Hi DiMarco,

it's in the makefile, edit with nano or vi
xCXXFLAGS= -std=c++11 ( add to front )
Then you need to perform
make -f makefile.unix clean
Then
make -f makefile.unix

This is from the discord channel, if you need a link it's at the top of the page.

I'll update this fix over the weekend and also add the Ubunto 16 wallet binary.

Regards

Jimmy