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CMake: support LLVM as a single shared library #2291

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Aug 23, 2023
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CMake: support LLVM as a single shared library #2291

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12 changes: 11 additions & 1 deletion CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -157,7 +157,17 @@ if (WITH_LLVM)
add_definitions("-DHAVE_TARGET_X86=1")
endif()

llvm_map_components_to_libnames(llvm_libs ${LPYTHON_LLVM_COMPONENTS})
if (TARGET LLVMCore)
# If `LLVMCore` target is present, then LLVM is distributed as separate
# libraries and llvm_map_components_to_libnames() should work:
llvm_map_components_to_libnames(llvm_libs ${LPYTHON_LLVM_COMPONENTS})
else()
# Workaround for https://github.com/llvm/llvm-project/issues/34593
# If LLVM is distributed as a single library (the LLVMCore target is
# missing), we set `llvm_libs` to "LLVM" which links against the single
# `libLLVM.so` shared library.
set(llvm_libs "LLVM")
endif()
unset(LPYTHON_LLVM_COMPONENTS)

add_library(p::llvm INTERFACE IMPORTED)
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