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if(NOT DEFINED _CMAKE_PROCESSING_LANGUAGE OR _CMAKE_PROCESSING_LANGUAGE STREQUAL "")
message(FATAL_ERROR "Internal error: _CMAKE_PROCESSING_LANGUAGE is not set")
endif()
# Ubuntu:
# * /usr/bin/llvm-ar-9
# * /usr/bin/llvm-ranlib-9
string(REGEX MATCH "^([0-9]+)" __version_x
"${CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER_VERSION}")
# Debian:
# * /usr/bin/llvm-ar-4.0
# * /usr/bin/llvm-ranlib-4.0
string(REGEX MATCH "^([0-9]+\\.[0-9]+)" __version_x_y
"${CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER_VERSION}")
# Try to find tools in the same directory as Clang itself
get_filename_component(__clang_hint_1 "${CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER}" REALPATH)
get_filename_component(__clang_hint_1 "${__clang_hint_1}" DIRECTORY)
get_filename_component(__clang_hint_2 "${CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER}" DIRECTORY)
set(__clang_hints ${__clang_hint_1} ${__clang_hint_2})
# http://manpages.ubuntu.com/manpages/precise/en/man1/llvm-ar.1.html
find_program(CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER_AR NAMES
"${_CMAKE_TOOLCHAIN_PREFIX}llvm-ar-${__version_x_y}"
"${_CMAKE_TOOLCHAIN_PREFIX}llvm-ar-${__version_x}"
"${_CMAKE_TOOLCHAIN_PREFIX}llvm-ar"
HINTS ${__clang_hints}
NO_CMAKE_PATH NO_CMAKE_ENVIRONMENT_PATH
DOC "LLVM archiver"
)
mark_as_advanced(CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER_AR)
# http://manpages.ubuntu.com/manpages/precise/en/man1/llvm-ranlib.1.html
find_program(CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER_RANLIB NAMES
"${_CMAKE_TOOLCHAIN_PREFIX}llvm-ranlib-${__version_x_y}"
"${_CMAKE_TOOLCHAIN_PREFIX}llvm-ranlib-${__version_x}"
"${_CMAKE_TOOLCHAIN_PREFIX}llvm-ranlib"
HINTS ${__clang_hints}
NO_CMAKE_PATH NO_CMAKE_ENVIRONMENT_PATH
DOC "Generate index for LLVM archive"
)
mark_as_advanced(CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER_RANLIB)
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