FindOpenMP.cmake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#.rst:
# FindOpenMP
# ----------
#
# Finds OpenMP support
#
# This module can be used to detect OpenMP support in a compiler. If
# the compiler supports OpenMP, the flags required to compile with
# OpenMP support are returned in variables for the different languages.
# The variables may be empty if the compiler does not need a special
# flag to support OpenMP.
#
# Variables
# ^^^^^^^^^
#
# This module will set the following variables per language in your
# project, where ``<lang>`` is one of C, CXX, or Fortran:
#
# ``OpenMP_<lang>_FOUND``
# Variable indicating if OpenMP support for ``<lang>`` was detected.
# ``OpenMP_<lang>_FLAGS``
# OpenMP compiler flags for ``<lang>``, separated by spaces.
#
# For linking with OpenMP code written in ``<lang>``, the following
# variables are provided:
#
# ``OpenMP_<lang>_LIB_NAMES``
# :ref:`;-list <CMake Language Lists>` of libraries for OpenMP programs for ``<lang>``.
# ``OpenMP_<libname>_LIBRARY``
# Location of the individual libraries needed for OpenMP support in ``<lang>``.
# ``OpenMP_<lang>_LIBRARIES``
# A list of libraries needed to link with OpenMP code written in ``<lang>``.
#
# Additionally, the module provides :prop_tgt:`IMPORTED` targets:
#
# ``OpenMP::OpenMP_<lang>``
# Target for using OpenMP from ``<lang>``.
#
# Specifically for Fortran, the module sets the following variables:
#
# ``OpenMP_Fortran_HAVE_OMPLIB_HEADER``
# Boolean indicating if OpenMP is accessible through ``omp_lib.h``.
# ``OpenMP_Fortran_HAVE_OMPLIB_MODULE``
# Boolean indicating if OpenMP is accessible through the ``omp_lib`` Fortran module.
#
# The module will also try to provide the OpenMP version variables:
#
# ``OpenMP_<lang>_SPEC_DATE``
# Date of the OpenMP specification implemented by the ``<lang>`` compiler.
# ``OpenMP_<lang>_VERSION_MAJOR``
# Major version of OpenMP implemented by the ``<lang>`` compiler.
# ``OpenMP_<lang>_VERSION_MINOR``
# Minor version of OpenMP implemented by the ``<lang>`` compiler.
# ``OpenMP_<lang>_VERSION``
# OpenMP version implemented by the ``<lang>`` compiler.
#
# The specification date is formatted as given in the OpenMP standard:
# ``yyyymm`` where ``yyyy`` and ``mm`` represents the year and month of
# the OpenMP specification implemented by the ``<lang>`` compiler.
#
# Backward Compatibility
# ^^^^^^^^^^^^^^^^^^^^^^
#
# For backward compatibility with older versions of FindOpenMP, these
# variables are set, but deprecated::
#
# OpenMP_FOUND
#
# In new projects, please use the ``OpenMP_<lang>_XXX`` equivalents.
cmake_policy(PUSH)
cmake_policy(SET CMP0057 NEW) # if IN_LIST
