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Merge topic 'mpi-cross'

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0723b2c935 MPI: Add fallback detection code for MPI when cross compiling

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !6537
This commit is contained in:
Brad King
2021-09-24 13:14:45 +00:00
committed by Kitware Robot
parent 6e6ad6e02e 0723b2c935
commit 4e23745093
1 changed files with 35 additions and 1 deletions
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36
Modules/FindMPI.cmake
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@@ -267,6 +267,7 @@ cmake_policy(PUSH)
cmake_policy(SET CMP0057 NEW) # if IN_LIST
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
include(${CMAKE_CURRENT_LIST_DIR}/FindPkgConfig.cmake)
# Generic compiler names
set(_MPI_C_GENERIC_COMPILER_NAMES mpicc mpcc mpicc_r mpcc_r)
@@ -1572,7 +1573,40 @@ foreach(LANG IN ITEMS C CXX Fortran)
if(NOT MPI_PINNED_COMPILER AND NOT MPI_${LANG}_WRAPPER_FOUND)
# If MPI_PINNED_COMPILER wasn't given, and the MPI compiler we potentially found didn't work, we withdraw it.
set(MPI_${LANG}_COMPILER "MPI_${LANG}_COMPILER-NOTFOUND" CACHE FILEPATH "MPI compiler for ${LANG}" FORCE)
if(NOT MPI_SKIP_GUESSING)
if(LANG STREQUAL "C")
set(_MPI_PKG "mpi-c")
elseif(LANG STREQUAL "CXX")
set(_MPI_PKG "mpi-cxx")
elseif(LANG STREQUAL "Fortran")
set(_MPI_PKG "mpi-fort")
else()
set(_MPI_PKG "")
endif()
if(_MPI_PKG)
pkg_check_modules("MPI_${LANG}_PKG" "${_MPI_PKG}")
if("${MPI_${LANG}_PKG_FOUND}")
set(MPI_${LANG}_COMPILE_OPTIONS ${MPI_${LANG}_PKG_CFLAGS} CACHE STRING "MPI ${LANG} compilation options" FORCE)
set(MPI_${LANG}_INCLUDE_PATH ${MPI_${LANG}_PKG_INCLUDE_DIRS} CACHE STRING "MPI ${LANG} include directories" FORCE)
set(MPI_${LANG}_LINK_FLAGS ${MPI_${LANG}_PKG_LDFLAGS} CACHE STRING "MPI ${LANG} linker flags" FORCE)
set(MPI_${LANG}_LIB_NAMES ${MPI_${LANG}_PKG_LIBRARIES} CACHE STRING "MPI ${LANG} libraries to link against" FORCE)
foreach(_MPI_LIB IN LISTS MPI_${LANG}_LIB_NAMES)
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 "${_MPI_LIB}" DIRECTORY)
find_library(MPI_${_MPI_PLAIN_LIB_NAME}_LIBRARY
NAMES "${_MPI_LIB_NAME}" "lib${_MPI_LIB_NAME}"
HINTS ${_MPI_LIB_DIR}
DOC "Location of the ${_MPI_PLAIN_LIB_NAME} library for MPI"
)
mark_as_advanced(MPI_${_MPI_PLAIN_LIB_NAME}_LIBRARY)
endif()
endforeach()
endif()
endif()
if(NOT MPI_SKIP_GUESSING AND NOT "${MPI_${LANG}_PKG_FOUND}")
# 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)