The current version of the MSYS make is giving headaches. I would like
to upgrade to the official version of GNU make-3.80 for MSYS without the
changes that were added specific for Cygwin. This does away with
--win32 and --unix switches as well as the MAKE_MODE environment
variable. The changes that were required for Cygwin are still required
for Cygwin but are not necessary for MSYS. Please check that the
mingw32-make-3.80-3.exe package can be a replacement for the --win32 mode.