Package: libopenblas-base
Version: 0.2.8-2
Severity: important
Tags: upstream
Dear Maintainer,
I am using openblas on debian wheezy and linked my programs explicitly (for
benchmarking purpose and not to run update-alternatives as root everytime)
using
$ export LD_LIBRARY_PATH=/usr/lib/openblas-base/
$ gcc -o test.openblas -L/usr/lib/openblas-base test.c -lopenblas
and got an binary which depends on libopenblas.so.
Now we update to Debian Testing/Jessie and the following happened:
$ export LD_LIBRARY_PATH=/usr/lib/openblas-base/
$ gcc -o test.openblas -L/usr/lib/openblas-base test.c -lopenblas
$ ldd test.openblas
linux-gate.so.1 (0xb76e5000)
libblas.so.3 => /usr/lib/libblas.so.3 (0xb65d5000)
libc.so.6 => /lib/i386-linux-gnu/i686/cmov/libc.so.6 (0xb6426000)
libm.so.6 => /lib/i386-linux-gnu/i686/cmov/libm.so.6 (0xb63e2000)
libpthread.so.0 => /lib/i386-linux-gnu/i686/cmov/libpthread.so.0
(0xb63c7000)
/lib/ld-linux.so.2 (0xb76e6000)
which does not any longer include Openblas directly and forces to use the
update-alternative system. I figured out that this behavior was introduced to
solve bug #687349 ( see the libblas3-soname.patch). I think this behavior is
not helpful for every day live. In contrast if a want to do the same using
ATLAS I can link againf libf77blas and libatlas and it works without this
issue.
I think there must be another solution to solve bug #687349 without this "bad"
soname trick. In case of ATLAS there is a separate library which contains all
dependencies to ATLAS but it still allows to use ATLAS explicitly overriding
the update-alternatives system.
*** Please consider answering these questions, where appropriate ***
* What led up to the situation?
* What exactly did you do (or not do) that was effective (or
ineffective)?
* What was the outcome of this action?
* What outcome did you expect instead?
*** End of the template - remove these lines ***
-- System Information:
Debian Release: jessie/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 3.10-3-686-pae (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages libopenblas-base depends on:
ii libc6 2.17-93
libopenblas-base recommends no packages.
Versions of packages libopenblas-base suggests:
ii liblapack3 3.4.2+dfsg-4
-- no debconf information
#include <stdio.h>
#include <stdlib.h>
double dnrm2_(int * N, double * X, int * INCX);
int main ( int argc, char ** argv )
{
double A[2]={2,2};
int INCX = 1;
int N = 2;
printf("nrm2 = %lg", dnrm2_(&N,A,&INCX));
return 0;
}
