nixpkgs/pkgs/development/python-modules/pyglet/default.nix
Timo Kaufmann 446ac90e05 python.pkgs.pyglet: hardcode library paths
Fixes failure to find certain libraries such as libc.
2019-05-28 13:44:29 +02:00

73 lines
2 KiB
Nix

{ stdenv
, buildPythonPackage
, fetchPypi
, libGLU_combined
, xorg
, future
, pytest
, glibc
, gtk2-x11
, gdk_pixbuf
}:
buildPythonPackage rec {
version = "1.3.2";
pname = "pyglet";
src = fetchPypi {
inherit pname version;
sha256 = "b00570e7cdf6971af8953b6ece50d83d13272afa5d1f1197c58c0f478dd17743";
};
# find_library doesn't reliably work with nix (https://github.com/NixOS/nixpkgs/issues/7307).
# Even naively searching `LD_LIBRARY_PATH` won't work since `libc.so` is a linker script and
# ctypes.cdll.LoadLibrary cannot deal with those. Therefore, just hardcode the paths to the
# necessary libraries.
postPatch = let
ext = stdenv.hostPlatform.extensions.sharedLibrary;
in ''
cat > pyglet/lib.py <<EOF
import ctypes
def load_library(*names, **kwargs):
for name in names:
path = None
if name == 'GL':
path = '${libGLU_combined}/lib/libGL${ext}'
elif name == 'GLU':
path = '${libGLU_combined}/lib/libGLU${ext}'
elif name == 'c':
path = '${glibc}/lib/libc${ext}.6'
elif name == 'X11':
path = '${xorg.libX11}/lib/libX11${ext}'
elif name == 'gdk-x11-2.0':
path = '${gtk2-x11}/lib/libgdk-x11-2.0${ext}'
elif name == 'gdk_pixbuf-2.0':
path = '${gdk_pixbuf}/lib/libgdk_pixbuf-2.0${ext}'
if path is not None:
return ctypes.cdll.LoadLibrary(path)
raise Exception("Could not load library {}".format(names))
EOF
'';
propagatedBuildInputs = [ future ];
# needs an X server. Keep an eye on
# https://bitbucket.org/pyglet/pyglet/issues/219/egl-support-headless-rendering
doCheck = false;
checkInputs = [
pytest
];
checkPhase = ''
py.test tests/unit tests/integration
'';
meta = with stdenv.lib; {
homepage = "http://www.pyglet.org/";
description = "A cross-platform windowing and multimedia library";
license = licenses.bsd3;
platforms = platforms.mesaPlatforms;
};
}