This is a list of dependencies that must be installed before a package build. You can append "make" after a dependency to mark a package is only required during the build process of a package. Packages marked as a make dependency can be removed after the build. There are also "test" dependencies. These dependencies are only installed if either the ‘CPT_TEST’ is set to 1, or the build is run with the ‘-t’ or ‘--test’ options. So, a package package could have the following ‘depends’ file:
linux-headers make python test zlib