qt5base-lts/cmake/FindWrapRt.cmake
Lucie Gérard fb1b20eab3 Add license headers to cmake files
CMakeLists.txt and .cmake files of significant size
(more than 2 lines according to our check in tst_license.pl)
now have the copyright and license header.

Existing copyright statements remain intact

Task-number: QTBUG-88621
Change-Id: I3b98cdc55ead806ec81ce09af9271f9b95af97fa
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
2022-08-03 17:14:55 +02:00

44 lines
1.1 KiB
CMake

# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
# We can't create the same interface imported target multiple times, CMake will complain if we do
# that. This can happen if the find_package call is done in multiple different subdirectories.
if(TARGET WrapRt::WrapRt)
set(WrapRt_FOUND ON)
return()
endif()
set(WrapRt_FOUND OFF)
include(CheckCXXSourceCompiles)
include(CMakePushCheckState)
find_library(LIBRT rt)
cmake_push_check_state()
if(LIBRT)
list(APPEND CMAKE_REQUIRED_LIBRARIES "${LIBRT}")
endif()
check_cxx_source_compiles("
#include <unistd.h>
#include <time.h>
int main(int, char **) {
timespec ts; clock_gettime(CLOCK_REALTIME, &ts);
}" HAVE_GETTIME)
cmake_pop_check_state()
if(HAVE_GETTIME)
set(WrapRt_FOUND ON)
add_library(WrapRt::WrapRt INTERFACE IMPORTED)
if (LIBRT)
target_link_libraries(WrapRt::WrapRt INTERFACE "${LIBRT}")
endif()
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(WrapRt DEFAULT_MSG WrapRt_FOUND)