Add patch to support FreeBSD 9 and 10 in GYP.

Without this patch GYP will attempt to build v8 for Linux which will
fail due to missing headers.

Rakefile

@@ -18,6 +18,10 @@ task :checkout do
     sh "git checkout #{V8_Version} -f"
     sh "#{make} dependencies"
   end
+
+  # Fix gyp trying to build platform-linux on FreeBSD 9 and FreeBSD 10.
+  # Based on: https://chromiumcodereview.appspot.com/10079030/patch/1/2
+  sh "patch -N -d vendor/v8 < patches/add-freebsd9-and-freebsd10-to-gyp-GetFlavor.patch"
 end
 
 desc "compile v8 via the ruby extension mechanism"

patches/add-freebsd9-and-freebsd10-to-gyp-GetFlavor.patch

@@ -0,0 +1,11 @@
+--- build/gyp/pylib/gyp/common.py.orig	2012-05-12 15:36:46.235280559 +0100
++++ build/gyp/pylib/gyp/common.py	2012-05-12 15:37:10.315754125 +0100
+@@ -355,6 +355,8 @@
+     'sunos5': 'solaris',
+     'freebsd7': 'freebsd',
+     'freebsd8': 'freebsd',
++    'freebsd9': 'freebsd',
++    'freebsd10': 'freebsd',
+   }
+   flavor = flavors.get(sys.platform, 'linux')
+   return params.get('flavor', flavor)