Re: [Gretl-users] trouble building gretl with custom lapack

On Thu, 18 Aug 2011, Skipper Seabold wrote: > On Thu, Aug 18, 2011 at 5:32 PM, Allin Cottrell <cottrell(a)wfu.edu&gt; wrote: >> On Thu, 18 Aug 2011, Skipper Seabold wrote: >> >>> Trying to install gretl 1.9.5 from source due to the known seg faults >>> in the downstream ubuntu 11.04 repositories. I have all the >>> dependencies installed, except my lapack (3.2.2) was built with ATLAS >>> (3.9.2) with the same version of gcc I have installed. The lapack >>> stuff seems to be giving me troubles, though I'm not too sure why. >> >> No doubt this should be better documented, but if you want to build >> gretl against atlas you should use the LAPACK_LIBS environment >> variable. For example: >> >> LAPACK_LIBS='-L/your/atlas/lib -llapack -lf77blas -lcblas -latlas' \ >> ./configure <options> >> >> You can't just replace -lblas with -lcblas, because more libraries >> are needed with an atlas build, including crucially libatlas. > > Right, I neglected to mention that I also tried to edit configure to link > against atlas, cblas, f77blas, etc. to the same effect about the hidden > symbol. > > Are you saying that all I need to do is define LAPACK_LIBS as such and then > run configure, or do I still need the with-lapack-prefix as well?? Just use LAPACK_LIBS; the lapack-prefix thing is only for use where you have the standard "-llapack -lblas" linkage, but are using a non-standard installation directory.

> [...] it fails to build, saying it can't find lblas "lblas"? Looks like a typo?

I'll take another look on the host where I'm building against atlas and report back.