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lammps/lib/kokkos/cmake/deps/Pthread.cmake
2020-12-22 08:52:37 -07:00

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CMake

# @HEADER
# ************************************************************************
#
# Kokkos v. 3.0
# Copyright (2020) National Technology & Engineering
# Solutions of Sandia, LLC (NTESS).
#
# Under the terms of Contract DE-NA0003525 with NTESS,
# the U.S. Government retains certain rights in this software.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# 2. 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.
#
# 3. Neither the name of the Corporation nor the names of the
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY NTESS "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 NTESS OR THE
# CONTRIBUTORS 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.
#
# Questions? Contact Christian R. Trott (crtrott@sandia.gov)
#
# ************************************************************************
# @HEADER
SET(USE_THREADS FALSE)
IF(NOT TPL_Pthread_INCLUDE_DIRS AND NOT TPL_Pthread_LIBRARY_DIRS AND NOT TPL_Pthread_LIBRARIES)
# Use CMake's Thread finder since it is a bit smarter in determining
# whether pthreads is already built into the compiler and doesn't need
# a library to link.
FIND_PACKAGE(Threads)
#If Threads found a copy of pthreads make sure it is one of the cases the tribits
#tpl system cannot handle.
IF(Threads_FOUND AND CMAKE_USE_PTHREADS_INIT)
IF(CMAKE_THREAD_LIBS_INIT STREQUAL "" OR CMAKE_THREAD_LIBS_INIT STREQUAL "-pthread")
SET(USE_THREADS TRUE)
ENDIF()
ENDIF()
ENDIF()
IF(USE_THREADS)
SET(TPL_Pthread_INCLUDE_DIRS "")
SET(TPL_Pthread_LIBRARIES "${CMAKE_THREAD_LIBS_INIT}")
SET(TPL_Pthread_LIBRARY_DIRS "")
KOKKOS_CREATE_IMPORTED_TPL_LIBRARY(Pthread)
ELSE()
KOKKOS_TPL_FIND_INCLUDE_DIRS_AND_LIBRARIES( Pthread
REQUIRED_HEADERS pthread.h
REQUIRED_LIBS_NAMES pthread
)
ENDIF()