Martin Gräßlin wrote: > #if 0 > // code already written, but not enabled as CI doesn't have it > #endif If you already have this, then why don't you just write: #ifdef HAVE_FOO_1_23 or #if HAVE_FOO_1_23 with an appropriate #cmakedefine instead of #if 0? Then things will just work and everybody will be happy. Kevin Kofler