Here it is:

andrew@andrew-apple-laptop:~/dealii-8.3.0/build$ ls -l /usr/lib/liblapack*
lrwxrwxrwx 1 root root 29 Sep 21 11:54 /usr/lib/liblapack.a -> 
/etc/alternatives/liblapack.a
lrwxrwxrwx 1 root root 28 Nov 23  2015 /usr/lib/liblapack_atlas.a -> 
atlas-base/liblapack_atlas.a
lrwxrwxrwx 1 root root 29 Nov 23  2015 /usr/lib/liblapack_atlas.so -> 
atlas-base/liblapack_atlas.so
lrwxrwxrwx 1 root root 31 Nov 23  2015 /usr/lib/liblapack_atlas.so.3 -> 
atlas-base/liblapack_atlas.so.3
lrwxrwxrwx 1 root root 30 Sep 21 11:54 /usr/lib/liblapack.so -> 
/etc/alternatives/liblapack.so
lrwxrwxrwx 1 root root 32 Sep 15 12:19 /usr/lib/liblapack.so.3 -> 
/etc/alternatives/liblapack.so.3
lrwxrwxrwx 1 root root 34 Sep 15 15:51 /usr/lib/liblapack.so.3gf -> 
/etc/alternatives/liblapack.so.3gf



On Thursday, September 22, 2016 at 1:16:27 PM UTC-4, Wolfgang Bangerth 
wrote:
>
> On 09/22/2016 11:13 AM, Andrew Lambe wrote: 
> > I'm trying to include the bundled UMFPACK package in my deal.II 
> > installation, but when I switch the options DEAL_II_WITH_LAPACK and 
> > DEAL_II_WITH_UMFPACK on, I get a weird error from CMake that the LAPACK 
> > library is not detected. I say weird because I have installed BLAS and 
> > LAPACK in the default location /usr/lib (via Ubuntu packages). If I 
> > switch these options off, the configuration and compile run without 
> > issue. Specifying the directory via the LAPACK_DIR option doesn't help. 
> > 
> > Unfortunately, I need UMFPACK to run some of my existing examples so I 
> > want those options to be on. I recently upgraded my Ubuntu version via a 
> > fresh install, so this could be the source of the issue, (missing 
> > package, broken link, etc.) but I'm having trouble chasing it down. 
> > 
> > I have included the terminal output with the above options off 
> > (terminal_out_ok.txt) and on (terminal_out_bad.txt) as well as the error 
> > logs for the second case. Any help would be appreciated. 
>
> Andrew, 
> can you post the output of 
>    ls -l /usr/lib/liblapack* 
> or of 
>    ls -l /usr/lib64/liblapack* 
> depending on whether you have a 32 or 64 bit system? 
>
> Best 
>   W. 
>
> -- 
> ------------------------------------------------------------------------ 
> Wolfgang Bangerth          email:                 bang...@colostate.edu 
> <javascript:> 
>                             www: http://www.math.colostate.edu/~bangerth/ 
>

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