As Marius Bakke pointed out on IRC, this issue is related to a change in CMake where after 3.15 they removed the explicit `#define _FILE_OFFSET_BITS 64`. The solution solution to this is to add
--8<---------------cut here---------------start------------->8--- CFLAGS="-D_FILE_OFFSET_BITS=64" CXXFLAGS="-D_FILE_OFFSET_BITS=64" --8<---------------cut here---------------end--------------->8--- to CMakes compilation procedure. This is a core-updates change. I will leave this issue open for now in case this needs more investigation. Since I am just coming off of a haitus I think there are changes to the core-updates and staging procedures so I dont think I am comfortable making this change myself. Brett Gilio
