1 files changed, 3 insertions, 73 deletions
diff --git a/Modules/CheckCompilerFlag.cmake b/Modules/CheckCompilerFlag.cmake
index d7789df..77c07b9 100644
--- a/Modules/CheckCompilerFlag.cmake
+++ b/Modules/CheckCompilerFlag.cmake
@@ -34,78 +34,8 @@ effect or even a specific one is beyond the scope of this module.
 #]=======================================================================]
 
 include_guard(GLOBAL)
-include(CheckSourceCompiles)
-include(CMakeCheckCompilerFlagCommonPatterns)
-
-cmake_policy(PUSH)
-cmake_policy(SET CMP0054 NEW) # if() quoted variables not dereferenced
-cmake_policy(SET CMP0057 NEW) # if() supports IN_LIST
+include(Internal/CheckCompilerFlag)
 
 function(CHECK_COMPILER_FLAG _lang _flag _var)
-
-  if(_lang STREQUAL C)
-    set(_lang_src "int main(void) { return 0; }")
-    set(_lang_fail_regex FAIL_REGEX "command[ -]line option .* is valid for .* but not for C")
-  elseif(_lang STREQUAL CXX)
-    set(_lang_src "int main() { return 0; }")
-    set(_lang_fail_regex FAIL_REGEX "command[ -]line option .* is valid for .* but not for C\\+\\+")
-    elseif(_lang STREQUAL CUDA)
-    set(_lang_src "__host__ int main() { return 0; }")
-    set(_lang_fail_regex FAIL_REGEX "command[ -]line option .* is valid for .* but not for C\\+\\+" # Host GNU
-                         FAIL_REGEX "argument unused during compilation: .*") # Clang
-  elseif(_lang STREQUAL Fortran)
-    set(_lang_src "       program test\n       stop\n       end program")
-    set(_lang_fail_regex FAIL_REGEX "command[ -]line option .* is valid for .* but not for Fortran")
-  elseif(_lang STREQUAL OBJC)
-    set(_lang_src [=[
-#ifndef __OBJC__
-#  error "Not an Objective-C compiler"
-#endif
-int main(void) { return 0; }]=])
-    set(_lang_fail_regex FAIL_REGEX "command[ -]line option .* is valid for .* but not for Objective-C" # GNU
-                         FAIL_REGEX "argument unused during compilation: .*") # Clang
-  elseif(_lang STREQUAL OBJCXX)
-    set(_lang_src [=[
-#ifndef __OBJC__
-#  error "Not an Objective-C++ compiler"
-#endif
-int main(void) { return 0; }]=])
-    set(_lang_fail_regex FAIL_REGEX "command[ -]line option .* is valid for .* but not for Objective-C\\+\\+" # GNU
-                         FAIL_REGEX "argument unused during compilation: .*") # Clang
-  elseif(_lang STREQUAL ISPC)
-    set(_lang_src "float func(uniform int32, float a) { return a / 2.25; }")
-  else()
-    message (SEND_ERROR "check_compiler_flag: ${_lang}: unknown language.")
-    return()
-  endif()
-
-  get_property (_supported_languages GLOBAL PROPERTY ENABLED_LANGUAGES)
-  if (NOT _lang IN_LIST _supported_languages)
-    message (SEND_ERROR "check_compiler_flag: ${_lang}: needs to be enabled before use.")
-    return()
-  endif()
-
-  set(CMAKE_REQUIRED_DEFINITIONS ${_flag})
-
-  # Normalize locale during test compilation.
-  set(_locale_vars LC_ALL LC_MESSAGES LANG)
-  foreach(v IN LISTS _locale_vars)
-    set(_locale_vars_saved_${v} "$ENV{${v}}")
-    set(ENV{${v}} C)
-  endforeach()
-
-  check_compiler_flag_common_patterns(_common_patterns)
-  check_source_compiles(${_lang}
-    "${_lang_src}"
-    ${_var}
-    ${_lang_fail_regex}
-    ${_common_patterns}
-    )
-
-  foreach(v IN LISTS _locale_vars)
-    set(ENV{${v}} ${_locale_vars_saved_${v}})
-  endforeach()
-  set(${_var} "${${_var}}" PARENT_SCOPE)
-endfunction ()
-
-cmake_policy(POP)
+  cmake_check_compiler_flag(${_lang} "${_flag}" ${_var})
+endfunction()