ports r482774 removed USE_PYTHON=cython, likely due to it (cython) not
being explicitly declared as a dependency in setup.py:*_requires.
However, setup.py conditionally builds with cython if it is installed, but
the 1.0.6 source distribution (sdist) does not contain a .pyx file to build
with.
This leads to a configure/build error when cython is installed:
ValueError: 'rencode/rencode.pyx' doesn't match any files
Upstream commit 5c928f14567fabc9efb8bbb8ac5e0eef03c61541 [1] via issue
#25 [2] adds the required .pyx file to the sdist, which technically
addresses the "build with cython from the sdist" issue, but does not
fundamentally resolve the higher-level question: why build with cython when
a C source pre-processed by cython has already been produced for, and is
contained in, the source distribution.
A cython build (and the dependency on cython) does not appear to be
necessary, nor intended [3][4], nor recommended [5], even after #25 is
released, for sdist consumers.
The conditional code to build with cython should not be included in
setup.py, at least not as a default case, or without an explicit request
by the user to use cython, as an optional build method, for sdist consumers
(most downstream packagers and setuptools/pip users [6]).
This change removes the conditional check for Cython, leaving the standard
setuptools build_ext (with the packaged .c) file, as the build method.
While I'm here:
- Canonicalise COMMENT (match seutp.py:description)
- Add test target with post-patch target to make the tests dir a module
usable by a setup.py test (via test_suite directive) target.
- Honour CFLAGS: Remove forced (appended) -O3 arg from setup.py
[1] 5c928f1456
[2] https://github.com/aresch/rencode/pull/25
[3] setup.py: "Error: sdist requires cython module to generate `.c` file."
[4] dev-requirements.txt:Cython
[5] https://cython.readthedocs.io/en/latest/src/userguide/source_files_and_compilation.html#distributing-cython-modules
[6] https://github.com/aresch/rencode/issues/11
PR: 233561
Reported by: John Hein <z7dr6ut7gs snkmail com>
Approved by: koobs (python)
99f578691b