https://github.com/capnproto/capnproto/issues/1167 https://github.com/capnproto/capnproto/pull/1409 https://github.com/capnproto/capnproto/commit/0eda701d210107e7acf4e6af13222ec185e593d7 https://github.com/capnproto/capnproto/commit/77ac9154440bcc216fda1092fd5bb51da62ae09c Dependency on "elibc_musl? ( sys-libs/libucontext )" (maybe with := operator) should be added.
I can't seem to reproduce this error. Can you provide some log? I don't have libucontext installed and neither 0.9.1 nor 0.10.2 failed.