1 # Distributed under the OSI-approved BSD 3-Clause License. See accompanying
2 # file Copyright.txt or https://cmake.org/licensing for details.
4 #[=======================================================================[.rst:
5 CheckOBJCSourceCompiles
6 -----------------------
10 Check if given Objective-C source compiles and links into an executable.
12 .. command:: check_objc_source_compiles
16 check_objc_source_compiles(<code> <resultVar>
17 [FAIL_REGEX <regex1> [<regex2>...]])
19 Check that the source supplied in ``<code>`` can be compiled as a Objectie-C source
20 file and linked as an executable (so it must contain at least a ``main()``
21 function). The result will be stored in the internal cache variable specified
22 by ``<resultVar>``, with a boolean true value for success and boolean false
23 for failure. If ``FAIL_REGEX`` is provided, then failure is determined by
24 checking if anything in the output matches any of the specified regular
27 The check is only performed once, with the result cached in the variable named
28 by ``<resultVar>``. Every subsequent CMake run will reuse this cached value
29 rather than performing the check again, even if the ``<code>`` changes. In
30 order to force the check to be re-evaluated, the variable named by
31 ``<resultVar>`` must be manually removed from the cache.
33 The compile and link commands can be influenced by setting any of the
34 following variables prior to calling ``check_objc_source_compiles()``
36 .. include:: /module/CMAKE_REQUIRED_FLAGS.txt
38 .. include:: /module/CMAKE_REQUIRED_DEFINITIONS.txt
40 .. include:: /module/CMAKE_REQUIRED_INCLUDES.txt
42 .. include:: /module/CMAKE_REQUIRED_LINK_OPTIONS.txt
44 .. include:: /module/CMAKE_REQUIRED_LIBRARIES.txt
46 .. include:: /module/CMAKE_REQUIRED_QUIET.txt
48 #]=======================================================================]
51 include(Internal/CheckSourceCompiles)
53 macro(CHECK_OBJC_SOURCE_COMPILES SOURCE VAR)
54 cmake_check_source_compiles(OBJC "${SOURCE}" ${VAR} ${ARGN})