Does anyone builded the liboping to M$-Windows?

[WillianBR]

Does anyone builded the liboping to M$-Windows?

I took a pick into the code and what I found out are headers who doesn't have support in most of build system on Windows.
My guess I should use cygwin or use the "MSYS2 64-bit MinGW".

#if HAVE_UNISTD_H
# include <unistd.h>
#endif

#if HAVE_FCNTL_H
# include <fcntl.h>
#endif
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif

Does anyone did it or I have to do from scratch!