I'm trying to install the Matreshka add-on for gcc-Ada/gcc48-Ada, but nothing seems to be working.

The Matreshka repository and the source RPM file seem to be broken.

I was able to add http://download.opensuse.org/reposit...m-godunko.repo with zypper ar, but when I try to refresh it I see
Code:
Retrieving repository 'Matreshka' metadata .....................................................................................................................................[error]
Repository 'Matreshka' is invalid.
[|] Valid metadata not found at specified URL
Please check if the URIs defined for this repository are pointing to a valid repository.
Skipping repository 'Matreshka' because of the above error.
I tried getting the source using Package Search (URI: http://download.opensuse.org/reposit...0-14.1.src.rpm), but when I try to install the RPM I see
Code:
  02:06:43,root@pinto
~
#rpm -ivf ~leslie/Downloads/Packages/RPMs/matreshka-0.6.0-14.1.src.rpm
warning: /home/leslie/Downloads/Packages/RPMs/matreshka-0.6.0-14.1.src.rpm: Header V3 DS                                                                                               A/SHA1 Signature, key ID 2b5cdde8: NOKEY
matreshka-0.6.0-14.1.x86_64
 03:23:33,root@pinto
~
#rpm -q matreshka
package matreshka is not installed
I also tried downloading and building Matreshka from the source (URI: http://forge.ada-ru.org/matreshka/do...a-0.6.0.tar.gz), but the build fails because gprbuild is not installed. (IShouldn't that be part of gcc-Ada/gcc48-Ada?)

I'm not sure how to proceed from here.