Admin/polyml/INSTALL-MinGW
2016-10-21 wenzelm 2016-10-21 minor updates after fresh installation of virtual Windows 2012: retain old versions of mingw for this brittle build process;
2015-08-31 wenzelm 2015-08-31 support x86_64-windows;
2015-08-19 wenzelm 2015-08-19 clarified x86-windows setup;