Linking Partial Redundant Code

[rweickelt]

Is it possible to bind multiple single-threaded executables/objects in a way together, that

• each of them would run in its own thread
• symbols that have identical names, but different code (likely because of different compiler flags, #ifdefs etc.) would not cause multiple-definition errors, but result in duplicate code or data
• there is the possibility to declare some of the symbols to be resolved during a final link/map step

Perhaps I could link a single relocatable object for each partial application, leaving out startup and library code, remove all defined symbols from the symbol table assuming that still-unresolved symbols are uncritical and link the resulting objects together in a final step.

Has anybody done such a thing?

Thanks
Richard