[3.0] Update SDL and ClangSharp by Exanite · Pull Request #2570 · dotnet/Silk.NET

Exanite · 2026-04-17T03:24:45Z

Summary of the PR

This PR updates ClangSharp and SDL. This was originally part of #2567, but proved to be a more involved change than anticipated due to SDL build problems.

Related issues, Discord discussions, or proposals

Related PR: #2567

Further Comments

Tasks

Native builds

(Currently disabling this command by adding a space; the builds are already committed so there's no reason to run them again)
/ build-native SDL OpenAL-Soft

github-actions · 2026-04-17T03:31:00Z

File	Coverage
All files	`16%`	✅

Minimum allowed coverage is 0%

Generated by 🐒 cobertura-action against 77ebc55

(cherry picked from commit 7938a0c)

(cherry picked from commit e4f8325)

(cherry picked from commit b0db2ba)

(cherry picked from commit 156aa5c)

armv7s seems to be legacy. (cherry picked from commit 25b0e27)

CMAKE_LIBRARY_ARCHITECTURE fixes the issue where system libraries weren't being found. Eg: "SDL_X11 (Wanted: ON): ON" was OFF without this setting. Eg: "Found OpenGL: /usr/lib/x86_64-linux-gnu/libOpenGL.so " was a not found error without this setting. I removed the pkg-config settings since they didn't seem to do anything and I couldn't figure out if they were correct in the first place. I'm assuming CMake figures these out automatically (it should automatically find the host version of the pkg-config executable and I'm *assuming* (please verify) it uses the CMAKE_LIBRARY_ARCHITECTURE variable to figure out which set of .pc files to use).

x64/amd64 is handled the same way for consistency.

…ubsequent write

…x package resolution issues

github-actions · 2026-04-19T01:53:58Z

Some of the native library builds modified in this PR were not referenced in the PR description. Please ensure that the PR description contains /build-native OpenAL-Soft SDL. These libraries won't be rebuilt without this being specified. If you believe this is in error, then please write a comment explaining why and ignore this suggestion. This comment will be automatically updated if rectified.

This is because it otherwise gets confusing in the "run project" dropdown.

Exanite

Self code review complete. My review comments mainly explain why the changes were made. I didn't make an effort to comment how the code works this time though. This is because I want to rework this setup eventually.

Exanite · 2026-04-19T06:40:32Z

    set(PKG_CONFIG_EXECUTABLE "/usr/bin/${ZIG_ARCH}-${ZIG_OS}-${LINUX_ABI}-pkg-config")
    set(ENV{PKG_CONFIG_LIBDIR} "/usr/lib/${ZIG_ARCH}-${ZIG_OS}-${LINUX_ABI}/pkgconfig")
    set(ENV{PKG_CONFIG_PATH} "/usr/lib/pkgconfig:/usr/share/pkgconfig")
-    set(CMAKE_FIND_ROOT_PATH "/usr/${ZIG_ARCH}-${ZIG_OS}-${LINUX_ABI}")


This folder doesn't exist on Ubuntu and the include, lib, and bin folders instead have the following format:

/usr/bin/{target-triple} /usr/include/{target-triple} /usr/lib/{target-triple}

Setting CMAKE_LIBRARY_ARCHITECTURE lets CMake find these automatically.

Exanite · 2026-04-19T06:41:31Z

I prefixed the OpenAL example project name and folder name since it was confusing in the "run project" dropdown of Rider (and maybe other IDEs).

Exanite · 2026-04-19T06:45:51Z

    git submodule update --init --recursive --depth 1 ..\..\..\eng\submodules\openal-soft
 )

-call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" arm64


arm64 seems to work when using MSVC, but breaks for Clang. Using amd64_arm64 specifies the host_target setting properly.

Also verified that the output binary is arm64 as intended.

Exanite · 2026-04-19T06:52:14Z

 rm -rf build
 mkdir build
 cd build
-cmake ../../../../eng/submodules/sdl -DCMAKE_SYSTEM_NAME=iOS -DCMAKE_OSX_SYSROOT=iphoneos "-DCMAKE_OSX_ARCHITECTURES=arm64;armv7s" -DCMAKE_OSX_DEPLOYMENT_TARGET=9.0 -DCMAKE_BUILD_TYPE=Release -DSDL_STATIC=ON


armv7s was breaking the build since Xcode doesn't support it anymore. Looking it up online also shows that armv7s is old and unsupported.

Exanite · 2026-04-19T06:53:01Z

 mkdir build
 cd build
-cmake ../../../../eng/submodules/sdl -DCMAKE_SYSTEM_NAME=iOS -DCMAKE_OSX_SYSROOT=iphoneos "-DCMAKE_OSX_ARCHITECTURES=arm64;armv7s" -DCMAKE_OSX_DEPLOYMENT_TARGET=9.0 -DCMAKE_BUILD_TYPE=Release -DSDL_STATIC=ON
+cmake ../../../../eng/submodules/sdl -DCMAKE_SYSTEM_NAME=iOS -DCMAKE_OSX_SYSROOT=iphoneos "-DCMAKE_OSX_ARCHITECTURES=arm64" -DCMAKE_OSX_DEPLOYMENT_TARGET=9.0 -DCMAKE_BUILD_TYPE=Release -DSDL_STATIC=ON -DSDL_TEST_LIBRARY=OFF


DSDL_TEST_LIBRARY was defaulting to ON and led to some build issues on Linux x64. I've updated all the build scripts to consistently disable it.

