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30 lines
1.1 KiB
Diff
30 lines
1.1 KiB
Diff
# What: provide and link MinGW's ARM64 long-double `powl` compatibility shim.
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# Why: Windows ARM64 uses 64-bit long doubles, but LLVM's Bazel source list
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# omits the upstream `powl -> pow` implementation and its default link flags
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# omit the MinGW extension archive that owns the shim.
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diff --git a/runtimes/mingw/crt_sources.bzl b/runtimes/mingw/crt_sources.bzl
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index aa085df..f45f99d 100644
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--- a/runtimes/mingw/crt_sources.bzl
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+++ b/runtimes/mingw/crt_sources.bzl
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@@ -417,6 +417,7 @@ MINGWEX_TEXTUAL_SRCS = [
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]
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MINGWEX_ARM64_SRCS = [
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+ "math/arm-common/powl.c",
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"math/sincos.c",
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"math/sincosf.c",
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"math/arm-common/sincosl.c",
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diff --git a/toolchain/args/windows/BUILD.bazel b/toolchain/args/windows/BUILD.bazel
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index 8d28a93..f8f6d49 100644
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--- a/toolchain/args/windows/BUILD.bazel
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+++ b/toolchain/args/windows/BUILD.bazel
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@@ -47,6 +47,7 @@ cc_args(
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"-L{mingw_crt_library_search_path}",
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# Clang will respect the user's chosen CRT variant.
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+ "-lmingwex",
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] + select({
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"//constraints/windows/crt:msvcrt": [
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# msvcrt.dll plus compatibility objects provided by mingw-w64.
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