The main operating system for Raspberry Pi, Raspbian, continues to evolve. The latest version as of August 2017 is “Raspbian Stretch” — based upon the current stable version of Debian 9. The previous version was known as “Raspbian Jessie”. One difference between versions is OpenSSL libraries. OpenSSL is a general purpose cryptography library that provides an open source implementation of the Secure Sockets Layer (SSL). My previous builds of MongoDB relied on the older library. As a result, my previous binaries for 3.0.14 and 3.0.9 do not run under Raspbian Stretch. Given this change as well as other changes to MongoDB source and newer compilers, I could no longer compile MongoDB 3.0.14 with SSL.
After a few source tweaks and use of various compiler flags, I have manged to compile MongoDB core apps and tools. These binaries do NOT support SSL and only run under Raspian Stretch on a Raspberry Pi 3. [UPDATE — 2018 Mar 22] I have confirmed that these binaries work on the latest Raspberry Pi 3 Model B+ with the March 2018 version of Raspbian.