Re: Package procedure as program entry in GPR project

[Jere <jhb.chat@gmail.com>]

On Friday, January 25, 2019 at 10:12:24 AM UTC-5, Jesper Quorning wrote:
> Hello All,
> 
> With the package specifikation:
> 
> package My_Program_Package is
>    procedure Program_Entry_Procedure;
> end My_Program_Package;
> 
> How do i make Program_Entry_Procedure as the program entry procedure in a GPR project?
> 
> I think it is possible, but can not find out how.
> 
> I know how to use a stand-alone procedure file as program entry and how to name the executable. 
> 
> 
> Thanks from
> Jesper

With that specific setup, I am not sure.  But if you are willing to change
a couple of things you can do:

-- my_program_package.ads
package My_Program_Package is
   -- Notice no declaration here for the procedure, but you can put other
   -- things if you like
end My_Program_Package; 

-- my_program_package-program_entry_procedure.adb
procedure My_Program_Package.Program_Entry_Procedure is
begin
   -- your main stuff
end My_Program_Package.Program_Entry_Procedure;

Then you modify the GPR file to point to it as the main:
for Main use ("my_program_package-program_entry_procedure.adb");

I do something similar for my Gnoga GUI projects so I can have
program level stuff in the top package but have the main a child
of that top level package.