How to use a debug thridparty lib?

I know a method, change bDebugBuildsActuallyUseDebugCRT in BuildConfiguartion.xml
<BuildConfiguration>
<bDebugBuildsActuallyUseDebugCRT>true</bDebugBuildsActuallyUseDebugCRT>
</BuildConfiguration>

but this is a global setting, i want to use debug lib per module.
So, how to change this setting per module?
Thanks.