Merge branch 'irsl-msvc-omp-fix' into release-3.10
Merge-request: !1588
diff --git a/Modules/FindMPI.cmake b/Modules/FindMPI.cmake
index 0a011af..22493f6 100644
--- a/Modules/FindMPI.cmake
+++ b/Modules/FindMPI.cmake
@@ -602,9 +602,6 @@
if(MPI_DIRECT_LIB_NAMES_WORK)
set(MPI_PLAIN_LIB_NAMES_WORK "${MPI_DIRECT_LIB_NAMES_WORK};${MPI_PLAIN_LIB_NAMES_WORK}")
endif()
- if(MPI_${LANG}_EXTRA_LIB_NAMES)
- list(APPEND MPI_PLAIN_LIB_NAMES_WORK "${MPI_${LANG}_EXTRA_LIB_NAMES}")
- endif()
# MPI might require pthread to work. The above mechanism wouldn't detect it, but we need to
# link it in that case. -lpthread is covered by the normal library treatment on the other hand.
@@ -617,6 +614,16 @@
endif()
endif()
+ if(MPI_${LANG}_EXTRA_COMPILE_DEFINITIONS)
+ list(APPEND MPI_COMPILE_DEFINITIONS_WORK "${MPI_${LANG}_EXTRA_COMPILE_DEFINITIONS}")
+ endif()
+ if(MPI_${LANG}_EXTRA_COMPILE_OPTIONS)
+ list(APPEND MPI_COMPILE_OPTIONS_WORK "${MPI_${LANG}_EXTRA_COMPILE_OPTIONS}")
+ endif()
+ if(MPI_${LANG}_EXTRA_LIB_NAMES)
+ list(APPEND MPI_PLAIN_LIB_NAMES_WORK "${MPI_${LANG}_EXTRA_LIB_NAMES}")
+ endif()
+
# If we found MPI, set up all of the appropriate cache entries
if(NOT MPI_${LANG}_COMPILE_OPTIONS)
set(MPI_${LANG}_COMPILE_OPTIONS ${MPI_COMPILE_OPTIONS_WORK} CACHE STRING "MPI ${LANG} compilation options" FORCE)
@@ -825,33 +832,43 @@
macro(_MPI_assemble_libraries LANG)
set(MPI_${LANG}_LIBRARIES "")
- foreach(mpilib IN LISTS MPI_${LANG}_LIB_NAMES)
- list(APPEND MPI_${LANG}_LIBRARIES ${MPI_${mpilib}_LIBRARY})
- endforeach()
-endmacro()
-
-macro(_MPI_assemble_include_dirs LANG)
- set(MPI_${LANG}_INCLUDE_DIRS "${MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS}")
- if("${LANG}" MATCHES "(C|CXX)")
- if(MPI_${LANG}_HEADER_DIR)
- list(APPEND MPI_${LANG}_INCLUDE_DIRS "${MPI_${LANG}_HEADER_DIR}")
- endif()
- else() # Fortran
- if(MPI_${LANG}_F77_HEADER_DIR)
- list(APPEND MPI_${LANG}_INCLUDE_DIRS "${MPI_${LANG}_F77_HEADER_DIR}")
- endif()
- if(MPI_${LANG}_MODULE_DIR AND NOT "${MPI_${LANG}_MODULE_DIR}" IN_LIST MPI_${LANG}_INCLUDE_DIRS)
- list(APPEND MPI_${LANG}_INCLUDE_DIRS "${MPI_${LANG}_MODULE_DIR}")
- endif()
- endif()
- if(MPI_${LANG}_ADDITIONAL_INCLUDE_VARS)
- foreach(mpiadditionalinclude IN LISTS MPI_${LANG}_ADDITIONAL_INCLUDE_VARS)
- list(APPEND MPI_${LANG}_INCLUDE_DIRS "${MPI_${mpiadditionalinclude}_INCLUDE_DIR}")
+ # Only for libraries do we need to check whether the compiler's linking stage is separate.
