>> In an ebuild, i'd like to specify an "download as"-filename. That means,
>> out there, there is a file called "http://host/myprogram-1.2.3/patch01"
>> which i'd like to download as "myprogram-1.2.3-patch01".
> 
> http://bugs.gentoo.org/show_bug.cgi?id=177863
> 
> We're planning to support that in a coming EAPI (didn't make it into
> EAPI 1).

Thanks for the hint.