Created attachment 360486 [details] sci-libs:umfpack-5.6.2:20131009-112408.log Emerging sci-libs/umfpack-5.6.2 fails with the error messages: [...] checking for Fortran 77 name-mangling scheme... lower case, underscore, no extra underscore checking for BLAS... no checking if sgemm_ is being linked in already... no checking for sgemm_ in -lopenblas... no checking for ATL_xerbla in -latlas... no checking for sgemm_ in -lblas... no checking for sgemm_ in -lmkl_intel_lp64... no checking for sgemm_ in -lmkl... no checking for sgemm_ in -framework vecLib... no checking for sgemm_ in -lcxml... no checking for sgemm_ in -ldxml... no checking for sgemm_ in -lscs... no checking for sgemm_ in -lcomplib.sgimath... no checking for sgemm_ in -lblas... (cached) no checking for sgemm_ in -lblas... (cached) no configure: error: Cannot find blas libraries [...]
Created attachment 360488 [details] Output of "emerge --info"
did you setup blas correctly?
From the build log: /tmp/portage/sci-libs/umfpack-5.6.2/work/umfpack-5.6.2/configure --prefix=/usr --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --libdir=/usr/lib64 --disable-silent-rules --disable-dependency-tracking --docdir=/usr/share/doc/umfpack-5.6.2 --enable-shared --disable-static --with-blas= --without-doc --with-cholmod So it is very likely that no blas is eselected at this point in time. There should have been one selected when cholmod was built. Otherwise cholmod would have failed at configuration too.
(In reply to Justin Lecher from comment #2) > did you setup blas correctly? Probably not. I just want to install sci-mathematics/scilab to use in my Computer Programming classes. I am not directly interested in the multiple versions of BLAS and LAPACK available with Gentoo/Linux, and I know almost nothing about them. Therefore I just added the science overlay to portage and tried to emerge scilab. The process stopped with the problem reported in this bug. I see that sci-libs/blas-reference-20120925 and virtual/blas-2.1 have been installed as dependencies, but no message has been sent to the log telling that blas has to be setup correctly. Maybe it would be good idea to add a post installation message in sci-libs/blas-reference or virtual/blas instructing how to setup blas correctly.
(In reply to Francois Bissey from comment #3) > From the build log: > /tmp/portage/sci-libs/umfpack-5.6.2/work/umfpack-5.6.2/configure > --prefix=/usr --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu > --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share > --sysconfdir=/etc --localstatedir=/var/lib --libdir=/usr/lib64 > --disable-silent-rules --disable-dependency-tracking > --docdir=/usr/share/doc/umfpack-5.6.2 --enable-shared --disable-static > --with-blas= --without-doc --with-cholmod > > So it is very likely that no blas is eselected at this point in time. There > should have been one selected when cholmod was built. Otherwise cholmod > would have failed at configuration too. In fact eselecting blas fixes the issue. I think that this should have been told in the post installation messages for blas.
