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92 lines
2.1 KiB
Markdown
92 lines
2.1 KiB
Markdown
+++
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title = "Setting Up SDL2 with CMake"
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description = "How to setup and use SDL2 using the CMake build tool."
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date = 2019-04-27
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[taxonomies]
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categories = ["cmake", "sdl2"]
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+++
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## Installing CMake
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Most common distributions have cmake available on their package manager repostories:
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```bash
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# Debian based
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sudo apt install cmake
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# Arch
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pacman -S cmake
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```
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## Install SDL2 libraries
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I only know about the debian based ones, if you are on another distro you should look them up.
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```bash
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sudo apt install libsdl2-dev libsdl2-image-dev libsdl2-mixer-dev libsdl2-net-dev libsdl2-ttf-dev libsdl2-gfx-dev
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```
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## Directory Structure
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Here is a common directory structure when using cmake to find packages:
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```
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├── cmake
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│ ├── FindSDL2.cmake
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│ ├── FindSDL2_mixer.cmake
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│ └── FindSDL2_net.cmake
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├── CMakeLists.txt
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└── src
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└── main.cpp
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```
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You can find the cmake files to find SDL2 and it's components
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[here](https://github.com/aminosbh/sdl2-cmake-modules)
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Or you can use this simple command:
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```bash
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cd cmake
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wget https://raw.githubusercontent.com/aminosbh/sdl2-cmake-modules/master/FindSDL2{,_gfx,_image,_mixer,_net,_ttf}.cmake
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```
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## Creating the CMakeLists.txt file
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```cmake
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cmake_minimum_required(VERSION 3.13)
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project(MyProject)
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# Needed so that cmake uses our find modules.
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list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
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find_package(SDL2 REQUIRED)
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find_package(SDL2_net REQUIRED)
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find_package(SDL2_mixer REQUIRED)
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find_package(SDL2_image REQUIRED)
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find_package(SDL2_gfx REQUIRED)
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find_package(SDL2_ttf REQUIRED)
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set(SOURCE_FILES
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src/main.cpp
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)
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include_directories(src)
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add_executable(MyProject ${SOURCE_FILES})
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target_link_libraries(MyProject SDL2::Main SDL2::Net SDL2::Mixer SDL2::Image SDL2::TTF SDL2::GFX)
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```
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And thats it! Now you can remove the SDL2 components you don't want to use.
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## Building
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Following the standard cmake procedure:
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```bash
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mkdir build
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cd build
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cmake ..
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make -j${nproc}
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``` |