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Enable LTO while building clang #394

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Enable LTO while building clang #394

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577f2e1
Enable LTO while building clang
Oct 24, 2025
150f2b4
add swapfile
h-vetinari Nov 12, 2025
58e598d
MNT: Re-rendered with conda-smithy 3.53.0 and conda-forge-pinning 202…
h-vetinari Nov 12, 2025
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34 changes: 34 additions & 0 deletions .azure-pipelines/azure-pipelines-linux.yml
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3 changes: 3 additions & 0 deletions conda-forge.yml
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Original file line number Diff line number Diff line change
@@ -1,4 +1,7 @@
azure:
free_disk_space: true
settings_linux:
swapfile_size: 15GiB
settings_win:
variables:
CONDA_BLD_PATH: C:\\bld\\
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5 changes: 5 additions & 0 deletions recipe/build.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -37,9 +37,12 @@ else
rm -rf $BUILD_PREFIX/bin/llvm-tblgen
fi

export LTO=auto

if [[ "$target_platform" == osx* ]]; then
export CXXFLAGS="$CXXFLAGS -DTARGET_OS_OSX=1"
CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_LIBCXX=ON"
export LTO=Thin
fi

# disable -fno-plt due to some GCC bug causing linker errors, see
Expand All @@ -66,6 +69,8 @@ cmake \
-DLLVM_ENABLE_ZLIB=FORCE_ON \
-DLLVM_ENABLE_ZSTD=FORCE_ON \
-DLLVM_ENABLE_RTTI=ON \
-DLLVM_ENABLE_LTO=$LTO \
-DLLVM_ENABLE_FATLTO=ON \
-DCMAKE_AR=$AR \
-DPython3_EXECUTABLE=${BUILD_PREFIX}/bin/python \
$CMAKE_ARGS \
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1 change: 1 addition & 0 deletions recipe/meta.yaml
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Expand Up @@ -48,6 +48,7 @@ requirements:
- {{ stdlib('c') }}
- {{ compiler('cxx') }}
- cmake
- lld
- ninja # [win]
- make # [unix]
# "compiling .pyc files" fails without this
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