Make a simulator+device .a file with headers

makefatlib.sh

# http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4

TARGET_NAME=<< name of your target or an environment variable >>

CONFIGURATION=Release
DEVICE=iphoneos
SIMULATOR=iphonesimulator
FAT=universal
OUTPUT=build
LIBRARY_NAME=lib${TARGET_NAME}.a
HEADERS_DIR_NAME=headers

for sdk in ${DEVICE} ${SIMULATOR}
do
  xcodebuild -sdk $sdk -configuration ${CONFIGURATION} -target ${TARGET_NAME} -verbose
done

device_output=${OUTPUT}/${CONFIGURATION}-${DEVICE}
simulator_output=${OUTPUT}/${CONFIGURATION}-${SIMULATOR}
fatlib_output=${OUTPUT}/${CONFIGURATION}-${FAT}

rm -rf "${fatlib_output}"
mkdir -p "${fatlib_output}"
lipo -create -output "${fatlib_output}/${LIBRARY_NAME}" "${device_output}/${LIBRARY_NAME}" "${simulator_output}/${LIBRARY_NAME}"

headers_dir="${fatlib_output}/${HEADERS_DIR_NAME}"
mkdir -p "${headers_dir}"
cp ${TARGET_NAME}/*.h "${headers_dir}"

open "${fatlib_output}"