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/development/libraries/science/math/superlu/default.nix

@@ -1,5 +1,7 @@
 { stdenv, fetchurl, cmake,
-  gfortran, openblasCompat}:
+  gfortran, blas, lapack}:
+
+assert (!blas.is64bit) && (!lapack.is64bit);
 
 stdenv.mkDerivation rec {
   version = "5.2.1";
@@ -12,7 +14,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ cmake gfortran ];
 
-  propagatedBuildInputs = [ openblasCompat ];
+  propagatedBuildInputs = [ blas ];
 
   cmakeFlags = [
     "-DBUILD_SHARED_LIBS=true"
@@ -20,7 +22,6 @@ stdenv.mkDerivation rec {
   ];
 
   patches = [
-    ./find-openblas-library.patch
     ./add-superlu-lib-as-dependency-for-the-unit-tests.patch
   ];
 

pkgs/development/libraries/science/math/superlu/find-openblas-library.patch

@@ -1,11 +0,0 @@
---- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -75,6 +75,8 @@ set(CMAKE_C_FLAGS_RELEASE "-O3" CACHE STRING "")
- ######################################################################
- #
- #--------------------- BLAS ---------------------
-+find_package(OpenBLAS)
-+set(TPL_BLAS_LIBRARIES ${OpenBLAS_LIBRARIES})
- if(NOT enable_blaslib)
-   if (TPL_BLAS_LIBRARIES)
-     set(BLAS_FOUND TRUE)