It's used in the ccmake command. Please let it use the system libform present in ncurses, if at all possible.
Created attachment 220623 [details, diff]
Patch to switch to external libform
Here's a patch to build ccmake (2.6.4) against external libform.
Builds and links fine, and "ccmake --help" gives expected output, but no further functionality tests done so far.
I've been using the patched cmake for half a month now on 2 amd64 and 1 x86 machine. No side effects noted during emerges.
However, I have not tested the ncurses program itself manually.
Please give the cmake-2.8.1 ebuild from the kde overlay a thorough testing.
This should be fixed there, as well as another issue (bug 305945).
Fixed in cmake-2.8.1-r1.