On Wed, Feb 19, 2014 at 8:30 AM, chaouche yacine
yacinechaou...@yahoo.comwrote:
What I was trying to accomplish
---
I tried to upgrade numpy
# pip install --upgrade
numpy.../chaouche/build/numpy/numpy/numarray/_capi.c:198:undefined
reference to `log10' collect2: ld returned 1 exit status error: Command
gcc -pthread -shared -Wl,--as-needed -Wl,--no-undefined -Wl,-z,relro
-Wl,-O1 -Wl,--build-id -Wl,--enable-new-dtags
build/temp.linux-i686-2.7/numpy/numarray/_capi.o -L/usr/lib
-Lbuild/temp.linux-i686-2.7 -lpython2.7 -o
build/lib.linux-i686-2.7/numpy/numarray/_capi.so failed with exit status 1
Rolling back uninstall of numpy
Replacing /usr/lib/python2.7/site-packages/numpy-1.6.1-py2.7.egg-info
Command /usr/bin/python -c import
setuptools;__file__='/home/chaouche/build/numpy/setup.py';exec(compile(open(__file__).read().replace('\r\n',
'\n'), __file__, 'exec')) install --single-version-externally-managed
--record /tmp/pip-lppaDW-record/install-record.txt failed with error code 1
Exception information:
Traceback (most recent call last):
...
InstallationError: Command /usr/bin/python -c import
setuptools;__file__='/home/chaouche/build/numpy/setup.py';exec(compile(open(__file__).read().replace('\r\n',
'\n'), __file__, 'exec')) install --single-version-externally-managed
--record /tmp/pip-lppaDW-record/install-record.txt failed with error code 1
What the problem was
I eventually figured out that they didn't link to the math library
where all those symbols where defined (log10, sqrt, sincos etc.). I
found that out by manually trying the gcc command with the -lm flag and
it compiled fine.
My question
What files do I need to edit in order to add this -lm flag and install
numpy correctly ?
numpy build links against the math library when needed, your problem most
likely comes from somewhere else.
You should contact the numpy mailing list, and post your full build log
there (not just the last lines).
David
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