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{ stdenv, fetchurl, perl }:
stdenv.mkDerivation rec{
version = "3.03+dfsg2";
pname = "cowsay";
src = fetchurl {
url = "http://http.debian.net/debian/pool/main/c/cowsay/cowsay_${version}.orig.tar.gz";
sha256 = "0ghqnkp8njc3wyqx4mlg0qv0v0pc996x2nbyhqhz66bbgmf9d29v";
};
buildInputs = [ perl ];
postBuild = ''
substituteInPlace cowsay --replace "%BANGPERL%" "!${perl}/bin/perl" \
--replace "%PREFIX%" "$out"
'';
installPhase = ''
mkdir -p $out/{bin,man/man1,share/cows}
install -m755 cowsay $out/bin/cowsay
ln -s cowsay $out/bin/cowthink
install -m644 cowsay.1 $out/man/man1/cowsay.1
ln -s cowsay.1 $out/man/man1/cowthink.1
install -m644 cows/* -t $out/share/cows/
'';
meta = with stdenv.lib; {
description = "A program which generates ASCII pictures of a cow with a message";
homepage = "https://en.wikipedia.org/wiki/Cowsay";
license = licenses.gpl1;
platforms = platforms.all;
maintainers = [ maintainers.rob ];
};
}
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