configure: WARNING: unrecognized options: --disable-nls, --enable-prober configure: loading site script /builder/shared-workdir/build/sdk/include/site/mips checking build system type... x86_64-pc-linux-gnu checking host system type... mips-openwrt-linux-gnu checking for a BSD-compatible install... /builder/shared-workdir/build/sdk/staging_dir/host/bin/ginstall -c checking whether build environment is sane... yes checking for mips-openwrt-linux-strip... mips-openwrt-linux-musl-strip checking for a thread-safe mkdir -p... /bin/mkdir -p checking for gawk... gawk checking whether make sets $(MAKE)... yes checking whether make supports nested variables... yes checking whether the C++ compiler works... yes checking for C++ compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... yes checking for suffix of object files... o checking whether we are using the GNU C++ compiler... yes checking whether mips-openwrt-linux-musl-g++ accepts -g... yes checking for style of include used by make... GNU checking dependency style of mips-openwrt-linux-musl-g++... none checking whether mips-openwrt-linux-musl-g++ supports C++14 features by default... yes checking for mips-openwrt-linux-gcc... mips-openwrt-linux-musl-g++ checking whether we are using the GNU C compiler... yes checking whether mips-openwrt-linux-musl-g++ accepts -g... yes checking for mips-openwrt-linux-musl-g++ option to accept ISO C89... unsupported checking whether mips-openwrt-linux-musl-g++ understands -c and -o together... yes checking dependency style of mips-openwrt-linux-musl-g++... none checking for a sed that does not truncate output... /builder/shared-workdir/build/sdk/staging_dir/host/bin/sed checking how to run the C preprocessor... mips-openwrt-linux-musl-g++ -E checking for grep that handles long lines and -e... /builder/shared-workdir/build/sdk/staging_dir/host/bin/grep checking for egrep... /builder/shared-workdir/build/sdk/staging_dir/host/bin/grep -E checking whether mips-openwrt-linux-musl-g++ is Clang... no checking whether pthreads work with -pthread... yes checking for joinable pthread attribute... PTHREAD_CREATE_JOINABLE checking whether more special flags are required for pthreads... no checking for PTHREAD_PRIO_INHERIT... yes checking how to run the C preprocessor... mips-openwrt-linux-musl-g++ -E checking for mips-openwrt-linux-ranlib... mips-openwrt-linux-musl-gcc-ranlib checking for mips-openwrt-linux-ar... mips-openwrt-linux-musl-gcc-ar checking the archiver (mips-openwrt-linux-musl-gcc-ar) interface... ar checking for mips-openwrt-linux-strip... (cached) mips-openwrt-linux-musl-strip checking for mips-openwrt-linux-protoc... /builder/shared-workdir/build/sdk/staging_dir/hostpkg/bin/protoc checking for library containing socket... none required checking for library containing gethostbyname... none required checking for library containing pcap_close... -lpcap checking for protobuf library... no configure: error: protobuf library required make[3]: *** [Makefile:72: /builder/shared-workdir/build/sdk/build_dir/target-mips_mips32_musl/spoofer-1.4.8/.configured_68b329da9893e34099c7d8ad5cb9c940] Error 1 time: package/feeds/packages/spoofer/compile#2.43#1.25#10.62