Issue installing a GNAT cross-compiler

[Gabriel Brusq]

Thank you for your answers.
I will follow advices and move to more recent tools and rtems to ease the build.
In parallel I keep on trying to find what should be done with the sys/socket.h file generated after first rtems build,
as it is also part of my challenge to uses those former versions.
If someone has an idea for that point I'm still interested.
                
I appreciate your help
Regards,
Gabriel Brusq