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Scope CC=clang to Linux; use --macos_minimum_os=10.14 on macOS

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copilot-swe-agent[bot]
2026-07-13 14:49:50 +00:00
committed by GitHub
parent 4ba85eb65b
commit 377ee496a2
1 changed files with 12 additions and 15 deletions
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27
.bazelrc
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@@ -10,22 +10,19 @@ build --compilation_mode opt
# that we can build things that do not rely on that
common --override_module=semmle_code=%workspace%/misc/bazel/semmle_code_stub
build --repo_env=CC=clang --repo_env=CXX=clang++
build:linux --repo_env=CC=clang --repo_env=CXX=clang++
# Set a macOS deployment target for both target and exec configurations so
# that the hermetic Swift toolchain used by //unified/swift-syntax-rs (and
# its `swift-syntax` dependency) compiles. Without this, `swiftc` is
# invoked without a deployment target and fails with
# "Swift requires a minimum deployment target of macOS 10.9.0" on recent
# macOS versions. 10.15 matches swift-syntax's declared minimum platform.
# `--macos_minimum_os` covers the target config; the exec/host config
# (used for e.g. Swift macro compilation) needs `MACOSX_DEPLOYMENT_TARGET`
# on the action env, since `--host_macos_minimum_os` doesn't reach the
# standalone Swift toolchain in rules_swift 4.x.
build:macos --macos_minimum_os=10.15
build:macos --host_macos_minimum_os=10.15
build:macos --action_env=MACOSX_DEPLOYMENT_TARGET=10.15
build:macos --host_action_env=MACOSX_DEPLOYMENT_TARGET=10.15
# On macOS, do NOT force `CC=clang`: that steers Bazel to its generic
# `local_config_cc` toolchain, which reports an unversioned target triple
# (`arm64-apple-macosx`). The rules_swift 4.x standalone Swift toolchain
# feeds that triple straight to `swiftc -target`, and swiftc then fails with
# "Swift requires a minimum deployment target of macOS 10.9.0". Letting
# Bazel auto-detect the Xcode CC toolchain on macOS gives it a properly
# versioned triple (derived from `--macos_minimum_os` below). Xcode's
# `clang` is used either way, so `rules_swift`'s "requires clang" check
# still passes.
build:macos --macos_minimum_os=10.14
build:macos --host_macos_minimum_os=10.14
# Disable Android SDK auto-detection (we don't use it, and rules_android has Bazel 9 compatibility issues)
build --repo_env=ANDROID_HOME=