This commit adds the code that handles the exports information for the
module definitions in prelude packets. The exports info is generated
in a section in the output object file.
A precise description of the binary format in which the exports are
encoded is expressed in an included GNU poke pickle ga68-exports.pk.
Signed-off-by: Jose E. Marchesi <jemarch@gnu.org>
gcc/ChangeLog
* algol68/a68-exports.cc: New file.
* algol68/ga68-exports.pk: Likewise.