Merge pull request #4 from mahrud/gfan

gfan 0.6.2 (new formula)

Formula/gfan.rb

@@ -0,0 +1,31 @@
+class Gfan < Formula
+  desc "Grobner fans and tropical varieties"
+  homepage "https://users-math.au.dk/~jensen/software/gfan/gfan.html"
+  url "https://users-math.au.dk/~jensen/software/gfan/gfan0.6.2.tar.gz"
+  sha256 "a674d5e5dc43634397de0d55dd5da3c32bd358d05f72b73a50e62c1a1686f10a"
+  license "GPL-2.0-or-later"
+  revision 1
+
+  depends_on "[email protected]"
+  depends_on "[email protected]"
+  depends_on "gmp"
+
+  patch do
+    url "https://raw.githubusercontent.com/Macaulay2/M2/d51564127d757a3132684e9730f4085cb89297bb/M2/libraries/gfan/patch-0.6.2"
+    sha256 "9ebbf25e6de16baec877050bef69c85504e7bfa81e79407c2ab00ea4433e838c"
+  end
+
+  def install
+    system "make", "-j4", "cddnoprefix=yes",
+           "GMP_LINKOPTIONS=-L#{Formula["gmp"].lib} -lgmp",
+           "GMP_INCLUDEOPTIONS=-I#{Formula["gmp"].include}",
+           "OPTFLAGS=-DGMPRATIONAL -I#{Formula["[email protected]"].include}/cddlib",
+           "CLINKER=#{ENV.cc} -L#{Formula["[email protected]"].lib}",
+           "CCLINKER=#{ENV.cxx} -L#{Formula["[email protected]"].lib}"
+    system "make", "PREFIX=#{prefix}", "install"
+  end
+
+  test do
+    system "#{bin}/gfan", "_version"
+  end
+end