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Modernize CMake build system (#1434)

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These changes modernize the CMake build system to (hopefully) match newer best practices

* Library linking is simpler and more automatic because of using imported targets
* Multi-configuration builds should be supported (Ninja Multi-Config, Visual Studio, etc. generators)
* Clean up build options using cmake_dependent_option
* Let CMake do its job in more cases, like finding the math/dl libraries and detecting and enabling LTO support
* Remove platform-specific kludges like the Fedora/flatpak LTO workaround and a bunch of Windows stuff
* Simplify Windows static builds
* Consistent formatting
This commit is contained in:
Nadia Holmquist Pedersen
2022-05-21 19:54:55 +02:00
committed by GitHub
parent 6c7485d017
commit 94b33c924e
8 changed files with 275 additions and 306 deletions
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README.md
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@ -34,69 +34,75 @@ As for the rest, the interface should be pretty straightforward. If you have a q
## How to build
### Linux:
### Linux
1. Install dependencies:
* Ubuntu 22.04: `sudo apt install cmake libcurl4-gnutls-dev libpcap0.8-dev libsdl2-dev qtbase5-dev libslirp-dev libarchive-dev libepoxy-dev`
* Older Ubuntu: `sudo apt install cmake libcurl4-gnutls-dev libpcap0.8-dev libsdl2-dev qt5-default libslirp-dev libarchive-dev libepoxy-dev`
* Arch Linux: `sudo pacman -S base-devel cmake git libpcap sdl2 qt5-base libslirp libarchive libepoxy`
3. Download the melonDS repository and prepare:
```bash
git clone https://github.com/Arisotura/melonDS
cd melonDS
```
1. Install dependencies (for example on Debian/Ubuntu: `sudo apt install cmake libcurl4-gnutls-dev libpcap0.8-dev libsdl2-dev qtbase5-dev libslirp-dev libarchive-dev libepoxy-dev`)
2. Download the melonDS repository and prepare:
```bash
git clone https://github.com/Arisotura/melonDS
cd melonDS
mkdir build && cd build
```
3. Compile:
```bash
cmake ..
make -j$(nproc --all)
```
### Windows:
```bash
cmake -B build
cmake --build build -j$(nproc --all)
```
### Windows
1. Install [MSYS2](https://www.msys2.org/)
2. Open the **MSYS2 MinGW 64-bit** terminal
3. Update the packages using `pacman -Syu` and reopen the terminal if it asks you to
4. Download the melonDS repository and prepare:
```bash
git clone https://github.com/Arisotura/melonDS
cd melonDS
mkdir build && cd build
```
4. Install git to clone the repository
```bash
pacman -S git
```
5. Download the melonDS repository and prepare:
```bash
git clone https://github.com/Arisotura/melonDS
cd melonDS
```
#### Dynamic builds (with DLLs)
5. Install dependencies: `pacman -S git make mingw-w64-x86_64-{cmake,mesa,SDL2,toolchain,qt5,libslirp,libarchive,libepoxy}`
5. Install dependencies: `pacman -S make mingw-w64-x86_64-{cmake,mesa,SDL2,toolchain,qt5,libslirp,libarchive,libepoxy}`
6. Compile:
```bash
cmake .. -G "MSYS Makefiles"
make -j$(nproc --all)
cmake -B build -G "MSYS Makefiles"
cmake --build build -j$(nproc --all)
cd build
../tools/msys-dist.sh
```
If everything went well, melonDS and the libraries it needs should now be in the `dist` folder.
#### Static builds (without DLLs, standalone executable)
5. Install dependencies: `pacman -S git make mingw-w64-x86_64-{cmake,mesa,SDL2,toolchain,qt5-static,libslirp,libarchive,libepoxy}`
5. Install dependencies: `pacman -S make mingw-w64-x86_64-{cmake,mesa,SDL2,toolchain,qt5-static,libslirp,libarchive,libepoxy}`
6. Compile:
```bash
cmake .. -G 'MSYS Makefiles' -DBUILD_STATIC=ON -DQT5_STATIC_DIR=/mingw64/qt5-static
make -j$(nproc --all)
mkdir dist && cp melonDS.exe dist
cmake -B build -G 'MSYS Makefiles' -DBUILD_STATIC=ON -DCMAKE_PREFIX_PATH=/mingw64/qt5-static
cmake --build build -j$(nproc --all)
```
If everything went well, melonDS should now be in the `dist` folder.
If everything went well, melonDS should now be in the `build` folder.
### macOS:
### macOS
1. Install the [Homebrew Package Manager](https://brew.sh)
2. Install dependencies: `brew install git pkg-config cmake sdl2 qt@6 libslirp libarchive libepoxy`
3. Download the melonDS repository and prepare:
```zsh
git clone https://github.com/Arisotura/melonDS
cd melonDS
mkdir build && cd build
```
```zsh
git clone https://github.com/Arisotura/melonDS
cd melonDS
```
4. Compile:
```zsh
cmake .. -DCMAKE_PREFIX_PATH="$(brew --prefix qt@6);$(brew --prefix libarchive)" -DUSE_QT6=ON -DMACOS_BUNDLE_LIBS=ON
make -j$(sysctl -n hw.logicalcpu)
cmake -B build -DCMAKE_PREFIX_PATH="$(brew --prefix qt@6);$(brew --prefix libarchive)" -DUSE_QT6=ON
cmake --build build -j$(sysctl -n hw.logicalcpu)
```
If everything went well, melonDS.app should now be in the current directory.
If everything went well, melonDS.app should now be in the `build` directory.
#### Self-contained app bundle
If you want an app bundle that can be distributed to other computers without needing to install dependencies through Homebrew, you can additionally run `
../tools/mac-bundle.rb melonDS.app` after the build is completed, or add `-DMACOS_BUNDLE_LIBS=ON` to the first CMake command.
## TODO LIST
* better DSi emulation