# Combine lib files for various platforms into one lipo -create libPseudoFramework dev.a libPseudoFramework sim.a -output libResultBinary.a Step to Execute the command: Create a folder Put both the binary on that folder Open Termial Goto that folder Execute the command You will get new binary file # remove existing product lib file, just in case rm -rf build/${BUILD_STYLE}-iphoneos/libPseudoFramework-${BUILD_STYLE}.a Help Link For More Detail: http://dev.byteclub.com/blog/1-iphone-sdk/48-how-to-almost-create-your-own-iphone-os-framework