2.8.3. The nfsmountable Macro

Using a Software Collection macro nfsmountable allows you to change values for the _sysconfdir, _sharedstatedir, and _localstatedir macros so that your Software Collection can have its state files and configuration files located outside the Software Collection's /opt file system hierarchy. This makes the files easier to manage and is also required when using your Software Collection over NFS.
If you do not need support for Software Collections over NFS, using nfsmountable is optional but recommended. For more information, see Section 3.1, “Using Software Collections over NFS”.