diff options
Diffstat (limited to 'unix/configure.ac')
| -rw-r--r-- | unix/configure.ac | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/unix/configure.ac b/unix/configure.ac index bafb970..b43da6d 100644 --- a/unix/configure.ac +++ b/unix/configure.ac @@ -300,6 +300,37 @@ if test $tcl_ok = no; then AC_DEFINE(NO_FD_SET, 1, [Do we have fd_set?]) fi +#------------------------------------------------------------------------ +# Options for the notifier. Checks for epoll(7) on Linux, and +# kqueue(2) on {DragonFly,Free,Net,Open}BSD +#------------------------------------------------------------------------ + +AC_MSG_CHECKING([for advanced notifier support]) +case x`uname -s` in + xLinux) + AC_MSG_RESULT([epoll(7)]) + AC_CHECK_HEADERS([sys/epoll.h], + [AC_DEFINE(NOTIFIER_EPOLL, [1], [Is epoll(7) supported?])]) + AC_CHECK_HEADERS([sys/eventfd.h], + [AC_DEFINE(HAVE_EVENTFD, [1], [Is eventfd(2) supported?])]);; + xDragonFlyBSD|xFreeBSD|xNetBSD|xOpenBSD) + AC_MSG_RESULT([kqueue(2)]) + # Messy because we want to check if *all* the headers are present, and not + # just *any* + tcl_kqueue_headers=x + AC_CHECK_HEADERS([sys/types.h sys/event.h sys/time.h], + [tcl_kqueue_headers=${tcl_kqueue_headers}y]) + AS_IF([test $tcl_kqueue_headers = xyyy], [ + AC_DEFINE(NOTIFIER_KQUEUE, [1], [Is kqueue(2) supported?])]);; + xDarwin) + # Assume that we've got CoreFoundation present (checked elsewhere because + # of wider impact). + AC_MSG_RESULT([OSX]);; + *) + AC_DEFINE_UNQUOTED(NOTIFIER_SELECT) + AC_MSG_RESULT([none]);; +esac + #------------------------------------------------------------------------------ # Find out all about time handling differences. #------------------------------------------------------------------------------ |