Index: /trunk/src/VBox/HostServices/auth/Makefile.kmk
===================================================================
--- /trunk/src/VBox/HostServices/auth/Makefile.kmk	(revision 35506)
+++ /trunk/src/VBox/HostServices/auth/Makefile.kmk	(revision 35507)
@@ -21,5 +21,7 @@
 # The plugin.
 ifndef VBOX_ONLY_SDK
- DLLS += VBoxAuth
+ if ("$(KBUILD_TARGET)" != "linux" && "$(KBUILD_TARGET)" != "solaris") || defined(VBOX_WITH_PAM)
+  DLLS += VBoxAuth
+ endif
 endif
 VBoxAuth_TEMPLATE = VBOXR3