MinGW for native Windows support
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- always "Run as administrator ..."
- download from https://www.msys2.org
install target c:\msys64
- package update and installation within msys2 shell:
pacman -Syuu
pacman -Su
pacman -S --needed base-devel gmp-devel mingw-w64-x86_64-toolchain mingw-w64-x86_64-gmp
- build (as regular user) e.g. on vmnipkow9 with Cygwin-Terminal from Isabelle2018
(to avoid address relocation problems):
isabelle build_polyml -M /cygdrive/c/msys64 -m32 -s sha1 src
isabelle build_polyml -M /cygdrive/c/msys64 -m64 -s sha1 src