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63 lines
3.2 KiB
63 lines
3.2 KiB
3 years ago
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From: =?utf-8?q?Timo_R=C3=B6hling?= <roehling@debian.org>
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Date: Tue, 14 Sep 2021 17:04:48 +0200
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Subject: Fix cross compilation with MPI
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---
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Modules/FindMPI.cmake | 36 +++++++++++++++++++++++++++++++++++-
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1 file changed, 35 insertions(+), 1 deletion(-)
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diff --git a/Modules/FindMPI.cmake b/Modules/FindMPI.cmake
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index d8f0334..f7faa54 100644
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--- a/Modules/FindMPI.cmake
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+++ b/Modules/FindMPI.cmake
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@@ -267,6 +267,7 @@ cmake_policy(PUSH)
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cmake_policy(SET CMP0057 NEW) # if IN_LIST
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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+include(${CMAKE_CURRENT_LIST_DIR}/FindPkgConfig.cmake)
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# Generic compiler names
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set(_MPI_C_GENERIC_COMPILER_NAMES mpicc mpcc mpicc_r mpcc_r)
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@@ -1523,7 +1524,40 @@ foreach(LANG IN ITEMS C CXX Fortran)
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if(NOT MPI_PINNED_COMPILER AND NOT MPI_${LANG}_WRAPPER_FOUND)
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# If MPI_PINNED_COMPILER wasn't given, and the MPI compiler we potentially found didn't work, we withdraw it.
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set(MPI_${LANG}_COMPILER "MPI_${LANG}_COMPILER-NOTFOUND" CACHE FILEPATH "MPI compiler for ${LANG}" FORCE)
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- if(NOT MPI_SKIP_GUESSING)
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+
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+ if(LANG STREQUAL "C")
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+ set(_MPI_PKG "mpi-c")
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+ elseif(LANG STREQUAL "CXX")
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+ set(_MPI_PKG "mpi-cxx")
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+ elseif(LANG STREQUAL "Fortran")
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+ set(_MPI_PKG "mpi-fort")
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+ else()
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+ set(_MPI_PKG "")
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+ endif()
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+ if(_MPI_PKG)
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+ pkg_check_modules("MPI_${LANG}_PKG" "${_MPI_PKG}")
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+ if("${MPI_${LANG}_PKG_FOUND}")
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+ set(MPI_${LANG}_COMPILE_OPTIONS ${MPI_${LANG}_PKG_CFLAGS} CACHE STRING "MPI ${LANG} compilation options" FORCE)
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+ set(MPI_${LANG}_INCLUDE_PATH ${MPI_${LANG}_PKG_INCLUDE_DIRS} CACHE STRING "MPI ${LANG} include directories" FORCE)
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+ set(MPI_${LANG}_LINK_FLAGS ${MPI_${LANG}_PKG_LDFLAGS} CACHE STRING "MPI ${LANG} linker flags" FORCE)
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+ set(MPI_${LANG}_LIB_NAMES ${MPI_${LANG}_PKG_LIBRARIES} CACHE STRING "MPI ${LANG} libraries to link against" FORCE)
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+ foreach(_MPI_LIB IN LISTS MPI_${LANG}_LIB_NAMES)
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+ if(_MPI_LIB)
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+ get_filename_component(_MPI_PLAIN_LIB_NAME "${_MPI_LIB}" NAME_WE)
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+ get_filename_component(_MPI_LIB_NAME "${_MPI_LIB}" NAME)
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+ get_filename_component(_MPI_LIB_DIR "${_MPI_LIB}" DIRECTORY)
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+ find_library(MPI_${_MPI_PLAIN_LIB_NAME}_LIBRARY
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+ NAMES "${_MPI_LIB_NAME}" "lib${_MPI_LIB_NAME}"
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+ HINTS ${_MPI_LIB_DIR}
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+ DOC "Location of the ${_MPI_PLAIN_LIB_NAME} library for MPI"
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+ )
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+ mark_as_advanced(MPI_${_MPI_PLAIN_LIB_NAME}_LIBRARY)
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+ endif()
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+ endforeach()
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+ endif()
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+ endif()
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+
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+ if(NOT MPI_SKIP_GUESSING AND NOT "${MPI_${LANG}_PKG_FOUND}")
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# 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
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# settings for C. An MPI distribution that is in this situation would be IBM Platform MPI.
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if("${LANG}" STREQUAL "CXX" AND MPI_C_WRAPPER_FOUND)
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