+ if(NOT "${MPI_${LANG}_COMPILER}" STREQUAL "${CMAKE_${LANG}_COMPILER}" OR NOT MPI_${LANG}_WORKS_IMPLICIT)
+ foreach(mpilib IN LISTS MPI_${LANG}_LIB_NAMES)
+ list(APPEND MPI_${LANG}_LIBRARIES ${MPI_${mpilib}_LIBRARY})
endforeach()
endif()
endmacro()
+macro(_MPI_assemble_include_dirs LANG)
+ if("${MPI_${LANG}_COMPILER}" STREQUAL "${CMAKE_${LANG}_COMPILER}")
+ set(MPI_${LANG}_INCLUDE_DIRS "")
+ else()
+ set(MPI_${LANG}_INCLUDE_DIRS "${MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS}")
+ if("${LANG}" MATCHES "(C|CXX)")
+ if(MPI_${LANG}_HEADER_DIR)
+ list(APPEND MPI_${LANG}_INCLUDE_DIRS "${MPI_${LANG}_HEADER_DIR}")
+ endif()
+ else() # Fortran
+ if(MPI_${LANG}_F77_HEADER_DIR)
+ list(APPEND MPI_${LANG}_INCLUDE_DIRS "${MPI_${LANG}_F77_HEADER_DIR}")
+ endif()
+ if(MPI_${LANG}_MODULE_DIR AND NOT "${MPI_${LANG}_MODULE_DIR}" IN_LIST MPI_${LANG}_INCLUDE_DIRS)
+ list(APPEND MPI_${LANG}_INCLUDE_DIRS "${MPI_${LANG}_MODULE_DIR}")
+ endif()
+ endif()
+ if(MPI_${LANG}_ADDITIONAL_INCLUDE_VARS)
+ foreach(MPI_ADDITIONAL_INC_DIR IN LISTS MPI_${LANG}_ADDITIONAL_INCLUDE_VARS)
+ list(APPEND MPI_${LANG}_INCLUDE_DIRS "${MPI_${MPI_ADDITIONAL_INC_DIR}_INCLUDE_DIR}")
+ endforeach()
+ endif()
+ endif()
+endmacro()
+
function(_MPI_split_include_dirs LANG)
+ if("${MPI_${LANG}_COMPILER}" STREQUAL "${CMAKE_${LANG}_COMPILER}")
+ return()
+ endif()
# Backwards compatibility: Search INCLUDE_PATH if given.
if(MPI_${LANG}_INCLUDE_PATH)
list(APPEND MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS "${MPI_${LANG}_INCLUDE_PATH}")
@@ -887,6 +904,13 @@
endif()
mark_as_advanced(MPI_${LANG}_F77_HEADER_DIR MPI_${LANG}_MODULE_DIR)
endif()
+ # Remove duplicates and default system directories from the list.
+ if(MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS)
+ list(REMOVE_DUPLICATES MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS)
+ foreach(MPI_IMPLICIT_INC_DIR IN LISTS CMAKE_${LANG}_IMPLICIT_LINK_DIRECTORIES)
+ list(REMOVE_ITEM MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS ${MPI_IMPLICIT_INC_DIR})
+ endforeach()
+ endif()
set(MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS ${MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS} CACHE STRING "MPI ${LANG} additional include directories" FORCE)
endfunction()
@@ -1016,7 +1040,7 @@
elseif("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "FreeBSD")
# FreeBSD ships mpich under the normal system paths - but available openmpi implementations
# will be found in /usr/local/mpi/<name>
- MPI_search_mpi_prefix_folder("/usr/local/mpi/")
+ MPI_search_mpi_prefix_folder("/usr/local/mpi")
endif()
# Most MPI distributions have some form of mpiexec or mpirun which gives us something we can look for.
@@ -1052,51 +1076,54 @@
#
# Once we find the new variables, we translate them back into their old
# equivalents below.
-foreach (LANG IN ITEMS C CXX)
- # Old input variables.
- set(_MPI_OLD_INPUT_VARS COMPILER COMPILE_FLAGS INCLUDE_PATH LINK_FLAGS)
+if(NOT MPI_IGNORE_LEGACY_VARIABLES)
+ foreach (LANG IN ITEMS C CXX)
+ # Old input variables.
+ set(_MPI_OLD_INPUT_VARS COMPILER COMPILE_FLAGS INCLUDE_PATH LINK_FLAGS)
- # Set new vars based on their old equivalents, if the new versions are not already set.
- foreach (var ${_MPI_OLD_INPUT_VARS})
- if (NOT MPI_${LANG}_${var} AND MPI_${var})
- set(MPI_${LANG}_${var} "${MPI_${var}}")
+ # Set new vars based on their old equivalents, if the new versions are not already set.
