Hi, misc/objects.c:363: error: EFD_CLOEXEC undeclared (first use in this function) I do have eventfd.h but : cat /usr/include/sys/eventfd.h | grep EFD_CLOEXEC -> nothing. I found it (EFD_CLOEXEC) in : /usr/src/linux-headers-2.6.27-11/include/linux/eventfd.h I don't know what's wrong here... ? Regards. Seb.