[PATH][Ada] Fix multilib handling of gnat.dg when RUNTESTFLAGS is used

[Laurent GUERBY]

On Sat, 2009-04-18 at 12:14 +0200, Eric Botcazou wrote:
> > -		set root [file dirname $file]
> > -		set CC "$file -I$root/ada/rts --GCC=$root/xgcc --GNATBIND=$root/gnatbind
> > --GNATLINK=$root/gnatlink -cargs -B$root -largs --GCC=$root/xgcc -B$root
> > -margs"; -	    } else {
> > -		set CC [transform gnatmake]
> > -	    }
> > -	} else {
> > -	    set CC [transform gnatmake]
> > -	}
> > -	return $CC
> > +proc local_find_gnatmake {} {
> > +    global tool_root_dir
> > +
> > +    if ![is_remote host] {
> > +        set file [lookfor_file $tool_root_dir gnatmake]
> > +        if { $file == "" } {
> > +    	set file [lookfor_file $tool_root_dir gcc/gnatmake]
> > +        }
> > +        if { $file != "" } {
> > +    	set root [file dirname $file]
> > +    	set CC "$file --GCC=$root/xgcc --GNATBIND=$root/gnatbind
> > --GNATLINK=$root/gnatlink -cargs -B$root -largs -B$root -margs -B$root"; + 
> >       } else {
> 
> There is a problem though: you have removed --GCC=$root/xgcc from -largs so 
> gnatlink will use 'gcc' to compile and '/usr/bin/gcc' to link.

Oops, sorry for that. I'm testing right now on 4.4 and trunk with the
additional --GCC (and I'll fix the spurious whitespace diff between
trunk and 4.4 on gnat.exp).

Out of curiosity, under what condition does this issue show up?

Laurent