mandoc

• mandoc requires an LN variable in configure.local to use symbolic links
• cat can be used instead of less (oasis)
• sys_endian in mandoc refers to sys/endian.h; musl provides include/endian.h
• Do we need HAVE_CMSG_XPG42=0?

References

• https://github.com/plp13/qman
• https://lists.gnu.org/archive/html/gnunet-developers/2018-09/msg00017.html
• https://undeadly.org/cgi?action=article&sid=20170304230520