Comment by jacquesm

Funny thing: I never liked shared libraries. There is something fundamental about them that is broken: it changes the execution context from the one that you had when you were testing your code prior to shipping. The space savings argument only made sense for a little while, what they should have done instead is build a much better linker that only includes the smallest subset of code that your program should have access to. That as well as a predefined set of file system bits which system calls you are allowed to make and which you are not.