__ref_all_...

Symbols to Control the Linker Next

Defining __ref_all_name creates a global import for all symbols named name. Importing the same symbol twice does not have any particular effect; however, sometimes this is necessary if you want a global import to succeed as early as possible.

If none of the archives supplied to the linker exports a symbol with this name (or a related name using conditional reaction), the linker outputs a warning.