compiling

Good evening, As a yellow boned user of eAthena, a friend of mine that always comes over to ask me to help him out with server errors since Jesus's Birth, has come today once more showing me this. CC inter.cinter.c: In function âgeoip_initâ:inter.c:487: error: âerrnoâ undeclared (first...

Is there anyone having a problem compiling a fresh checked out server with cygwin? Haven't experience this error with CentOS and MSVC++ 2010.