I can see two main ways to install pike, one is after compiling the source, and the second using a binary package.
In the first case, the output of the compilation should IMHO respect the users umask. And that for all files the same wheter compiled, installed or dumped. Whereas in the package management system, the package manager is responsible (because he is responible for the deployment to actually work after installation according to the package management rules). In this case the dumped files should be the same as the installed sources / files.