+ foreach (var ${_MPI_OLD_INPUT_VARS})
+ if (NOT MPI_${LANG}_${var} AND MPI_${var})
+ set(MPI_${LANG}_${var} "${MPI_${var}}")
+ endif()
+ endforeach()
+
+ # Chop the old compile flags into options and definitions
+
+ unset(MPI_${LANG}_EXTRA_COMPILE_DEFINITIONS)
+ unset(MPI_${LANG}_EXTRA_COMPILE_OPTIONS)
+ if(MPI_${LANG}_COMPILE_FLAGS)
+ separate_arguments(MPI_SEPARATE_FLAGS NATIVE_COMMAND "${MPI_${LANG}_COMPILE_FLAGS}")
+ foreach(_MPI_FLAG IN LISTS MPI_SEPARATE_FLAGS)
+ if("${_MPI_FLAG}" MATCHES "^ *[-/D]([^ ]+)")
+ list(APPEND MPI_${LANG}_EXTRA_COMPILE_DEFINITIONS "${CMAKE_MATCH_1}")
+ else()
+ list(APPEND MPI_${LANG}_EXTRA_COMPILE_OPTIONS "${_MPI_FLAG}")
+ endif()
+ endforeach()
+ unset(MPI_SEPARATE_FLAGS)
+ endif()
+
+ # If a list of libraries was given, we'll split it into new-style cache variables
+ unset(MPI_${LANG}_EXTRA_LIB_NAMES)
+ if(NOT MPI_${LANG}_LIB_NAMES)
+ foreach(_MPI_LIB IN LISTS MPI_${LANG}_LIBRARIES MPI_LIBRARY MPI_EXTRA_LIBRARY)
+ if(_MPI_LIB)
+ get_filename_component(_MPI_PLAIN_LIB_NAME "${_MPI_LIB}" NAME_WE)
+ get_filename_component(_MPI_LIB_NAME "${_MPI_LIB}" NAME)
+ get_filename_component(_MPI_LIB_DIR "${_MPI_LIB}" DIRECTORY)
+ list(APPEND MPI_${LANG}_EXTRA_LIB_NAMES "${_MPI_PLAIN_LIB_NAME}")
+ find_library(MPI_${_MPI_PLAIN_LIB_NAME}_LIBRARY
+ NAMES "${_MPI_LIB_NAME}" "lib${_MPI_LIB_NAME}"
+ HINTS ${_MPI_LIB_DIR} $ENV{MPI_LIB}
+ DOC "Location of the ${_MPI_PLAIN_LIB_NAME} library for MPI"
+ )
+ mark_as_advanced(MPI_${_MPI_PLAIN_LIB_NAME}_LIBRARY)
+ endif()
+ endforeach()
endif()
endforeach()
-
- # Chop the old compile flags into options and definitions
- if(MPI_${LANG}_COMPILE_FLAGS)
- unset(MPI_${LANG}_COMPILE_OPTIONS)
- unset(MPI_${LANG}_COMPILE_DEFINITIONS)
- separate_arguments(MPI_SEPARATE_FLAGS NATIVE_COMMAND "${MPI_${LANG}_COMPILE_FLAGS}")
- foreach(_MPI_FLAG IN LISTS MPI_SEPARATE_FLAGS)
- if("${_MPI_FLAG}" MATCHES "^ *[-/D]([^ ]+)")
- list(APPEND MPI_${LANG}_COMPILE_DEFINITIONS "${CMAKE_MATCH_1}")
- else()
- list(APPEND MPI_${LANG}_COMPILE_FLAGS "${_MPI_FLAG}")
- endif()
- endforeach()
- unset(MPI_SEPARATE_FLAGS)
- endif()
-
- # If a list of libraries was given, we'll split it into new-style cache variables
- unset(MPI_${LANG}_EXTRA_LIB_NAMES)
- if(NOT MPI_${LANG}_LIB_NAMES)
- foreach(_MPI_LIB IN LISTS MPI_${LANG}_LIBRARIES MPI_LIBRARY MPI_EXTRA_LIBRARY)
- if(_MPI_LIB)
- get_filename_component(_MPI_PLAIN_LIB_NAME "${_MPI_LIB}" NAME_WE)
- get_filename_component(_MPI_LIB_NAME "${_MPI_LIB}" NAME)
- get_filename_component(_MPI_LIB_DIR "${_MPI_LIB}" DIRECTORY)
- list(APPEND MPI_${LANG}_EXTRA_LIB_NAMES "${_MPI_PLAIN_LIB_NAME}")
- find_library(MPI_${_MPI_PLAIN_LIB_NAME}_LIBRARY
- NAMES "${_MPI_LIB_NAME}" "lib${_MPI_LIB_NAME}"
- HINTS ${_MPI_LIB_DIR} $ENV{MPI_LIB}
- DOC "Location of the ${_MPI_PLAIN_LIB_NAME} library for MPI"
- )
- mark_as_advanced(MPI_${_MPI_PLAIN_LIB_NAME}_LIBRARY)
- endif()
- endforeach()
- endif()
-endforeach()
+endif()
#=============================================================================
unset(MPI_VERSION)
@@ -1105,6 +1132,11 @@
unset(_MPI_MIN_VERSION)
+# If the user specified a library name we assume they prefer that library over a wrapper. If not, they can disable skipping manually.
