diff options
Diffstat (limited to 'Modules/FindOpenMP.cmake')
| -rw-r--r-- | Modules/FindOpenMP.cmake | 535 |
1 files changed, 328 insertions, 207 deletions
diff --git a/Modules/FindOpenMP.cmake b/Modules/FindOpenMP.cmake index f399836..8c1b018 100644 --- a/Modules/FindOpenMP.cmake +++ b/Modules/FindOpenMP.cmake @@ -13,112 +13,215 @@ # The variables may be empty if the compiler does not need a special # flag to support OpenMP. # -# The following variables are set: +# Variables +# ^^^^^^^^^ # -# ``OpenMP_C_FLAGS`` -# Flags to add to the C compiler for OpenMP support. -# ``OpenMP_CXX_FLAGS`` -# Flags to add to the CXX compiler for OpenMP support. -# ``OpenMP_Fortran_FLAGS`` -# Flags to add to the Fortran compiler for OpenMP support. -# ``OPENMP_FOUND`` -# True if openmp is detected. +# This module will set the following variables per language in your +# project, where ``<lang>`` is one of C, CXX, or Fortran: # -# The following internal variables are set, if detected: +# ``OpenMP_<lang>_FOUND`` +# Variable indicating if OpenMP support for ``<lang>`` was detected. +# ``OpenMP_<lang>_FLAGS`` +# OpenMP compiler flags for ``<lang>``, separated by spaces. # -# ``OpenMP_C_SPEC_DATE`` -# Specification date of OpenMP version of C compiler. -# ``OpenMP_CXX_SPEC_DATE`` -# Specification date of OpenMP version of CXX compiler. -# ``OpenMP_Fortran_SPEC_DATE`` -# Specification date of OpenMP version of Fortran compiler. +# For linking with OpenMP code written in ``<lang>``, the following +# variables are provided: # -# The specification dates are formatted as integers of the form -# ``CCYYMM`` where these represent the decimal digits of the century, -# year, and month. +# ``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. -set(_OPENMP_REQUIRED_VARS) -set(CMAKE_REQUIRED_QUIET_SAVE ${CMAKE_REQUIRED_QUIET}) -set(CMAKE_REQUIRED_QUIET ${OpenMP_FIND_QUIETLY}) +cmake_policy(PUSH) +cmake_policy(SET CMP0057 NEW) # if IN_LIST function(_OPENMP_FLAG_CANDIDATES LANG) - set(OpenMP_FLAG_CANDIDATES - #Empty, if compiler automatically accepts openmp - " " - #GNU - "-fopenmp" - #Clang - "-fopenmp=libiomp5" - "-fopenmp=libomp" - #Microsoft Visual Studio - "/openmp" - #Intel windows - "-Qopenmp" - #PathScale, Intel - "-openmp" - #Sun - "-xopenmp" - #HP - "+Oopenmp" - #IBM XL C/c++ - "-qsmp" - #Portland Group, MIPSpro - "-mp" - ) + if(NOT OpenMP_${LANG}_FLAG) + set(OpenMP_FLAG_CANDIDATES "") + + set(OMP_FLAG_GNU "-fopenmp") + set(OMP_FLAG_Clang "-fopenmp=libomp" "-fopenmp=libiomp5") + set(OMP_FLAG_HP "+Oopenmp") + if(WIN32) + set(OMP_FLAG_Intel "-Qopenmp") + elseif(CMAKE_${LANG}_COMPILER_ID STREQUAL "Intel" AND + "${CMAKE_${LANG}_COMPILER_VERSION}" VERSION_LESS "15.0.0.20140528") + set(OMP_FLAG_Intel "-openmp") + else() + set(OMP_FLAG_Intel "-qopenmp") + endif() + set(OMP_FLAG_MIPSpro "-mp") + set(OMP_FLAG_MSVC "-openmp") + set(OMP_FLAG_PathScale "-openmp") + set(OMP_FLAG_PGI "-mp") + set(OMP_FLAG_SunPro "-xopenmp") + set(OMP_FLAG_XL "-qsmp=omp") + # Cray compiles with OpenMP automatically + + if(DEFINED OMP_FLAG_${CMAKE_${LANG}_COMPILER_ID}) + list(APPEND OpenMP_FLAG_CANDIDATES "${OMP_FLAG_${CMAKE_${LANG}_COMPILER_ID}}") + endif() - set(OMP_FLAG_GNU "-fopenmp") - set(OMP_FLAG_Clang "-fopenmp=libomp") - set(OMP_FLAG_HP "+Oopenmp") - if(WIN32) - set(OMP_FLAG_Intel "-Qopenmp") - elseif(CMAKE_${LANG}_COMPILER_ID STREQUAL "Intel" AND - "${CMAKE_${LANG}_COMPILER_VERSION}" VERSION_LESS "15.0.0.20140528") - set(OMP_FLAG_Intel "-openmp") + list(APPEND OpenMP_FLAG_CANDIDATES " ") + set(OpenMP_${LANG}_FLAG_CANDIDATES "${OpenMP_FLAG_CANDIDATES}" PARENT_SCOPE) else() - set(OMP_FLAG_Intel "-qopenmp") - endif() - set(OMP_FLAG_MIPSpro "-mp") - set(OMP_FLAG_MSVC "/openmp") - set(OMP_FLAG_PathScale "-openmp") - set(OMP_FLAG_PGI "-mp") - set(OMP_FLAG_SunPro "-xopenmp") - set(OMP_FLAG_XL "-qsmp") - set(OMP_FLAG_Cray " ") - - # Move the flag that matches the compiler to the head of the list, - # this is faster and doesn't clutter the output that much. If that - # flag doesn't work we will still try all. - if(OMP_FLAG_${CMAKE_${LANG}_COMPILER_ID}) - list(REMOVE_ITEM OpenMP_FLAG_CANDIDATES "${OMP_FLAG_${CMAKE_${LANG}_COMPILER_ID}}") - list(INSERT OpenMP_FLAG_CANDIDATES 0 "${OMP_FLAG_${CMAKE_${LANG}_COMPILER_ID}}") + set(OpenMP_${LANG}_FLAG_CANDIDATES "${OpenMP_${LANG}_FLAG}" PARENT_SCOPE) endif() - - set(OpenMP_${LANG}_FLAG_CANDIDATES "${OpenMP_FLAG_CANDIDATES}" PARENT_SCOPE) endfunction() # sample openmp source code to test -set(OpenMP_C_TEST_SOURCE +set(OpenMP_C_CXX_TEST_SOURCE " #include <omp.h> int main() { -#ifdef _OPENMP - return 0; -#else +#ifndef _OPENMP breaks_on_purpose #endif } ") -# same in Fortran +# 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 - use omp_lib - integer :: n + @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(${CMAKE_ROOT}/Modules/CMakeParseImplicitLinkInfo.cmake) + +function(_OPENMP_GET_FLAGS LANG OPENMP_FLAG_VAR OPENMP_LIB_NAMES_VAR) + _OPENMP_FLAG_CANDIDATES("${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() + try_compile( OpenMP_TRY_COMPILE_RESULT ${CMAKE_BINARY_DIR} ${_OPENMP_TEST_SRC} + CMAKE_FLAGS "-DCOMPILE_DEFINITIONS:STRING=${OPENMP_FLAGS_TEST}" + OUTPUT_VARIABLE OpenMP_TRY_COMPILE_OUTPUT + ) + + if(OpenMP_TRY_COMPILE_RESULT) + unset(OpenMP_TRY_COMPILE_RESULT CACHE) + 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) + unset(OpenMP_TRY_COMPILE_RESULT CACHE) + endforeach() +endfunction() set(OpenMP_C_CXX_CHECK_VERSION_SOURCE " @@ -133,17 +236,16 @@ const char ompver_str[] = { 'I', 'N', 'F', 'O', ':', 'O', 'p', 'e', 'n', 'M', ('0' + ((_OPENMP/10)%10)), ('0' + ((_OPENMP/1)%10)), ']', '\\0' }; -int main(int argc, char *argv[]) +int main() { - printf(\"%s\\n\", ompver_str); - return 0; + puts(ompver_str); } ") set(OpenMP_Fortran_CHECK_VERSION_SOURCE " program omp_ver - use omp_lib + @OpenMP_Fortran_INCLUDE_LINE@ integer, parameter :: zero = ichar('0') integer, parameter :: ompv = openmp_version character, dimension(24), parameter :: ompver_str =& @@ -160,20 +262,10 @@ set(OpenMP_Fortran_CHECK_VERSION_SOURCE ") function(_OPENMP_GET_SPEC_DATE LANG SPEC_DATE) - set(WORK_DIR ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/FindOpenMP) - if("${LANG}" STREQUAL "C") - set(SRC_FILE ${WORK_DIR}/ompver.c) - file(WRITE ${SRC_FILE} "${OpenMP_C_CXX_CHECK_VERSION_SOURCE}") - elseif("${LANG}" STREQUAL "CXX") - set(SRC_FILE ${WORK_DIR}/ompver.cpp) - file(WRITE ${SRC_FILE} "${OpenMP_C_CXX_CHECK_VERSION_SOURCE}") - else() # ("${LANG}" STREQUAL "Fortran") - set(SRC_FILE ${WORK_DIR}/ompver.f90) - file(WRITE ${SRC_FILE} "${OpenMP_Fortran_CHECK_VERSION_SOURCE}") - endif() + _OPENMP_WRITE_SOURCE_FILE("${LANG}" "CHECK_VERSION_SOURCE" OpenMPCheckVersion _OPENMP_TEST_SRC) - set(BIN_FILE ${WORK_DIR}/ompver_${LANG}.bin) - try_compile(OpenMP_TRY_COMPILE_RESULT ${CMAKE_BINARY_DIR} ${SRC_FILE} + set(BIN_FILE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/FindOpenMP/ompver_${LANG}.bin") + try_compile(OpenMP_TRY_COMPILE_RESULT "${CMAKE_BINARY_DIR}" "${_OPENMP_TEST_SRC}" CMAKE_FLAGS "-DCOMPILE_DEFINITIONS:STRING=${OpenMP_${LANG}_FLAGS}" COPY_FILE ${BIN_FILE}) @@ -188,144 +280,173 @@ function(_OPENMP_GET_SPEC_DATE LANG SPEC_DATE) unset(OpenMP_TRY_COMPILE_RESULT CACHE) endfunction() +macro(_OPENMP_SET_VERSION_BY_SPEC_DATE LANG) + set(OpenMP_SPEC_DATE_MAP + # Combined versions, 2.5 onwards + "201511=4.5" + "201307=4.0" + "201107=3.1" + "200805=3.0" + "200505=2.5" + # C/C++ version 2.0 + "200203=2.0" + # Fortran version 2.0 + "200011=2.0" + # Fortran version 1.1 + "199911=1.1" + # C/C++ version 1.0 (there's no 1.1 for C/C++) + "199810=1.0" + # Fortran version 1.0 + "199710=1.0" + ) -# check c compiler -if(CMAKE_C_COMPILER_LOADED) - # if these are set then do not try to find them again, - # by avoiding any try_compiles for the flags - if(OpenMP_C_FLAGS) - unset(OpenMP_C_FLAG_CANDIDATES) + string(REGEX MATCHALL "${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() - _OPENMP_FLAG_CANDIDATES("C") - include(${CMAKE_CURRENT_LIST_DIR}/CheckCSourceCompiles.cmake) + unset(OpenMP_${LANG}_VERSION_MAJOR) + unset(OpenMP_${LANG}_VERSION_MINOR) + unset(OpenMP_${LANG}_VERSION) endif() - - foreach(FLAG IN LISTS OpenMP_C_FLAG_CANDIDATES) - set(SAFE_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}") - set(CMAKE_REQUIRED_FLAGS "${FLAG}") - unset(OpenMP_FLAG_DETECTED CACHE) - if(NOT CMAKE_REQUIRED_QUIET) - message(STATUS "Try OpenMP C flag = [${FLAG}]") - endif() - check_c_source_compiles("${OpenMP_C_TEST_SOURCE}" OpenMP_FLAG_DETECTED) - set(CMAKE_REQUIRED_FLAGS "${SAFE_CMAKE_REQUIRED_FLAGS}") - if(OpenMP_FLAG_DETECTED) - set(OpenMP_C_FLAGS_INTERNAL "${FLAG}") - break() + 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}" OpenMP_${LANG}_FLAGS_WORK OpenMP_${LANG}_LIB_NAMES_WORK) endif() - endforeach() - - set(OpenMP_C_FLAGS "${OpenMP_C_FLAGS_INTERNAL}" - CACHE STRING "C compiler flags