Re: io_graph.adb:7:22: warning: "Ada.Command_Line.Environment" is aninternal GNAT unit

["Björn Lundin" <bnl@tiscali.se>]

onsdag 01 december 2004 20:20 skrev MagIk:
> "Marc A. Criley" <mcNOSPAM@mckae.com> wrote in message
> news:<3160ebF36m6ltU1@individual.net>...
>
> > "Björn Lundin" <bnl@tiscali.se> wrote:
> > >tisdag 30 november 2004 20:48 skrev MagIk:
> > >> Hi all,
> > >>
> > >> when i Compil my programme (requier Lib X11) i have this 2 Warning
> > >>
> > >> io_graph.adb:7:22: warning: "Ada.Command_Line.Environment" is an
> > >> internal GNAT unit
> > >> io_graph.adb:7:22: warning: use of this unit is non-portable and
> > >> version-dependent
> > >
> > > Just what it says. If you change compiler, it won't work since the
> > > package 'Ada.Command_Line.Environment' is a gnat-specific package
> >
> > And if you change GNAT compiler _version_ it may not work the same, or
> > even be present, since it's specific to GNAT.
> >
> > Marc A. Criley
> > McKae Technologies
> >
> > www.mckae.com
>
> ok, i have the version 3.3.4 (I have the version of slackware 10..)
>
> but i could installl gnat-3.15P.. but i dont know how Instal it :(
>
> how install the Gnat-3.15P for Slack 10?

No, you misunderstand. The package may or may not be available in 3.15, but if 
it is, it will be equally non-portable.

It is a 'conveniance' package provide by the compiler-vendor, not a package 
required to be distributed with all Ada compilers. 

It's nothing wrong with it, just that it _might_ not be present when you use 
another compiler, like Object Ada..

You can use it, or not. (If not do a 'pragma Import' on getenv, if your 
targets are all unix)

/Björn