Multiple paths with single build configuration

Hi

I am looking to configure a single TC Build configuration which can take care of triggering builds for any commits in SVN. For e.g. with below SVN structure

-svn

- Proj1

    - P1.cs

    - Proj1.csproj

    - Proj.sln

- Proj2

    - P2.cs

    - Proj2.csproj

    - Proj2.sln

Now if someone commits P1.cs to SVN, it should build Proj1.sln in TC and if someone commits P2.cs it should build Proj2.sln using a single Build confgiration.I know we can configure separate build configuration for each .sln file in SVN, but I am trying to avoid having multiple build configs

Any pointers would be really helpful.

Thanks!