lang/python27 and threads option

[wen heping]

Would you test removing files/patch-Makefile.pre.in ?

wen

2011/6/28 wen heping <wenheping at gmail.com>:
> It is caused by building libpython without -pthread, I shall try to fix it.
>
> I am wondering why there is not a run error when "python -m threading"
>
> wen
>
> 2011/6/28 Rainer Hurling <rhurlin at gwdg.de>:
>> (Crossposting to python@, because I am not sure which is the right list in
>> this case. Sorry, if this is not OK)
>>
>> Yesterday math/saga got updated. Now there is a new option for python
>> bindings to the SAGA GIS api. This worked well with version 2.7.1 of
>> lang/python27 until yesterday.
>>
>> I tried to build math/saga after upgrading to Python version 2.7.2 from
>> today, but it stops in the configure. As far as I understand the math/saga
>> configure script has a problem with the 'consistency check of all components
>> of python development environment', see config.log (line 1347).
>>
>> -----------------------------------------
>> configure:16297: checking consistency of all components of python
>> development environment
>> configure:16323: cc -o conftest -O2 -pipe -I/usr/local/include
>> -fno-strict-aliasing  -I/usr/local/include/python2.7  -L/usr/local/lib
>> conftest.c  -L/usr/local/lib/python2.7/config -lpython2.7
>> -Wl,--export-dynamic  -lutil >&5
>> /usr/local/lib/libpython2.7.so: undefined reference to `pthread_create'
>> -----------------------------------------
>>
>> This does not happen, if Python 2.7.2 was build _without_ option 'THREADS'.
>> Then SAGA GIS builds fine.
>>
>>
>> Listing the dynamic object dependencies of the Python library, there is a
>> vital difference between Python 2.7.1 and 2.7.2.
>>
>> Python 2.7.1, build _with_ option 'THREADS':
>> ldd /usr/local/lib/libpython2.7.so
>> /usr/local/lib/libpython2.7.so:
>>        libutil.so.9 => /lib/libutil.so.9 (0x413ac000)
>>        libm.so.5 => /lib/libm.so.5 (0x415bd000)
>>        libthr.so.3 => /lib/libthr.so.3 (0x417de000)
>>        libc.so.7 => /lib/libc.so.7 (0x4084a000)
>>
>> Python 2.7.2, build _with_ option 'THREADS':
>> ldd /usr/local/lib/libpython2.7.so
>> /usr/local/lib/libpython2.7.so:
>>        libutil.so.9 => /lib/libutil.so.9 (0x413ac000)
>>        libm.so.5 => /lib/libm.so.5 (0x415bd000)
>>        libc.so.7 => /lib/libc.so.7 (0x4084a000)
>>
>> It seems that Python does not include libthr.so.3 in version 2.7.2. Is this
>> intentional? Is there any other way to use the threaded version of Python
>> now?
>>
>> Any help would be really appreciated.
>>
>> Thanks in advance,
>> Rainer Hurling
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>