blob: a0ddfee54d8efabd66a21a553a3cafe2de26378f (
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
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
CheckSourceRuns
-------------------
.. versionadded:: 3.19
Check if given source compiles and links into an executable and can
subsequently be run.
.. command:: check_source_runs
.. code-block:: cmake
check_source_runs(<lang> <code> <resultVar>
[SRC_EXT <extension>])
Check once that the ``<lang>`` source supplied in ``<code>`` can be built,
linked as an executable, and then run. The ``<code>`` must contain at least
a ``main()`` function, or in Fortran a ``program``.
The result is stored in the internal cache variable specified by
``<resultVar>``. Success of build and run is indicated by boolean ``true``.
Failure to build or run is indicated by boolean ``false`` such as an empty
string or an error message.
By default, the test source file will be given a file extension that matches
the requested language. The ``SRC_EXT`` option can be used to override this
with ``.<extension>`` instead.
The ``<code>`` must contain a valid main program. For example:
.. code-block:: cmake
check_source_runs(C
"#include <stdlib.h>
#include <stdnoreturn.h>
noreturn void f(){ exit(0); }
int main(void) { f(); return 1; }"
HAVE_NORETURN)
check_source_runs(Fortran
"program test
real :: x[*]
call co_sum(x)
end program"
HAVE_COARRAY)
The compile and link commands can be influenced by setting any of the
following variables prior to calling ``check_source_runs()``
.. 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_LINK_DIRECTORIES.txt
.. include:: /module/CMAKE_REQUIRED_QUIET.txt
#]=======================================================================]
include_guard(GLOBAL)
include(Internal/CheckSourceRuns)
function(CHECK_SOURCE_RUNS _lang _source _var)
cmake_check_source_runs(${_lang} "${_source}" ${_var} ${ARGN})
endfunction()
|
