sundials: migrate from homebrew/science

Closes #16832.

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

Formula/sundials.rb

@@ -0,0 +1,45 @@
+class Sundials < Formula
+  desc "Nonlinear and differential/algebraic equations solver"
+  homepage "https://computation.llnl.gov/casc/sundials/main.html"
+  url "https://computation.llnl.gov/projects/sundials/download/sundials-2.7.0.tar.gz"
+  sha256 "d39fcac7175d701398e4eb209f7e92a5b30a78358d4a0c0fcc23db23c11ba104"
+  revision 2
+
+  option "with-openmp", "Enable OpenMP multithreading"
+
+  depends_on "cmake" => :build
+  depends_on "suite-sparse"
+  depends_on "veclibfort"
+  depends_on :fortran
+  depends_on :mpi => [:cc, :f77, :recommended]
+
+  needs :openmp if build.with?("openmp")
+
+  def install
+    blas = "-L#{Formula["veclibfort"].opt_lib} -lvecLibFort"
+    args = std_cmake_args + %W[
+      -DCMAKE_C_COMPILER=#{ENV["CC"]}
+      -DBUILD_SHARED_LIBS=ON
+      -DKLU_ENABLE=ON
+      -DKLU_LIBRARY_DIR=#{Formula["suite-sparse"].opt_lib}
+      -DKLU_INCLUDE_DIR=#{Formula["suite-sparse"].opt_include}
+      -DLAPACK_ENABLE=ON
+      -DLAPACK_LIBRARIES=#{blas};#{blas}
+    ]
+    args << "-DOPENMP_ENABLE=ON" if build.with? "openmp"
+    args << "-DMPI_ENABLE=ON" if build.with? "mpi"
+
+    mkdir "build" do
+      system "cmake", "..", *args
+      system "make", "install"
+    end
+  end
+
+  test do
+    cp Dir[prefix/"examples/nvector/serial/*"], testpath
+    system ENV.cc, "-I#{include}", "test_nvector.c", "sundials_nvector.c",
+                   "test_nvector_serial.c", "-L#{lib}", "-lsundials_nvecserial"
+    assert_match "SUCCESS: NVector module passed all tests",
+                 shell_output("./a.out 42 0")
+  end
+end

tap_migrations.json

@@ -52,7 +52,6 @@
   "shark": "homebrew/science",
   "slicot": "homebrew/science",
   "sqlitebrowser": "caskroom/cask",
-  "sundials": "homebrew/science",
   "tetgen": "homebrew/science",
   "ticcutils": "homebrew/science",
   "timbl": "homebrew/science",