add gpio

hc

2023-12-04 f33f61bdb7ca6d5ebe7a78f9d8694b91360279ac

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# From http://lists.gnu.org/archive/html/bug-ed/2017-02/msg00005.html
sha256    f57962ba930d70d02fc71d6be5c5f2346b16992a455ab9c43be7061dec9810db    ed-1.14.2.tar.lz