qrupdate: migrate from homebrew/science

Closes #15836.

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

Formula/qrupdate.rb

@@ -0,0 +1,36 @@
+class Qrupdate < Formula
+  desc "Fast updates of QR and Cholesky decompositions"
+  homepage "https://sourceforge.net/projects/qrupdate/"
+  url "https://downloads.sourceforge.net/qrupdate/qrupdate-1.1.2.tar.gz"
+  sha256 "e2a1c711dc8ebc418e21195833814cb2f84b878b90a2774365f0166402308e08"
+
+  depends_on :fortran
+  depends_on "veclibfort"
+
+  def install
+    # Parallel compilation not supported. Reported on 2017-07-21 at
+    # https://sourceforge.net/p/qrupdate/discussion/905477/thread/d8f9c7e5/
+    ENV.deparallelize
+
+    system "make", "lib", "solib", "FC=#{ENV.fc}",
+                   "BLAS=-L#{Formula["veclibfort"].opt_lib} -lvecLibFort"
+
+    # Confuses "make install" on case-insensitive filesystems
+    rm "INSTALL"
+
+    # BSD "install" does not understand GNU -D flag.
+    # Create the parent directory ourselves.
+    inreplace "src/Makefile", "install -D", "install"
+    lib.mkpath
+
+    system "make", "install", "PREFIX=#{prefix}"
+    pkgshare.install "test/tch1dn.f", "test/utils.f"
+  end
+
+  test do
+    ENV.fortran
+    system ENV.fc, "-o", "test", pkgshare/"tch1dn.f", pkgshare/"utils.f",
+                   "-L#{lib}", "-lqrupdate", "-lvecLibFort"
+    assert_match "PASSED   4     FAILED   0", shell_output("./test")
+  end
+end

tap_migrations.json

@@ -50,7 +50,6 @@
   "pdf-tools": "dunn/emacs",
   "pebble-sdk": "pebble/pebble-sdk",
   "pocl": "homebrew/science",
-  "qrupdate": "homebrew/science",
   "quassel": "caskroom/cask",
   "salt": "homebrew/science",
   "shark": "homebrew/science",