ia64 doesn't have old and new versions of the umount system call.
It just has the new version.
Fixes this build warning:
<stdin>:395:2: warning: #warning syscall umount2 not implemented
Signed-off-by: Tony Luck <tony.luck@intel.com>
#define __IGNORE_utime /* utimes() */
#define __IGNORE_getpgrp /* getpgid() */
#define __IGNORE_vfork /* clone() */
+#define __IGNORE_umount2 /* umount() */
#define __ARCH_WANT_SYS_RT_SIGACTION
#define __ARCH_WANT_SYS_RT_SIGSUSPEND