yuzu-wiki/Building-for-Linux.md
2020-04-18 19:49:26 -03:00

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### Dependencies
You'll need to download and install the following to build yuzu:
* [SDL2](https://www.libsdl.org/download-2.0.php):
| Distro | Commands
| ------ | ----------------
| Arch | `sudo pacman -S sdl2`
| Ubuntu | `sudo apt-get install libsdl2-2.0-0 libsdl2-dev`
| Debian | `sudo apt-get install sdl2 libsdl2-2.0-0 libsdl2-dev`
| Fedora | `sudo dnf install SDL2-devel`
| Gentoo | `emerge media-libs/libsdl2`
* [Qt](https://qt-project.org/downloads):
| Distro | Commands
| ------ | ---------------
| Arch | `sudo pacman -S qt5`
| Debian | `sudo apt-get install qtbase5-dev libqt5opengl5-dev qtbase5-private-dev`
| Fedora | `sudo dnf install qt5-qtbase qt5-qtbase-devel`
| Gentoo | `emerge dev-qt/qtcore dev-qt/qtopengl`
* GCC v7+ (for C++17 support) & misc:
| Distro | Commands
| ------ | ----------------------
| Arch | `sudo pacman -S base-devel`
| Debian | `sudo apt-get install build-essential libboost-all-dev`
| Fedora | `sudo dnf install gcc`
| Gentoo | `emerge =sys-devel/gcc-7.1.0`
* [CMake](https://www.cmake.org/) 3.6+:
| Distro | Commands
| ------ | -----------------
| Arch | `sudo pacman -S cmake`
| Debian | `sudo apt-get install cmake`
| Fedora | `sudo dnf install cmake`
| Gentoo | `emerge dev-util/cmake`
* [Python2](https://www.python.org/download/releases/2.7/) 2.7:
| Distro | Commands
| ------ | ------------------
| Arch | `sudo pacman -S python2`
| Debian | `sudo apt install python2`
| Fedora | `sudo dnf install python2`
* Arch specific dependencies:
`sudo pacman -S gpm zip openssl zstd sndio mbedtls`
Note: A symlink is also needed on arch based distros: `sudo ln -T /usr/lib/libsndio.so.7.0 /usr/lib/libsndio.so.6.1`
Note: Depending on your distro, the version of CMake you get may not be what's required to build yuzu. Check with `cmake --version`. Version 3.6 or greater is required for you to be able to build!
* [Clang](https://github.com/llvm-mirror/clang) 3.8 (optional build alternative):
| Distro | Commands
| ------ | ------------------
| Arch | `sudo pacman -S clang`, `libc++` is in the AUR. Use `yay` to install it.
| Debian | `sudo apt-get install clang libc++-dev` (in some distros, clang-3.8)
| Gentoo | `emerge sys-devel/clang sys-libs/libcxx`
### Cloning yuzu with Git
**Master:**
```bash
git clone --recursive https://github.com/yuzu-emu/yuzu
cd yuzu
```
**Mainline (no assert):**
```bash
git clone --recursive https://github.com/yuzu-emu/yuzu-mainline
cd yuzu-mainline
```
The `--recursive` option automatically clones the required Git submodules.
### Building yuzu in Debug Mode (Slow)
#### Using GCC
```bash
mkdir build && cd build
cmake ../
make
sudo make install
```
Note: You can use **make -jN** where N is the number of processors available to accelerate building.
Optionally, you can use `cmake -i ..` to adjust various options (e.g. disable the Qt GUI).
#### Using clang
Note: It is important you use libc++ vs., otherwise your build will likely fail. libc++ is not 100% complete on GNU/Linux, but works well for this build. The libstdc++ std::string is a different data structure than the libc++ std::string. See: [LLVM.org](https://llvm.org/svn/llvm-project/www-releases/trunk/3.8.0/projects/libcxx/docs/UsingLibcxx.html). If libc++ is not used, some warnings are treated as errors. Using clang is only really recommended for users not using GCC >= 5. Also see [Clang Comparison](https://clang.llvm.org/comparison.html).
```bash
mkdir build && cd build
cmake -DCMAKE_CXX_COMPILER=clang++-3.8 \
-DCMAKE_C_COMPILER=clang-3.8 \
-DCMAKE_CXX_FLAGS="-O2 -g -stdlib=libc++" \
..
make
sudo make install # (currently doesn't work, needs to be fixed)
```
Debian/Ubuntu: Owing to bug [#808086](https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=808086) the build might
fail. To have it build, add the following after line 1938 of `/usr/include/c++/v1/string`. (see discussion on
[StackOverflow](https://stackoverflow.com/questions/37096062/get-a-basic-c-program-to-compile-using-clang-on-ubuntu-16)
for more details.)
```cpp
#if _LIBCPP_STD_VER <= 14
_NOEXCEPT_(is_nothrow_copy_constructible<allocator_type>::value)
#else
_NOEXCEPT
#endif
```
Additionally, on Ubuntu, do:
```bash
sudo apt-get install libc++abi-dev && sudo ln -s /usr/include/libcxxabi/__cxxabi_config.h /usr/include/c++/v1/__cxxabi_config.h
```
### Building yuzu in Release Mode (Optimized)
```bash
mkdir build && cd build
cmake .. -DCMAKE_BUILD_TYPE=Release
make
sudo make install # (currently doesn't work, needs to be fixed)
```
### Building with debug symbols
```bash
cmake .. -DCMAKE_BUILD_TYPE=RelWithDebInfo
make
```
### Running without installing
After building, the binaries `yuzu` and `yuzu-cmd` (depending on your build options) will end up in `build/bin/`.
```bash
# SDL
cd build/bin/
./yuzu-cmd
# Qt
cd build/bin/
./yuzu
```
### Debugging
```bash
cd data
gdb ../build/bin/yuzu # Start GDB
(gdb) run # Run yuzu under GDB
<crash>
(gdb) bt # Print a backtrace of the entire callstack to see which codepath the crash occurred on
```