Gentoo Archives: gentoo-science

From: Thomas Kahle <tomka@g.o>
To: gentoo-science@l.g.o
Subject: Re: [gentoo-science] is numpy using the old lapack interface?
Date: Wed, 31 Oct 2012 18:04:21
Message-Id: 20121031172431.GQ22436@schlaumatte
In Reply to: Re: [gentoo-science] is numpy using the old lapack interface? by Francois Bissey
1 Hi again,
2
3 this thing is somewhat mysterious.
4
5 On 07:27 Tue 30 Oct 2012, Francois Bissey wrote:
6 > > x86_64-pc-linux-gnu-gcc: numpy/core/blasdot/_dotblas.c
7 > > /usr/bin/gfortran -Wall -Wl,-O1 -Wl,--as-needed -Wl,--hash-style=gnu -shared build-3.2/temp.linux-x86_64-3.2/numpy/core/blasdot/_dotblas.o -L/usr/lib64 -L/usr/lib64 -Lbuild-3.2/temp.linux-x86_64-3.2 -lblas -lpython3.2 -lgfortran -o build-3.2/lib.linux-x86_64-3.2/numpy/core/_dotblas.cpython-32.so
8 > > /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.4/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lblas
9 > > collect2: ld returned 1 exit status
10
11
12 What happens here is that some setup.py calls gfortran with -lblas
13 instead of what is in site.cfg. I tried various grep's across the
14 source tree, but I don't understand how this happens :(
15
16 Any ideas?
17
18
19
20 > It is already supposed to use pkg-config. My numpy 1.5.1 is linked
21 > against openblas with python-2.7.3. However I don't appear to have
22 > dotblas at all in numpy with python 3.2 so there may be an issue
23 > when compiling against python 3.2 - I will have to check my build logs.
24 >
25 > Did it compile against python 2.7 normally?
26 >
27 > Francois
28 >
29 >
30
31 --
32 Thomas Kahle
33 http://dev.gentoo.org/~tomka/

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