fix(BSS): llvm variant selection changed

packages/genpybind/package.py

@@ -43,7 +43,7 @@ class Genpybind(WafPackage):
     version('ebrains', tag='ebrains_release-1-rc1', git='https://github.com/electronicvisions/genpybind')
 
     depends_on(
-            'llvm+clang+python+visionary@5.0.0:',
+            'llvm+clang+python+visionary@5.0.0: libcxx=none build_type=Release',
         type=('build', 'link', 'run'))
     depends_on('binutils', type='build')
     depends_on('python@2.7:', type=('build', 'run'))