Description Conrad Meyer 2020-08-12 18:06:29 UTC

mons installs a helper library called libshlist.  Its list_insert operation does not work with BSD sed 'i'.

$ echo 1 2 3 | sed '1ifoobar'    # BSD sed
sed: 1: "1ifoobar": command i expects \ followed by text

$ echo 1 2 3 | gsed '1ifoobar'   # GNU sed
foobar
1 2 3

$ echo 1 2 3 | sed '1i\
foobar '                         # BSD sed again
foobar 1 2 3

Aliasing sed to gsed on FreeBSD (and adding a port dependency on gsed) fixes it; currently I've hacked in a:

sed() {
  gsed "$@"
}

definition to my copy of mons so that it works.

(This manifests as "mons" producing the sed error message above ("command i expects \ followed by text"), and then printing Monitors: 0 and some gibberish.)