Cocos2d-x v3.3対応版

Rakefile

# 事前にTARGETS > Build Settings > Architecturesに'i386'を追加する
PROJECT_PATH = "../cocos2d/build/cocos2d_libs.xcodeproj"
TARGET_NAME="'libcocos2d iOS'"
OUTPUT_DEBUG="tmp/iphonesimulator"
OUTPUT_RELEASE="tmp/iphoneos"
OUTPUT_LIB="../lib"

desc "静的ライブラリをビルドします"
task "lib" do
    sh "xcodebuild -project #{PROJECT_PATH} -configuration Release -sdk iphonesimulator7.1 -target #{TARGET_NAME} TARGET_BUILD_DIR=../../build/#{OUTPUT_DEBUG} BUILT_PRODUCTS_DIR=../../build/#{OUTPUT_DEBUG} clean build"

    sh "xcodebuild -project #{PROJECT_PATH} -configuration Release -sdk iphoneos7.1 -target #{TARGET_NAME} TARGET_BUILD_DIR=../../build/#{OUTPUT_RELEASE} BUILT_PRODUCTS_DIR=../../build/#{OUTPUT_RELEASE} clean build"
end

desc "lipoコマンドで各デバイス向けの静的ライブラリをひとつのバイナリにします"
task "lipo" do

    Dir.glob("#{OUTPUT_RELEASE}/*"){|path|
        p path
        file = File.basename(path)

        sh "lipo '#{OUTPUT_DEBUG}/#{file}' '#{OUTPUT_RELEASE}/#{file}' -create -output '#{OUTPUT_LIB}/#{file}'"
    }
end

$ rake task libが通りそうな雰囲気まで確認した