Re: Gnat says libraries are not supported.

[Ludovic Brenta <ludovic@ludovic-brenta.org>]

On Jun 29, 11:24 am, Martin Krischik <krisc...@me.com> wrote:
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> Ludovic Brenta schrieb:
>
> > Björn Persson wrote:
> >> I have a problem with Gnat of GCC 4.4.0 on Fedora 11. When Gnatmake
> >> encounters a Library_Name attribute in a project file, it says "warning:
> >> libraries are not supported on this platform", and I can't get it to
> >> generate any shared libraries.
>
> >> Does anyone know what that warning means? That Fedora wouldn't support
> >> libraries is just plain wrong. Has Gnat somehow been built without support
> >> for libraries?
>
> > This indicates that GCC was compiled with the wrong version of mlib-
> > tgt.adb.  In GCC 4.4, the proper version was renamed from mlib-tgt-
> > linux.adb to mlib-tgt-specific-linux.adb.   I know because I had to
> > fix this problem for the Debian package, which is now in the NEW queue
> > awaiting inspection by an FTP master.
>
> So, how did you fix it?

By adjusting the TOOLS_TARGET_PAIRS in src/gcc/ada/gcc-interface/
Makefile.in where mlib-tgt{,-specific} appears.  In Debian, this is
actually part of a much larger and invasive patch that builds
libgnatprj, the project manager library used by all GNAT tools and by
GPS, so the TOOLS_TARGET_PAIRS are now in src/libgnatprj/Makefile.in.
(Note that the value of TOOLS_TARGET_PAIRS depends on the target
triplet).

Since the pristine version of src/gcc/ada/gcc-interface/Makefile.in
seems fine, I think the problem on Fedora 11 was triggered by a patch
that was not adjusted for the change from mlib-tgt to mlib-tgt-
specific.

--
Ludovic Brenta.