obspy installation issues

Users Mailing List Archive
#1

I've been wrestling with various installation issues on a couple of
different platforms, the latest being CentOS.

I'm using easy_install to build obspy, and I keep getting messages like:

ERROR: C compiler not found! Retrying now without C support.
ERROR: gfortran compiler not found! Retrying now without FORTRAN support.

The confusing part is that I do have both compilers installed on the
system, in standard locations:
[mhearne@igskcicgvmcache ~]$ which gcc
/usr/bin/gcc
[mhearne@igskcicgvmcache ~]$ which gfortran
/usr/bin/gfortran

Is there a way to tell easy_install or the obspy setup script where
my compilers are installed?

Thanks,

Mike

#2

Hi Mike,

normally the installer should be able to find your compilers (esp. since
they are in default global locations). You could try to get a more
meaningful error message (the try/except in there might shadow the real
problem) by taking line 696 in setup.py (I assume you are installing
0.8.3) and remove the whole "while" block around it from 693-731 (and
shifting it to the same indent as 691).

I don't have a CentOS Box at hand right now, I could set one up if you
continue to have problems though (and nobody else can share experiences
from that distro).

best,
Tobias

#3

Tobias - I'm attaching a build log. One of the first lines in here is:

/usr/bin/ld: cannot find -lpython2.7
collect2: ld returned 1 exit status

I can't find Python.h anywhere under the Enthought Canopy distribution
- is that related?

--Mike

build.log (5.07 KB)

#4

Mike, at first I was confused because I didn't think we need Python
development files for compiling ObsPy. And, indeed I think we don't --
but looking at your log, they are needed to build a dependency, namely
sqlalchemy (which we depend on for obspy.db I think).
So, yes I think your problem would be resolved by installing the Python
headers.

best,
Tobias