statically built engine gives a "Segmentation fault' on Ubuntu 14.04

[lazydroid]

I have Ubuntu 14 (g++ 4.8, unable to build the engine because of c++14 requirements), and another box with Ubuntu 16 (g++ 5.4, which builds the engine just fine).

Problem is, when I build the engine statically, hopefully, with no extra dependencies, and copy it to the Ubuntu 14 box, it starts, makes a few moves from the book, then (when the position is not in the book anymore and some thinking is requred), prints "Segmentation Fault" and dies.

I wonder what could be the reason, and is there any way to run the engine on Ubuntu 14 ?