Re: Building an encapsulated library that uses GNAT sockets under Windows

[ahlan.marriott@gmail.com]

On Saturday, 23 April 2016 11:49:13 UTC+2, Dmitry A. Kazakov  wrote:
> On 2016-04-23 11:20, Ahlan wrote:
> 
> > The problem is not in Gprbuild.exe but in libexe/gprbuild/gprlib.exe
> > Have you tried building Gprlib from the git sources? - that might be a more elegant solution.
> 
> Yes I did. When you build gprbuild, it also builds all other utilities 
> including gprlib.exe.
> 
> You can try it yourself. It is here:
> 
>     https://github.com/AdaCore/gprbuild
> 
> There are two problems to fix to be able to do so:
> 
> 1. OS_Lib does not contain Kill and Kill_Process_Tree gprclear requires. 
> You can comment them out. Kill is relatively easy, you must add win32ada 
> to the project and do:
> 
>     procedure Kill (Pid : Process_Id; Hard_Kill : Boolean) is
>        use Win32.Winbase;
>        use Win32.Winnt;
>        Process : HANDLE;
>        Result  : Win32.BOOL;
>     begin
>        Process := OpenProcess
>                   (  PROCESS_ALL_ACCESS,
>                      1,
>                      Win32.DWORD (Pid_To_Integer (Pid))
>                   );
>        Result  := TerminateProcess (Process, 1);
>     end Kill;
> 
> Kill_Process_Tree is more complicated, but could be just Kill (:-))
> 
> 2. There is a dynamic_constraint somewhere put on a type, that promptly 
> crashes the compiler. I removed it.
> 
> However I was not aware of the directory ...\libexec\gprbuild. I 
> replaced only the executables in ...\bin. Thank you for the hint. Maybe 
> that would do the trick. I will try it next week and report back.
> 
> -- 
> Regards,
> Dmitry A. Kazakov
> http://www.dmitry-kazakov.de

Dear Dmitry,
I downloaded the sources from Git using the link you supplied and built Gprlib.exe
I could build this without the problems you mentioned.
I guess these problem occur when you try and build the other utilities that GprBuild builds.
However as I was only interested in Gprlib I only built that.

I then copied this into the /libexe/gprbuild directory of my GNAT release
and this then solved the problem. :-)

Ie Using Gprlib.exe built from the latest git sources I was able to build a Windows encapsulated library (DLL) that uses Gnat.Sockets without have to use your Gcc_Wrapper workaround.

Best wishes,
Ahlan