About kernel installing

[Mohammad Nazmul Ahsan]

Hello!
 
 for my thesis work i want to change my kernel FreeBSD 4.6.2 . I need to use a math function sqrt() or frex() in the kernel. But i cant. an error message " undefined referrence to function sqrt()". this is because math library -lm or -lc is not linked at kernel install and build time. how can i overcome the problem.
 
 
Nazmul
Assistant Preofessor
Computer science & Engineering Department
Gazipur, Bangladesh.