mirror of
https://github.com/Kitware/CMake.git
synced 2025-05-09 23:08:18 +08:00
4e6a13f211
Where possible this syncs the CS for command names: - check_c_source_compiles() - check_cxx_compiler_flag() - check_cxx_source_compiles() - check_cxx_symbol_exists() - check_include_file_cxx() - check_include_file() - check_include_files() - check_library_exists() - check_source_compiles() - check_struct_has_member() - check_symbol_exists() - check_type_size() - cmake_dependent_option() - cmake_parse_arguments() - feature_summary() - file() - find_package_handle_standard_args() - if(), endif... - install(FILES) - list() - message() - pkg_check_modules() - select_library_configurations() - set_package_info() - test_big_endian()
97 lines
2.8 KiB
CMake
97 lines
2.8 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
# file Copyright.txt or https://cmake.org/licensing for details.
|
|
|
|
#[=======================================================================[.rst:
|
|
CheckStructHasMember
|
|
--------------------
|
|
|
|
Check if the given struct or class has the specified member variable
|
|
|
|
.. command:: check_struct_has_member
|
|
|
|
.. code-block:: cmake
|
|
|
|
check_struct_has_member(<struct> <member> <headers> <variable>
|
|
[LANGUAGE <language>])
|
|
|
|
Check that the struct or class ``<struct>`` has the specified ``<member>``
|
|
after including the given header(s) ``<headers>`` where the prototype should
|
|
be declared. Specify the list of header files in one argument as a
|
|
semicolon-separated list. The result is stored in an internal cache variable
|
|
``<variable>``.
|
|
|
|
The options are:
|
|
|
|
``LANGUAGE <language>``
|
|
Use the ``<language>`` compiler to perform the check.
|
|
Acceptable values are ``C`` and ``CXX``.
|
|
If not specified, it defaults to ``C``.
|
|
|
|
The following variables may be set before calling this macro to modify
|
|
the way the check is run:
|
|
|
|
.. 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
|
|
|
|
Example
|
|
^^^^^^^
|
|
|
|
.. code-block:: cmake
|
|
|
|
include(CheckStructHasMember)
|
|
|
|
check_struct_has_member("struct timeval" tv_sec sys/select.h
|
|
HAVE_TIMEVAL_TV_SEC LANGUAGE C)
|
|
#]=======================================================================]
|
|
|
|
include_guard(GLOBAL)
|
|
include(CheckSourceCompiles)
|
|
|
|
macro (CHECK_STRUCT_HAS_MEMBER _STRUCT _MEMBER _HEADER _RESULT)
|
|
set(_INCLUDE_FILES)
|
|
foreach (it ${_HEADER})
|
|
string(APPEND _INCLUDE_FILES "#include <${it}>\n")
|
|
endforeach ()
|
|
|
|
if("x${ARGN}" STREQUAL "x")
|
|
set(_lang C)
|
|
elseif("x${ARGN}" MATCHES "^xLANGUAGE;([a-zA-Z]+)$")
|
|
set(_lang "${CMAKE_MATCH_1}")
|
|
else()
|
|
message(FATAL_ERROR "Unknown arguments:\n ${ARGN}\n")
|
|
endif()
|
|
|
|
set(_CHECK_STRUCT_MEMBER_SOURCE_CODE "
|
|
${_INCLUDE_FILES}
|
|
int main(void)
|
|
{
|
|
(void)sizeof(((${_STRUCT} *)0)->${_MEMBER});
|
|
return 0;
|
|
}
|
|
")
|
|
|
|
if("${_lang}" STREQUAL "C")
|
|
check_source_compiles(C "${_CHECK_STRUCT_MEMBER_SOURCE_CODE}" ${_RESULT})
|
|
elseif("${_lang}" STREQUAL "CXX")
|
|
check_source_compiles(CXX "${_CHECK_STRUCT_MEMBER_SOURCE_CODE}" ${_RESULT})
|
|
else()
|
|
message(FATAL_ERROR "Unknown language:\n ${_lang}\nSupported languages: C, CXX.\n")
|
|
endif()
|
|
endmacro ()
|
|
|
|
# FIXME(#24994): The following modules are included only for compatibility
|
|
# with projects that accidentally relied on them with CMake 3.26 and below.
|
|
include(CheckCSourceCompiles)
|
|
include(CheckCXXSourceCompiles)
|