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[libc++abi] Improve error message when libunwind is missing from LLVM_ENABLE_RUNTIMES #77991

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Merged
merged 1 commit into from
Jan 15, 2024
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[libc++abi] Improve error message when libunwind is missing from LLVM_ENABLE_RUNTIMES #77991

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3 changes: 3 additions & 0 deletions libcxxabi/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,9 @@ option(LIBCXXABI_ENABLE_ASSERTIONS "Enable assertions independent of build mode.
option(LIBCXXABI_ENABLE_PEDANTIC "Compile with pedantic enabled." OFF)
option(LIBCXXABI_ENABLE_WERROR "Fail and stop if a warning is triggered." OFF)
option(LIBCXXABI_USE_LLVM_UNWINDER "Build and use the LLVM unwinder." ON)
if (LIBCXXABI_USE_LLVM_UNWINDER AND NOT "libunwind" IN_LIST LLVM_ENABLE_RUNTIMES)
message(FATAL_ERROR "LIBCXXABI_USE_LLVM_UNWINDER is set to ON, but libuwnind is not specified in LLVM_ENABLE_RUNTIMES.")
endif()
option(LIBCXXABI_ENABLE_STATIC_UNWINDER "Statically link the LLVM unwinder." OFF)
option(LIBCXXABI_USE_COMPILER_RT "Use compiler-rt instead of libgcc" OFF)
option(LIBCXXABI_ENABLE_THREADS "Build with threads enabled" ON)
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