Re: gprbuild not working on GNAT 2015 GPL for raspberry pi cross compile

[paherbst@gmail.com]

On Sunday, July 12, 2015 at 4:32:32 PM UTC-4, Brad Moore wrote:
> On 2015-07-11 11:56 PM, Simon Wright wrote:
> > Stephen Leake <stephen_leake@stephe-leake.org> writes:
> >
> >> Brad Moore <brad.moore@shaw.ca> writes:
> >>
> >>> I am trying to get gprbuild to work for the GNAT 2015 GPL Raspberry Pi
> >>> 2 Linux (32 bits) release.
> >>>
> >>> When I try to build one of my project files, I get the error,
> >>>
> >>> "warning: no compiler specified for language "Ada", ignoring all its
> >>> sources"
> >>
> >> Run gprconfig -v
> >>
> >> and see what it says about what compilers are available. Then specify
> >> one of those as the target for the gprbuild.
> >
> > Actually,
> >
> >     gprconfig -v --target=<your target>
> >
> > or
> >
> >     gprconfig -v --target=all
> >
> > Gprconfig looks for a compiler and a runtime. If it finds {target}-gcc
> > it runs -dumpmachine to find the version, then looks for runtimes in (at
> > least) lib/gcc/{target}/{version}; first in adalib/, then via
> > ada_object_path, then via rts-*/.
> >
> 
> Thanks Stephen and Simon for the suggestions,
> 
> Executing the above commands pointed out that I hadn't set the ENV_PREFIX variable correctly,
> which was why my compiler install was not being detected.
>  From this I was eventually able to get things to compile and execute using gprbuild.
> 
> There were a few other things I had to setup as well, for example, the run-time had to be
> explicitly linked in via the project file directives for Raspian, but for the x86 builds, this wasn't necessary.
> (This was only needed for an executable for which the main was written in C, calling Ada, otherwise
> the project files involving pure Ada code did not require any modifications)
> 
> Cheers,
> 
> Brad

Brad, what exactly did you have to do to fix this?