[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

This will fix #2402
This PR should also be closed since this PR effectively supersedes it: #2433

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 ad14c0e

(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

All native library builds modified in this PR shall attempt to be built by CI.

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 · 2026-04-19T06:57:49Z

-        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).

(cherry picked from commit ecc5677)

…e, but dependencies first by default is most consistent) (cherry picked from commit ad2d940)

…'s native build process

apt-get seems to be recommended over apt for scripting purposes. apt is designed for humans and does not guarantee backwards compatibility. See https://manpages.debian.org/stretch/apt/apt.8.en.html

github-actions · 2026-04-30T16:09:31Z

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.

Exanite

Self code review completed for the new changes I added.
Should be ready for review and merging now.

Exanite · 2026-04-29T17:40:23Z


-if [ ! -e ../../../eng/submodules/openal-soft/CMakeLists.txt ]; then
-    git submodule update --init --recursive --depth 1 ../../../eng/submodules/openal-soft
+# Dependencies


I added marker comments to each script to make the code easier to skim and to enforce a light structure to the scripts.

I also made each script follow the "dependencies, submodule, build" section order.
In case we have exceptions to this rule in the future, we should explain with a comment.

Note I plan to further rework these in a separate PR.

Exanite · 2026-04-29T17:42:45Z

-            cmake python3 libpipewire-0.3-dev:armhf qt6-base-dev:armhf pulseaudio:armhf \
-            gcc-arm-linux-gnueabihf g++-arm-linux-gnueabihf
-    else
+    if [[ -z ${SILKDOTNET_DockerBuild+x} ]]; then


I reordered this so that it matches the actual execution order, which is to enter Docker, then install packages.

Exanite · 2026-04-29T17:43:49Z

        exit
+    else
+        dpkg --add-architecture armhf
+        apt-get update


Very subtle detail, but apt-get is recommended for scripting purposes. apt is for human usage.

Reference: https://manpages.debian.org/stretch/apt/apt.8.en.html

Exanite · 2026-04-29T17:44:54Z

-    sudo apt install -y libasound2-dev:amd64 libpulse-dev:amd64 libsoundio-dev:amd64 libsndfile1-dev:amd64 \
-        libmysofa-dev:amd64 qtbase5-dev:amd64 libdbus-1-dev:amd64 libjack-dev:amd64 portaudio19-dev:amd64 git \
-        cmake build-essential python3 libpipewire-0.3-dev:amd64 qt6-base-dev:amd64 pulseaudio:amd64
+    sudo apt-get update


I'm debating whether to add a Debian docker container step here as well.
Currently x64 builds on Ubuntu while ARM builds on Debian.

I'll experiment with this in a separate PR.

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

Exanite added 2 commits April 19, 2026 02:22

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

Exanite and others added 12 commits April 29, 2026 11:13

Add marker comments to build scripts for skimmability

11922dd

(cherry picked from commit ecc5677)

Reorder build steps so dependencies are always first (can special cas…

ff5cd9a

…e, but dependencies first by default is most consistent) (cherry picked from commit ad2d940)

Organize Linux package installs

7f9516e

Flip if statement so that it matches execution order

c62266e

Change SDL Linux native build to use Docker so that it matches OpenAL…

c6cb643

…'s native build process

Fix incorrect path

30da54c

Install python before downloading zig

26256ea

Remove now unnecessary sudo

a8d3a02

Use apt-get over apt

2e6fde5

apt-get seems to be recommended over apt for scripting purposes. apt is designed for humans and does not guarantee backwards compatibility. See https://manpages.debian.org/stretch/apt/apt.8.en.html

Update native binaries for 2e6fde5

128a9b8

Update native binaries for 128a9b8

d1b6965

Update native binaries for d1b6965

bf101dc

Exanite mentioned this pull request Apr 30, 2026

[3.0] Fix OpenAL loading on Windows and make the examples run out-of-the-box #2573

Draft

Exanite commented Apr 30, 2026

View reviewed changes

Exanite marked this pull request as ready for review April 30, 2026 17:17

Empty commit since the native builds break the checks

ad14c0e

Exanite mentioned this pull request May 1, 2026

[3.0] Apply MaybeBool transformation to fields/properties #2574

Draft

4 tasks

curin approved these changes May 1, 2026

View reviewed changes

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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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