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Re: [gtk-osx-users] ITSTool building error with Python built before.



Le 30 août 2022 à 18:18, john <jralls ceridwen us> a écrit :


On Aug 30, 2022, at 8:31 AM, Pascal <p p14 orange fr> wrote:


Le 16 août 2022 à 22:11, John Ralls <jralls ceridwen us> a écrit :


On Aug 16, 2022, at 1:03 PM, Pascal <p p14 orange fr> wrote:


Le 16 août 2022 à 02:09, john <jralls ceridwen us> a écrit :


On Aug 15, 2022, at 9:13 AM, Pascal <p p14 orange fr> wrote:

Hello,

I've made a fresh gtk-osx install with:
jhbuild bootstrap-gtk-osx
jhbuild build pygments
jhbuild build meta-gtk-osx-bootstrap

I've got this error:

*** Configuring libxml2 *** [5/9]
...
/Users/me/2022a/src-2022/libxml2-2.9.12/configure --prefix /Users/me/2022a/xnadalib-2022 
--libdir="$JHBUILD_LIBDIR" --with-python  
--with-python-install-dir=/Users/me/2022a/xnadalib-2022/lib/python3.10/site-packages
...
*** Configuring itstool *** [7/9]
...
checking whether /Users/me/2022a/src-2022/.new_local/share/virtualenvs/etc-Mg3srn31/bin/python3 
version is >= 2.6... yes
...
checking for python module libxml2... /Users/me/2022a/src-2022/itstool-2.0.6/configure: line 2604: 
59919 Done                    echo "import $py_module"
59920 Segmentation fault: 11  | $PYTHON - >&/dev/null
not found
configure: error: Python module libxml2 is needed to run this package
*** Error during phase configure of itstool: ########## Error running 
/Users/me/2022a/src-2022/itstool-2.0.6/configure --prefix /Users/me/2022a/xnadalib-2022    *** [7/9]

itstool configure is unfortunately using $PYTHON:
   if test -n "$PYTHON"; then
 # If the user set $PYTHON, use it and don't search something else.

which is set to (in jhbuild env):
PYTHON=/Users/me/2022a/src-2022/.new_local/share/virtualenvs/etc-Mg3srn31/bin/python3

This PYTHON variable wasn't set in January'22 the last time I ran jhbuild.
Thus itstool was built ok.

What could be a workaround?



The most straightforward is to add
module_extra_env['itstool'] = ('PYTHON' : os.env.path(prefix, 'bin', 'python3'))
to your jhbuildrc-custom.


Thanks John for your quick answer,

My thinking was erroneous, sorry, the error is not that python doesn't find libxml2 like:
ModuleNotFoundError: No module named 'libxml2'

Whatever the PYTHON value is, as PYTHONPATH is set with ${prefix}/lib/python3.10/site-packages then 
libxml2 is successfully found but provoques a Segmentation fault.

It was ok last time with python 3.9:
bld% ./xnadalib-2021/bin/python            
Python 3.9.2 (default, Jan  9 2022, 11:56:26) 
[Clang 13.0.0 (clang-1300.0.29.3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.

import libxml2



But not with python 3.10:
bld% ./xnadalib-2022/bin/python3
Python 3.10.2 (main, Aug 15 2022, 12:49:45) [Clang 13.1.6 (clang-1316.0.21.2.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.

import libxml2

zsh: segmentation fault  ./xnadalib-2022/bin/python3

Both built libxml2 have same version.

I don't find any relevant help on Google.
libxml2 is a too long story :-( sorry to bother you with that.


Not quite enough information there, but as a guess you didn't rebuild libxml2 with the new python so it's 
linked to libpython3.9.dylib instead of libpython3.10.dylib.


