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Toolchain: Hardcode the results of LLVM runtime library detection

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This keeps us from accidentally building toolchains that don't make it
through a clean build if we build them using a populated sysroot, as it
would otherwise detect libpthread and friends and try to pull them in
while LibC is not yet built.
This commit is contained in:
Tim Schumacher 2022-10-01 00:27:16 +02:00 committed by Linus Groh
parent 47c428dbe3
commit eb6c911b3a
1 changed files with 12 additions and 0 deletions
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12
Toolchain/CMake/LLVMRuntimesConfig.cmake
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@ -60,3 +60,15 @@ set(LIBCXX_ENABLE_STATIC_ABI_LIBRARY ON CACHE BOOL "")
set(LIBCXX_INCLUDE_BENCHMARKS OFF CACHE BOOL "")
set(LIBCXXABI_USE_COMPILER_RT ON CACHE BOOL "")
set(LIBUNWIND_USE_COMPILER_RT ON CACHE BOOL "")
# Hardcode autodetection results for libm, libdl, and libpthread.
# This keeps us from accidentially detecting those libraries as being present
# if we build the toolchain with a populated sysroot (which features the
# compability linker scripts).
# TODO: Figure out if we can always build against the Stubs directory instead.
set(LIBCXXABI_HAS_DL_LIB OFF CACHE BOOL "")
set(LIBCXXABI_HAS_PTHREAD_LIB OFF CACHE BOOL "")
set(LIBCXX_HAS_M_LIB OFF CACHE BOOL "")
set(LIBCXX_HAS_PTHREAD_LIB OFF CACHE BOOL "")
set(LIBUNWIND_HAS_DL_LIB OFF CACHE BOOL "")
set(LIBUNWIND_HAS_PTHREAD_LIB OFF CACHE BOOL "")