gbinder-python: fix cross-compilation

Signed-off-by: Mika Tammi <[e-mail]>

pkgs/development/python-modules/gbinder-python/default.nix

···
     pkg-config
   ];
 
+  postPatch = ''
+    # Fix pkg-config name for cross-compilation
+    substituteInPlace setup.py --replace "pkg-config" "$PKG_CONFIG"
+  '';
+
   setupPyGlobalFlags = [ "--cython" ];
 
   meta = with lib; {