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README: 32-bit Linux and other distributions mentioned #226

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44 changes: 42 additions & 2 deletions README.md
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Expand Up @@ -50,12 +50,52 @@ cmake --build --preset mac --config [Debug|Release]

#### Building - Linux
```sh
sudo dpkg --add-architecture i386
sudo apt update
sudo apt install -y --no-install-recommends ninja-build cmake g++ libsdl1.2-dev libsdl-image1.2-dev libncurses-dev libxext6:i386 zlib1g-dev
sudo apt install -y --no-install-recommends ninja-build cmake g++ libgtest-dev \
libsdl1.2-dev libsdl-image1.2-dev libncurses-dev libxext-dev zlib1g-dev
cmake --preset linux -D LOGGER=[ON|OFF]
cmake --build --preset linux --config [Debug|Release]
```

<details>
<summary>32-bit Linux & other distributions</summary>

**Ubuntu / Debian 32-bit build:**

Note: `libsdl1.2-dev` can not be installed for 64 and 32 bit at the same time, but on Ubuntu 24.04 and Debian 12
it can be replaced by `libsdl1.2-compat-dev:amd64` and `libsdl1.2-compat-dev:i386`.

```sh
sudo dpkg --add-architecture i386
sudo apt update
sudo apt install -y --no-install-recommends ninja-build cmake g++ g++-multilib libgtest-dev:i386 \
libsdl1.2-dev:i386 libsdl-image1.2-dev:i386 libncurses-dev:i386 libxext6:i386 zlib1g-dev:i386

cmake --preset linux-32 -D LOGGER=[ON|OFF]
cmake --build --preset linux-32 --config [Debug|Release]

# when not using a preset:
cmake .. -GNinja -DCMAKE_TOOLCHAIN_FILE=../tools/toolchain-32-bit.cmake
ninja
```

**Fedora dependencies:**
```sh
dnf install -y --setopt=install_weak_deps=False \
ninja-build sdl12-compat-devel SDL_image-devel ncurses-devel libXext-devel zlib-devel
# packages for 32-bit builds:
sdl12-compat-devel.i686 SDL_image-devel.i686 ncurses-devel.i686 libXext-devel.i686 glibc-devel.i686 \
mesa-libGLU-devel.i686 libglvnd-devel.i686 zlib-devel.i686
# for cmake calls, see above
```

**openSUSE Tumbleweed dependencies:**
```sh
zypper install -y cmake ninja gcc gcc-c++ sdl12_compat-devel libSDL_image-devel libXext-devel ncurses-devel zlib-devel
# (no 32bit build possible, missing sdl1.2 devel package)
# for cmake calls, see above
```
</details>

## Contributing
Anyone can contribute! We have an active Discord presence at [Descent Developer Network](https://discord.gg/GNy5CUQ). If you are interested in maintaining the project on a regular basis, please contact Kevin Bentley.