gmt 4.5.7

Add a Generic Mapping Tools Formula

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Formula/gmt.rb

@@ -0,0 +1,31 @@
+require 'formula'
+
+class Gshhs < Formula
+  url 'ftp://ftp.soest.hawaii.edu/gmt/gshhs-2.2.0.tar.bz2'
+  homepage 'http://gmt.soest.hawaii.edu/'
+  md5 'db98bff37adc0d51fdf0ffa3834d45ad'
+end
+
+class Gmt < Formula
+  url 'ftp://ftp.soest.hawaii.edu/gmt/gmt-4.5.7.tar.bz2'
+  homepage 'http://gmt.soest.hawaii.edu/'
+  md5 'fc8a4a546ff8572c225aa7bdb56bbdf8'
+
+  depends_on 'netcdf'
+
+  def install
+    # we need -j1 to prevent make dependency errors
+    ENV.j1
+
+    system "./configure", "--datadir=#{share}/#{name}",
+                          "--enable-netcdf=#{HOMEBREW_PREFIX}",
+                          "--enable-shared", "--enable-triangle",
+                          "--disable-xgrid", "--disable-mex",
+                          "--prefix=#{prefix}"
+    system "make"
+    system "make install-gmt"
+    system "make install-data"
+
+    Gshhs.new.brew { (share+name).install Dir['share/*'] }
+  end
+end