function(_OPENMP_FLAG_CANDIDATES LANG)
if(NOT OpenMP_${LANG}_FLAG)
unset(OpenMP_FLAG_CANDIDATES)
set(OMP_FLAG_GNU "-fopenmp")
set(OMP_FLAG_Clang "-fopenmp=libomp" "-fopenmp=libiomp5" "-fopenmp")
set(OMP_FLAG_HP "+Oopenmp")
if(WIN32)
set(OMP_FLAG_Intel "-Qopenmp")
elseif(CMAKE_${LANG}_COMPILER_ID STREQUAL "Intel" AND
"${CMAKE_${LANG}_COMPILER_VERSION}" VERSION_LESS "15.0.0.20140528")
set(OMP_FLAG_Intel "-openmp")
else()
set(OMP_FLAG_Intel "-qopenmp")
endif()
set(OMP_FLAG_MIPSpro "-mp")
set(OMP_FLAG_MSVC "-openmp")
set(OMP_FLAG_PathScale "-openmp")
set(OMP_FLAG_NAG "-openmp")
set(OMP_FLAG_Absoft "-openmp")
set(OMP_FLAG_PGI "-mp")
set(OMP_FLAG_SunPro "-xopenmp")
set(OMP_FLAG_XL "-qsmp=omp")
# Cray compiles with OpenMP automatically
set(OMP_FLAG_Cray " ")
# If we know the correct flags, use those
if(DEFINED OMP_FLAG_${CMAKE_${LANG}_COMPILER_ID})
set(OpenMP_FLAG_CANDIDATES "${OMP_FLAG_${CMAKE_${LANG}_COMPILER_ID}}")
# Fall back to reasonable default tries otherwise
else()
set(OpenMP_FLAG_CANDIDATES "-openmp" "-fopenmp" "-mp" " ")
endif()
set(OpenMP_${LANG}_FLAG_CANDIDATES "${OpenMP_FLAG_CANDIDATES}" PARENT_SCOPE)
else()
set(OpenMP_${LANG}_FLAG_CANDIDATES "${OpenMP_${LANG}_FLAG}" PARENT_SCOPE)
endif()
endfunction()
# sample openmp source code to test
set(OpenMP_C_CXX_TEST_SOURCE
"
#include <omp.h>
int main() {
#ifndef _OPENMP
breaks_on_purpose
#endif
}
")
# in Fortran, an implementation may provide an omp_lib.h header
# or omp_lib module, or both (OpenMP standard, section 3.1)
# Furthmore !$ is the Fortran equivalent of #ifdef _OPENMP (OpenMP standard, 2.2.2)
# Without the conditional compilation, some compilers (e.g. PGI) might compile OpenMP code
# while not actually enabling OpenMP, building code sequentially
set(OpenMP_Fortran_TEST_SOURCE
"
program test
@OpenMP_Fortran_INCLUDE_LINE@
!$ integer :: n
n = omp_get_num_threads()
end program test
"
)
function(_OPENMP_WRITE_SOURCE_FILE LANG SRC_FILE_CONTENT_VAR SRC_FILE_NAME SRC_FILE_FULLPATH)
set(WORK_DIR ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/FindOpenMP)
if("${LANG}" STREQUAL "C")
set(SRC_FILE "${WORK_DIR}/${SRC_FILE_NAME}.c")
file(WRITE "${SRC_FILE}" "${OpenMP_C_CXX_${SRC_FILE_CONTENT_VAR}}")
elseif("${LANG}" STREQUAL "CXX")
set(SRC_FILE "${WORK_DIR}/${SRC_FILE_NAME}.cpp")
file(WRITE "${SRC_FILE}" "${OpenMP_C_CXX_${SRC_FILE_CONTENT_VAR}}")
elseif("${LANG}" STREQUAL "Fortran")
set(SRC_FILE "${WORK_DIR}/${SRC_FILE_NAME}.f90")
file(WRITE "${SRC_FILE}_in" "${OpenMP_Fortran_${SRC_FILE_CONTENT_VAR}}")
configure_file("${SRC_FILE}_in" "${SRC_FILE}" @ONLY)
endif()
set(${SRC_FILE_FULLPATH} "${SRC_FILE}" PARENT_SCOPE)
endfunction()
include(${CMAKE_ROOT}/Modules/CMakeParseImplicitLinkInfo.cmake)
