vbackup: fix compilation on NetBSD (thanks Álvaro Jurado)
On NetBSD 5.0 and upper, mount() require
data_len as a fifth argument.
LGTM=rsc
R=rsc
CC=elbingmiss
https://codereview.appspot.com/111600043
diff --git a/src/cmd/vbackup/mount-BSD.c b/src/cmd/vbackup/mount-BSD.c
index 2d320b6..63841b5 100644
--- a/src/cmd/vbackup/mount-BSD.c
+++ b/src/cmd/vbackup/mount-BSD.c
@@ -63,6 +63,10 @@
na.acdirmax = 600;
#endif
mflag = MNT_RDONLY|MNT_NOSUID|MNT_NOATIME|MNT_NODEV;
+#ifdef __NetBSD__
+ if(mount("nfs", mtpt, mflag, &na, sizeof(na)) < 0)
+#else
if(mount("nfs", mtpt, mflag, &na) < 0)
+#endif
sysfatal("mount: %r");
}