Re: Setting up GPRBUILD for Ada in mingw64

[Jere <jhb.chat@gmail.com>]

On Wednesday, July 12, 2017 at 2:50:10 AM UTC-4, Simon Wright wrote:
> Jere writes:
> 
> > but when I tried to run a simple:
> >
> > gprbuild -P test_gnoga.gpr
> >
> > or any gpr file for that matter, I get the following error
> >
> > "Error: no native compiler found for language 'ada', default runtime
> > test_gnoga.gpr:1:06: unknown project file: "Gnoga"
> > gprbuild: "test_gnoga.gpr" processing failed"
> 
> gprbuild uses gprconfig to work out what compilers are
> available. gprconfig probes the environment in various ways, for example
> by examining the output of "gcc -dumpmachine".
> 
> Try running "gprconfig -v foo.gpr" and see whether (a) the compiler
> you've installed is found at all, (b) [if you can! the output can be a
> bit terse] why it was rejected.

Here was my output:
$ gprbuild -v test_gnoga.gpr
GPRBUILD GPL 2015 (20150428) (i686-pc-mingw32)
Copyright (C) 2004-2015, Free Software Foundation, Inc.
 24 lines: No errors
gprconfig --batch -o D:\Program_Files\msys64\home\Jere\Test_Gnoga\obj\auto.cgpr                                                                  --target=x86-windows --config=ada,,
Error: no native compiler found for language 'ada', default runtime
Creating configuration file: D:\Program_Files\msys64\home\Jere\Test_Gnoga\obj\au                                                                 to.cgpr
Checking configuration D:\Program_Files\msys64\home\Jere\Test_Gnoga\obj\auto.cgp                                                                 r
Setting the default project search directories

==============Error messages for project file: D:\Program_Files\msys64\home\Jere                                                                 \Test_Gnoga\test_gnoga.gpr
     1. with "Gnoga";
             |
        >>> unknown project file: "Gnoga"

 24 lines: 1 error
gprbuild: "test_gnoga.gpr" processing failed


Note that the version of GCC/GNAT that I am using is 7.1.  
I did try building gprbuild from the adacore git repo, but 
with little success, which is why I grabbed the gnoga one.

Normally my taget has x86_64 in it but that one just says x86 in it.  
I am guessing that is the culprit?

> 
> A while back you had to say "gprbuild --target=<target>" (where <target>
> is the output of "gcc -dumpmachine", e.g. x86_64-apple-darwin14.5.0) if
> gprbuild was built with a different compiler than the one you have on
> your PATH, but the pattern matching has got a lot better since then.

Yeah, I started looking through that at one point, but I 
really couldn't make heads or tails out of what I was 
supposed to change.  I'll try and keep looking through that.

gcc outputs:  x86_64-w64-mingw32