function(_OPENMP_GET_FLAGS LANG FLAG_MODE OPENMP_FLAG_VAR OPENMP_LIB_NAMES_VAR)
_OPENMP_FLAG_CANDIDATES("${LANG}")
_OPENMP_WRITE_SOURCE_FILE("${LANG}" "TEST_SOURCE" OpenMPTryFlag _OPENMP_TEST_SRC)
foreach(OPENMP_FLAG IN LISTS OpenMP_${LANG}_FLAG_CANDIDATES)
set(OPENMP_FLAGS_TEST "${OPENMP_FLAG}")
if(CMAKE_${LANG}_VERBOSE_FLAG)
string(APPEND OPENMP_FLAGS_TEST " ${CMAKE_${LANG}_VERBOSE_FLAG}")
endif()
string(REGEX REPLACE "[-/=+]" "" OPENMP_PLAIN_FLAG "${OPENMP_FLAG}")
try_compile( OpenMP_COMPILE_RESULT_${FLAG_MODE}_${OPENMP_PLAIN_FLAG} ${CMAKE_BINARY_DIR} ${_OPENMP_TEST_SRC}
CMAKE_FLAGS "-DCOMPILE_DEFINITIONS:STRING=${OPENMP_FLAGS_TEST}"
OUTPUT_VARIABLE OpenMP_TRY_COMPILE_OUTPUT
)
if(OpenMP_COMPILE_RESULT_${FLAG_MODE}_${OPENMP_PLAIN_FLAG})
set("${OPENMP_FLAG_VAR}" "${OPENMP_FLAG}" PARENT_SCOPE)
if(CMAKE_${LANG}_VERBOSE_FLAG)
unset(OpenMP_${LANG}_IMPLICIT_LIBRARIES)
unset(OpenMP_${LANG}_IMPLICIT_LINK_DIRS)
unset(OpenMP_${LANG}_IMPLICIT_FWK_DIRS)
unset(OpenMP_${LANG}_LOG_VAR)
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Detecting ${LANG} OpenMP compiler ABI info compiled with the following output:\n${OpenMP_TRY_COMPILE_OUTPUT}\n\n")
cmake_parse_implicit_link_info("${OpenMP_TRY_COMPILE_OUTPUT}"
OpenMP_${LANG}_IMPLICIT_LIBRARIES
OpenMP_${LANG}_IMPLICIT_LINK_DIRS
OpenMP_${LANG}_IMPLICIT_FWK_DIRS
OpenMP_${LANG}_LOG_VAR
"${CMAKE_${LANG}_IMPLICIT_OBJECT_REGEX}"
)
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Parsed ${LANG} OpenMP implicit link information from above output:\n${OpenMP_${LANG}_LOG_VAR}\n\n")
unset(_OPENMP_LIB_NAMES)
foreach(_OPENMP_IMPLICIT_LIB IN LISTS OpenMP_${LANG}_IMPLICIT_LIBRARIES)
if(NOT "${_OPENMP_IMPLICIT_LIB}" IN_LIST CMAKE_${LANG}_IMPLICIT_LINK_LIBRARIES)
find_library(OpenMP_${_OPENMP_IMPLICIT_LIB}_LIBRARY
NAMES "${_OPENMP_IMPLICIT_LIB}"
HINTS ${OpenMP_${LANG}_IMPLICIT_LINK_DIRS}
)
mark_as_advanced(OpenMP_${_OPENMP_IMPLICIT_LIB}_LIBRARY)
list(APPEND _OPENMP_LIB_NAMES ${_OPENMP_IMPLICIT_LIB})
endif()
endforeach()
set("${OPENMP_LIB_NAMES_VAR}" "${_OPENMP_LIB_NAMES}" PARENT_SCOPE)
else()
# The Intel compiler on windows has no verbose mode, so we need to treat it explicitly
if("${CMAKE_${LANG}_COMPILER_ID}" STREQUAL "Intel" AND "${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
set("${OPENMP_LIB_NAMES_VAR}" "libiomp5md" PARENT_SCOPE)
find_library(OpenMP_libiomp5md_LIBRARY
NAMES "libiomp5md"
HINTS ${CMAKE_${LANG}_IMPLICIT_LINK_DIRECTORIES}
)
mark_as_advanced(OpenMP_libiomp5md_LIBRARY)
else()
set("${OPENMP_LIB_NAMES_VAR}" "" PARENT_SCOPE)
endif()
endif()
break()
endif()
set("${OPENMP_LIB_NAMES_VAR}" "NOTFOUND" PARENT_SCOPE)
