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# --------------------------------------------------------------------------
# OpenMS -- Open-Source Mass Spectrometry
# --------------------------------------------------------------------------
# Copyright The OpenMS Team -- Eberhard Karls University Tuebingen,
# ETH Zurich, and Freie Universitaet Berlin 2002-2020.
#
# This software is released under a three-clause BSD license:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of any author or any participating institution
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
# For a full list of authors, refer to the file AUTHORS.
# --------------------------------------------------------------------------
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL ANY OF THE AUTHORS OR THE CONTRIBUTING
# INSTITUTIONS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# --------------------------------------------------------------------------
# $Maintainer: Stephan Aiche, Chris Bielow $
# $Authors: Andreas Bertsch, Chris Bielow, Stephan Aiche $
# --------------------------------------------------------------------------
#------------------------------------------------------------------------------
# This cmake files bundles all the multithreading related stuff of the OpenMS
# build system.
#------------------------------------------------------------------------------
# OpenMP
#------------------------------------------------------------------------------
message(STATUS "OpenMP support requested: ${MT_ENABLE_OPENMP}")
if (MT_ENABLE_OPENMP)
find_package(OpenMP)
endif()
if (OPENMP_FOUND)
# For CMake < 3.9, we need to make the OpenMP target ourselves
# from https://cliutils.gitlab.io/modern-cmake/chapters/packages/OpenMP.html
if(NOT TARGET OpenMP::OpenMP_CXX)
find_package(Threads REQUIRED)
add_library(OpenMP::OpenMP_CXX IMPORTED INTERFACE)
set_property(TARGET OpenMP::OpenMP_CXX
PROPERTY INTERFACE_COMPILE_OPTIONS ${OpenMP_CXX_FLAGS})
# Only works if the same flag is passed to the linker; use CMake 3.9+ otherwise (Intel, AppleClang)
set_property(TARGET OpenMP::OpenMP_CXX
PROPERTY INTERFACE_LINK_LIBRARIES ${OpenMP_CXX_FLAGS} Threads::Threads)
endif()
endif()
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