lang/python27 and threads option

[Rainer Hurling]

Am 28.06.2011 04:16 (UTC+1) schrieb wen heping:
> Would you test removing files/patch-Makefile.pre.in ?

After removing files/patch-Makefile.pre.in and than building 
lang/python27 works for math/saga (with option PYTHON) again :-)

Thanks a lot,
Rainer

> 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