set("${OPENMP_FLAG_VAR}" "NOTFOUND" PARENT_SCOPE)
endforeach()
endfunction()
set(OpenMP_C_CXX_CHECK_VERSION_SOURCE
"
#include <stdio.h>
#include <omp.h>
const char ompver_str[] = { 'I', 'N', 'F', 'O', ':', 'O', 'p', 'e', 'n', 'M',
'P', '-', 'd', 'a', 't', 'e', '[',
('0' + ((_OPENMP/100000)%10)),
('0' + ((_OPENMP/10000)%10)),
('0' + ((_OPENMP/1000)%10)),
('0' + ((_OPENMP/100)%10)),
('0' + ((_OPENMP/10)%10)),
('0' + ((_OPENMP/1)%10)),
']', '\\0' };
int main()
{
puts(ompver_str);
}
")
set(OpenMP_Fortran_CHECK_VERSION_SOURCE
"
program omp_ver
@OpenMP_Fortran_INCLUDE_LINE@
integer, parameter :: zero = ichar('0')
integer, parameter :: ompv = openmp_version
character, dimension(24), parameter :: ompver_str =&
(/ 'I', 'N', 'F', 'O', ':', 'O', 'p', 'e', 'n', 'M', 'P', '-',&
'd', 'a', 't', 'e', '[',&
char(zero + mod(ompv/100000, 10)),&
char(zero + mod(ompv/10000, 10)),&
char(zero + mod(ompv/1000, 10)),&
char(zero + mod(ompv/100, 10)),&
char(zero + mod(ompv/10, 10)),&
char(zero + mod(ompv/1, 10)), ']' /)
print *, ompver_str
end program omp_ver
")
function(_OPENMP_GET_SPEC_DATE LANG SPEC_DATE)
_OPENMP_WRITE_SOURCE_FILE("${LANG}" "CHECK_VERSION_SOURCE" OpenMPCheckVersion _OPENMP_TEST_SRC)
set(BIN_FILE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/FindOpenMP/ompver_${LANG}.bin")
string(REGEX REPLACE "[-/=+]" "" OPENMP_PLAIN_FLAG "${OPENMP_FLAG}")
try_compile(OpenMP_SPECTEST_${LANG}_${OPENMP_PLAIN_FLAG} "${CMAKE_BINARY_DIR}" "${_OPENMP_TEST_SRC}"
CMAKE_FLAGS "-DCOMPILE_DEFINITIONS:STRING=${OpenMP_${LANG}_FLAGS}"
COPY_FILE ${BIN_FILE})
if(${OpenMP_SPECTEST_${LANG}_${OPENMP_PLAIN_FLAG}})
file(STRINGS ${BIN_FILE} specstr LIMIT_COUNT 1 REGEX "INFO:OpenMP-date")
set(regex_spec_date ".*INFO:OpenMP-date\\[0*([^]]*)\\].*")
if("${specstr}" MATCHES "${regex_spec_date}")
set(${SPEC_DATE} "${CMAKE_MATCH_1}" PARENT_SCOPE)
endif()
endif()
endfunction()
macro(_OPENMP_SET_VERSION_BY_SPEC_DATE LANG)
set(OpenMP_SPEC_DATE_MAP
# Combined versions, 2.5 onwards
"201511=4.5"
"201307=4.0"
"201107=3.1"
"200805=3.0"
"200505=2.5"
# C/C++ version 2.0
"200203=2.0"
# Fortran version 2.0
"200011=2.0"
# Fortran version 1.1
"199911=1.1"
# C/C++ version 1.0 (there's no 1.1 for C/C++)
"199810=1.0"
# Fortran version 1.0
"199710=1.0"
)
string(REGEX MATCHALL "${OpenMP_${LANG}_SPEC_DATE}=([0-9]+)\\.([0-9]+)" _version_match "${OpenMP_SPEC_DATE_MAP}")
if(NOT _version_match STREQUAL "")
set(OpenMP_${LANG}_VERSION_MAJOR ${CMAKE_MATCH_1})
set(OpenMP_${LANG}_VERSION_MINOR ${CMAKE_MATCH_2})
set(OpenMP_${LANG}_VERSION "${OpenMP_${LANG}_VERSION_MAJOR}.${OpenMP_${LANG}_VERSION_MINOR}")
else()
unset(OpenMP_${LANG}_VERSION_MAJOR)
unset(OpenMP_${LANG}_VERSION_MINOR)
