grep '^\s*#\s*\(include\|import\)' ${file.absolutePath} >__tmp_include.cpp
    grep -v '^\s*#\s*\(include\|import\)\b' ${file.absolutePath} >__tmp_code.cpp
    touch __tmp_preprocessed.cpp
    if [ -s __tmp_code.cpp ]
    then
        $preprocessCommand __tmp_code.cpp | grep -v ^# >__tmp_preprocessed.cpp
    fi
    cat __tmp_include.cpp >${outputDir.absolutePath}/${file.name}
    cat __tmp_preprocessed.cpp >>${outputDir.absolutePath}/${file.name}
    rm __tmp_*.cpp