Currently ebuild for the latest legacy nvidia drivers requires <xorg-server-1.5.99. (I own GeForce 7300GT GPU, so I can't use later driver versions.) This is wrong: 173.14.18 compiles and works fine with xorg-server-1.6.1.901-r3. Also this solves problem with applications requires xorg-server >= 1.6.0.
Created attachment 195292 [details] remove unneeded version requirement
Thanks for reporting your test results, assigning to maintainers.
This is already fixed.