Peter Environments differ, but heXon builds. One difference I noticed is that heXon does not include
Dry/Dry.h anywhere, maybe it's causing conflicts. I modified Open Saucer so it doesn't include it either. Could you try one more
git pull and see if it builds now? You may have to clean the build folder.
I run 64-bit Linux Mint Una, Xfce edition. Also, I tend to install Linux from a USB flash drive using
mintstick. In Xubuntu you can install
usb-creator-gtk which does the same.
Thanks again for your time and efforts.