Bug 1710767 - python-wxpython4 FTBFS with Python 3.8
Summary: python-wxpython4 FTBFS with Python 3.8
Alias: None
Product: Fedora
Classification: Fedora
Component: python-wxpython4
Version: rawhide
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Scott Talbert
QA Contact: Fedora Extras Quality Assurance
Depends On:
Blocks: PYTHON38
TreeView+ depends on / blocked
Reported: 2019-05-16 09:33 UTC by Lumír Balhar
Modified: 2019-05-18 19:02 UTC (History)
12 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2019-05-18 19:02:24 UTC
Type: Bug

Attachments (Terms of Use)
Full build log from COPR (45.73 KB, application/gzip)
2019-05-16 09:33 UTC, Lumír Balhar
no flags Details
root.log from COPR (25.68 KB, application/gzip)
2019-05-16 09:45 UTC, Lumír Balhar
no flags Details
config.log (40.46 KB, text/plain)
2019-05-16 11:11 UTC, Miro Hrončok
no flags Details
config.log (43.14 KB, text/plain)
2019-05-17 14:29 UTC, Miro Hrončok
no flags Details

Description Lumír Balhar 2019-05-16 09:33:30 UTC
Created attachment 1569452 [details]
Full build log from COPR

python-wxpython4-4.0.4-3.fc31 fails to build from source in Fedora rawhide with Python 3.8.

The error message is:
Checking for program 'python'            : /usr/bin/python3 
Checking for python version >= 2.7.0     : 3.8.0 
python-config                            : /usr/bin/python3-config 
Asking python-config for pyembed '--cflags --libs --ldflags' flags : yes 
Testing pyembed configuration                                      : Could not build a python embedded interpreter 
Testing pyembed configuration                                      : Could not build a python embedded interpreter 
BUILDSTDERR: The configuration failed
BUILDSTDERR: (complete log in /builddir/build/BUILD/python-wxpython4-4.0.4/python3/build/waf/3.8/gtk3/config.log)
Command '"/usr/bin/python3" /builddir/build/BUILD/python-wxpython4-4.0.4/python3/bin/waf-2.0.8 --wx_config=wx-config-3.0 --gtk3 --python="/usr/bin/python3" --out=build/waf/3.8/gtk3 configure build ' failed with exit code 1.
Finished command: build_py (0.972s)
BUILDSTDERR: error: Bad exit status from /var/tmp/rpm-tmp.H67ljx (%build)

Comment 1 Miro Hrončok 2019-05-16 09:39:45 UTC
let me try dig the config.log

Comment 2 Lumír Balhar 2019-05-16 09:45:57 UTC
Created attachment 1569456 [details]
root.log from COPR

Comment 3 Miro Hrončok 2019-05-16 11:11:32 UTC
Created attachment 1569490 [details]

Comment 4 Miro Hrončok 2019-05-16 11:12:07 UTC
[1/2] Compiling build/waf/3.8/gtk3/.conf_check_1c6b03a74ebec564757f8a7c923132ce/test.cpp

['/usr/bin/g++', '-O2', '-g', '-fexceptions', '-fstack-protector-strong', '-grecord-gcc-switches', '-m64', '-mtune=generic', '-fasynchronous-unwind-tables', '-fstack-clash-protection', '-fcf-protection', '-fPIC', '-fwrapv', '-O2', '-g', '-fexceptions', '-fstack-protector-strong', '-grecord-gcc-switches', '-m64', '-mtune=generic', '-fasynchronous-unwind-tables', '-fstack-clash-protection', '-fcf-protection', '-fPIC', '-fwrapv', '-I/usr/include/python3.8', '-DPYTHONDIR="/usr/local/lib/python3.8/site-packages"', '-DPYTHONARCHDIR="/usr/local/lib64/python3.8/site-packages"', '-D_GNU_SOURCE', '-DDYNAMIC_ANNOTATIONS_ENABLED=1', '-DNDEBUG', '-D_GNU_SOURCE', '../test.cpp', '-c', '-o/builddir/build/BUILD/python-wxpython4-4.0.4/python3/build/waf/3.8/gtk3/.conf_check_1c6b03a74ebec564757f8a7c923132ce/testbuild/test.cpp.1.o']
[2/2] Linking build/waf/3.8/gtk3/.conf_check_1c6b03a74ebec564757f8a7c923132ce/testbuild/testprog

['/usr/bin/g++', '-fPIC', '-fPIC', 'test.cpp.1.o', '-o/builddir/build/BUILD/python-wxpython4-4.0.4/python3/build/waf/3.8/gtk3/.conf_check_1c6b03a74ebec564757f8a7c923132ce/testbuild/testprog', '-Wl,-Bstatic', '-Wl,-Bdynamic', '-L/usr/lib64', '-lcrypt', '-lpthread', '-ldl', '-lutil', '-lm', '-lm', '-lcrypt', '-lpthread', '-ldl', '-lutil', '-lm', '-lm']
err: /usr/bin/ld: test.cpp.1.o: in function `main':
/builddir/build/BUILD/python-wxpython4-4.0.4/python3/build/waf/3.8/gtk3/.conf_check_1c6b03a74ebec564757f8a7c923132ce/testbuild/../test.cpp:14: undefined reference to `Py_Initialize'
/usr/bin/ld: /builddir/build/BUILD/python-wxpython4-4.0.4/python3/build/waf/3.8/gtk3/.conf_check_1c6b03a74ebec564757f8a7c923132ce/testbuild/../test.cpp:15: undefined reference to `Py_Finalize'
collect2: error: ld returned 1 exit status

