Create two MakeFiles about dblink HOT 3 CLOSED

The current situation of vertica/dblink is a little bit messy. We merged the code but not the associated Makefile needed by the code. We are in the middle of the river. Either we cross the river completely or we go back to version 0.2.1. We have two options to fix this situation: OPTION 1: we rename the current vertica/dblink Makefile > Makefile.docker and add a new Makefile copied from mfelici/dblink. One for docker envs, one for docker-free envs. Pros: fast & easy to implement. Cons: we have two Makefiles. OPTION 2: we use a single Makefile but this means: we merge the Makefile compile instructions from mfelici/dblink/Makefile the “default” compile mode (make with no OSTAG and no VERTICA_VERSION) should work out of the box for the standard (non-docker) environment used by 99.99% of the DBLINK users we add crystal clear instructions on how to build DBLINK on both docker/non-docker environment. Current instructions are misleading and incomplete… what is the meaning of OSTAG? Why to use it? How to manage non centos or ubuntu? What VERTICA_VERSION is used for? How to activate DEBUG mode? etc... test the new compile mode Most (all?) of our DBLINK users have issues compiling vertica/dblink in standard (docker-free) envs. My suggestion is to go OPTION 1 immediately (to get out to the river) and then plan & implement & test OPTION 2. P.S. I will be back from my summer holidays next Aug 28th :-) Saluti, Maurizio -- Maurizio Felici | E: ***@***.*** | M: +39 335 5979574