Allow to build with the PyPI package "clang" instead of "libclang". 1. It seems to be maintained. 2. In the FreeBSD base system there is no pre-built libclang.so. If you need this library you have to install llvm from ports additionally. 2. On FreeBSD there is no pre-built wheel "libclang" with a packaged libclang.so.

[Desktop Entry]
Version=1.0
Encoding=UTF-8
Name=Zint Barcode Studio
GenericName=Barcode Generator
Comment=GUI for the creation of barcodes
Exec=zint-qt
Icon=zint-qt
Terminal=false
Type=Application
Categories=Graphics;2DGraphics;
Keywords=barcode;studio;