build: require c++11 for gtest, and link test exe against pthreads (linux build fails without it)
build: require c++11 for gtest, and link test exe against pthreads (linux build fails without it)
liamstask/c-capnproto,fluffysquirrels/c-capnproto,liamstask/c-capnproto,fluffysquirrels/c-capnproto,opensourcerouting/c-capnproto,liamstask/c-capnproto,liamstask/c-capnproto,opensourcerouting/c-capnproto