2> Option cannot change across modules: 0 2>xilink: : error #10014: problem during multi-file optimization compilation (code 1) 2>xilink: : error #10014: problem during multi-file optimization compilation (code 1)
This error message is not meaningful, nor useful.
The problem is when I link statically *.lib that was compiled with offload constructs set to "None" and *.exe was compiled with "Optional".
The compiler/linker should report WHICH module(s) contains different/incompatible options. Either two *.obj's, or *.lib. It took me like 2 hours until I figured out what's wrong.