from http://bugs.gentoo.org/show_bug.cgi?id=18266 it looks like thttpd used to be in portage. But here is the newest release.
Created attachment 22275 [details] new ebuild
Created attachment 22276 [details] thttpd.conf
Created attachment 22277 [details] thttpd.init
Created attachment 22278 [details] old thttpd.ebuild that supports php.
Created attachment 22279 [details] thttpd.conf for 2.21b
Created attachment 22281 [details] digest thttpd-2.24
Created attachment 22282 [details] digest thttpd-2.21b
Created attachment 22283 [details] ChangeLog
Created attachment 22284 [details] metadata.xml
Created attachment 22285 [details] manifest
Created attachment 22287 [details] shar file for thttpd.
Created attachment 22312 [details, diff] forgot to change the DESCRIPTION= .....
*** This bug has been marked as a duplicate of 36173 ***