{
    "mode": "perldoc",
    "parameter": "Config::Extensions",
    "section": "",
    "url": "https://www.chedong.com/phpMan.php/perldoc/Config%3A%3AExtensions/json",
    "generated": "2026-06-12T14:15:22Z",
    "synopsis": "use Config::Extensions '%Extensions';\nif ($Extensions{PerlIO::via}) {\n# This perl has PerlIO::via built\n}",
    "sections": {
        "NAME": {
            "content": "Config::Extensions - hash lookup of which core extensions were built.\n",
            "subsections": []
        },
        "SYNOPSIS": {
            "content": "use Config::Extensions '%Extensions';\nif ($Extensions{PerlIO::via}) {\n# This perl has PerlIO::via built\n}\n",
            "subsections": []
        },
        "DESCRIPTION": {
            "content": "The Config::Extensions module provides a hash %Extensions containing all the core extensions\nthat were enabled for this perl. The hash is keyed by extension name, with each entry having one\nof 3 possible values:\n\ndynamic\nThe extension is dynamically linked\n\nnonxs\nThe extension is pure perl, so doesn't need linking to the perl executable\n\nstatic\nThe extension is statically linked to the perl binary\n\nAs all values evaluate to true, a simple \"if\" test is good enough to determine whether an\nextension is present.\n\nAll the data uses to generate the %Extensions hash is already present in the \"Config\" module,\nbut not in such a convenient format to quickly reference.\n",
            "subsections": []
        },
        "AUTHOR": {
            "content": "Nicholas Clark <nick@ccl4.org>\n",
            "subsections": []
        }
    },
    "summary": "Config::Extensions - hash lookup of which core extensions were built.",
    "flags": [],
    "examples": [],
    "see_also": []
}