Lib change leads to larger executables

[Walter Bright]

Sean Kelly wrote:
> For some reason I thought an optimizing linker worked at a segment 
> level, but I suppose that is not true for data in a library?  In other 
> words, since libraries are indexed by module name, I suppose this means 
> they are necessarily dealt with at module granularity instead?

The linker works at the .obj file level.