add ifconfig integration，unsupport win32. untest
bug fixed, freebsd server mode test ok. unsupport win32
fixed bug.  FreeBSD & Linux test ok.
add gdb support when --with-debug
freebsd set ifconfig ok .
freebsd ifconfig test ok .
fix linux bug, error: ‘xxx’ undeclared
fix linux  error: ‘xx’  undeclared
cmake version add ifconfig
update CMakeLists.txt