unset(OpenMP_${LANG}_VERSION)
endif()
unset(_version_match)
unset(OpenMP_SPEC_DATE_MAP)
endmacro()
foreach(LANG IN ITEMS C CXX)
if(CMAKE_${LANG}_COMPILER_LOADED)
if(NOT DEFINED OpenMP_${LANG}_FLAGS OR "${OpenMP_${LANG}_FLAGS}" STREQUAL "NOTFOUND"
OR NOT DEFINED OpenMP_${LANG}_LIB_NAMES OR "${OpenMP_${LANG}_LIB_NAMES}" STREQUAL "NOTFOUND")
_OPENMP_GET_FLAGS("${LANG}" "${LANG}" OpenMP_${LANG}_FLAGS_WORK OpenMP_${LANG}_LIB_NAMES_WORK)
endif()
set(OpenMP_${LANG}_FLAGS "${OpenMP_${LANG}_FLAGS_WORK}"
CACHE STRING "${LANG} compiler flags for OpenMP parallelization")
set(OpenMP_${LANG}_LIB_NAMES "${OpenMP_${LANG}_LIB_NAMES_WORK}"
CACHE STRING "${LANG} compiler libraries for OpenMP parallelization")
mark_as_advanced(OpenMP_${LANG}_FLAGS OpenMP_${LANG}_LIB_NAMES)
endif()
endforeach()
if(CMAKE_Fortran_COMPILER_LOADED)
if(NOT DEFINED OpenMP_Fortran_FLAGS OR "${OpenMP_Fortran_FLAGS}" STREQUAL "NOTFOUND"
OR NOT DEFINED OpenMP_Fortran_LIB_NAMES OR "${OpenMP_Fortran_LIB_NAMES}" STREQUAL "NOTFOUND"
OR NOT DEFINED OpenMP_Fortran_HAVE_OMPLIB_MODULE)
set(OpenMP_Fortran_INCLUDE_LINE "use omp_lib\n implicit none")
_OPENMP_GET_FLAGS("Fortran" "FortranHeader" OpenMP_Fortran_FLAGS_WORK OpenMP_Fortran_LIB_NAMES_WORK)
if(OpenMP_Fortran_FLAGS_WORK)
set(OpenMP_Fortran_HAVE_OMPLIB_MODULE TRUE CACHE BOOL INTERNAL "")
endif()
set(OpenMP_Fortran_FLAGS "${OpenMP_Fortran_FLAGS_WORK}"
CACHE STRING "Fortran compiler flags for OpenMP parallelization")
set(OpenMP_Fortran_LIB_NAMES "${OpenMP_Fortran_LIB_NAMES_WORK}"
CACHE STRING "Fortran compiler libraries for OpenMP parallelization")
mark_as_advanced(OpenMP_Fortran_FLAGS OpenMP_Fortran_LIB_NAMES)
endif()
if(NOT DEFINED OpenMP_Fortran_FLAGS OR "${OpenMP_Fortran_FLAGS}" STREQUAL "NOTFOUND"
OR NOT DEFINED OpenMP_Fortran_LIB_NAMES OR "${OpenMP_Fortran_LIB_NAMES}" STREQUAL "NOTFOUND"
OR NOT DEFINED OpenMP_Fortran_HAVE_OMPLIB_HEADER)
set(OpenMP_Fortran_INCLUDE_LINE "implicit none\n include 'omp_lib.h'")
_OPENMP_GET_FLAGS("Fortran" "FortranModule" OpenMP_Fortran_FLAGS_WORK OpenMP_Fortran_LIB_NAMES_WORK)
if(OpenMP_Fortran_FLAGS_WORK)
set(OpenMP_Fortran_HAVE_OMPLIB_HEADER TRUE CACHE BOOL INTERNAL "")
endif()
set(OpenMP_Fortran_FLAGS "${OpenMP_Fortran_FLAGS_WORK}"
CACHE STRING "Fortran compiler flags for OpenMP parallelization")
set(OpenMP_Fortran_LIB_NAMES "${OpenMP_Fortran_LIB_NAMES}"
CACHE STRING "Fortran compiler libraries for OpenMP parallelization")
endif()
if(OpenMP_Fortran_HAVE_OMPLIB_MODULE)
set(OpenMP_Fortran_INCLUDE_LINE "use omp_lib\n implicit none")
else()
set(OpenMP_Fortran_INCLUDE_LINE "implicit none\n include 'omp_lib.h'")
endif()
endif()
set(OPENMP_FOUND TRUE)
foreach(LANG IN ITEMS C CXX Fortran)
