How to set the "search" path?

[sgsong]

I am trying to get lazarus to work with a numerical library called "tpmath". I need to put the library into the search path in order to compile the demo program, but could not figure out where to put it. Thanks for any advices.

[Lightning]

In your app's folder is a good place, if it's good and works ok then send it to the mailing list.

[sgsong]

Looks like can put it in \projects\compiler options\paths\other unit files.