Re: How to enable Ada with GCC in linux

[Simon Wright <simon@pushface.org>]

Ada novice <shai.lesh@gmx.com> writes:

> I'm new to Linux and I have been able to run Ada programs under
> linux. On my machine, I found:
>
> gcc -v
[...]
> gcc version 4.6.3 (Debian 4.6.3-1)
>
> As we can see above, Ada is not enabled in the languages available in
> GCC. Yet, my gnatmake calls gcc well.

This seems to be how Debian handles Ada.

> gnatmake --version
> GNATMAKE GPL 2011 (20110419)
> Copyright (C) 1995-2011, Free Software Foundation, Inc.

'gnatls -v' includes extra helpful information.

> Should I leave things as they are since I am able to compile the Ada
> programs well?

I would fix it. If you don't it will come back to bite you.

Please tell us the output of

   $ echo $PATH

and

   $ gnatgcc -v

(I would expect it to be the same as the output of gcc -v, since (here)
/usr/bin/gnatgcc is a symlink to /usr/bin/gcc-4.4).

The symptoms appear to indicate that you have GNAT GPL 2011's bin/
directory on your PATH *after* /usr/bin and that you don't have Debian's
Ada package installed. Things would be more consistent if you had GNAT
GPL 2011's bin/ directory first.

By the way, I think you said that you have GNAT GPL 2011 installed in
something like /usr/gnat/? It would be better to install it in
/usr/local/gnat-2011, for example, then you could install 2012 in a
parallel directory, and have a choice. Rather like it's done for
Windows. And then you can 'rm -rf /usr/local/gnat-2012' and remove all
trace of it.