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

[jralls ceridwen fremont ca us]

> On Sep 5, 2022, at 1:21 PM, Pascal <p p14 orange fr> wrote:
>
> > Le 5 sept. 2022 à 06:38, jralls ceridwen fremont ca us a écrit :
> >
> > > On Sep 4, 2022, at 12:04 PM, Pascal <p p14 orange fr> wrote:
> > >
> > > > Le 1 sept. 2022 à 03:06, john <jralls ceridwen us> a écrit :
> > > >
> > > > > On Aug 31, 2022, at 3:18 AM, Pascal <p p14 orange fr> wrote:
> > > > >
> > > > > > 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 
> > >
> > > <...>
> > >
> > > > > 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?
> > > >
> > > > Pascal,
> > > >
> > > > Not The Console, /Applications/Utilities/Console.app. Select Crash Reports from the sidebar. You'll find 
> > > > a list of programs that have crashed. Double click one and it will display a nice report with a stack 
> > > > trace.
> > > >
> > > > But you got there with lldb, so that's OK.
> > > >
> > > > You could rebuild python with --with-pydebug. That will enable that _Py_EnsureTstateNotNULL function 
> > > > call and presumably avoid the crash. It might also provide some info about why tstate was NULL and lead 
> > > > to either a solution or at least something that you can feed back to the libxml2 folks.
> > >
> > > Hello,
> > >
> > > Console Crash Reports and option --with-pydebug even with -O0 -g haven't brought any more clues.
> > >
> > > I've continued my investigations by reordering the instructions:
> > > (building pygments e.g. python is placed after building meta-gtk-osx-bootstrap)
> > >
> > > % jhbuild bootstrap-gtk-osx
> > > % jhbuild build meta-gtk-osx-bootstrap
> > > % jhbuild build pygments
> > > % jhbuild build meta-gtk-osx-gtk3
> > >
> > > And then no errors, good, but no explanations as well.
> >
> > In that setup is libsml2 building its python bindings with the virteznv's libpython instead of the built 
> > one's?
>
> I guess yes:
>
> *** Configuring libxml2 *** [5/9]
> ...
> /Users/me/2022c/src-2022/libxml2-2.9.12/configure --prefix /Users/me/2022c/xnadalib-2022 
> --libdir="$JHBUILD_LIBDIR" --with-python  
> --with-python-install-dir=/Users/me/2022c/xnadalib-2022/lib/python3.10/site-packages 
> ...
> Found python in environment 
> PYTHON=/Users/me/2022c/src-2022/.new_local/share/virtualenvs/etc-dUtCZYA0/bin/python3
> Found Python version 3.10
> ...

That's also 3.10.2, right? So there must be something in your jhbuild environment that's causing that python 
to be different somehow. A CPython developer might be able to point you at exactly what based on the crash 
location.

Regards,
John Ralls
Pi0b@1reachD