for OpenMP parallization") - list(APPEND _OPENMP_REQUIRED_VARS OpenMP_C_FLAGS) - unset(OpenMP_C_FLAG_CANDIDATES) - - if (NOT OpenMP_C_SPEC_DATE) - _OPENMP_GET_SPEC_DATE("C" OpenMP_C_SPEC_DATE_INTERNAL) - set(OpenMP_C_SPEC_DATE "${OpenMP_C_SPEC_DATE_INTERNAL}" CACHE - INTERNAL "C compiler's OpenMP specification date") + 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() -endif() +endforeach() -# check cxx compiler -if(CMAKE_CXX_COMPILER_LOADED) - # if these are set then do not try to find them again, - # by avoiding any try_compiles for the flags - if(OpenMP_CXX_FLAGS) - unset(OpenMP_CXX_FLAG_CANDIDATES) - else() - _OPENMP_FLAG_CANDIDATES("CXX") - include(${CMAKE_CURRENT_LIST_DIR}/CheckCXXSourceCompiles.cmake) +if(CMAKE_Fortran_COMPILER_LOADED) + if(NOT DEFINED OpenMP_Fortran_FLAGS OR "${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" 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() - # use the same source for CXX as C for now - set(OpenMP_CXX_TEST_SOURCE ${OpenMP_C_TEST_SOURCE}) + set(OpenMP_Fortran_FLAGS "${OpenMP_Fortran_FLAGS_WORK}" + CACHE STRING "Fortran compiler flags for OpenMP parallelization") + set(OpenMP_Fortran_LIB_NAMES "${OpenMP_Fortran_LIB_NAMES_WORK}" + CACHE STRING "Fortran compiler libraries for OpenMP parallelization") + mark_as_advanced(OpenMP_Fortran_FLAGS OpenMP_Fortran_LIB_NAMES) endif() - foreach(FLAG IN LISTS OpenMP_CXX_FLAG_CANDIDATES) - set(SAFE_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}") - set(CMAKE_REQUIRED_FLAGS "${FLAG}") - unset(OpenMP_FLAG_DETECTED CACHE) - if(NOT CMAKE_REQUIRED_QUIET) - message(STATUS "Try OpenMP CXX flag = [${FLAG}]") - endif() - check_cxx_source_compiles("${OpenMP_CXX_TEST_SOURCE}" OpenMP_FLAG_DETECTED) - set(CMAKE_REQUIRED_FLAGS "${SAFE_CMAKE_REQUIRED_FLAGS}") - if(OpenMP_FLAG_DETECTED) - set(OpenMP_CXX_FLAGS_INTERNAL "${FLAG}") - break() + if(NOT DEFINED OpenMP_Fortran_FLAGS OR "${OpenMP_Fortran_FLAGS}" STREQUAL "NOTFOUND" + OR NOT DEFINED OpenMP_Fortran_LIB_NAMES OR "${OpenMP_Fortran_LIB_NAMES}" STREQUAL "NOTFOUND" + OR NOT DEFINED OpenMP_Fortran_HAVE_OMPLIB_HEADER) + set(OpenMP_Fortran_INCLUDE_LINE "implicit none\n include 'omp_lib.h'") + _OPENMP_GET_FLAGS("Fortran" OpenMP_Fortran_FLAGS_WORK OpenMP_Fortran_LIB_NAMES_WORK) + if(OpenMP_Fortran_FLAGS_WORK) + set(OpenMP_Fortran_HAVE_OMPLIB_HEADER TRUE CACHE BOOL INTERNAL "") endif() - endforeach() - set(OpenMP_CXX_FLAGS "${OpenMP_CXX_FLAGS_INTERNAL}" - CACHE STRING "C++ compiler flags for OpenMP parallization") + set(OpenMP_Fortran_FLAGS "${OpenMP_Fortran_FLAGS_WORK}" + CACHE STRING "Fortran compiler flags for OpenMP parallelization") - list(APPEND _OPENMP_REQUIRED_VARS OpenMP_CXX_FLAGS) - unset(OpenMP_CXX_FLAG_CANDIDATES) - - if (NOT OpenMP_CXX_SPEC_DATE) - _OPENMP_GET_SPEC_DATE("CXX" OpenMP_CXX_SPEC_DATE_INTERNAL) - set(OpenMP_CXX_SPEC_DATE "${OpenMP_CXX_SPEC_DATE_INTERNAL}" CACHE - INTERNAL "C++ compiler's OpenMP specification date") + set(OpenMP_Fortran_LIB_NAMES "${OpenMP_Fortran_LIB_NAMES}" + CACHE STRING "Fortran compiler libraries for OpenMP parallelization") endif() -endif() -# check Fortran compiler -if(CMAKE_Fortran_COMPILER_LOADED) - # if these are set then do not try to find them again, - # by avoiding any try_compiles for the flags - if(OpenMP_Fortran_FLAGS) - unset(OpenMP_Fortran_FLAG_CANDIDATES) + if(OpenMP_Fortran_HAVE_OMPLIB_MODULE) + set(OpenMP_Fortran_INCLUDE_LINE "use omp_lib\n implicit none") else() - _OPENMP_FLAG_CANDIDATES("Fortran") - include(${CMAKE_CURRENT_LIST_DIR}/CheckFortranSourceCompiles.cmake) + set(OpenMP_Fortran_INCLUDE_LINE "implicit none\n include 'omp_lib.h'") endif() +endif() - foreach(FLAG IN LISTS OpenMP_Fortran_FLAG_CANDIDATES) - set(SAFE_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}") - set(CMAKE_REQUIRED_FLAGS "${FLAG}") - unset(OpenMP_FLAG_DETECTED CACHE) - if(NOT CMAKE_REQUIRED_QUIET) - message(STATUS "Try OpenMP Fortran flag = [${FLAG}]") - endif() - check_fortran_source_compiles("${OpenMP_Fortran_TEST_SOURCE}" OpenMP_FLAG_DETECTED) - set(CMAKE_REQUIRED_FLAGS "${SAFE_CMAKE_REQUIRED_FLAGS}") - if(OpenMP_FLAG_DETECTED) - set(OpenMP_Fortran_FLAGS_INTERNAL "${FLAG}") - break() - endif() - endforeach() +set(OPENMP_FOUND TRUE) - set(OpenMP_Fortran_FLAGS "${OpenMP_Fortran_FLAGS_INTERNAL}" - CACHE STRING "Fortran compiler flags for OpenMP parallization") +foreach(LANG IN ITEMS C CXX Fortran) + if(CMAKE_${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() - list(APPEND _OPENMP_REQUIRED_VARS OpenMP_Fortran_FLAGS) - unset(OpenMP_Fortran_FLAG_CANDIDATES) + include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) - if (NOT OpenMP_Fortran_SPEC_DATE) - _OPENMP_GET_SPEC_DATE("Fortran" OpenMP_Fortran_SPEC_DATE_INTERNAL) - set(OpenMP_Fortran_SPEC_DATE "${OpenMP_Fortran_SPEC_DATE_INTERNAL}" CACHE - INTERNAL "Fortran compiler's OpenMP specification date") - endif() -endif() + 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(CMAKE_REQUIRED_QUIET ${CMAKE_REQUIRED_QUIET_SAVE}) - -if(_OPENMP_REQUIRED_VARS) - include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) + 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 - REQUIRED_VARS ${_OPENMP_REQUIRED_VARS}) + find_package_handle_standard_args(OpenMP_${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) + if(CMAKE_HOST_WIN32) + separate_arguments(_OpenMP_${LANG}_OPTIONS WINDOWS_COMMAND "${OpenMP_${LANG}_FLAGS}") + else() + separate_arguments(_OpenMP_${LANG}_OPTIONS UNIX_COMMAND "${OpenMP_${LANG}_FLAGS}") + endif() + 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() - mark_as_advanced(${_OPENMP_REQUIRED_VARS}) +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() - unset(_OPENMP_REQUIRED_VARS) -else() - message(SEND_ERROR "FindOpenMP requires C or CXX language to be enabled") +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_TEST_SOURCE) -unset(OpenMP_CXX_TEST_SOURCE) +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) |