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

On Thu, Aug 18, 2011 at 7:13 PM, Allin Cottrell <cottrell(a)wfu.edu&gt; wrote: > 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. That's what I thought. It doesn't look like the LAPACK_LIBS options are being passed to the compiler, but I haven't gone through the configure script in great detail. >> [...] it fails to build, saying it can't find lblas > > "lblas"? Looks like a typo? This is why I changed -lblas to -lcblas and tried to add the other libraries. I have libcblas.*, libf77blas.*, etc. but when I run configure, it just tries the -llapack -lblas options instead of the LAPACK_LIBS.