fatal error: ev.h

[frazalijaffery]

[root@ REACT-CPP]# make
make -C src all
make[1]: Entering directory '/root/REACT-CPP/src'
g++ -Wall -MMD -c -I. -std=c++11 -g -fpic -o mainloop.o mainloop.cpp
In file included from mainloop.cpp:8:0:
includes.h:8:10: fatal error: ev.h: No such file or directory
#include <ev.h>
^~~~~~
compilation terminated.
make[1]: *** [Makefile:43: mainloop.o] Error 1
make[1]: Leaving directory '/root/REACT-CPP/src'
make: *** [Makefile:9: all] Error 2
Os version
[root@ REACT-CPP]# cat /etc/redhat-release
CentOS release 6.10 (Final)
Os release
[root@ REACT-CPP]# uname -a
Linux 2.6.32-042stab116.2 #1 SMP Fri Jun 24 15:33:57 MSK 2016 x86_64 x86_64 x86_64 GNU/Linux