I am sorry , the e-mail didn`t include the error message

When I run make & make install , I get the following error

/usr/bin/ld: cannot find -lnet

collect2: ld returned 1 exit status

make[2]: *** [syslog-ng] Error 1

make[2]: Leaving directory `/root/Desktop/slng/syslog-ng-2.0.4/src'

make[1]: *** [all-recursive] Error 1

make[1]: Leaving directory `/root/Desktop/slng/syslog-ng-2.0.4'

make: *** [all] Error 2