pythonqt uses the qmake build system which I am not very familiar with, however the issue seems to be deriving from that file [0]

[0] This is due to https://sourceforge.net/p/pythonqt/code/HEAD/tree/trunk/build/python.prf

This line:   unix:LIBS += $$system(python$${PYTHON_VERSION}-config --ldflags) will need to be changed to   unix:LIBS += $$system(python$${PYTHON_VERSION}-config --libs --embed) for 3.8

The default python version is changing dynamically according to the SPEC: https://src.fedoraproject.org/rpms/pythonqt/blob/master/f/pythonqt.spec#_47

A conditional ideally should be added there so if the python version is 3.8 or higher then the embed option is added, however I didn't find a good way to do that in the code (unless just hacking the SPEC to apply a patch conditionally).


Igor any ideas?

build/python.prf should be modified to use the new --embed flag:
https://docs.python.org/dev/whatsnew/3.8.html#debug-build-uses-the-same-abi-as-release-build

  unix:LIBS += $$system(python$${PYTHON_VERSION}-config --ldflags)
  unix:QMAKE_CXXFLAGS += $$system(python$${PYTHON_VERSION}-config --includes)

I tried to use bash syntax to run a second if the first one fails:

  unix:LIBS += $$system(python$${PYTHON_VERSION}-config --ldflags --embed || python$${PYTHON_VERSION}-config --ldflags)
  unix:QMAKE_CXXFLAGS += $$system(python$${PYTHON_VERSION}-config --includes --embed || python$${PYTHON_VERSION}-config --includes)

Problem: qmake syntax doesn't accept "||", it has a different meaning.

A bash script could be added to use shell syntax, and build/python.prf would run this script using $$(system).

Igor?

Retired.