[Matplotlib-users] Matplotlib Installation Question on Centos 7

[Thomas Caswell]

Can you use the local version of python to run setup.py?  It is not clear
to me what version of python you are compiling with.

Does the patch in https://github.com/matplotlib/matplotlib/pull/13064 help?

Failing that, as it looks like you are building matplotlib as part of an
integrated enviroment, I suggest patching `setup.py` and `setup_ext.py`
until it works...

Tom

On Thu, Mar 7, 2019 at 12:13 PM Slavin, Jonathan <jslavin at cfa.harvard.edu>
wrote:

> Hi Peter,
>
> I'm working on a CentOS 7 system. I can't answer your question directly,
> but I would advise installing anaconda. It makes all this stuff much
> simpler and keeps your local environment cleanly separated from the system
> wide one.
>
> Regards,
> Jon
>
>
>> Date: Thu, 7 Mar 2019 11:36:09 +0000
>> From: Peter Chiu - UKRI STFC <peter.chiu at stfc.ac.uk>
>> To: "matplotlib-users at python.org" <matplotlib-users at python.org>
>> Subject: [Matplotlib-users] Matplotlib Installation Question on Centos
>>         7
>> Message-ID: <f9072eaff66a4015b6117b295bc06da3 at stfc.ac.uk>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> Hello,
>>
>> This is a novice question and hopefully someone can advise.
>>
>> In order to support a software package for the LOFAR project,
>> I am trying to install Matplotlib on a centos 7 system:
>>
>>    python setup.py build_ext
>> --include-dirs=/usr/local/lofar3_2/local/release/include
>>
>> it complains at the point:
>>
>> g++ -pthread -shared build/temp.linux-x86_64-2.7/src/_ttconv.o \
>> build/temp.linux-x86_64-2.7/ttconv/pprdrv_tt.o   \
>> build/temp.linux-x86_64-2.7/ttconv/pprdrv_tt2.o \
>> build/temp.linux-x86_64-2.7/ttconv/ttutil.o           \
>> -L/usr/local/lib -L/usr/lib -L/usr/local/lib64 -L/usr/lib64 \
>> -L/usr/local/lofar3_2/local/release/lib -lpython2.7 \
>> -o build/lib.linux-x86_64-2.7/matplotlib/ttconv.so
>> /usr/local/lib/libpython2.7.a(posixmodule.o): In function `posix_tmpnam':
>> /usr/local/lofar/python/src/Python-2.7.8/./Modules/posixmodule.c:7575:
>> warning:
>> the use of `tmpnam_r' is dangerous, better use `mkstemp'
>> /usr/local/lib/libpython2.7.a(posixmodule.o): In function `posix_tempnam':
>> /usr/local/lofar/python/src/Python-2.7.8/./Modules/posixmodule.c:7522:
>> warning:
>> the use of `tempnam' is dangerous, better use `mkstemp'
>> /usr/bin/ld: /usr/local/lib/libpython2.7.a(abstract.o): \
>> relocation R_X86_64_32 against `.rodata.str1.8' can not be used when
>> making a shared object; recompile with -fPIC
>> ...
>> /usr/bin/ld: /usr/local/lib/libpython2.7.a(getcompiler.o): \
>> relocation R_X86_64_32 against `.rodata.str1.8' can not be used when
>> making a shared object; recompile with -fPIC
>> /usr/bin/ld: final link failed: Nonrepresentable section on output
>> collect2: error: ld returned 1 exit status
>> error: command 'g++' failed with exit status 1
>>
>> Prior to that, I have already installed a local version of python in a
>> separate folder.
>> If I then manually move the switch
>>
>> -L/usr/local/lofar3_2/local/release/lib \
>>
>> before
>>
>> -L/usr/local/lib
>>
>> it will then pick up the local library, and it will compile okay.
>>
>> So my question is how to specify a local version of python library
>> to be used as preference as part of the python setup.py build_ext command.
>>
>> I have tried the switch -library-dirs=..., --library=, and -rpath=
>> but none of them will make my local python library in preference
>> to that under /usr/local/lib.
>>
>> Much grateful for any advice can be given.
>>
>> Regards,
>>
>> Peter
>>
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>
>
> --
> Jonathan D. Slavin
> Astrophysicist - High Energy Astrophysics Division
> Center for Astrophysics | Harvard & Smithsonian
> Office: (617) 496-7981 | Cell: (781) 363-0035
> 60 Garden Street | MS 83 | Cambridge, MA 02138
>
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-- 
Thomas Caswell
tcaswell at gmail.com
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