blob: 801cf177166be915a0ca0f78bd2ebb2aa433f6ad (
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.
#[=======================================================================[.rst:
CheckCSourceCompiles
--------------------
Check once if C source code can be built.
.. command:: check_c_source_compiles
.. code-block:: cmake
check_c_source_compiles(<code> <resultVar>
[FAIL_REGEX <regex1> [<regex2>...]])
Check once that the source supplied in ``<code>`` can be built. The result is
stored in the internal cache variable specified by ``<resultVar>``, with
boolean ``true`` for success and boolean ``false`` for failure.
If ``FAIL_REGEX`` is provided, then failure is determined by checking
if anything in the compiler output matches any of the specified regular
expressions.
Internally, :command:`try_compile` is used to compile the source. If
:variable:`CMAKE_TRY_COMPILE_TARGET_TYPE` is set to ``EXECUTABLE`` (default),
the source is compiled and linked as an executable program. If set to
``STATIC_LIBRARY``, the source is compiled but not linked. In any case, all
functions must be declared as usual.
See also :command:`check_source_compiles` for a more general command syntax.
See also :command:`check_source_runs` to run compiled source.
The compile and link commands can be influenced by setting any of the
following variables prior to calling ``check_c_source_compiles()``:
.. include:: /module/CMAKE_REQUIRED_FLAGS.txt
.. include:: /module/CMAKE_REQUIRED_DEFINITIONS.txt
.. include:: /module/CMAKE_REQUIRED_INCLUDES.txt
.. include:: /module/CMAKE_REQUIRED_LINK_OPTIONS.txt
.. include:: /module/CMAKE_REQUIRED_LIBRARIES.txt
.. include:: /module/CMAKE_REQUIRED_QUIET.txt
#]=======================================================================]
include_guard(GLOBAL)
include(Internal/CheckSourceCompiles)
macro(CHECK_C_SOURCE_COMPILES SOURCE VAR)
cmake_check_source_compiles(C "${SOURCE}" ${VAR} ${ARGN})
endmacro()
|
