Color.h:
#ifdef PLATFORM_WIN32
struct RGBA : Moveable<RGBA> {
        byte b, g, r, a;
};
#endif

#ifdef PLATFORM_POSIX
#ifdef CPU_BE
struct RGBA : Moveable<RGBA> {
        byte a, r, g, b;
};
#else
struct RGBA : Moveable<RGBA> {
        byte b, g, r, a;
};
#endif
#endif

#ifndef PLATFORM_WIN32

/Users/lundman/src/upp/uppsrc/plugin/bmp/bmphdr.h: In member function 'void Upp::BMP_FILEHEADER::SwapEndian()':
/Users/lundman/src/upp/uppsrc/plugin/bmp/bmphdr.h:18: error: no matching function for call to 'Upp::BMP_FILEHEADER::SwapEndian(Upp::word&)
        '
/Users/lundman/src/upp/uppsrc/plugin/bmp/bmphdr.h:15: note: candidates are: void Upp::BMP_FILEHEADER::SwapEndian()
/Users/lundman/src/upp/uppsrc/plugin/bmp/bmphdr.h:19: error: no matching function for call to 'Upp::BMP_FILEHEADER::SwapEndian(Upp::dword&
        )'

etc