Merge pull request #4990 from rgacogne/rec-snmp-clean

rec: Add SNMP support

diff --cc docs/markdown/recursor/scripting.md
Simple merge

diff --cc docs/markdown/recursor/settings.md
Simple merge

diff --cc pdns/lua-recursor4.cc
Simple merge

diff --cc pdns/pdns_recursor.cc
Simple merge

diff --cc pdns/recursordist/Makefile.am
Simple merge

diff --cc pdns/recursordist/configure.ac
index 1298d9aeab04dcb13944ae6c245af77215cc0b82,7a0be912965b83cf77991d70d82c316a9faae583..e79af91b8cb716fd66aef3ab3e2b240d2b820dac
--- 1/pdns/recursordist/configure.ac
--- 2/pdns/recursordist/configure.ac
+++ b/pdns/recursordist/configure.ac
@@@ -112,8 -112,9 +112,10 @@@ PDNS_CHECK_LIBCRYPTO(
    ]
  )
  PDNS_CHECK_LIBCRYPTO_ECDSA
 +PDNS_CHECK_LIBSODIUM
  
+ PDNS_WITH_NET_SNMP
+ 
  # check for tools we might need
  PDNS_CHECK_RAGEL
  PDNS_CHECK_CURL