RE: [syslog-ng] undefined reference to `libnet_init'

strange, libnet seems to be found, but it is not added to the linker command line. Can you check if libnet-config script is found and prints something if you execute:

$ libnet-config --libs

It should print something like: -lnet

It's not in my path, but [root@challenger syslog-ng-2.0.3]# /usr/src/libnet/libnet-config --libs -lnet