https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121527
--- Comment #7 from Sam James <sjames at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #6)
> I'll note sourcebuild.texi isn't up-to-date with the introduction of
> acats-{2,3,4} and there's still lack of a way to only build/run a single
> test.
As a workaround.. what I did was run `check-ada` once, and then:
cd ~/bugs/gcc-bld/gcc/testsuite/ada/acats-426/tests/c3/c391002 # build
directory
gnatmake -I../../../../../ada/acats-4/support c391002 -f -O2
./c391002
