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Updated MinGW64 (MSYS2) build guide (#59)

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@ -102,59 +102,59 @@ git submodule update --init --recursive
## Method II: MinGW-w64 Build with MSYS2
### Prerequisites to install
* [MSYS2](https://www.msys2.org)
* [Vulkan SDK](https://vulkan.lunarg.com/sdk/home#windows) - **Make sure to select Latest SDK.**
* Make sure to follow the instructions and update to the latest version by running `pacman -Syu` as many times as needed.
### Install yuzu dependencies for MinGW-w64
* Open the `MSYS2 MinGW 64-bit` (mingw64.exe) shell
* Download and install all dependencies using: `pacman -Syu git make mingw-w64-x86_64-SDL2 mingw-w64-x86_64-cmake mingw-w64-x86_64-python-pip mingw-w64-x86_64-qt5 mingw-w64-x86_64-toolchain autoconf libtool automake-wrapper`
* Add MinGW binaries to the PATH: `echo 'PATH=/mingw64/bin:$PATH' >> ~/.bashrc`
* Add glslangValidator to the PATH: `echo 'PATH=$(readlink -e /c/VulkanSDK/*/Bin/):$PATH' >> ~/.bashrc`
### Clone the yuzu repository with Git
**from Codeberg repo (the `--recursive` option automatically clones the required Git submodules):**
### Get Vulkan SDK and install dependencies
```
git clone --depth 1 --recursive https://codeberg.org/litucks/torzu.git
cd torzu
```
**from Torzu repo (assuming Tor is installed as a service):**
```
git -c http.proxy=socks5h://127.0.0.1:9050 clone --depth 1 http://vub63vv26q6v27xzv2dtcd25xumubshogm67yrpaz2rculqxs7jlfqad.onion/torzu-emu/torzu.git
cd torzu
git submodule update --init --recursive
pacman -Syu git make mingw-w64-x86_64-SDL2 mingw-w64-x86_64-cmake mingw-w64-x86_64-qt5 mingw-w64-x86_64-toolchain
```
### Run the following commands to build yuzu (dynamically linked build)
### Setup environment variables
```
export PATH="<Absolute path to the Bin folder in Vulkan SDK>:$PATH"
export VCPKG_DEFAULT_HOST_TRIPLET=x64-mingw-static
export VCPKG_DEFAULT_TRIPLET=x64-mingw-static
```
We have to manually set some VCPKG variables for some reason.
This issue probably already exists in the original Yuzu.
```bash
### Generating makefile
```
mkdir build && cd build
cmake -G "MSYS Makefiles" -DYUZU_USE_BUNDLED_VCPKG=ON -DYUZU_TESTS=OFF ..
make -j$(nproc)
# test yuzu out with
./bin/yuzu.exe
cmake -G "MSYS Makefiles" -DYUZU_USE_BUNDLED_VCPKG=ON -DYUZU_TESTS=OFF -DVCPKG_TARGET_TRIPLET=x64-mingw-static ..
```
`DVCPKG_TARGET_TRIPLET` has to be overriden to `x64-mingw-static` here to generate a static build that doesn't require extra DLLs to be packaged.
* *(Note: This build is not a static build meaning that you need to include all of the DLLs with the .exe in order to use it!)*
e.g.
```Bash
cp externals/ffmpeg-*/bin/*.dll bin/
### Build yuzu
```
make -j4 yuzu
```
The reason we are not using `make all` is that linker will fail.
This is because Yuzu developer didn't set linker flags properly in their `CMakeLists.txt` for some reason. So we have add something manually.
```
VERBOSE=1 make yuzu
```
This will shows the exact link command, should be something like:
```
cd ***/src/yuzu && /mingw64/bin/c++.exe -O3 -DNDEBUG -Wl,--subsystem,windows -Wl,--whole-archive ...
```
Copy the command line and add the following arguments:
```
-static-libstdc++ -lws2_32 -s -Wl,--Map,../../bin/yuzu.map
```
Explanation of the extra arguments:
- `-static-libstdc++`: Force usage of static libstdc++, without this argument the binary will have no entrypoint.
- `-lws2_32`: Link the ws2_32.a provided by mingw.
- `-s`: Optional, strip the symbols from the output binary.
- `-Wl,--Map,../../bin/yuzu.map`: Optional, output a separated linker map to `../../bin/yuzu.map`
Please note that `-lw2_32` is already added, but the order is not correct and hence cause linking fails.
Bonus Note: Running programs from inside `MSYS2 MinGW x64` shell has a different %PATH% than directly from explorer. This different %PATH% has the locations of the other DLLs required.
![image](https://user-images.githubusercontent.com/190571/165000848-005e8428-8a82-41b1-bb4d-4ce7797cdac8.png)
Now the built executable should work properly. Repeating step 4 should build `yuzu-cmd` as well.
Some DLLs (e.g., Qt) are still required as they cannot being linked statically. Copying those DLLs from the latest release is one option.
### Building without Qt (Optional)
Doesn't require the rather large Qt dependency, but you will lack a GUI frontend:
* Pass the `-DENABLE_QT=no` flag to cmake
* Pass the `-DENABLE_QT=NO` flag to cmake
## Method III: CLion Environment Setup