# -----------------------------------------------------------------------------
# Abort if the user runs the script in an "MSYS2 MSYS" shell.
-if [ $MSYSTEM = "MSYS2" ]; then
+if [ $MSYSTEM = "MSYS" ]; then
echo "Building in an 'MSYS2 MSYS' shell will not work, aborting."
echo "Please use the 'MSYS2 MinGW 64-bit' (or 32-bit) shell."
exit