Created attachment 439150 [details, diff] vte use flag disabled vala x11-libs/vte package with use flag "-vala" drags dev-libs/vala with its dependencies to the system. As far as I was able to test, build and works well without dependency to vala. Proposed patch attached for version 0.42.5 (potentially universal) attached
[master aa4d8eb] x11-libs/vte: vala support is conditional, also DOCS declaration is not needed anymore (#587500 by Amaroun) 1 file changed, 2 insertions(+), 3 deletions(-)