Re: Free-Ada updated to GCC-9.x

[Lucretia <laguest9000@googlemail.com>]

On Sunday, 10 November 2019 03:28:33 UTC, Jere  wrote:
> On Friday, November 8, 2019 at 5:38:35 PM UTC-5, Lucretia wrote:
> > On Friday, 8 November 2019 18:46:25 UTC, Jere  wrote:
> > 
> > > Nice!  This looks like it only builds in Linux for now?  I saw some
> > > references to msys in there, but they don't appear to always set the
> > > same settings as other host systems.  I'm typically doing Ada
> > > development from msys2 on Win10 64bit, so was curious about it.
> > 
> > Yeah, only developed and tested on Linux for now. The aim is to get it working for other platforms, but getting this far on one platform is hard enough.
> > 
> > Luckily, Linux kernel 5.3.7-gentoo, has a working VFIO with passthrough, the last (quite a) few revisions have been broken, so I have my Win10 and MacOS VM's working again, but don't expect anything much too soon.
> > 
> > But seeing as MacOS already has GCC/GNAT builds for it, that can wait, for now.
> > 
> > Is Mingw32 the way to go with an MSYS install? It's been years since I installed GCC on a Windows machine.
> 
> Optikos covered where to get msys2 (it is the preferred now adays due to it 
> being 64bit).  What I generally do is:
> 
> 1.  Install the necessary tools:
> pacman -Sy make
> pacman -Sy mingw-w64-x86_64-toolchain
> 
> That should get everything.  If it doesn't get GNAT for some reason, then
> search pacman for gcc-ada and install that package.
> 
> 2.  Install GNAT community 2018 or newer.  There is no gprbuild in msys2
> and sometimes it is hard to build.  By installing GNAT community, you 
> can get gprbuild.  I accomplish this by adding the bin directory for 
> GNAT Community to the *end* of the path.  This ensures using GCC uses
> the msys version but gprbuild can still be used.
> 
> I was recently able to successfully build gprbuild for msys2, but I 
> would not recommend it to start out until you are comfortable with
> the environment.

I'm surprised they packaged gnat and not gprbuild.

To build gprbuild, you need to get the sources and xmlada and use the bootstrap.sh script. In free-ada, I then rebuild and package up both after bootstrap.

Once you have gprbuild, you can build the rest.

I built free-ada because Gentoo has nothing provided for Ada except ancient build scripts and they build a separate compiler, I did try to get some patches in for toolchain.eclass which builds gnat as part of the system compiler, which is preferable, but harder to get the patches merged.

Luke.