Compile Warning with this update

[Hadeszeus 15]

I got this warning when compiling.
 

path.c: In function 'distance_client':path.c:476: warning: implicit declaration of function 'sqrt'path.c:476: warning: incompatible implicit declaration of built-in function 'sqrt'

From latest Update https://github.com/HerculesWS/Hercules/commit/b5a92f944f126e920442307bebd3c2b53c9b0d54

 

How to fix this thanks!