Created attachment 335578 [details] emerge --info =net-misc/spice-gtk-0.16 failed to build on automake
Created attachment 335580 [details] build log
...and the content of the file mentioned in the build log ?
Created attachment 335656 [details] automake.out
There's some generic problem here - see i.e. bug 452206.
*** This bug has been marked as a duplicate of bug 419933 ***