config BR2_PACKAGE_PROTOBUF_C bool "protobuf-c" depends on BR2_INSTALL_LIBSTDCPP depends on BR2_TOOLCHAIN_HAS_THREADS # host-protobuf only builds on certain architectures depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86" depends on BR2_HOST_GCC_AT_LEAST_4_8 # host-protobuf help Code generator and runtime libraries to use Protocol Buffers from pure C (not C++). https://github.com/protobuf-c/protobuf-c comment "protobuf-c needs a toolchain w/ C++, threads, host gcc >= 4.8" depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS \ || !BR2_HOST_GCC_AT_LEAST_4_8 depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"