treewide: use blas and lapack

This makes packages use lapack and blas, which can wrap different
BLAS/LAPACK implementations.

treewide: cleanup from blas/lapack changes

A few issues in the original treewide:

- can’t assume blas64 is a bool
- unused commented code

pkgs/tools/misc/hpl/default.nix

@@ -1,4 +1,6 @@
-{ stdenv, fetchurl, openblasCompat, mpi } :
+{ stdenv, fetchurl, blas, lapack, mpi } :
+
+assert (!blas.is64bit) && (!lapack.is64bit);
 
 stdenv.mkDerivation rec {
   pname = "hpl";
@@ -18,7 +20,7 @@ stdenv.mkDerivation rec {
     install -D testing/ptest/HPL.dat $out/share/hpl/HPL.dat
   '';
 
-  buildInputs = [ openblasCompat mpi ];
+  buildInputs = [ blas lapack mpi ];
 
   meta = with stdenv.lib; {
     description = "Portable Implementation of the Linpack Benchmark for Distributed-Memory Computers";
@@ -28,4 +30,3 @@ stdenv.mkDerivation rec {
     maintainers = [ maintainers.markuskowa ];
   };
 }
-