The ebuild fails during configuration.
configure: error: Could not find a curses implementation, needed to build fish. If this is Linux, try running 'sudo apt-get install libncurses5-dev' or 'sudo yum install ncurses-devel'
# qlist -I ncurses -v
Created attachment 371596 [details]
Created attachment 371598 [details]
Comment on attachment 371598 [details]
That's the same emerge --info output...
*** This bug has been marked as a duplicate of bug 459768 ***