[PATCH 5/5] ntdll: Use xsavec in x86_64 syscall dispatcher.

[Jacek Caban]

Signed-off-by: Jacek Caban <jacek(a)codeweavers.com>
---
  dlls/ntdll/unix/signal_x86_64.c |  5 ++++-
  dlls/ntdll/unix/system.c        |  6 ++++++
  include/winternl.h              |  1 +
  tools/winebuild/import.c        | 13 ++++++++++++-
  4 files changed, 23 insertions(+), 2 deletions(-)