1 files changed, 60 insertions, 0 deletions
diff --git a/Modules/Platform/Apple-GNU.cmake b/Modules/Platform/Apple-GNU.cmake
new file mode 100644
index 0000000..9985ddd
--- /dev/null
+++ b/Modules/Platform/Apple-GNU.cmake
@@ -0,0 +1,60 @@
+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+
+# This module is shared by multiple languages; use include blocker.
+if(__APPLE_COMPILER_GNU)
+  return()
+endif()
+set(__APPLE_COMPILER_GNU 1)
+
+macro(__apple_compiler_gnu lang)
+  set(CMAKE_${lang}_VERBOSE_FLAG "-v -Wl,-v") # also tell linker to print verbose output
+  # GNU does not have -shared on OS X
+  set(CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS "-dynamiclib -Wl,-headerpad_max_install_names")
+  set(CMAKE_SHARED_MODULE_CREATE_${lang}_FLAGS "-bundle -Wl,-headerpad_max_install_names")
+
+  if(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4.3)
+    set(CMAKE_${lang}_SYSTEM_FRAMEWORK_SEARCH_FLAG "-iframework ")
+  endif()
+endmacro()
+
+macro(cmake_gnu_set_sysroot_flag lang)
+  if(NOT DEFINED CMAKE_${lang}_SYSROOT_FLAG)
+    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}_SYSROOT_FLAG "-isysroot")
+    else()
+      message(STATUS "Checking whether ${_doc} - no")
+      set(CMAKE_${lang}_SYSROOT_FLAG "")
+    endif()
+    set(CMAKE_${lang}_SYSROOT_FLAG_CODE "set(CMAKE_${lang}_SYSROOT_FLAG \"${CMAKE_${lang}_SYSROOT_FLAG}\")")
+  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()