Not supported on Apple Silicon

[Heziode]

This lib does not seems to be supported on Apple Silicon.

When I try to alr install gnatformat on my MacBook Pro M5, I got this:

alr --force install gnatformat
ⓘ Computing solutions...
✓ Installation targets fully solved                                                                                   
warn: Release gnatformat=26.0.0 has another version already installed: 
gnatformat=25.0.0
Releases installing executables can be installed only once
Forcing this install will overwrite the release already installed.
ⓘ Starting deployment of gnatformat=26.0.0 to fulfill gnatformat* with solution:
   Dependencies (solution):
      adasat=26.0.0
      gnat=15.1.2 (gnat_native)
      gnatcoll=26.0.0
      gnatcoll_gmp=26.0.0
      gnatcoll_iconv=26.0.0
      gnatcoll_minimal=26.0.0
      gnatcoll_projects=26.0.0
      gnatformat=26.0.0
      gprconfig_kb=26.0.0
      langkit_support=26.0.0
      libadalang=26.0.0
      libgmp=6.3.0
      libgpr=26.0.0
      libgpr2=26.0.0
      make=4.4.1
      prettier_ada=26.0.0
      vss_extra=26.2.0
      vss_text=26.2.0
      xmlada=26.0.0
   Dependencies (forbidden):
      libgnatformat*
ⓘ Deploying gnatformat=26.0.0...
-#O=#    #      #                                                                                                                               
ⓘ Deploying vss_extra=26.2.0...
Cloning into '/Users/heziode/.local/share/alire/releases/alr-govh.tmp'...
remote: Enumerating objects: 13874, done.
remote: Counting objects: 100% (13874/13874), done.
remote: Compressing objects: 100% (3297/3297), done.
remote: Total 13874 (delta 10110), reused 13858 (delta 10094), pack-reused 0 (from 0)
Receiving objects: 100% (13874/13874), 4.05 MiB | 26.07 MiB/s, done.
Resolving deltas: 100% (10110/10110), done.
ⓘ Found 1 nested crate in /Users/heziode/.local/share/alire/releases/vss_extra_26.2.0_879b9b89:
   tools/json_schema/json_schema=1.0.0: JSON Schema to Ada converter
ⓘ Starting installation of gnatformat=26.0.0...
ⓘ Building adasat=26.0.0/adasat.gpr...                                                                                           
kb: info: can't find a toolchain for the following configuration: language 'Ada', target 'aarch64-darwin', default runtime
kb: info: can't find a toolchain for the following configuration: language 'Ada', target 'aarch64-darwin', default runtime
Setup
   [mkdir]        object directory for project AdaSAT
   [mkdir]        exec directory for project AdaSAT
   [mkdir]        library directory for project AdaSAT
adasat.gpr:14:25: warning: libraries are not supported on this platform
adasat.gpr:1:17: no compiler for language "Ada", cannot compile "adasat-vectors.ads"
gprbuild: *** compilation phase failed
error: Command ["gprbuild", "-s", "-j0", "-p", "-P", "/Users/heziode/.local/share/alire/builds/adasat_26.0.0_37336738/c3bdbe3dc84d14c07bc0d2c67ba6cf5c7150e0cecc6d83d58b856135d7c2c3d4/adasat.gpr"] exited with code 7
error: Build failed, cannot perform installation

NB: the 25.0.0 version is my old gnatformat x86_64 version migrated when I moved from my older MacBook Pro x86_64 to Silicon.