knot-resolver fails to build from source on hurd due to missing MAXPATHLEN
the debian hurd build daemon shows:
daemon/engine.c: In function 'engine_set_moduledir':
daemon/engine.c:231:15: error: 'MAXPATHLEN' undeclared (first use in this function); did you mean 'MAXNAMLEN'?
char l_paths[MAXPATHLEN] = { 0 };
^~~~~~~~~~
MAXNAMLEN
See Justus Winter's thoughts on MAXPATHLEN about why this might not be something worth relying on.