Take advantage of the server's ability to prepend the right directory name
and append the right extension to make the resulting file multilib-safe.

diff -ru slapi-nis-0.8.5/doc/nis-plugin.ldif.in slapi-nis-0.8.5/doc/nis-plugin.ldif.in
--- slapi-nis-0.8.5/doc/nis-plugin.ldif.in	2008-12-08 14:00:53.000000000 -0500
+++ slapi-nis-0.8.5/doc/nis-plugin.ldif.in	2008-12-09 11:18:13.000000000 -0500
@@ -3,7 +3,7 @@
 objectclass: nsSlapdPlugin
 objectclass: extensibleObject
 cn: NIS Server
-nsslapd-pluginpath: @myplugindir@/nisserver-plugin.so
+nsslapd-pluginpath: nisserver-plugin
 nsslapd-plugininitfunc: nis_plugin_init
 nsslapd-plugintype: object
 nsslapd-pluginenabled: on
diff -ru slapi-nis-0.8.5/doc/sch-plugin.ldif.in slapi-nis-0.8.5/doc/sch-plugin.ldif.in
--- slapi-nis-0.8.5/doc/sch-plugin.ldif.in	2008-12-08 14:00:53.000000000 -0500
+++ slapi-nis-0.8.5/doc/sch-plugin.ldif.in	2008-12-09 11:18:21.000000000 -0500
@@ -3,7 +3,7 @@
 objectclass: nsSlapdPlugin
 objectclass: extensibleObject
 cn: Schema Compatibility
-nsslapd-pluginpath: @myplugindir@/schemacompat-plugin.so
+nsslapd-pluginpath: schemacompat-plugin
 nsslapd-plugininitfunc: schema_compat_plugin_init
 nsslapd-plugintype: object
 nsslapd-pluginenabled: on