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_PACKAGE_HOST_PROTOBUF_ARCH_SUPPORTS 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" depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS depends on BR2_PACKAGE_HOST_PROTOBUF_ARCH_SUPPORTS