+if(NOT DEFINED MPI_SKIP_COMPILER_WRAPPER AND MPI_GUESS_LIBRARY_NAME)
+ set(MPI_SKIP_COMPILER_WRAPPER TRUE)
+endif()
+
# This loop finds the compilers and sends them off for interrogation.
foreach(LANG IN ITEMS C CXX Fortran)
if(CMAKE_${LANG}_COMPILER_LOADED)
@@ -1126,6 +1158,8 @@
mark_as_advanced(MPI_CXX_SKIP_MPICXX)
endif()
if(NOT (MPI_${LANG}_LIB_NAMES AND (MPI_${LANG}_INCLUDE_PATH OR MPI_${LANG}_INCLUDE_DIRS OR MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS)))
+ set(MPI_${LANG}_TRIED_IMPLICIT FALSE)
+ set(MPI_${LANG}_WORKS_IMPLICIT FALSE)
if(NOT MPI_${LANG}_COMPILER AND NOT MPI_ASSUME_NO_BUILTIN_MPI)
# Should the imported targets be empty, we effectively try whether the compiler supports MPI on its own, which is the case on e.g.
# Cray PrgEnv.
@@ -1135,80 +1169,90 @@
# If the compiler can build MPI code on its own, it functions as an MPI compiler and we'll set the variable to point to it.
if(MPI_${LANG}_WORKS)
set(MPI_${LANG}_COMPILER "${CMAKE_${LANG}_COMPILER}" CACHE FILEPATH "MPI compiler for ${LANG}" FORCE)
+ set(MPI_${LANG}_WORKS_IMPLICIT TRUE)
endif()
+ set(MPI_${LANG}_TRIED_IMPLICIT TRUE)
endif()
- # If the user specified a library name we assume they prefer that library over a wrapper. If not, they can disable skipping manually.
- if(NOT DEFINED MPI_SKIP_COMPILER_WRAPPER AND MPI_GUESS_LIBRARY_NAME)
- set(MPI_SKIP_COMPILER_WRAPPER TRUE)
- endif()
- if(NOT MPI_SKIP_COMPILER_WRAPPER)
- if(MPI_${LANG}_COMPILER)
- # If the user supplies a compiler *name* instead of an absolute path, assume that we need to find THAT compiler.
- if (NOT IS_ABSOLUTE "${MPI_${LANG}_COMPILER}")
- # Get rid of our default list of names and just search for the name the user wants.
- set(_MPI_${LANG}_COMPILER_NAMES "${MPI_${LANG}_COMPILER}")
- unset(MPI_${LANG}_COMPILER CACHE)
+ if(NOT "${MPI_${LANG}_COMPILER}" STREQUAL "${CMAKE_${LANG}_COMPILER}" OR NOT MPI_${LANG}_WORKS)
+ set(MPI_${LANG}_WRAPPER_FOUND FALSE)
+ set(MPI_PINNED_COMPILER FALSE)
+
+ if(NOT MPI_SKIP_COMPILER_WRAPPER)
+ if(MPI_${LANG}_COMPILER)
+ # If the user supplies a compiler *name* instead of an absolute path, assume that we need to find THAT compiler.
