summaryrefslogtreecommitdiffstats
path: root/Modules/Platform/Apple-GNU.cmake
blob: 0eb8168310087649b72fb49480293adc2ab82f9a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
# 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.
include_guard()

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()