msys2 home to Windows Home
Assuming your username is User and your Windows home directory is
C:\Users\User then go to C:\msys64 (or C:\msys32) in Windows
Command Prompt:
C:\msys64\home>ren User oldUser
C:\msys64\home>mklink /J User C:\Users\User
C:\msys64\home>move oldUser\*.* User
C:\msys64\home\oldUser\.bashrc
...
C:\msys64\home\oldUser\.profile
. 6 dir(s) moved.
C:\msys64\home>move oldUser\.ssh User
. 1 dir(s) moved.
Then start the msys2 shell and you should be in your Windows home directory.
Install msys2 gcc compiler
pacman -S mingw-w64-x86_64-gcc
pacman -S mingw-w64-i686-gcc
If the full toolchain is required (includes things like ada) then:
pacman -S mingw-w64-x86_64-toolchain
pacman -S mingw-w64-i686-toolchain
Also make:
pacman -S make
There is a mingw-w64-x86_64-make I assume it handles windows paths
better?