Fix Win64 build to actually run and only download the x64 parts of MinGW (#1022)

.circleci/config.yml

@@ -69,12 +69,16 @@ jobs:
       - store_artifacts: {path: ./build/devilutionx.exe, destination: devilutionx_x86.exe}
   windows_x64:
     docker:
-      - image: debian:stable
+      - image: ubuntu:20.04
+        environment:
+           TZ: "America/Los_Angeles"
     working_directory: ~/repo
+    environment:
+      TZ: "America/Los_Angeles"
     steps:
       - checkout
       - run: apt-get update -y
-      - run: apt-get install -y cmake gcc-mingw-w64 g++-mingw-w64 wget git sudo
+      - run: DEBIAN_FRONTEND="noninteractive" TZ="America/Los_Angeles" apt-get install -y cmake gcc-mingw-w64-x86-64 g++-mingw-w64-x86-64 wget git sudo
       - run: Packaging/windows/mingw-prep64.sh
       - run: cmake -S. -Bbuild -DNIGHTLY_BUILD=ON -DCMAKE_TOOLCHAIN_FILE=../CMake/mingwcc64.cmake
       - run: cmake --build build -j $(nproc)

README.md

@@ -97,8 +97,7 @@ cmake --build . -j $(sysctl -n hw.ncpuonline)
 
 ### 32-bit
 
-Download and place the 32bit MinGW Development Libraries of [SDL2](https://www.libsdl.org/download-2.0.php), [SDL2_mixer](https://www.libsdl.org/projects/SDL_mixer/), [SDL2_ttf](https://www.libsdl.org/projects/SDL_ttf/) and [Libsodium](https://github.com/jedisct1/libsodium/releases) in `/usr/i686-w64-mingw32`. This can be done automatically by running 
-`Packaging/windows/mingw-prep.sh`.
+Download and place the 32bit MinGW Development Libraries of [SDL2](https://www.libsdl.org/download-2.0.php), [SDL2_mixer](https://www.libsdl.org/projects/SDL_mixer/), [SDL2_ttf](https://www.libsdl.org/projects/SDL_ttf/) and [Libsodium](https://github.com/jedisct1/libsodium/releases) in `/usr/i686-w64-mingw32`. This can be done automatically by running `Packaging/windows/mingw-prep.sh`.
 NOTE: SDL2 2.0.12 appears to not compile correctly.
 
 ```
@@ -107,12 +106,11 @@ sudo apt-get install cmake gcc-mingw-w64-i686 g++-mingw-w64-i686
 
 ### 64-bit
 
-Download and place the 64bit MinGW Development Libraries of [SDL2](https://www.libsdl.org/download-2.0.php), [SDL2_mixer](https://www.libsdl.org/projects/SDL_mixer/), [SDL2_ttf](https://www.libsdl.org/projects/SDL_ttf/) and [Libsodium](https://github.com/jedisct1/libsodium/releases) in `/usr/x86_64-w64-mingw32`. This can be done automatically by running 
-`Packaging/windows/mingw-prep64.sh`.
+Download and place the 64bit MinGW Development Libraries of [SDL2](https://www.libsdl.org/download-2.0.php), [SDL2_mixer](https://www.libsdl.org/projects/SDL_mixer/), [SDL2_ttf](https://www.libsdl.org/projects/SDL_ttf/) and [Libsodium](https://github.com/jedisct1/libsodium/releases) in `/usr/x86_64-w64-mingw32`. This can be done automatically by running `Packaging/windows/mingw-prep64.sh`.
 NOTE: SDL2 2.0.12 appears to not compile correctly.
 
 ```
-sudo apt-get install cmake gcc-mingw-w64 g++-mingw-w64
+sudo apt-get install cmake gcc-mingw-w64-x86-64 g++-mingw-w64-x86-64
 ```
 ### Compiling