On Windows, the standard library translated all LF bytes in the binary
stream to CR+LF...

Thanks to Vítek ;)

The problem was the getRow() method, there is only getRowFast() which
does not work cross-device.

I'm assuming that the 'GridEntityCrossStencil' enum constant was cast to 1

This does not need any code in cmake as the macro is defined by the
compiler itself. See also the table here:
http://nadeausoftware.com/articles/2012/10/c_c_tip_how_detect_compiler_name_and_version_using_compiler_predefined_macros