Hi. You must give som more info if we should be able to help you
- which repo?
- which file did you change and how? What did you expect to happen? What happened?
- Is the makefile part of the repo? Or did you do it yourself?
If you want to post some code in the forum. Please do it like this: How to post code on this forum
Sorry about the mountain of questions but it is really hard to help someone without knowing more details.