Simplify python binding include handling

[karliss]

• remove duplicate code introduced in Allow building Python bindings with Qt6 #2952
• specify include path using multiple include-path lines instead instead of single line with with directories separated by ; or :

Your checklist for this pull request

• I've read the guidelines for contributing to this repository
• I made sure to follow the project's coding style
• I've updated the documentation with the relevant information (if needed)

Detailed description

Looks like shiboken6 slightly changed the rules of bindings.txt and now include-path entry doesn't allow multiple include directories. Generating multiple include-path entries, one for each directory seems to work fine both for shiboken6 an shiboken2.

I am not too happy about the way I handled macOS include path, but I guess it's no worse than what was already there for qt5 (likely due to similar reasons).

Test plan (required)

• CI builds still work
• Arch Linux qt6 with bundled rizin
• Arch Linux qt5 with bundled rizin *
• Arch Linux qt6 with rizin installed in random user dir
• macOS homebrew qt6 bundled rizin Qt6 Python bindings - failure to build on macOS  #3188
• NixOS with qt6 as reported by @chayleaf
• build attempts on any other distro or OS are welcome

* had to comment out Py_LIMITED_API seems like shiboken2 isn't tested against latest python . Otherwise it error on this code in shiboken2/pep384impl.h :

// This definition breaks the limited API a little, because it re-enables the
// buffer functions.
// But this is no problem as we check it's validity for every version.

#define PYTHON_BUFFER_VERSION_COMPATIBLE    (PY_VERSION_HEX >= 0x03030000 && \
                                             PY_VERSION_HEX <  0x030AFFFF)
#if !PYTHON_BUFFER_VERSION_COMPATIBLE
# error Please check the buffer compatibility for this python version!
#endif

Closing issues

closes #3188

[chayleaf]

this builds fine for me on NixOS with Pyside6. And yes, Shiboken2 requires Python 3.10

[chayleaf]

As @lilyinstarlight mentioned, this fixes the Nix build on Linux, but not on Darwin.

[karliss]

@lilyinstarlight Can you retest with Nix on macOS? Tested that homebrew still works on my system. It ended up being based on QT6_INSTALL_PREFIX anyway, but at least now it's closer to what pyside is doing.

Definition of QT_FRAMEWORK_INCLUDE_DIR
https://code.qt.io/cgit/pyside/pyside-setup.git/tree/sources/pyside6/cmake/PySideSetup.cmake?h=6.6.1#n134
Usage:
https://code.qt.io/cgit/pyside/pyside-setup.git/tree/sources/pyside6/cmake/Macros/PySideModules.cmake?h=6.6&id=v6.6.0#n146

[lilyinstarlight]

Can you retest with Nix on macOS?

Yep, the latest commit seems to work great for building with Qt6 from Nix now. Thank you! ❤️