When building portmidi with GCC 11 on all Python targets building fails with the following error: x86_64-pc-linux-gnu-gcc -O2 -pipe -fPIC -I../pm_common -I../porttime -I/usr/include/python3.10 -c pyportmidi/_pyportmidi.c -o /var/tmp/portage/media-libs/portmidi-234-r1/work/portmedia-code-r234/portmidi/trunk_build-python3_10/temp.linux-x86_64-3.10/pyportmidi/_pyportmidi.o pyportmidi/_pyportmidi.c: In function ‘__pyx_tp_dealloc_11_pyportmidi_Output’: pyportmidi/_pyportmidi.c:3455:5: error: lvalue required as increment operand 3455 | ++Py_REFCNT(o); | ^~ pyportmidi/_pyportmidi.c:3458:5: error: lvalue required as decrement operand 3458 | --Py_REFCNT(o); | ^~ pyportmidi/_pyportmidi.c: In function ‘__pyx_tp_dealloc_11_pyportmidi_Input’: pyportmidi/_pyportmidi.c:3634:5: error: lvalue required as increment operand 3634 | ++Py_REFCNT(o); | ^~ etc. I'm compiling with GCC 11 and for all Python targets (3.8, 3.9, 3.10) The error in question seems to occur within the 3.10 bindings specifically. Reproducible: Always Steps to Reproduce: 1. Try to emerge media-libs/portmidi Actual Results: Build failure Expected Results: Merges N/A
Please include the full build.log and emerge --info.
Created attachment 788666 [details] emerge --info output
Created attachment 788669 [details] Build log of portmidi-234-r1
I didn't see an upload dialog in the "bug create" screen anymore, otherwise I would've added these files upon bug creation. Perhaps I just didn't look well enough.
The problem is in python-3.10 compatibility. media-libs/portmidi-234 compiles well for me, media-libs/portmidi-234-r1 fails the reported way. The main difference is python compatibility, 3.7 to 3.9 for 234, and 3.8 to 3.11 for 234-r1. I get the lvalue problem while compiling for python-3.10: * python3_9: running distutils-r1_run_phase distutils-r1_python_compile python3.9 setup.py build -j 1 Assuming Linux platform running build running build_py ... x86_64-pc-linux-gnu-gcc -shared -Wl,-O1 -Wl,--as-needed -L/var/tmp/portage/media-libs/portmidi-234-r1/work/portmedia-code-r234/portmidi/trunk_build -O2 -pipe /var/tmp/portage/media-libs/portmidi-234-r1/work/portmedia-code-r234/portmidi/trunk_build-python3_9/temp.linux-x86_64-3.9/pyportmidi/_pyportmidi.o -L/usr/lib64 -lportmidi -lasound -lpthread -o /var/tmp/portage/media-libs/portmidi-234-r1/work/portmedia-code-r234/portmidi/trunk_build-python3_9/lib/pyportmidi/_pyportmidi.cpython-39-x86_64-linux-gnu.so * python3_10: running distutils-r1_run_phase distutils-r1_python_compile python3.10 setup.py build -j 1 /var/tmp/portage/media-libs/portmidi-234-r1/work/portmedia-code-r234/portmidi/trunk/pm_python/setup.py:5: Dep recationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use setuptools or check PEP 632 for potential alternatives from distutils.core import setup, Command Assuming Linux platform running build running build_py creating /var/tmp/portage/media-libs/portmidi-234-r1/work/portmedia-code-r234/portmidi/trunk_build-python3_10 /lib/pyportmidi copying pyportmidi/__init__.py -> /var/tmp/portage/media-libs/portmidi-234-r1/work/portmedia-code-r234/portmi di/trunk_build-python3_10/lib/pyportmidi copying pyportmidi/midi.py -> /var/tmp/portage/media-libs/portmidi-234-r1/work/portmedia-code-r234/portmidi/t runk_build-python3_10/lib/pyportmidi package init file 'pyportmidi/tests/__init__.py' not found (or not a regular file) package init file 'pyportmidi/tests/__init__.py' not found (or not a regular file) warning: build_py: byte-compiling is disabled, skipping. running build_ext skipping 'pyportmidi/_pyportmidi.c' Cython extension (up-to-date) building 'pyportmidi._pyportmidi' extension creating /var/tmp/portage/media-libs/portmidi-234-r1/work/portmedia-code-r234/portmidi/trunk_build-python3_10 /temp.linux-x86_64-3.10 creating /var/tmp/portage/media-libs/portmidi-234-r1/work/portmedia-code-r234/portmidi/trunk_build-python3_10 /temp.linux-x86_64-3.10/pyportmidi x86_64-pc-linux-gnu-gcc -O2 -pipe -fPIC -I../pm_common -I../porttime -I/usr/include/python3.10 -c pyportmidi/ _pyportmidi.c -o /var/tmp/portage/media-libs/portmidi-234-r1/work/portmedia-code-r234/portmidi/trunk_build-py thon3_10/temp.linux-x86_64-3.10/pyportmidi/_pyportmidi.o pyportmidi/_pyportmidi.c: In function ‘__pyx_tp_dealloc_11_pyportmidi_Output’: pyportmidi/_pyportmidi.c:3455:5: error: lvalue required as increment operand 3455 | ++Py_REFCNT(o); | ^~ pyportmidi/_pyportmidi.c:3458:5: error: lvalue required as decrement operand 3458 | --Py_REFCNT(o); | ^~ pyportmidi/_pyportmidi.c: In function ‘__pyx_tp_dealloc_11_pyportmidi_Input’: pyportmidi/_pyportmidi.c:3634:5: error: lvalue required as increment operand 3634 | ++Py_REFCNT(o); | ^~ pyportmidi/_pyportmidi.c:3637:5: error: lvalue required as decrement operand 3637 | --Py_REFCNT(o); | ^~ ... (a set of warnings follows, similar to those reported while compiling for python-3.9)
Use media-libs/portmidi -python is likely the way to go until media-libs/portmidi ebuild gets substantially upgraded. portmidi-234, that is portmedia-code-r234 apparently no longer exists outside Gentoo servers. It is 2 yeras old, and not available at Sourceforge anymore: https://sourceforge.net/p/portmedia/activity/?page=0&limit=100#61d4b950a6297fef5da0d013 There is r276 at Sourceforge, without python bindings: https://sourceforge.net/p/portmedia/code/HEAD/tree/ The last version with pm_python was r273: https://sourceforge.net/p/portmedia/code/273/tree/ but that has the same problem with Python 3.10 portmidi developement has been moved to GitHub: https://github.com/PortMidi/portmidi and the portmidi part of the portmedia project at Sourceforge is updated from there. These updates, however, no longer contain python bindings. Various language bindings and other bells and whistles have been separated to repositories of their own, and there is a call for developers for them: https://github.com/PortMidi This is the case of Python bindings: https://github.com/PortMidi/pm_python Whoever manages to update the code for Python 3.10 may likely apply to be its developer. Portsmf and scorealign from the original portmedia package have got their own projects at GitHub: https://github.com/rbdannenberg/portsmf https://github.com/rbdannenberg/scorealign (the portmidi Readme.md erroneously advertises the portsmf repository as https://github.com/PortMidi/portsmf which does not exist) Proper reorganisation of the media-libs/portmidi ebuild will likely require some non-trivial work.
Thanks for the summary. I wonder, does anyone here hitting this bug actually use the Python bindings?
I hit the bug today as well, while moving to default Python 3.10. Don't need the python bindings though, just have python set in make.conf. Only revdep which I have installed is denemo, which doesn't require the python bindings.
I installed it specifically for the Python bindings at the time, as I was doing some scripting with it. But that was many years ago, and honestly I forgot I had it installed until it broke two days ago.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=6e175c886cb3b6f04c290f93374d6de3022ac6c4 commit 6e175c886cb3b6f04c290f93374d6de3022ac6c4 Author: Sam James <sam@gentoo.org> AuthorDate: 2022-07-02 13:00:05 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2022-07-02 13:00:23 +0000 media-libs/portmidi: drop broken Python bindings Closes: https://bugs.gentoo.org/855077 Signed-off-by: Sam James <sam@gentoo.org> media-libs/portmidi/portmidi-234-r2.ebuild | 120 +++++++++++++++++++++++++++++ 1 file changed, 120 insertions(+)
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=aac5fb7f14a39b73a851dcb3c9a3d3b8e520d53e commit aac5fb7f14a39b73a851dcb3c9a3d3b8e520d53e Author: Sam James <sam@gentoo.org> AuthorDate: 2022-07-02 13:01:47 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2022-07-02 13:01:47 +0000 media-libs/portmidi: drop broken Python 3.10+ Bug: https://bugs.gentoo.org/855077 Bug: https://bugs.gentoo.org/846029 Signed-off-by: Sam James <sam@gentoo.org> media-libs/portmidi/portmidi-234-r1.ebuild | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
