add stub builder

tasks/extconf.rake

@@ -0,0 +1,13 @@
+namespace :extconf do
+  desc "Compiles the Ruby extension"
+  task :compile
+end
+
+task :compile => "extconf:compile"
+
+task :test => :compile
+
+BIN = "*.{bundle,jar,so,obj,pdb,lib,def,exp}"
+$hoe.clean_globs |= ["ext/**/#{BIN}", "lib/**/#{BIN}", 'ext/**/Makefile']
+$hoe.spec.require_paths = Dir['{lib,ext/*}']
+$hoe.spec.extensions = FileList["ext/**/extconf.rb"].to_a

tasks/extconf/stub.rake

@@ -0,0 +1,43 @@
+namespace :extconf do
+  extension = File.basename(__FILE__, '.rake')
+
+  ext = "ext/#{extension}"
+  ext_so = "#{ext}/#{extension}.#{Config::CONFIG['DLEXT']}"
+  ext_files = FileList[
+    "#{ext}/*.c",
+    "#{ext}/*.h",
+    "#{ext}/*.rl",
+    "#{ext}/extconf.rb",
+    "#{ext}/Makefile",
+    # "lib"
+  ]
+
+
+  task :compile => extension do
+    if Dir.glob("**/#{extension}.{o,so,dll}").length == 0
+      STDERR.puts "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
+      STDERR.puts "Gem actually failed to build.  Your system is"
+      STDERR.puts "NOT configured properly to build #{GEM_NAME}."
+      STDERR.puts "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
+      exit(1)
+    end
+  end
+
+  desc "Builds just the #{extension} extension"
+  task extension.to_sym => ["#{ext}/Makefile", ext_so ]
+
+  file "#{ext}/Makefile" => ["#{ext}/extconf.rb"] do
+    Dir.chdir(ext) do ruby "extconf.rb" end
+  end
+
+  file ext_so => ext_files do
+    Dir.chdir(ext) do
+      sh(PLATFORM =~ /win32/ ? 'nmake' : 'make') do |ok, res|
+        if !ok
+          require "fileutils"
+          FileUtils.rm Dir.glob('*.{so,o,dll,bundle}')
+        end
+      end
+    end
+  end
+end