+ if (NOT IS_ABSOLUTE "${MPI_${LANG}_COMPILER}")
+ # Get rid of our default list of names and just search for the name the user wants.
+ set(_MPI_${LANG}_COMPILER_NAMES "${MPI_${LANG}_COMPILER}")
+ unset(MPI_${LANG}_COMPILER CACHE)
+ endif()
+ # If the user specifies a compiler, we don't want to try to search libraries either.
+ set(MPI_PINNED_COMPILER TRUE)
endif()
- # If the user specifies a compiler, we don't want to try to search libraries either.
- set(MPI_PINNED_COMPILER TRUE)
- else()
- set(MPI_PINNED_COMPILER FALSE)
- endif()
- # If we have an MPI base directory, we'll try all compiler names in that one first.
- # This should prevent mixing different MPI environments
- if(_MPI_BASE_DIR)
+ # If we have an MPI base directory, we'll try all compiler names in that one first.
+ # This should prevent mixing different MPI environments
+ if(_MPI_BASE_DIR)
+ find_program(MPI_${LANG}_COMPILER
+ NAMES ${_MPI_${LANG}_COMPILER_NAMES}
+ PATH_SUFFIXES bin sbin
+ HINTS ${_MPI_BASE_DIR}
+ NO_DEFAULT_PATH
+ DOC "MPI compiler for ${LANG}"
+ )
+ endif()
+
+ # If the base directory did not help (for example because the mpiexec isn't in the same directory as the compilers),
+ # we shall try searching in the default paths.
find_program(MPI_${LANG}_COMPILER
NAMES ${_MPI_${LANG}_COMPILER_NAMES}
PATH_SUFFIXES bin sbin
- HINTS ${_MPI_BASE_DIR}
- NO_DEFAULT_PATH
DOC "MPI compiler for ${LANG}"
)
+
+ if("${MPI_${LANG}_COMPILER}" STREQUAL "${CMAKE_${LANG}_COMPILER}")
+ set(MPI_PINNED_COMPILER TRUE)
+
+ # If we haven't made the implicit compiler test yet, perform it now.
+ if(NOT MPI_${LANG}_TRIED_IMPLICIT)
+ _MPI_create_imported_target(${LANG})
+ _MPI_check_lang_works(${LANG})
+ endif()
+
+ # Should the MPI compiler not work implicitly for MPI, still interrogate it.
+ # Otherwise, MPI compilers for which CMake has separate linking stages, e.g. Intel MPI on Windows where link.exe is being used
+ # directly during linkage instead of CMAKE_<LANG>_COMPILER will not work.
+ if(NOT MPI_${LANG}_WORKS)
+ set(MPI_${LANG}_WORKS_IMPLICIT FALSE)
+ _MPI_interrogate_compiler(${LANG})
+ else()
+ set(MPI_${LANG}_WORKS_IMPLICIT TRUE)
+ endif()
+ elseif(MPI_${LANG}_COMPILER)
+ _MPI_interrogate_compiler(${LANG})
+ endif()
endif()
- # If the base directory did not help (for example because the mpiexec isn't in the same directory as the compilers),
- # we shall try searching in the default paths.
- find_program(MPI_${LANG}_COMPILER
- NAMES ${_MPI_${LANG}_COMPILER_NAMES}
- PATH_SUFFIXES bin sbin
- DOC "MPI compiler for ${LANG}"
- )
-
- if(MPI_${LANG}_COMPILER STREQUAL CMAKE_${LANG}_COMPILER)
- set(MPI_SKIP_GUESSING TRUE)
- elseif(MPI_${LANG}_COMPILER)
- _MPI_interrogate_compiler(${LANG})
- else()
- set(MPI_${LANG}_WRAPPER_FOUND FALSE)
- endif()
- else()
- set(MPI_${LANG}_WRAPPER_FOUND FALSE)
- set(MPI_PINNED_COMPILER FALSE)
- endif()
-
- if(NOT MPI_${LANG}_WRAPPER_FOUND AND NOT MPI_PINNED_COMPILER)
- # For C++, we may use the settings for C. Should a given compiler wrapper for C++ not exist, but one for C does, we copy over the
- # settings for C. An MPI distribution that is in this situation would be IBM Platform MPI.
