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{ stdenv, fetchurl }:
stdenv.mkDerivation rec {
pname = "byacc";
version = "20200330";
src = fetchurl {
urls = [
"ftp://ftp.invisible-island.net/byacc/${pname}-${version}.tgz"
"https://invisible-mirror.net/archives/byacc/${pname}-${version}.tgz"
];
sha256 = "1c0zyn6v286i09jlc8gx6jyaa5438qyy985rqsd76kb8ibfy56g0";
};
configureFlags = [
"--program-transform-name='s,^,b,'"
];
doCheck = true;
postInstall = ''
ln -s $out/bin/byacc $out/bin/yacc
'';
meta = with stdenv.lib; {
description = "Berkeley YACC";
homepage = "https://invisible-island.net/byacc/byacc.html";
license = licenses.publicDomain;
platforms = platforms.unix;
};
}
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