Skip to content

Build glslc without a precompiled header so the arm64 Vulkan leg survives runner image updates #213

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
danielhanchen merged 1 commit into from
Sep 10, 2026
Merged

Build glslc without a precompiled header so the arm64 Vulkan leg survives runner image updates #213

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 7 additions & 0 deletions .github/workflows/unsloth-prebuilt-vulkan.yml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -166,11 +166,18 @@ jobs:
echo "59c0c478f2f40a076e610587d099e39ed059cb7319fe464f8ba1bd07c6bf02c5 $archive" | sha256sum -c -
mkdir -p "$source"
tar -xzf "$archive" -C "$source"
# ENABLE_PCH=OFF: glslang builds a clang precompiled header, and ccache
# hands the cached .pch back on the next run. Clang validates a PCH by
# the mtime of every system header it saw, so the first run after the
# runner image reinstalls linux-libc-dev fails with "has been modified
# since the precompiled header was built" (run 34459747884). Without the
# PCH every object is an ordinary ccache hit and the build is unchanged.
cmake -S "$source" -B "$source/build" -G Ninja \
-DCMAKE_BUILD_TYPE=Release \
-DSHADERC_SKIP_TESTS=ON \
-DSHADERC_SKIP_EXAMPLES=ON \
-DSHADERC_SKIP_COPYRIGHT_CHECK=ON \
-DENABLE_PCH=OFF \
-DCMAKE_C_COMPILER_LAUNCHER=ccache \
-DCMAKE_CXX_COMPILER_LAUNCHER=ccache
cmake --build "$source/build" --target glslc_exe -j "$(nproc)"
Expand Down
Loading