msvcrt: Implement _local_unwind for x86_64.
diff --git a/dlls/msvcr90/msvcr90.spec b/dlls/msvcr90/msvcr90.spec
index 5f09767..1bb525d 100644
--- a/dlls/msvcr90/msvcr90.spec
+++ b/dlls/msvcr90/msvcr90.spec
@@ -678,6 +678,7 @@
@ cdecl _lfind(ptr ptr ptr long ptr) msvcrt._lfind
@ stub _lfind_s
@ cdecl _loaddll(str) msvcrt._loaddll
+@ cdecl -arch=x86_64 _local_unwind(ptr ptr) msvcrt._local_unwind
@ cdecl -i386 _local_unwind2(ptr long) msvcrt._local_unwind2
@ cdecl -i386 _local_unwind4(ptr ptr long) msvcrt._local_unwind4
@ cdecl _localtime32(ptr) msvcrt._localtime32