Re: Help- selective symbol exposure after link

SRC Modula-3 supports the notion of packages, which can be used to
limit the visibility of interfaces.


http://www.research.digital.com/SRC/modula-3/html/srcm3.html


  - Wilson


      Q: How does one link several object files into a single object file
            or library, where symbols are resolved locally as much as possible,
            and where only selected symbols are exported/exposed/made public?


      Here is an example:
      File b.c contains a function named b1() which does something simple.
      File a.c contains a function named a1() which calls b1();
      File main.c include main() which calls a1().
      I'd like to create an object (or library) ab.o, composed of
      a.o and b.o, which only exposes a1(). With this ab.o, I then
      should be able to compile main.c and create an executable.
[Does it need linker support? -John]
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