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extern/cmake/2.85/share/cmake-2.8/Modules/Platform/Darwin-GNU.cmake

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+
+#=============================================================================
+# Copyright 2002-2009 Kitware, Inc.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+# This module is shared by multiple languages; use include blocker.
+if(__DARWIN_COMPILER_GNU)
+  return()
+endif()
+set(__DARWIN_COMPILER_GNU 1)
+
+macro(__darwin_compiler_gnu lang)
+  # GNU does not have -shared on OS X
+  set(CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS "-dynamiclib -Wl,-headerpad_max_install_names")
+  set(CMAKE_SHARED_MODULE_CREATE_${lang}_FLAGS "-bundle -Wl,-headerpad_max_install_names")
+endmacro()
+
+macro(cmake_gnu_has_isysroot lang)
+  if("x${CMAKE_${lang}_HAS_ISYSROOT}" STREQUAL "x")
+    set(_doc "${lang} compiler has -isysroot")
+    message(STATUS "Checking whether ${_doc}")
+    execute_process(
+      COMMAND ${CMAKE_${lang}_COMPILER} "-v" "--help"
+      OUTPUT_VARIABLE _gcc_help
+      ERROR_VARIABLE _gcc_help
+      )
+    if("${_gcc_help}" MATCHES "isysroot")
+      message(STATUS "Checking whether ${_doc} - yes")
+      set(CMAKE_${lang}_HAS_ISYSROOT 1)
+    else()
+      message(STATUS "Checking whether ${_doc} - no")
+      set(CMAKE_${lang}_HAS_ISYSROOT 0)
+    endif()
+  endif()
+endmacro()
+
+macro(cmake_gnu_set_osx_deployment_target_flag lang)
+  if(NOT DEFINED CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG)
+    set(_doc "${lang} compiler supports OSX deployment target flag")
+    message(STATUS "Checking whether ${_doc}")
+    execute_process(
+      COMMAND ${CMAKE_${lang}_COMPILER} "-v" "--help"
+      OUTPUT_VARIABLE _gcc_help
+      ERROR_VARIABLE _gcc_help
+      )
+    if("${_gcc_help}" MATCHES "macosx-version-min")
+      message(STATUS "Checking whether ${_doc} - yes")
+      set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG "-mmacosx-version-min=")
+    else()
+      message(STATUS "Checking whether ${_doc} - no")
+      set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG "")
+    endif()
+    set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG_CODE "SET(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG \"${CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG}\")")
+  endif()
+endmacro()