if(CMAKE_${LANG}_COMPILER_LOADED)
if (NOT OpenMP_${LANG}_SPEC_DATE)
_OPENMP_GET_SPEC_DATE("${LANG}" OpenMP_${LANG}_SPEC_DATE_INTERNAL)
set(OpenMP_${LANG}_SPEC_DATE "${OpenMP_${LANG}_SPEC_DATE_INTERNAL}" CACHE
INTERNAL "${LANG} compiler's OpenMP specification date")
_OPENMP_SET_VERSION_BY_SPEC_DATE("${LANG}")
endif()
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
set(OpenMP_${LANG}_FIND_QUIETLY ${OpenMP_FIND_QUIETLY})
set(OpenMP_${LANG}_FIND_REQUIRED ${OpenMP_FIND_REQUIRED})
set(OpenMP_${LANG}_FIND_VERSION ${OpenMP_FIND_VERSION})
set(OpenMP_${LANG}_FIND_VERSION_EXACT ${OpenMP_FIND_VERSION_EXACT})
set(_OPENMP_${LANG}_REQUIRED_VARS OpenMP_${LANG}_FLAGS)
if("${OpenMP_${LANG}_LIB_NAMES}" STREQUAL "NOTFOUND")
set(_OPENMP_${LANG}_REQUIRED_LIB_VARS OpenMP_${LANG}_LIB_NAMES)
else()
foreach(_OPENMP_IMPLICIT_LIB IN LISTS OpenMP_${LANG}_LIB_NAMES)
list(APPEND _OPENMP_${LANG}_REQUIRED_LIB_VARS OpenMP_${_OPENMP_IMPLICIT_LIB}_LIBRARY)
endforeach()
endif()
find_package_handle_standard_args(OpenMP_${LANG}
REQUIRED_VARS OpenMP_${LANG}_FLAGS ${_OPENMP_${LANG}_REQUIRED_LIB_VARS}
VERSION_VAR OpenMP_${LANG}_VERSION
)
if(OpenMP_${LANG}_FOUND)
set(OpenMP_${LANG}_LIBRARIES "")
foreach(_OPENMP_IMPLICIT_LIB IN LISTS OpenMP_${LANG}_LIB_NAMES)
list(APPEND OpenMP_${LANG}_LIBRARIES "${OpenMP_${_OPENMP_IMPLICIT_LIB}_LIBRARY}")
endforeach()
if(NOT TARGET OpenMP::OpenMP_${LANG})
add_library(OpenMP::OpenMP_${LANG} INTERFACE IMPORTED)
endif()
if(OpenMP_${LANG}_FLAGS)
separate_arguments(_OpenMP_${LANG}_OPTIONS NATIVE_COMMAND "${OpenMP_${LANG}_FLAGS}")
set_property(TARGET OpenMP::OpenMP_${LANG} PROPERTY
INTERFACE_COMPILE_OPTIONS "${_OpenMP_${LANG}_OPTIONS}")
unset(_OpenMP_${LANG}_OPTIONS)
endif()
if(OpenMP_${LANG}_LIBRARIES)
set_property(TARGET OpenMP::OpenMP_${LANG} PROPERTY
INTERFACE_LINK_LIBRARIES "${OpenMP_${LANG}_LIBRARIES}")
endif()
else()
set(OPENMP_FOUND FALSE)
endif()
endif()
endforeach()
set(OpenMP_FOUND ${OPENMP_FOUND})
if(CMAKE_Fortran_COMPILER_LOADED AND OpenMP_Fortran_FOUND)
if(NOT DEFINED OpenMP_Fortran_HAVE_OMPLIB_MODULE)
set(OpenMP_Fortran_HAVE_OMPLIB_MODULE FALSE CACHE BOOL INTERNAL "")
endif()
if(NOT DEFINED OpenMP_Fortran_HAVE_OMPLIB_HEADER)
set(OpenMP_Fortran_HAVE_OMPLIB_HEADER FALSE CACHE BOOL INTERNAL "")
endif()
endif()
if(NOT ( CMAKE_C_COMPILER_LOADED OR CMAKE_CXX_COMPILER_LOADED OR CMAKE_Fortran_COMPILER_LOADED ))
message(SEND_ERROR "FindOpenMP requires the C, CXX or Fortran languages to be enabled")
endif()
unset(OpenMP_C_CXX_TEST_SOURCE)
unset(OpenMP_Fortran_TEST_SOURCE)
unset(OpenMP_C_CXX_CHECK_VERSION_SOURCE)
unset(OpenMP_Fortran_CHECK_VERSION_SOURCE)
unset(OpenMP_Fortran_INCLUDE_LINE)
cmake_policy(POP)
