If I understand the conclusion of the article right, it's that we should actually just use PATH_MAX? In particular, he points to the glibc implementation of rea

If I understand the conclusion of the article right, it's that we should actually just use PATH_MAX? In particular, he points to the glibc implementation of realpath as being very correct. But it (like the man page description of it says), appears to prefer to use the hard-coded value of PATH_MAX, unless that value is unavailable and it is forced to query for the kernel _PC_PATH_MAX value instead. That's not what I would have expected. Did I miss something obvious?