CFLAGS="$CFLAGS -D_GNU_SOURCE"
# Checks for header files.
-AC_CHECK_HEADERS([arpa/inet.h netdb.h netinet/in.h stdlib.h string.h sys/socket.h unistd.h windows.h winsock2.h])
+AC_CHECK_HEADERS([arpa/inet.h netdb.h netinet/in.h stdlib.h string.h sys/socket.h unistd.h windows.h winsock2.h sys/epoll.h sys/event.h])
# Checks for typedefs, structures, and compiler characteristics.