Merge pull request #1 from nicolasnoble/bin-gems

Few fixes.

ruby/Rakefile

@@ -20,11 +20,17 @@ else
   Rake::ExtensionTask.new("protobuf_c", spec) do |ext|
     ext.ext_dir = "ext/google/protobuf_c"
     ext.lib_dir = "lib/google"
+    ext.cross_compile = true
+    ext.cross_platform = [
+      'x86-mingw32', 'x64-mingw32',
+      'x86_64-linux', 'x86-linux',
+      'universal-darwin'
+    ]
   end
 
   task 'gem:windows' do
     require 'rake_compiler_dock'
-    RakeCompilerDock.sh "bundle && rake cross native gem"
+    RakeCompilerDock.sh "bundle && rake cross native gem RUBY_CC_VERSION=2.3.0:2.2.2:2.1.6"
   end
 end
 

ruby/google-protobuf.gemspec

@@ -8,11 +8,11 @@ Gem::Specification.new do |s|
   s.authors     = ["Protobuf Authors"]
   s.email       = "protobuf@googlegroups.com"
   s.require_paths = ["lib"]
-  s.files       = `git ls-files -z`.split("\x0").find_all{|f| f =~ /lib\/.+\.rb/}
+  s.files       = Dir.glob('lib/**/*.rb')
   if RUBY_PLATFORM == "java"
     s.files     += ["lib/google/protobuf_java.jar"]
   else
-    s.files     += `git ls-files "*.c" "*.h" extconf.rb Makefile`.split
+    s.files     += Dir.glob('ext/**/*')
     s.extensions= ["ext/google/protobuf_c/extconf.rb"]
     s.add_development_dependency "rake-compiler-dock"
   end