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Bug 1817715 - python-cocotb fails to build with Python 3.9: /usr/bin/ld: cannot find -lgpi
Summary: python-cocotb fails to build with Python 3.9: /usr/bin/ld: cannot find -lgpi
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: python-cocotb
Version: rawhide
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Ben Rosser
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks: F33FTBFS PYTHON39
TreeView+ depends on / blocked
 
Reported: 2020-03-26 19:24 UTC by Miro Hrončok
Modified: 2020-06-05 14:24 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-06-05 14:24:13 UTC
Type: Bug
Embargoed:

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Description Miro Hrončok 2020-03-26 19:24:04 UTC 
python-cocotb fails to build with Python 3.9.0a5.

make[4]: Entering directory '/builddir/build/BUILD/cocotb-1.3.0/cocotb/share/lib/vpi'
gcc -Werror -Wcast-qual -Wcast-align -Wwrite-strings -Wall -Wno-unused-parameter -fno-common -g -DDEBUG -fpic -Wstrict-prototypes -Waggregate-return -DICARUS -shared -Xlinker -L/usr/lib64 -o /builddir/build/BUILD/cocotb-1.3.0/build/libs/x86_64/libvpi.so /builddir/build/BUILD/cocotb-1.3.0/build/obj/x86_64/VpiImpl.o /builddir/build/BUILD/cocotb-1.3.0/build/obj/x86_64/VpiCbHdl.o   -lgpilog -lgpi -lstdc++  -L/builddir/build/BUILD/cocotb-1.3.0/build/libs/x86_64
/usr/bin/ld: cannot find -lgpi
collect2: error: ld returned 1 exit status

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.9/fedora-rawhide-x86_64/01321085-python-cocotb/

For all our attempts to build python-cocotb with Python 3.9, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.9/package/python-cocotb/

Testing and mass rebuild of packages is happening in copr. You can follow these instructions to test locally in mock if your package builds with Python 3.9:
https://copr.fedorainfracloud.org/coprs/g/python/python3.9/

Let us know here if you have any questions.

Python 3.9 will be included in Fedora 33. To make that update smoother, we're building Fedora packages with early pre-releases of Python 3.9.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires), so if this package is required a lot, it's important for us to get it fixed soon.
We'd appreciate help from the people who know this package best, but if you don't want to work on this now, let us know so we can try to work around it on our side.
Comment 1 Ben Rosser 2020-04-21 15:08:30 UTC 
It looks like this is because PyEval_InitThreads() was deprecated in 3.9 and the C libraries are being compiled with -Werror=deprecated-declarations turned on.

Since this function call no longer does anything in 3.9, according to the release notes, I think the thing to do is just remove it. I've pushed a commit to Rawhide doing just that, hopefully that will solve the problem!

https://docs.python.org/3.9/whatsnew/3.9.html
Comment 2 Miro Hrončok 2020-05-25 13:01:49 UTC 
This comment is mass posted to all bugs blocking the Python 3.9 tracker, sorry if it is not 100 % relevant. When in doubt, please ask.


The Python 3.9 rebuild is in progress in a Koji side tag.

If you fix this bug, please don't rebuild the package in regular rawhide, but do it in the side tag with:

    $ fedpkg build --target=f33-python

The rebuild is progressing slowly and it is possible this package won't have all the required build dependencies yet. If that's the case, please just leave the fix committed and pushed and we will eventually rebuild it for you.

You are not asked to go and try rebuild all the missing dependencies yourself. If you know there is a bootstrap loop in the dependencies, let me know and we can untangle it together.

If you want to test your fix or reproduce the failure, you can still use the Copr repo mentioned in the initial comment of this bug: https://copr.fedorainfracloud.org/coprs/g/python/python3.9/
Comment 3 Petr Viktorin 2020-05-28 18:35:31 UTC 
There is one more failure, see: https://koji.fedoraproject.org/koji/buildinfo?buildID=1512314

./bin/combine_results.py
Traceback (most recent call last):
  File "/builddir/build/BUILD/cocotb-1.3.1/./bin/combine_results.py", line 11, in <module>
    from xml.etree import cElementTree as ET
ImportError: cannot import name 'cElementTree' from 'xml.etree' (/usr/lib64/python3.9/xml/etree/__init__.py)

cElementTree has been deprecated since 2012. From Python 3.9 release notes (https://docs.python.org/3.9/whatsnew/3.9.html#removed):
> The xml.etree.cElementTree module has been removed, use the xml.etree.ElementTree module instead. Since Python 3.3 the xml.etree.cElementTree module has been deprecated, the xml.etree.ElementTree module uses a fast implementation whenever available.
Comment 4 Miro Hrončok 2020-05-29 07:11:44 UTC 
Python 3.9 update: The f33-python side tag is currently being merged.

New builds in f33-python are no longer possible, but python3 is not yet updated to Python 3.9 in rawhide. You can check when Python is Python 3.9 with:

    $ koji wait-repo f33-build --build python3.9-3.9.0~b1-3.fc3

And build the packages normally after that.
Comment 5 Ben Rosser 2020-06-05 14:24:13 UTC 
This should now be fixed; I've updated the import and the package seems to build on Rawhide again.

https://koji.fedoraproject.org/koji/taskinfo?taskID=45454735
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