#define _GNU_SOURCE #cmakedefine HAVE_FDATASYNC #cmakedefine HAVE_SYNC_FILE_RANGE #cmakedefine HAVE_O_DIRECT #cmakedefine HAVE_GCC_ATOMICS #cmakedefine HAVE_PTHREAD_STACK_MIN #cmakedefine HAVE_ALLOCA_H #cmakedefine HAVE_TDESTROY #ifndef HAVE_PTHREAD_STACK_MIN #define PTHREAD_STACK_MIN 32768 // wild guess. #endif