Comment 5 Miro Hrončok 2019-05-16 11:14:38 UTC
I also see this in the log:

LIBPL = '/usr/lib64/python3.8/config--x86_64-linux-gnu'

This should probably be:


Comment 6 Scott Talbert 2019-05-17 03:03:54 UTC
@Miro - it looks like that LIBPL is coming from python itself:

<mock-chroot> sh-5.0# python3 -c "from distutils.sysconfig import get_config_var; print(get_config_var('LIBPL'))"

Looking at strace of that, it appears to be looking at /usr/lib64/python3.8/_sysconfigdata__linux_x86_64-linux-gnu.py.

<mock-chroot> sh-5.0# grep LIBPL /usr/lib64/python3.8/_sysconfigdata__linux_x86_64-linux-gnu.py
 'LIBPL': '/usr/lib64/python3.8/config--x86_64-linux-gnu',

Comment 7 Miro Hrončok 2019-05-17 09:47:50 UTC
Victor, this might be relevant to the "m" removal. Could you please look at this with very high priority? Thanks.

Comment 8 Miro Hrončok 2019-05-17 09:59:22 UTC
Just for the record:

Those are the actual files:


This is a result of python3 -c "from distutils.sysconfig import get_config_var; print(get_config_var('LIBPL'))":


Comment 9 Miro Hrončok 2019-05-17 10:21:05 UTC
Unpatched upstream at v3.8.0a4:

  $ ./configure && make -j
  $ grep LIBPL build/lib.linux-x86_64-3.8/_sysconfigdata__linux_x86_64-linux-gnu.py
   'LIBPL': '/usr/local/lib/python3.8/config-3.8-x86_64-linux-gnu',

With our patches at fedora-3.8.0a4, i'm unable to run ./configure && make -j - apparently, our patch doesn't work without setting all the other things we set during the build :(

Comment 10 Miro Hrončok 2019-05-17 10:33:00 UTC
[cpython ((fedora-3.8.0a4))]$ ./configure --enable-shared && make -j
[cpython ((fedora-3.8.0a4))]$ grep LIBPL build/lib.linux-x86_64-3.8/_sysconfigdata__linux_x86_64-linux-gnu.py
 'LIBPL': '/usr/local/lib64/python3.8/config--x86_64-linux-gnu',

Comment 11 Miro Hrončok 2019-05-17 11:34:59 UTC
I've talked to Victor on IRC and we found the cause of he problem.

Fix in https://src.fedoraproject.org/rpms/python38/pull-request/20 - needs a review.

Comment 12 Miro Hrončok 2019-05-17 14:09:30 UTC
<mock-chroot> sh-5.0# python3 -c "from distutils.sysconfig import get_config_var; print(get_config_var('LIBPL'))"
<mock-chroot> sh-5.0# file /usr/lib64/python3.8/config-3.8-x86_64-linux-gnu
/usr/lib64/python3.8/config-3.8-x86_64-linux-gnu: directory

Comment 13 Scott Talbert 2019-05-17 14:14:27 UTC
Okay, I'll have another look tonight.

Comment 14 Miro Hrončok 2019-05-17 14:27:19 UTC
Note that a new copr build of wxpytho4 failed again, so I'm running it in mock locally to get the new config.log.

Comment 15 Miro Hrončok 2019-05-17 14:29:27 UTC
Created attachment 1570152 [details]

Comment 16 Scott Talbert 2019-05-17 14:49:13 UTC
I didn't test this with the latest python3.8 build, but with the previous version, it appears that 'python3-config --ldflags' isn't including the python libraries in the output.

Comment 17 Miro Hrončok 2019-05-17 15:04:57 UTC
That is a deliberate change, see https://docs.python.org/dev/whatsnew/3.8.html#debug-build-uses-the-same-abi-as-release-build

$ python3.8-config --ldflags
 -L/usr/lib64  -lcrypt -lpthread -ldl  -lutil -lm -lm 

$ python3.7-config --ldflags
 -L/usr/lib64 -lpython3.7m -lcrypt -lpthread -ldl  -lutil -lm  -Xlinker -export-dynamic

Comment 18 Scott Talbert 2019-05-18 01:00:05 UTC
This might be blocked by https://bugs.python.org/issue36721.  It seems that WAF wants to test building an embedded application, so it needs those flags.  I don't think wxPython needs that, so I'm trying to see if I can work around it in wxPython.

Comment 19 Scott Talbert 2019-05-18 19:02:24 UTC
Fixed, built fine locally using copr mock config.

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