Page History

...

We also need to define information about the packages we want to link with.  This information is used in other makefiles, for example your application's Makefile.  Defining these do not themselves cause a link to occur.

<package_name>_PACKAGE_NAME is not required but we use it just to make defining the other macros easier.  It defines the directory name for the package behind $PACKAGE_SITE_TOP.

<package_name>_VERSION is not required but we use it to make changing package versions easier.  It defines the directory behind the package name directory.

<package_name>_TOP defines where the top directory of the package exists.  This directory should contain a build and src directory.

...