Install berkeley 4.8 db libs on Ubuntu 16.04

1. sudo add-apt-repository ppa:bitcoin/bitcoin
2. sudo apt-get update
3. sudo apt-get install libdb4.8-dev libdb4.8++-dev

or

1. wget http://download.oracle.com/berkeley-db/db-4.8.30.zip
2. unzip db-4.8.30.zip
3. cd db-4.8.30
4. cd build_unix/
5. ../dist/configure --prefix=/usr/local --enable-cxx
6. make
7. make install

or

1. BITCOIN_ROOT=$(pwd)
3. # Pick some path to install BDB to, here we create a directory within the bitcoin directory
4. BDB_PREFIX="${BITCOIN_ROOT}/db4"
5. mkdir -p $BDB_PREFIX
7. # Fetch the source and verify that it is not tampered with
8. wget 'http://download.oracle.com/berkeley-db/db-4.8.30.NC.tar.gz'
9. echo '12edc0df75bf9abd7f82f821795bcee50f42cb2e5f76a6a281b85732798364ef db-4.8.30.NC.tar.gz' | sha256sum -c
10. # -> db-4.8.30.NC.tar.gz: OK
11. tar -xzvf db-4.8.30.NC.tar.gz
13. # Build the library and install to our prefix
14. cd db-4.8.30.NC/build_unix/
15. # Note: Do a static build so that it can be embedded into the executable, instead of having to find a .so at runtime
16. ../dist/configure --enable-cxx --disable-shared --with-pic --prefix=$BDB_PREFIX
17. make install
19. # Configure Bitcoin Core to use our own-built instance of BDB
20. cd $BITCOIN_ROOT
21. ./autogen.sh
22. ./configure LDFLAGS="-L${BDB_PREFIX}/lib/" CPPFLAGS="-I${BDB_PREFIX}/include/" # (other args...)