cannot compile on raspberry pi

[kevinsuo]

pi@raspberrypi ~/D/c/arm> make
mkdir -p bin
g++ -O3 --std=c++11 -I ../kernels/ -lpthread -mfpu=neon-fp-armv8 -o bin/gemm_bench gemm_bench.cc
gemm_bench.cc:6:38: fatal error: gemmlowp/public/gemmlowp.h: No such file or directory
#include "gemmlowp/public/gemmlowp.h"
^
compilation terminated.
Makefile:12: recipe for target 'gemm' failed
make: *** [gemm] Error 1