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[CMake] Fix rpath construction for out-of-tree builds
This patch was produced in conjunction with Michał Górny. It should resolve the issues that were trying to be solved by D25304. This moves rpath handling into `llvm_add_library` and `add_llvm_executable` so that it is available to all projects using AddLLVM whether built in-tree or out-of-tree. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@285714 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -677,20 +677,6 @@ set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/bin )
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set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
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set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
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set(CMAKE_BUILD_WITH_INSTALL_RPATH ON)
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if (APPLE)
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set(CMAKE_INSTALL_NAME_DIR "@rpath")
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set(CMAKE_INSTALL_RPATH "@executable_path/../lib")
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else(UNIX)
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if(NOT DEFINED CMAKE_INSTALL_RPATH)
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set(CMAKE_INSTALL_RPATH "\$ORIGIN/../lib${LLVM_LIBDIR_SUFFIX}")
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if(${CMAKE_SYSTEM_NAME} MATCHES "(FreeBSD|DragonFly)")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-z,origin")
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set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,-z,origin")
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endif()
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endif(NOT DEFINED CMAKE_INSTALL_RPATH)
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endif()
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if(APPLE AND DARWIN_LTO_LIBRARY)
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set(CMAKE_EXE_LINKER_FLAGS
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"${CMAKE_EXE_LINKER_FLAGS} -Wl,-lto_library -Wl,${DARWIN_LTO_LIBRARY}")
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@ -415,6 +415,9 @@ function(llvm_add_library name)
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elseif(ARG_SHARED)
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add_windows_version_resource_file(ALL_FILES ${ALL_FILES})
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add_library(${name} SHARED ${ALL_FILES})
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llvm_setup_rpath(${name})
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else()
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add_library(${name} STATIC ${ALL_FILES})
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endif()
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@ -659,6 +662,8 @@ macro(add_llvm_executable name)
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add_executable(${name} ${ALL_FILES})
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endif()
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llvm_setup_rpath(${name})
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if(DEFINED windows_resource_file)
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set_windows_version_resource_properties(${name} ${windows_resource_file})
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endif()
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@ -1317,3 +1322,35 @@ function(llvm_externalize_debuginfo name)
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message(FATAL_ERROR "LLVM_EXTERNALIZE_DEBUGINFO isn't implemented for non-darwin platforms!")
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endif()
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endfunction()
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function(llvm_setup_rpath name)
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if(LLVM_INSTALL_PREFIX AND NOT (LLVM_INSTALL_PREFIX STREQUAL CMAKE_INSTALL_PREFIX))
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set(extra_libdir ${LLVM_LIBRARY_DIR})
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elseif(LLVM_BUILD_LIBRARY_DIR)
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set(extra_libdir ${LLVM_LIBRARY_DIR})
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endif()
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if (APPLE)
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set(_install_name_dir INSTALL_NAME_DIR "@rpath")
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set(_install_rpath "@loader_path/../lib" ${extra_libdir})
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elseif(UNIX)
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if(NOT DEFINED CMAKE_INSTALL_RPATH)
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set(_install_rpath "\$ORIGIN/../lib${LLVM_LIBDIR_SUFFIX}" ${extra_libdir})
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if(${CMAKE_SYSTEM_NAME} MATCHES "(FreeBSD|DragonFly)")
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set_property(TARGET ${name} APPEND_STRING PROPERTY
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LINK_FLAGS " -Wl,-z,origin ")
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elseif(${CMAKE_SYSTEM_NAME} STREQUAL "Linux" AND NOT LLVM_LINKER_IS_GOLD)
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# $ORIGIN is not interpreted at link time by ld.bfd
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set_property(TARGET ${name} APPEND_STRING PROPERTY
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LINK_FLAGS " -Wl,-rpath-link,${LLVM_LIBRARY_OUTPUT_INTDIR} ")
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endif()
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endif()
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else()
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return()
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endif()
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set_target_properties(${name} PROPERTIES
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BUILD_WITH_INSTALL_RPATH On
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INSTALL_RPATH "${_install_rpath}"
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${_install_name_dir})
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endfunction()
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