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Drop the LLVM version patch for 3.15+ #955

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Drop the LLVM version patch for 3.15+ #955

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1508920
Drop the LLVM version patch for 3.15+
zanieb Jan 19, 2026
18280d1
Fix comment
zanieb Jan 20, 2026
306e27f
Propagate the version from the download file
zanieb Jan 20, 2026
b6b9269
Drop redundant export
zanieb Jan 21, 2026
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3 changes: 2 additions & 1 deletion cpython-unix/build-cpython.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -514,7 +514,8 @@ if [ -n "${CPYTHON_OPTIMIZED}" ]; then
fi

if [[ -n "${PYTHON_MEETS_MINIMUM_VERSION_3_15}" ]]; then
patch -p1 -i "${ROOT}/patch-jit-llvm-version-3.15.patch"
# Python 3.15+ supports configuration via `LLVM_VERSION`
# https://github.com/astral-sh/python-build-standalone/issues/881
fi
fi
fi
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9 changes: 9 additions & 0 deletions cpython-unix/build.py
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Expand Up @@ -834,6 +834,15 @@ def build_cpython(
if "static" in parsed_build_options:
env["CPYTHON_STATIC"] = "1"

# Extract LLVM major version for JIT configuration
llvm_full_version = DOWNLOADS[clang_toolchain(host_platform, target_triple)][
"version"
]
if "+" in llvm_full_version:
llvm_full_version = llvm_full_version.split("+")[0]
# Get major version (e.g., "21" from "21.1.4")
env["LLVM_VERSION"] = llvm_full_version.split(".")[0]

add_target_env(env, host_platform, target_triple, build_env, build_options)

build_env.run("build-cpython.sh", environment=env)
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12 changes: 0 additions & 12 deletions cpython-unix/patch-jit-llvm-version-3.15.patch
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