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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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# Do NOT include this module directly into any of your code. It is meant as
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# a library for Check*CompilerFlag.cmake and Check*LinkerFlag.cma modules.
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# It's content may change in any way between releases.
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include_guard(GLOBAL)
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cmake_policy(PUSH)
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cmake_policy(SET CMP0054 NEW) # if() quoted variables not dereferenced
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cmake_policy(SET CMP0057 NEW) # if() supports IN_LIST
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macro(CMAKE_CHECK_FLAG_COMMON_INIT _FUNC _LANG _SRC _PATTERNS)
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if("${_LANG}" STREQUAL "C")
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set(${_SRC} "int main(void) { return 0; }")
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set(${_PATTERNS} FAIL_REGEX "command[ -]line option .* is valid for .* but not for C"
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FAIL_REGEX "-Werror=.* argument .* is not valid for C")
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elseif("${_LANG}" STREQUAL "CXX")
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set(${_SRC} "int main() { return 0; }")
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set(${_PATTERNS} FAIL_REGEX "command[ -]line option .* is valid for .* but not for C\\+\\+"
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FAIL_REGEX "-Werror=.* argument .* is not valid for C\\+\\+")
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elseif("${_LANG}" STREQUAL "CUDA")
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set(${_SRC} "__host__ int main() { return 0; }")
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set(${_PATTERNS} FAIL_REGEX "command[ -]line option .* is valid for .* but not for C\\+\\+" # Host GNU
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FAIL_REGEX "argument unused during compilation: .*") # Clang
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elseif("${_LANG}" STREQUAL "Fortran")
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set(${_SRC} " program test\n stop\n end program")
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set(${_PATTERNS} FAIL_REGEX "command[ -]line option .* is valid for .* but not for Fortran")
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elseif("${_LANG}" STREQUAL "HIP")
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set(${_SRC} "__host__ int main() { return 0; }")
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set(${_PATTERNS} FAIL_REGEX "argument unused during compilation: .*") # Clang
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elseif("${_LANG}" STREQUAL "OBJC")
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set(${_SRC} [=[
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#ifndef __OBJC__
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# error "Not an Objective-C compiler"
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#endif
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int main(void) { return 0; }]=])
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set(${_PATTERNS} FAIL_REGEX "command[ -]line option .* is valid for .* but not for Objective-C" # GNU
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FAIL_REGEX "argument unused during compilation: .*") # Clang
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elseif("${_LANG}" STREQUAL "OBJCXX")
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set(${_SRC} [=[
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#ifndef __OBJC__
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# error "Not an Objective-C++ compiler"
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#endif
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int main(void) { return 0; }]=])
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set(${_PATTERNS} FAIL_REGEX "command[ -]line option .* is valid for .* but not for Objective-C\\+\\+" # GNU
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FAIL_REGEX "argument unused during compilation: .*") # Clang
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elseif("${_LANG}" STREQUAL "ISPC")
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set(${_SRC} "float func(uniform int32, float a) { return a / 2.25; }")
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else()
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message (SEND_ERROR "${_FUNC}: ${_LANG}: unknown language.")
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return()
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endif()
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get_property (_supported_languages GLOBAL PROPERTY ENABLED_LANGUAGES)
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if (NOT "${_LANG}" IN_LIST _supported_languages)
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message (SEND_ERROR "${_FUNC}: ${_LANG}: needs to be enabled before use.")
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return()
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endif()
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# Normalize locale during test compilation.
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set(_CFCC_locale_vars LC_ALL LC_MESSAGES LANG)
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foreach(v IN LISTS _CFCC_locale_vars)
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set(_CMAKE_CHECK_FLAG_COMMON_CONFIG_locale_vars_saved_${v} "$ENV{${v}}")
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set(ENV{${v}} C)
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endforeach()
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endmacro()
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macro(CMAKE_CHECK_FLAG_COMMON_FINISH)
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foreach(v IN LISTS _CFCC_locale_vars)
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set(ENV{${v}} ${_CMAKE_CHECK_FLAG_COMMON_CONFIG_locale_vars_saved_${v}})
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endforeach()
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endmacro()
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cmake_policy(POP)
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