These are the packages that would be merged, in order:

Calculating dependencies  ..... ..... ..... ...... done!
[ebuild  N    ] dev-libs/libiconv-1.11  USE="-build" 
[blocks B     ] sys-libs/glibc (is blocking dev-libs/libiconv-1.11)
[blocks B     ] sys-apps/man-pages (is blocking dev-libs/libiconv-1.11)