config BR2_PACKAGE_CAPNPROTO bool "capnproto" depends on BR2_USE_MMU depends on BR2_HOST_GCC_AT_LEAST_5 # C++14 depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # C++14 depends on BR2_INSTALL_LIBSTDCPP depends on BR2_TOOLCHAIN_HAS_THREADS depends on BR2_TOOLCHAIN_HAS_ATOMIC help Cap'n Proto is an insanely fast data interchange format and capability-based RPC system. Think JSON, except binary. Or think Protocol Buffers, except faster. In fact, in benchmarks, Cap'n Proto is INFINITY TIMES faster than Protocol Buffers. https://capnproto.org/index.html comment "capnproto needs host and target gcc >= 5 w/ C++14, threads, atomic" depends on BR2_USE_MMU depends on !BR2_HOST_GCC_AT_LEAST_5 || \ !BR2_TOOLCHAIN_GCC_AT_LEAST_5 || \ !BR2_INSTALL_LIBSTDCPP || \ !BR2_TOOLCHAIN_HAS_THREADS || \ !BR2_TOOLCHAIN_HAS_ATOMIC