Exanite · 2026-04-19T06:54:05Z

-        libxkbcommon-dev libdrm-dev libgbm-dev libgl1-mesa-dev libgles2-mesa-dev \
-        libegl1-mesa-dev libdbus-1-dev libibus-1.0-dev libudev-dev fcitx-libs-dev \
-        libpipewire-0.3-dev libwayland-dev libdecor-0-dev liburing-dev
+        pkg-config cmake ninja-build gnome-desktop-testing \


These also specify :amd64 purely for consistency.

Exanite · 2026-04-19T06:55:42Z

+Components: main restricted universe multiverse
+Architectures: armhf
+Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
+EOF


Don't believe there is an official way to modify the repo lists so I just use sed here to modify the existing sources file and tee to add a new one for the ports repos.

lsb_release avoids the need to hardcode the ubuntu release codename (currently noble).

Exanite · 2026-04-19T06:57:49Z

-        libegl1-mesa-dev libdbus-1-dev libibus-1.0-dev libudev-dev fcitx-libs-dev \
-        libpipewire-0.3-dev libwayland-dev libdecor-0-dev liburing-dev
+        pkg-config cmake ninja-build gnome-desktop-testing \
+        libglib2.0-dev-bin \


Executables must use the host architecture, so they are unsuffixed.
Compile dependencies must use the target architecture, so they are suffixed (armhf in this case).

Exanite · 2026-04-19T07:00:15Z

 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "OpenAL", "OpenAL", "{662A1AEC-91F2-48FA-AA29-6F27038D30F2}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tutorial001.HelloSound", "examples\CSharp\OpenAL\Tutorial001.HelloSound\Tutorial001.HelloSound.csproj", "{946C912C-5BBB-446A-A566-0D1696D19F59}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "OpenAL.Tutorial001.HelloSound", "examples\CSharp\OpenAL\OpenAL.Tutorial001.HelloSound\OpenAL.Tutorial001.HelloSound.csproj", "{946C912C-5BBB-446A-A566-0D1696D19F59}"


I'll probably convert this .sln file to an .slnx file as my next PR and ensure that Nuke works with the new format (should work after updating Nuke).

github-project-automation bot added this to Silk.NET Development Tracker Apr 17, 2026

github-project-automation bot moved this to Todo in Silk.NET Development Tracker Apr 17, 2026

Exanite mentioned this pull request Apr 17, 2026

[3.0] Improve generator performance #2567

Merged

7 tasks

Exanite added 6 commits April 17, 2026 23:45

Update SDL submodule

d7b0a5e

Update ClangSharp.PInvokeGenerator

7a897bc

(cherry picked from commit 7938a0c)

Add comment on where the SDL Linux dependency list comes from

eb3c578

(cherry picked from commit e4f8325)

Update dependency list

4a925ba

(cherry picked from commit b0db2ba)

Disable building SDL tests

4688456

(cherry picked from commit 156aa5c)

Don't build for ios armv7s

dc21675

armv7s seems to be legacy. (cherry picked from commit 25b0e27)

Exanite force-pushed the feature/update-sdl branch from 8622118 to dc21675 Compare April 18, 2026 03:48

Exanite and others added 16 commits April 18, 2026 01:40

Install the architecture specific version of each compile dependency

cec6067

x64/amd64 is handled the same way for consistency.

Fix apt-get commands

a2d1440

Fix incorrect architecture code (should be armhf instead of arm)

94b28ed

Enable ports repository

32edf45

Forgot a sudo

1078201

Use tee instead of cat due to sudo only applying to cat and not the s…

453d8a0

…ubsequent write

Don't hardcode the release codename

9d29d82

Oops

5dbbfb2

Update existing ubuntu.sources file to specify the architecture to fi…

1f87a94

…x package resolution issues

Change the ubuntu.source update command to be idempotent

59c8d51

Add the pkg config lines back

79669d7

Fix missing sudo again

03adbed

Use amd64_arm64 when calling vcvarsall instead of arm64

bf3883f

Update native binaries for bf3883f

ada9687

Empty commit to trigger experimental packages

3053e41

dotnet-bot added 2 commits April 19, 2026 02:04

Update native binaries for 3053e41

d5c877d

Update native binaries for d5c877d

1c16a52

dotnet-bot and others added 5 commits April 19, 2026 02:06

Update native binaries for 1c16a52

5acd54c

Update native binaries for 5acd54c

7b212c3

Add license header to OpenAL example

d2d864a

Add basic SDL example

c2a9772

Prefix the project names with the library name

8e3cfd7

This is because it otherwise gets confusing in the "run project" dropdown.

Exanite commented Apr 19, 2026

View reviewed changes

Exanite marked this pull request as ready for review April 19, 2026 07:02

Exanite requested a review from a team as a code owner April 19, 2026 07:02

Exanite marked this pull request as draft April 19, 2026 07:05

Exanite marked this pull request as ready for review April 19, 2026 07:09

Exanite changed the title ~~[3.0] Update SDL~~ [3.0] Update SDL and ClangSharp Apr 19, 2026

Exanite added 2 commits April 19, 2026 03:15

Decide to not prefix the folders since the rest of the codebase doesn't

6d54862

Update SDL bindings

77ebc55

Exanite marked this pull request as draft April 20, 2026 19:18

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Summary of the PR

Related issues, Discord discussions, or proposals

Further Comments

Tasks

Native builds

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Exanite commented Apr 17, 2026 •

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