cpan> install Net::Libdnet
Net-Libdnet-0.98/
...
Configuring G/GO/GOMOR/Net-Libdnet-0.98.tar.gz with Makefile.PL
Note (probably harmless): No library found for -ldnet
...
Libdnet.xs:37:18: dnet.h: No such file or directory
In file included from Libdnet.xs:77:
c/intf_entry.c: In function `intf_c2sv':
c/intf_entry.c:38: error: dereferencing pointer to incomplete type
c/intf_entry.c:39: error: dereferencing pointer to incomplete type
c/intf_entry.c:40: error: dereferencing pointer to incomplete type
c/intf_entry.c:41: error: dereferencing pointer to incomplete type
c/intf_entry.c:42: error: dereferencing pointer to incomplete type
c/intf_entry.c:44: error: dereferencing pointer to incomplete type
...
dmake.exe:  Error code 129, while making 'Libdnet.o'
  GOMOR/Net-Libdnet-0.98.tar.gz
  C:\ACTIVE~1\site\bin\dmake.exe -- NOT OK
Failed during this command:
 GOMOR/Net-Libdnet-0.98.tar.gz                : make NO