LibXML2 Fails on Zorin 17

[bwanshoom]

I get the following error when trying to compile libxml2:

CMake Error at /home/brian/src/ffmpeg-build-script/workspace/share/cmake-3.31/Modules/FindPackageHandleStandardArgs.cmake:233 (message):
Could NOT find Python (missing: Python_EXECUTABLE Python_INCLUDE_DIRS
Python_LIBRARIES Interpreter Development Development.Module
Development.Embed)
Call Stack (most recent call first):
/home/brian/src/ffmpeg-build-script/workspace/share/cmake-3.31/Modules/FindPackageHandleStandardArgs.cmake:603 (_FPHSA_FAILURE_MESSAGE)
/home/brian/src/ffmpeg-build-script/workspace/share/cmake-3.31/Modules/FindPython.cmake:673 (find_package_handle_standard_args)
CMakeLists.txt:69 (find_package)

The fix is to replace this line (line 1563):
-DBUILD_SHARED_LIBS=OFF -G Ninja -Wno-dev
with this one:
-DBUILD_SHARED_LIBS=OFF -G Ninja -Wno-dev -DPython_EXECUTABLE=$(which python3)

That change should be harmless on any system. Zorin 17 is based on Ubuntu 22.04 so it may be an issue there as well?

[nwellnhof]

You probably don't need libxml2's Python bindings, so I'd suggest to build libxml2 with -DLIBXML2_WITH_PYTHON=OFF.

[bwanshoom]

I was just running the script out of the box - if that's not needed then maybe it should be updated in the script?