Re: Interfacing Ada with Ada

[Pascal Obry <pascal@obry.net>]

Le 02/12/2009 17:21, Jean-Pierre Rosen a �crit :
> Simple answer: no. The ali file contains the version of the compiler
> that was used, and the binder will refuse a unit from a different version.

Hum... For "simple" code not using the Ada runtime, won't it work to 
consider this old Ada code as it was some external C code:

    0. Remove all .ali files coming from 3.14 compiler. Move away
       specs too.

    1. Create interface specs for say "old.o" object code:

          procedure Foo (P : in Integer);
          pragma Import (Ada, Foo);

    2. When linking add the old object file

          $ gnatmake xyz -largs old.o

If the old code uses the Ada runtime (tasks, controlled objects, ...) 
this just won't work of course.

Pascal.

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