While trying to compile net-snmp inside a jail, the compilation breaks with the message:


 ./.libs/libnetsnmpmibs.so: undefined reference to `kd'
 cc: error: linker command failed with exit code 1 (use -v to see invocation)
 *** Error code 1

Unfortunately, --without-kmem-usage does not help. After eliminating mib modules one by one, I have reached the conclusion that the culprit is mib module 'ucd-snmp/memory'. Using something like:

 CONFIGURE_ARGS=--with-out-mib-modules="host ucd-snmp/memory" --without-kmem-usage

makes the compilation succeed. The host mib module has also been known to cause similar problems with jails for quite some time, also excluded. 

I understand that this is arguably not a problem with the port and should be reported upstream. However, since this is a jail-only issue related to the absence of /dev/kmem, maybe at a make config option could be added so that the user can choose a jail-friendly build.

Thanks,
Athanasios