Any way to stop Eclipse CDT build?

I'm attempting to build a project in Eclipse CDT and the build process fails early on, but then takes minutes to finish computing and finally quit.

How, through the Eclipse IDE, can I stop the build process.

I know there must be some way because I can delete any random file from the Project Explorer and a box pops up with the processes and I can click the red box next to build and it quits. But I shouldn't be required to delete a random file to get that box to pop up. Where is it?