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[cmake,Apple] Check ld-classic when looking for ld64. #77136

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merged 1 commit into from
Jan 5, 2024
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[cmake,Apple] Check ld-classic when looking for ld64. #77136

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17 changes: 15 additions & 2 deletions llvm/cmake/config-ix.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -639,12 +639,25 @@ if(CMAKE_HOST_APPLE AND APPLE)
if(NOT CMAKE_XCRUN)
find_program(CMAKE_XCRUN NAMES xcrun)
endif()

# First, check if there's ld-classic, which is ld64 in newer SDKs.
if(CMAKE_XCRUN)
execute_process(COMMAND ${CMAKE_XCRUN} -find ld
execute_process(COMMAND ${CMAKE_XCRUN} -find ld-classic
OUTPUT_VARIABLE LD64_EXECUTABLE
OUTPUT_STRIP_TRAILING_WHITESPACE)
else()
find_program(LD64_EXECUTABLE NAMES ld DOC "The ld64 linker")
find_program(LD64_EXECUTABLE NAMES ld-classic DOC "The ld64 linker")
endif()

# Otherwise look for ld directly.
if(NOT LD64_EXECUTABLE)
if(CMAKE_XCRUN)
execute_process(COMMAND ${CMAKE_XCRUN} -find ld
OUTPUT_VARIABLE LD64_EXECUTABLE
OUTPUT_STRIP_TRAILING_WHITESPACE)
else()
find_program(LD64_EXECUTABLE NAMES ld DOC "The ld64 linker")
endif()
endif()
endif()

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