nixpkgs/pkgs/applications/graphics/sane/backends.nix

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{ stdenv, fetchurl, hotplugSupport ? true, libusb ? null, libv4l ? null, pkgconfig ? null , gt68xxFirmware ? null }:
assert hotplugSupport -> (stdenv.system == "i686-linux" || stdenv.system == "x86_64-linux");
let
firmware = gt68xxFirmware { inherit fetchurl; };
in
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stdenv.mkDerivation rec {
version = "1.0.23";
name = "sane-backends-${version}";
src = fetchurl {
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url = "https://launchpad.net/ubuntu/+archive/primary/+files/sane-backends_${version}.orig.tar.gz";
sha256 = "4d4f5b2881615af7fc0ed75fdde7dc623a749e80e40f3f792fe4010163cbb029";
};
udevSupport = hotplugSupport;
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buildInputs = []
++ stdenv.lib.optional (libusb != null) libusb
++ stdenv.lib.optional (libv4l != null) libv4l
++ stdenv.lib.optional (pkgconfig != null) pkgconfig
;
postInstall = ''
if test "$udevSupport" = "1"; then
mkdir -p $out/etc/udev/rules.d/
./tools/sane-desc -m udev > $out/etc/udev/rules.d/60-libsane.rules || \
cp tools/udev/libsane.rules $out/etc/udev/rules.d/60-libsane.rules
fi
'';
preInstall =
if gt68xxFirmware != null then
"mkdir -p \${out}/share/sane/gt68xx ; ln -s " + firmware.fw +
" \${out}/share/sane/gt68xx/" + firmware.name
else "";
meta = {
homepage = "http://www.sane-project.org/";
description = "Scanner Access Now Easy";
license = "GPLv2+";
maintainers = [ stdenv.lib.maintainers.simons ];
platforms = stdenv.lib.platforms.linux;
};
}