
All the data uses to generate the \f(CW%Extensions\fR hash is already present in
the \f(CW\*(C`Config\*(C'\fR module, but not in such a convenient format to quickly reference.
.SH AUTHOR
.IX Header "AUTHOR"
Nicholas Clark <nick@ccl4.org>