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nixpkgs/pkgs/development/tools/misc/help2man/default.nix

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{ stdenv, hostPlatform, fetchurl, perl, gettext, LocaleGettext, makeWrapper }:
stdenv.mkDerivation rec {
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name = "help2man-1.47.5";
src = fetchurl {
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url = "mirror://gnu/help2man/${name}.tar.xz";
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sha256 = "1cb14kp380jzk1yi4i7x9d8qplc8c5mgcbgycgs9ggpx34jhp9kw";
};
nativeBuildInputs = [ makeWrapper gettext LocaleGettext ];
buildInputs = [ perl LocaleGettext ];
doCheck = false; # target `check' is missing
patches = if hostPlatform.isCygwin then [ ./1.40.4-cygwin-nls.patch ] else null;
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postInstall =
'' wrapProgram "$out/bin/help2man" \
--prefix PERL5LIB : "$(echo ${LocaleGettext}/lib/perl*/site_perl)" \
${stdenv.lib.optionalString hostPlatform.isCygwin "--prefix PATH : ${gettext}/bin"}
'';
meta = with stdenv.lib; {
description = "Generate man pages from `--help' output";
longDescription =
'' help2man produces simple manual pages from the --help and
--version output of other commands.
'';
homepage = http://www.gnu.org/software/help2man/;
license = licenses.gpl3Plus;
platforms = platforms.all;
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maintainers = with maintainers; [ pSub ];
};
}