-if pposix._VERSION ~= want_pposix_version then module:log("warn", "Unknown version (%s) of binary pposix module, expected %s", tostring(pposix._VERSION), want_pposix_version); end
+if pposix._VERSION ~= want_pposix_version then
+ module:log("warn", "Unknown version (%s) of binary pposix module, expected %s. Perhaps you need to recompile?", tostring(pposix._VERSION), want_pposix_version);
+end