Hello John,

I ran again all the installation (2022b) from the beginning but I got the same error.
My configuration:
Prefix is /Users/me/2022b/xnadalib-2022
% uname -v           
Darwin Kernel Version 21.6.0: Wed Aug 10 14:25:27 PDT 2022; root:xnu-8020.141.5~2/RELEASE_X86_64
% xcodebuild -version 
Xcode 13.4.1
Build version 13F100
% java -version      
java version "14" 2020-03-17
Java(TM) SE Runtime Environment (build 14+36-1461)
Java HotSpot(TM) 64-Bit Server VM (build 14+36-1461, mixed mode, sharing)

The offending file si libxml2mod.so imported by libxml2.py:
% ls ./xnadalib-2022/lib/python3.10/site-packages
Pygments-2.9.0-py3.10.egg-info/ libxml2mod.a
README.txt                      libxml2mod.so*
__pycache__/                    pkg_resources/
_distutils_hack/                pygments/
distutils-precedence.pth        setuptools/
drv_libxml2.py                  setuptools-58.1.0.dist-info/
libxml2.py

% ./xnadalib-2022/bin/python3
Python 3.10.2 (main, Aug 30 2022, 11:48:18) [Clang 13.1.6 (clang-1316.0.21.2.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.

import libxml2mod

zsh: segmentation fault  ./xnadalib-2022/bin/python3

But this file is well bound against Python 3.10:
% otool -L ./xnadalib-2022/lib/python3.10/site-packages/libxml2mod.so
./xnadalib-2022/lib/python3.10/site-packages/libxml2mod.so:
     /Users/me/2022b/xnadalib-2022/lib/libxml2.2.dylib (compatibility version 12.0.0, current version 
12.12.0)
     /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1311.100.3)
     /Users/me/2022b/xnadalib-2022/lib/libz.1.dylib (compatibility version 1.0.0, current version 1.2.12)
     /Users/me/2022b/xnadalib-2022/lib/liblzma.5.dylib (compatibility version 8.0.0, current version 8.5.0)
     /usr/lib/libiconv.2.dylib (compatibility version 7.0.0, current version 7.0.0)
     /Users/me/2022b/xnadalib-2022/lib/libpython3.10.dylib (compatibility version 3.10.0, current version 
3.10.0)
     /Users/me/2022b/xnadalib-2022/lib/libintl.8.dylib (compatibility version 11.0.0, current version 
11.0.0)
     /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 
150.0.0, current version 1858.112.0)

I provide these details in case that they might help.
Else what could help?


I sure hope that java doesn't have anything to do with anything!

There should be a crash report in Console with what segfaulted and a stack trace. What does that say?


Nothing relevant in the console but some lldb gives:

% lldb ./xnadalib-2022/bin/python3
(lldb) target create "./xnadalib-2022/bin/python3"
Current executable set to '/Users/me/2022b/xnadalib-2022/bin/python3' (x86_64).
(lldb) run
Process 12477 launched: '/Users/me/2022b/xnadalib-2022/bin/python3' (x86_64)
Python 3.10.2 (main, Aug 30 2022, 11:48:18) [Clang 13.1.6 (clang-1316.0.21.2.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.

import libxml2

libpython3.10.dylib was compiled with optimization - stepping may behave oddly; variables may not be 
available.
Process 12477 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x10)
    frame #0: 0x00000001039359ab libpython3.10.dylib`PyModule_Create2 [inlined] _PyInterpreterState_GET at 
pycore_pystate.h:117:20 [opt]
   114  #ifdef Py_DEBUG
   115      _Py_EnsureTstateNotNULL(tstate);
   116  #endif
-> 117      return tstate->interp;
   118  }
   119  
   120  
Target 0: (python3) stopped.
(lldb) frame variable 
(PyThreadState *) tstate = NULL
(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x10)
  * frame #0: 0x00000001039359ab libpython3.10.dylib`PyModule_Create2 [inlined] _PyInterpreterState_GET at 
pycore_pystate.h:117:20 [opt]
    frame #1: 0x000000010393599d libpython3.10.dylib`PyModule_Create2(module=0x000000010313c110, 
module_api_version=1013) at moduleobject.c:176:34 [opt]
    frame #2: 0x00000001031059d9 libxml2mod.so`PyInit_libxml2mod + 25
    frame #3: 0x00000001006d8b72 libpython3.10.dylib`_PyImport_LoadDynamicModuleWithSpec + 530

What would you advice to go further?

Thanks, Pascal.
https://blady.pagesperso-orange.fr
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