--- /dev/null
+Linux oplock support is conditional on HAVE_KERNEL_OPLOCKS_LINUX,
+not plain old LINUX.
+
+http://websvn.samba.org/cgi-bin/viewcvs.cgi?rev=23962&view=rev
+--- source/modules/vfs_default.c.orig 2010-09-06 17:37:48.256826182 +0200
++++ source/modules/vfs_default.c 2010-09-06 17:38:25.300843377 +0200
+@@ -813,10 +813,11 @@
+
+ START_PROFILE(syscall_linux_setlease);
+
+-#ifdef LINUX
++#ifdef HAVE_KERNEL_OPLOCKS_LINUX
+ /* first set the signal handler */
+- if(linux_set_lease_sighandler(fd) == -1)
++ if(linux_set_lease_sighandler(fd) == -1) {
+ return -1;
++ }
+
+ result = linux_setlease(fd, leasetype);
+ #else