Unable to execute make in RPi-3

[juzar417]

pi@raspberrypi:~/pi-gemm $ sudo make
g++ -Ofast -DTARGET_PI -march=armv6 -mfloat-abi=hard -ftree-vectorize -funroll-all-loops -mfpu=vfp -fPIC -c mailbox.cpp -o mailbox.o
mailbox.cpp: In function ‘int mbox_open()’:
mailbox.cpp:271:46: error: ‘makedev’ was not declared in this scope
if (mknod(DEVICE_PATH, (0777 | S_IFCHR), makedev(MAJOR_NUM, 0)) == -1) {
^~~~~~~
mailbox.cpp: In function ‘void* unmapmem(void*, unsigned int)’:
mailbox.cpp:85:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
make: *** [Makefile:23: mailbox.o] Error 1

[hyunwen]

Add
#include <sys/sysmacros.h>
to the file.