-configuring and building the package. The "MSYS2 MSYS" shell will not work.
-
-The "old" MinGW from http://mingw.org/ is not supported.
+configuring and building the package. Using the "MSYS2 MSYS" shell will build
+against the Cygwin compatibility layer; this works, but port enumeration and
+metadata will not be available, and binaries will depend on Cygwin. The builds
+produced by MinGW-w64 are normal Windows DLLs without additional dependencies.