nixpkgs/pkgs/tools/misc/brltty/default.nix

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{ stdenv, fetchurl, pkgconfig, alsaSupport, alsaLib ? null, bluez, systemdSupport, systemd ? null }:
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assert alsaSupport -> alsaLib != null;
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assert systemdSupport -> systemd != null;
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stdenv.mkDerivation rec {
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name = "brltty-5.4";
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src = fetchurl {
url = "http://brltty.com/archive/${name}.tar.gz";
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sha256 = "1993brxa76yf7z3ckax0bbmqv6jp8vjwxp19h425v4gpm0m17k7l";
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};
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patches = [ ./systemd.patch ];
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buildInputs = [ pkgconfig bluez ]
++ stdenv.lib.optional alsaSupport alsaLib
++ stdenv.lib.optional systemdSupport systemd;
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meta = {
description = "Access software for a blind person using a braille display";
longDescription = ''
BRLTTY is a background process (daemon) which provides access to the Linux/Unix
console (when in text mode) for a blind person using a refreshable braille display.
It drives the braille display, and provides complete screen review functionality.
Some speech capability has also been incorporated.
'';
homepage = http://www.brltty.com/;
license = stdenv.lib.licenses.gpl2;
maintainers = [ stdenv.lib.maintainers.bramd ];
platforms = stdenv.lib.platforms.all;
};
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preConfigurePhases = [ "preConfigure" ];
preConfigure = ''
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substituteInPlace configure --replace /sbin/ldconfig ldconfig
'';
}