How to force gcc to link unreferenced, static C++ objects from a library

Question

I\'m using a C++ library that can be built as either a shared or a static library. This library uses a factory technique, where static objects register themselves when the p

Answer 1

You can use -Wl,--whole-archive -lyourlib , see the manpage for ld for more info.

Any static libraries mentioned after -Wl,--whole-archive on the command line gets fully included, you can turn this off again too if you need to , as in e.g. -Wl,--whole-archive -lyourlib -Wl,--no-whole-archive -lotherlib

Answer 2

Use:

g++ -u <SYMBOL_NAME> ...

Note that -u is lowercase