saga: fix darwin build (#448081)

Changed files
+6
pkgs
by-name
sa
+6
pkgs/by-name/sa/saga/package.nix
···
# native
cmake,
desktopToDarwinBundle,
+
dos2unix,
pkg-config,
wrapGAppsHook3,
# not native
···
sourceRoot = "saga-${version}/saga-gis";
+
postPatch = ''
+
dos2unix src/saga_core/saga_gui/res/org.saga_gis.saga_gui.desktop
+
'';
+
nativeBuildInputs = [
cmake
+
dos2unix
wrapGAppsHook3
pkg-config
]