superlu: migrate from homebrew/science

Closes #16623.

Signed-off-by: FX Coudert <fxcoudert@gmail.com>

Formula/superlu.rb

@@ -0,0 +1,49 @@
+class Superlu < Formula
+  desc "Solve large, sparse nonsymmetric systems of equations"
+  homepage "http://crd-legacy.lbl.gov/~xiaoye/SuperLU/"
+  url "http://crd-legacy.lbl.gov/~xiaoye/SuperLU/superlu_5.2.1.tar.gz"
+  sha256 "28fb66d6107ee66248d5cf508c79de03d0621852a0ddeba7301801d3d859f463"
+  revision 2
+
+  option "with-openmp", "Enable OpenMP multithreading"
+
+  depends_on "openblas" => :optional
+  depends_on "veclibfort" if build.without? "openblas"
+
+  needs :openmp if build.with? "openmp"
+
+  def install
+    ENV.deparallelize
+    cp "MAKE_INC/make.mac-x", "./make.inc"
+
+    if build.with? "openblas"
+      blas = "-L#{Formula["openblas"].opt_lib} -lopenblas"
+    else
+      blas = "-L#{Formula["veclibfort"].opt_lib} -lvecLibFort"
+    end
+
+    args = ["SuperLUroot=#{buildpath}",
+            "SUPERLULIB=$(SuperLUroot)/lib/libsuperlu.a",
+            "CC=#{ENV.cc}",
+            "CFLAGS=-fPIC #{ENV.cflags}",
+            "BLASLIB=#{blas}"]
+    args << "LOADOPTS=-fopenmp" if build.with?("openmp")
+
+    system "make", "lib", *args
+    lib.install Dir["lib/*"]
+    (include/"superlu").install Dir["SRC/*.h"]
+    doc.install Dir["Doc/*"]
+
+    # Source and data for test
+    pkgshare.install "EXAMPLE/dlinsol.c"
+    pkgshare.install "EXAMPLE/g20.rua"
+  end
+
+  test do
+    system ENV.cc, pkgshare/"dlinsol.c", "-o", "test",
+                   "-I#{include}/superlu", "-L#{lib}", "-lsuperlu",
+                   "-L#{Formula["veclibfort"].opt_lib}", "-lvecLibFort"
+    assert_match "No of nonzeros in L+U = 11886",
+                 shell_output("./test < #{pkgshare}/g20.rua")
+  end
+end