ncurses-devel-4.2-18 package does not include the misc/ directory which contains the hackguide.doc and the ncurses-intro.doc which are mentioned in the included /usr/doc/ncurses-4.2-18/ANNOUNCE document.
Both misc/hackguide.html and ncurses-introl.html are mentioned in /usr/doc/ncurses-4.2-18/README, but neither of these files actually exists in the distribution.
Fixed in 4.2-19
*** Bug 537420 has been marked as a duplicate of this bug. ***