- if("${LANG}" STREQUAL "CXX" AND MPI_C_WRAPPER_FOUND)
- set(MPI_${LANG}_COMPILE_OPTIONS ${MPI_C_COMPILE_OPTIONS} CACHE STRING "MPI ${LANG} compilation options" )
- set(MPI_${LANG}_COMPILE_DEFINITIONS ${MPI_C_COMPILE_DEFINITIONS} CACHE STRING "MPI ${LANG} compilation definitions" )
- set(MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS ${MPI_C_INCLUDE_DIRS} CACHE STRING "MPI ${LANG} additional include directories")
- set(MPI_${LANG}_LINK_FLAGS ${MPI_C_LINK_FLAGS} CACHE STRING "MPI ${LANG} linker flags" )
- set(MPI_${LANG}_LIB_NAMES ${MPI_C_LIB_NAMES} CACHE STRING "MPI ${LANG} libraries to link against" )
- set(MPI_${LANG}_WRAPPER_FOUND TRUE)
- elseif(NOT MPI_SKIP_GUESSING)
- _MPI_guess_settings(${LANG})
+ if(NOT MPI_SKIP_GUESSING AND NOT MPI_${LANG}_WRAPPER_FOUND AND NOT MPI_PINNED_COMPILER)
+ # For C++, we may use the settings for C. Should a given compiler wrapper for C++ not exist, but one for C does, we copy over the
+ # settings for C. An MPI distribution that is in this situation would be IBM Platform MPI.
+ if("${LANG}" STREQUAL "CXX" AND MPI_C_WRAPPER_FOUND)
+ set(MPI_${LANG}_COMPILE_OPTIONS ${MPI_C_COMPILE_OPTIONS} CACHE STRING "MPI ${LANG} compilation options" )
+ set(MPI_${LANG}_COMPILE_DEFINITIONS ${MPI_C_COMPILE_DEFINITIONS} CACHE STRING "MPI ${LANG} compilation definitions" )
+ set(MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS ${MPI_C_INCLUDE_DIRS} CACHE STRING "MPI ${LANG} additional include directories")
+ set(MPI_${LANG}_LINK_FLAGS ${MPI_C_LINK_FLAGS} CACHE STRING "MPI ${LANG} linker flags" )
+ set(MPI_${LANG}_LIB_NAMES ${MPI_C_LIB_NAMES} CACHE STRING "MPI ${LANG} libraries to link against" )
+ else()
+ _MPI_guess_settings(${LANG})
+ endif()
endif()
endif()
endif()
_MPI_split_include_dirs(${LANG})
- if(NOT MPI_${LANG}_COMPILER STREQUAL CMAKE_${LANG}_COMPILER)
- _MPI_assemble_include_dirs(${LANG})
- _MPI_assemble_libraries(${LANG})
- endif()
+ _MPI_assemble_include_dirs(${LANG})
+ _MPI_assemble_libraries(${LANG})
+
_MPI_adjust_compile_definitions(${LANG})
# We always create imported targets even if they're empty
_MPI_create_imported_target(${LANG})
@@ -1222,7 +1266,9 @@
set(MPI_${LANG}_COMPILE_DEFINITIONS "" CACHE STRING "MPI ${LANG} compilation definitions" )
set(MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS "" CACHE STRING "MPI ${LANG} additional include directories")
set(MPI_${LANG}_LINK_FLAGS "" CACHE STRING "MPI ${LANG} linker flags" )
- set(MPI_${LANG}_LIB_NAMES "" CACHE STRING "MPI ${LANG} libraries to link against" )
+ if(NOT MPI_${LANG}_COMPILER STREQUAL CMAKE_${LANG}_COMPILER)
+ set(MPI_${LANG}_LIB_NAMES "" CACHE STRING "MPI ${LANG} libraries to link against" )
+ endif()
mark_as_advanced(MPI_${LANG}_COMPILE_OPTIONS MPI_${LANG}_COMPILE_DEFINITIONS MPI_${LANG}_LINK_FLAGS
MPI_${LANG}_LIB_NAMES MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS MPI_${LANG}_COMPILER)
@@ -1453,6 +1499,7 @@
else()
set(MPI_EXTRA_LIBRARY "MPI_EXTRA_LIBRARY-NOTFOUND")
endif()
+set(MPI_IGNORE_LEGACY_VARIABLES TRUE)
#=============================================================================
# unset these vars to cleanup namespace
