1 files changed, 2 insertions, 121 deletions
diff --git a/Modules/CheckSourceCompiles.cmake b/Modules/CheckSourceCompiles.cmake
index 4ed9a5c..ad74c3c 100644
--- a/Modules/CheckSourceCompiles.cmake
+++ b/Modules/CheckSourceCompiles.cmake
@@ -75,127 +75,8 @@ Check if given source compiles and links into an executable.
 
 
 include_guard(GLOBAL)
-
-cmake_policy(PUSH)
-cmake_policy(SET CMP0054 NEW) # if() quoted variables not dereferenced
-cmake_policy(SET CMP0057 NEW) # if() supports IN_LIST
+include(Internal/CheckSourceCompiles)
 
 function(CHECK_SOURCE_COMPILES _lang _source _var)
-  if(NOT DEFINED "${_var}")
-
-    if(_lang STREQUAL C)
-      set(_lang_textual "C")
-      set(_lang_ext "c")
-    elseif(_lang STREQUAL CXX)
-      set(_lang_textual "C++")
-      set(_lang_ext "cxx")
-    elseif(_lang STREQUAL CUDA)
-      set(_lang_textual "CUDA")
-      set(_lang_ext "cu")
-    elseif(_lang STREQUAL Fortran)
-      set(_lang_textual "Fortran")
-      set(_lang_ext "F90")
-    elseif(_lang STREQUAL ISPC)
-      set(_lang_textual "ISPC")
-      set(_lang_ext "ispc")
-    elseif(_lang STREQUAL OBJC)
-      set(_lang_textual "Objective-C")
-      set(_lang_ext "m")
-    elseif(_lang STREQUAL OBJCXX)
-      set(_lang_textual "Objective-C++")
-      set(_lang_ext "mm")
-    else()
-      message (SEND_ERROR "check_source_compiles: ${_lang}: unknown language.")
-      return()
-    endif()
-
-    get_property (_supported_languages GLOBAL PROPERTY ENABLED_LANGUAGES)
-    if (NOT _lang IN_LIST _supported_languages)
-      message (SEND_ERROR "check_source_compiles: ${_lang}: needs to be enabled before use.")
-      return()
-    endif()
-
-    set(_FAIL_REGEX)
-    set(_SRC_EXT)
-    set(_key)
-    foreach(arg ${ARGN})
-      if("${arg}" MATCHES "^(FAIL_REGEX|SRC_EXT)$")
-        set(_key "${arg}")
-      elseif(_key STREQUAL "FAIL_REGEX")
-        list(APPEND _FAIL_REGEX "${arg}")
-      elseif(_key STREQUAL "SRC_EXT")
-        set(_SRC_EXT "${arg}")
-        set(_key "")
-      else()
-        message(FATAL_ERROR "Unknown argument:\n  ${arg}\n")
-      endif()
-    endforeach()
-
-    if(NOT _SRC_EXT)
-      set(_SRC_EXT ${_lang_ext})
-    endif()
-
-    if(CMAKE_REQUIRED_LINK_OPTIONS)
-      set(CHECK_${LANG}_SOURCE_COMPILES_ADD_LINK_OPTIONS
-        LINK_OPTIONS ${CMAKE_REQUIRED_LINK_OPTIONS})
-    else()
-      set(CHECK_${LANG}_SOURCE_COMPILES_ADD_LINK_OPTIONS)
-    endif()
-    if(CMAKE_REQUIRED_LIBRARIES)
-      set(CHECK_${LANG}_SOURCE_COMPILES_ADD_LIBRARIES
-        LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
-    else()
-      set(CHECK_${LANG}_SOURCE_COMPILES_ADD_LIBRARIES)
-    endif()
-    if(CMAKE_REQUIRED_INCLUDES)
-      set(CHECK_${LANG}_SOURCE_COMPILES_ADD_INCLUDES
-        "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
-    else()
-      set(CHECK_${LANG}_SOURCE_COMPILES_ADD_INCLUDES)
-    endif()
-    file(WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.${_SRC_EXT}"
-      "${_source}\n")
-
-    if(NOT CMAKE_REQUIRED_QUIET)
-      message(CHECK_START "Performing Test ${_var}")
-    endif()
-    try_compile(${_var}
-      ${CMAKE_BINARY_DIR}
-      ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.${_SRC_EXT}
-      COMPILE_DEFINITIONS -D${_var} ${CMAKE_REQUIRED_DEFINITIONS}
-      ${CHECK_${LANG}_SOURCE_COMPILES_ADD_LINK_OPTIONS}
-      ${CHECK_${LANG}_SOURCE_COMPILES_ADD_LIBRARIES}
-      CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${CMAKE_REQUIRED_FLAGS}
-      "${CHECK_${LANG}_SOURCE_COMPILES_ADD_INCLUDES}"
-      OUTPUT_VARIABLE OUTPUT)
-
-    foreach(_regex ${_FAIL_REGEX})
-      if("${OUTPUT}" MATCHES "${_regex}")
-        set(${_var} 0)
-      endif()
-    endforeach()
-
-    if(${_var})
-      set(${_var} 1 CACHE INTERNAL "Test ${_var}")
-      if(NOT CMAKE_REQUIRED_QUIET)
-        message(CHECK_PASS "Success")
-      endif()
-      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
-        "Performing ${_lang_textual} SOURCE FILE Test ${_var} succeeded with the following output:\n"
-        "${OUTPUT}\n"
-        "Source file was:\n${_source}\n")
-    else()
-      if(NOT CMAKE_REQUIRED_QUIET)
-        message(CHECK_FAIL "Failed")
-      endif()
-      set(${_var} "" CACHE INTERNAL "Test ${_var}")
-      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
-        "Performing ${_lang_textual} SOURCE FILE Test ${_var} failed with the following output:\n"
-        "${OUTPUT}\n"
-        "Source file was:\n${_source}\n")
-    endif()
-  endif()
-
+  cmake_check_source_compiles(${_lang} "${_source}" ${_var} ${ARGN})
 endfunction()
-
-cmake_policy(POP)