Needs C++11 compiler to build: target_compile_features The compiler feature "cxx_auto_type" is not known to CXX compiler "GNU" version 4.2.1. It also tries to link to libepoll-shim.so (installed by libfabric), so link to it and and devel/libepoll-shim to LIB_DEPENDS. PR: 239635 Approved by: yuri (maintainer), linimon (mentor) Differential Revision: https://reviews.freebsd.org/D21400