Use vendored libslirp

.github/workflows/build-ubuntu.yml

@@ -21,7 +21,7 @@ jobs:
         sudo rm -f /etc/apt/sources.list.d/dotnetdev.list /etc/apt/sources.list.d/microsoft-prod.list
         sudo apt update
         sudo apt install --allow-downgrades cmake ninja-build extra-cmake-modules libpcap0.8-dev libsdl2-dev \
-          qt6-{base,base-private,multimedia}-dev libslirp0 libslirp-dev libarchive-dev libzstd-dev libfuse2
+          qt6-{base,base-private,multimedia}-dev libarchive-dev libzstd-dev libfuse2
     - name: Configure
       run: cmake -B build -G Ninja -DUSE_QT6=ON -DCMAKE_INSTALL_PREFIX=/usr
     - name: Build
@@ -63,7 +63,7 @@ jobs:
           apt update
           apt -y full-upgrade
           apt -y install git {gcc-12,g++-12}-aarch64-linux-gnu cmake ninja-build extra-cmake-modules \
-            {libsdl2,qt6-{base,base-private,multimedia},libslirp,libarchive,libzstd}-dev:arm64 \
+            {libsdl2,qt6-{base,base-private,multimedia},libarchive,libzstd}-dev:arm64 \
             pkg-config dpkg-dev
       - name: Check out source
         uses: actions/checkout@v4

.github/workflows/build-windows.yml

@@ -27,7 +27,7 @@ jobs:
           update: true
 
     - name: Install dependencies
-      run: pacman -Sq --noconfirm git pkgconf mingw-w64-x86_64-{cmake,SDL2,qt5-static,libslirp,libarchive,toolchain}
+      run: pacman -Sq --noconfirm git pkgconf mingw-w64-x86_64-{cmake,SDL2,qt5-static,libarchive,toolchain}
 
     - name: Configure
       working-directory: ${{runner.workspace}}

README.md

@@ -34,9 +34,9 @@ As for the rest, the interface should be pretty straightforward. If you have a q
 
 ### Linux
 1. Install dependencies:
-   * Ubuntu 22.04: `sudo apt install cmake extra-cmake-modules libcurl4-gnutls-dev libpcap0.8-dev libsdl2-dev qtbase5-dev qtbase5-private-dev qtmultimedia5-dev libslirp-dev libarchive-dev libzstd-dev`
-   * Older Ubuntu: `sudo apt install cmake extra-cmake-modules libcurl4-gnutls-dev libpcap0.8-dev libsdl2-dev qt5-default qtbase5-private-dev qtmultimedia5-dev libslirp-dev libarchive-dev libzstd-dev`
-   * Arch Linux: `sudo pacman -S base-devel cmake extra-cmake-modules git libpcap sdl2 qt5-base qt5-multimedia libslirp libarchive zstd`
+   * Ubuntu 22.04: `sudo apt install cmake extra-cmake-modules libcurl4-gnutls-dev libpcap0.8-dev libsdl2-dev qtbase5-dev qtbase5-private-dev qtmultimedia5-dev libarchive-dev libzstd-dev`
+   * Older Ubuntu: `sudo apt install cmake extra-cmake-modules libcurl4-gnutls-dev libpcap0.8-dev libsdl2-dev qt5-default qtbase5-private-dev qtmultimedia5-dev libarchive-dev libzstd-dev`
+   * Arch Linux: `sudo pacman -S base-devel cmake extra-cmake-modules git libpcap sdl2 qt5-base qt5-multimedia libarchive zstd`
 3. Download the melonDS repository and prepare:
    ```bash
    git clone https://github.com/melonDS-emu/melonDS
@@ -63,7 +63,7 @@ As for the rest, the interface should be pretty straightforward. If you have a q
    cd melonDS
    ```
 #### Dynamic builds (with DLLs)
-5. Install dependencies: `pacman -S mingw-w64-x86_64-{cmake,SDL2,toolchain,qt5-base,qt5-svg,qt5-multimedia,qt5-tools,libslirp,libarchive,zstd}`
+5. Install dependencies: `pacman -S mingw-w64-x86_64-{cmake,SDL2,toolchain,qt5-base,qt5-svg,qt5-multimedia,qt5-tools,libarchive,zstd}`
 6. Compile:
    ```bash
    cmake -B build
@@ -74,7 +74,7 @@ As for the rest, the interface should be pretty straightforward. If you have a q
 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 mingw-w64-x86_64-{cmake,SDL2,toolchain,qt5-static,libslirp,libarchive,zstd}`
+5. Install dependencies: `pacman -S mingw-w64-x86_64-{cmake,SDL2,toolchain,qt5-static,libarchive,zstd}`
 6. Compile:
    ```bash
    cmake -B build -DBUILD_STATIC=ON -DCMAKE_PREFIX_PATH=/mingw64/qt5-static
@@ -84,7 +84,7 @@ If everything went well, melonDS should now be in the `build` folder.
 
 ### macOS
 1. Install the [Homebrew Package Manager](https://brew.sh)
-2. Install dependencies: `brew install git pkg-config cmake sdl2 qt@6 libslirp libarchive zstd`
+2. Install dependencies: `brew install git pkg-config cmake sdl2 qt@6 libarchive zstd`
 3. Download the melonDS repository and prepare:
    ```zsh
    git clone https://github.com/melonDS-emu/melonDS

src/frontend/qt_sdl/CMakeLists.txt

@@ -84,12 +84,15 @@ if (BUILD_STATIC)
 endif()
 
 pkg_check_modules(SDL2 REQUIRED IMPORTED_TARGET sdl2)
-pkg_check_modules(Slirp REQUIRED slirp)
 pkg_check_modules(LibArchive REQUIRED IMPORTED_TARGET libarchive)
 pkg_check_modules(Zstd REQUIRED IMPORTED_TARGET libzstd)
 
 fix_interface_includes(PkgConfig::SDL2 PkgConfig::LibArchive)
 
+add_subdirectory("../libslirp"
+	"${CMAKE_BINARY_DIR}/libslirp"
+	EXCLUDE_FROM_ALL)
+
 add_compile_definitions(ARCHIVE_SUPPORT_ENABLED)
 
 add_executable(melonDS ${SOURCES_QT_SDL})
@@ -162,9 +165,7 @@ endif()
 target_link_libraries(melonDS PRIVATE core)
 target_link_libraries(melonDS PRIVATE PkgConfig::SDL2 PkgConfig::LibArchive PkgConfig::Zstd)
 target_link_libraries(melonDS PRIVATE ${QT_LINK_LIBS} ${CMAKE_DL_LIBS})
-
-target_include_directories(melonDS PRIVATE "${Slirp_INCLUDE_DIRS}")
-target_link_libraries(melonDS PRIVATE "${Slirp_LINK_LIBRARIES}")
+target_link_libraries(melonDS PRIVATE slirp)
 
 if (WIN32)
     option(PORTABLE "Make a portable build that looks for its configuration in the current directory" ON)

vcpkg.json

@@ -6,7 +6,6 @@
 			"default-features": false,
 			"features": ["bzip2", "crypto", "lz4", "zstd"]
 		},
-		"libslirp",
 		"zstd",
 		{
 			"name": "qtbase",