[Matplotlib-users] Matplotlib Installation Question on Centos 7

[Slavin, Jonathan]

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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