/home/gxi/下载/mantis-master/src/query.cc:45:26: fatal error: openssl/rand.h: 没有那个文件或目录
 #include <openssl/rand.h>
                          ^
compilation terminated.
src/CMakeFiles/mantis_core.dir/build.make:110: recipe for target 'src/CMakeFiles/mantis_core.dir/query.cc.o' failed
make[2]: *** [src/CMakeFiles/mantis_core.dir/query.cc.o] Error 1
CMakeFiles/Makefile2:87: recipe for target 'src/CMakeFiles/mantis_core.dir/all' failed
make[1]: *** [src/CMakeFiles/mantis_core.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2
How to solve this problem?