fix for building with gcc/g++ 4.7.x
fix for building with gcc/g++ 4.7.x

http://gcc.gnu.org/gcc-4.7/porting_to.html

Header dependency changes

bfdd-control.cpp: In function ‘int openbfdd::bfdMain(int, char**)’:
bfdd-control.cpp:209:50: error: ‘getpid’ was not declared in this scope

dyninc/OpenBFDD,dyninc/OpenBFDD,dyninc/OpenBFDD