Hi jls_legalize
Try changing:
client_connmanctl_LDADD = @DBUS_LIBS@ @GLIB_LIBS@ -lreadline -ldlto:
client_connmanctl_LDADD = @DBUS_LIBS@ @GLIB_LIBS@ -lreadline -lncurses -ldlin  Makefile.am
Do you have  readline-dev.tcz  installed?
    [EDIT]: Corrected typo in second code box, replaced  -lreadline  with  -lncurses.  Rich