MinGW GNAT and GCC specs strings

MinGW GNAT and GCC specs strings

[Hibou57 (Yannick Duchêne)]

Hello all of you,

I've builded a custom MinGW environnemen. I've tried it on a C file :
Ok. Then I've tried it on an Ada file : Failed. gnat1 failed to find
system.ads. So I attempted to pass an "-Imydir" option to gnat1 adding
a "*gnat1: -Imydir." specs string in the GCC specs file, but it does
not seems to work. As a check, if I invok "gcc -v -c test.adb", then I
can see that the arguments I want to pass to gnat1 via the GCC specs
file is not given to the gnat1 command line. So I suppose GCC does not
know the gnat1 specs string (although is perfectly knows the cc1 specs
string).

Is it possible to pass the "-Imydir" command line option to gnat1
using the GCC specs file ?

Or is there another way, without using environnement variables, to
tell gnat1 where Ada includes and libs are located ?

Have a nice day

Re: MinGW GNAT and GCC specs strings

[Hibou57 (Yannick Duchêne)]

I've just remember there are "lang-specs.h" files in each gcc/
<language> subdirectory.

The one for Ada language contains :

--
-----------------------------------------------------------------------

/* This is the contribution to the `default_compilers' array in gcc.c
for
   GNAT.  */

  {".ads", "@ada", 0, 0, 0},
  {".adb", "@ada", 0, 0, 0},
  {"@ada",
   "\
 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are
incompatible}}\
 %{!S:%{!c:%e-c or -S required for Ada}}\
 gnat1 %{I*} %{k8:-gnatk8} %{w:-gnatws} %{!Q:-quiet} %{nostdinc*}\
    %{nostdlib*}\
    -dumpbase %{.adb:%b.adb}%{.ads:%b.ads}%{!.adb:%{!.ads:%b.ada}}\
    %{O*} %{W*} %{w} %{p} %{pg:-p} %{a} %{f*} %{d*} %{g*&m*} %1\
    %{!S:%{o*:%w%*-gnatO}} \
    %i %{S:%W{o*}%{!o*:-o %b.s}} \
    %{gnatc*|gnats*: -o %j} %{-param*} \
    %{!gnatc*:%{!gnats*:%(invoke_as)}}", 0, 0, 0},

--
-----------------------------------------------------------------------

I gonna use it as a pattern and try to play with it.

Re: MinGW GNAT and GCC specs strings

[Hibou57 (Yannick Duchêne)]

This only works for "gcc -S|-c source.adb" and not for "gnat compile|
bind|link|make source"

I will fallback to environnement variables, but if someone know a way
to do this, I'm still interested in it

Re: MinGW GNAT and GCC specs strings

[anhvofrcaus]

On May 27, 12:27 am, Hibou57 (Yannick Duchêne)
<yannick_duch...@yahoo.fr> wrote:
> This only works for "gcc -S|-c source.adb" and not for "gnat compile|
> bind|link|make source"
>
> I will fallback to environnement variables, but if someone know a way
> to do this, I'm still interested in it

You may have more than one GNAT on your machine. Is there a GNAT
running on Window? If not, I would reinstall GNAT on MinGW.

Anh Vo

Re: MinGW GNAT and GCC specs strings

[Hibou57 (Yannick Duchêne)]

On 27 mai, 17:13, anhvofrc...@gmail.com wrote:
> You may have more than one GNAT on your machine. Is there a GNAT
> running on Window? If not, I would reinstall GNAT on MinGW.
>
> Anh Vo

Hello Anh

This is for a special build I've made. The GCC compiler is built with
no support of the Windows registry, and I attempt as much as I can, to
make a relocatable installation which only relies on the path inside
of its own installation directory.

Looking at the GNAT code in MinGW sources, I've found about
"ada_source_path" and "ada_object_path", which are two files intended
to tell GNAT where object and source of the standard Ada package are
located. But I still have some problem with it.

Re: MinGW GNAT and GCC specs strings

[anhvofrcaus]

On Jun 3, 10:03 pm, Hibou57 (Yannick Duchêne)
<yannick_duch...@yahoo.fr> wrote:
> On 27 mai, 17:13, anhvofrc...@gmail.com wrote:
>
[...]
>
> Looking at the GNAT code in MinGW sources, I've found about
> "ada_source_path" and "ada_object_path", which are two files intended
> to tell GNAT where object and source of the standard Ada package are
> located. But I still have some problem with it.

Actually, only path to bin directory is need for GNAT running on
MinGW. Assuming MinGW is at C:\MinGW, the path=C:\MinGW\bin is
sufficient to run GNAT.

Anh Vo

Re: MinGW GNAT and GCC specs strings

[Hibou57 (Yannick Duchêne)]

On 4 juin, 17:20, anhvofrc...@gmail.com wrote:
> Actually, only path to bin directory is need for GNAT running on
> MinGW. Assuming MinGW is at C:\MinGW, the path=C:\MinGW\bin is
> sufficient to run GNAT.
>
> Anh Vo

You sees to know about the subject : do you know if the GNAT compiler
which comes with GPS made some use of the registry ? If it is, perhaps
the compiler I've build, which is another one, is disturbed by some
configuration stored in the registry. But I've ran "configure" so that
the windows registry should normally not be used.

It's on stand-by at the time. Il will tell more later after some
further attempts.