Comment 2 for bug 1752150

I did a complete new Msys2 installation. I noted that the link in the "easy way" instructions is obsolete (2015) so I went to msys2 and used their installer.

I did this

pacman -Syuu several times until there were no more updates

pacman -S base-devel git
pacman -S mingw-w64-x86_64-oce //At the suggestion of craftyjon of kicad forums

mkdir src
cd src
git clone https://github.com/Alexpux/MINGW-packages
cd MinGW-packages/mingw-w64-kicad-git

modify C:\msys64\etc\profile to include
OCE_DIR='/mingw64/lib/oce/'

makepkg-mingw -is

Again the system ran for several hours and failed exactly the same way, despite the fact I can, indeed, find the files

$ find $OCE_DIR -name "OCE*.cmake"
/mingw64/lib/oce/OCE-libraries-release.cmake
/mingw64/lib/oce/OCE-libraries.cmake
/mingw64/lib/oce/OCEConfig.cmake
/mingw64/lib/oce/OCEConfigVersion.cmake

I did notice that the compile actually had errors (see attachment).

It seems highly likely that the Kicad make instructions for windows are obsolete and/or there is an issue with the packages.