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

Calculating dependencies ... done!
Dependency resolution took 1.00 s (backtrack: 0/20).

[ebuild   R    ] dev-libs/isl-0.27:0/23::gentoo  USE="-static-libs" 2009 KiB

Total: 1 package (1 reinstall), Size of downloads: 2009 KiB