[stabbles]

It sounds interesting, but I think it's better if a linker could resolve dependencies of static libraries like it's done with shared libraries. Then you can update individual files without having to worry about outdated symbols in these merged files.

[tux3]

If you mean updating some dependency without recompiling the final binary, that's not possible with static linking.

However the ELF format does support complex symbol resolution, even for static objects. You can have weak and optional symbols, ELF interposition to override a symbol, and so forth.

But I feel like for most libraries it's best to keep it simple, unless you really need the complexity.