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FindBoost: Search next to MPI libraries for boost_mpi (#14739) 

Some distributions place boost_mpi next to the MPI libraries against
which it was built instead of next to the other Boost libraries.  If
find_package(MPI) has already been run prior to find_package(Boost) then
MPI_CXX_LIBRARIES or MPI_C_LIBRARIES may be set to the location of the
MPI libraries.  Teach FindBoost.cmake to look there for boost_mpi and
boost_mpi_python after looking next to the other Boost libraries but
not consider the location to be Boost_LIBRARY_DIR.
This commit is contained in:
Brad King 2014-02-07 16:45:10 -05:00
parent 6abdc6c16a
commit a22eeca3fd
1 changed files with 31 additions and 4 deletions
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35
Modules/FindBoost.cmake
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@ -305,10 +305,15 @@ endmacro()
macro(_Boost_FIND_LIBRARY var)
find_library(${var} ${ARGN})
# If we found the first library save Boost_LIBRARY_DIR.
if(${var} AND NOT Boost_LIBRARY_DIR)
get_filename_component(_dir "${${var}}" PATH)
set(Boost_LIBRARY_DIR "${_dir}" CACHE PATH "Boost library directory" FORCE)
if(${var})
# If this is the first library found then save Boost_LIBRARY_DIR.
if(NOT Boost_LIBRARY_DIR)
get_filename_component(_dir "${${var}}" PATH)
set(Boost_LIBRARY_DIR "${_dir}" CACHE PATH "Boost library directory" FORCE)
endif()
elseif(_Boost_FIND_LIBRARY_HINTS_FOR_COMPONENT)
# Try component-specific hints but do not save Boost_LIBRARY_DIR.
find_library(${var} HINTS ${_Boost_FIND_LIBRARY_HINTS_FOR_COMPONENT} ${ARGN})
endif()
# If Boost_LIBRARY_DIR is known then search only there.
@ -935,6 +940,28 @@ foreach(COMPONENT ${Boost_FIND_COMPONENTS})
set( _boost_docstring_release "Boost ${COMPONENT} library (release)")
set( _boost_docstring_debug "Boost ${COMPONENT} library (debug)")
# Compute component-specific hints.
set(_Boost_FIND_LIBRARY_HINTS_FOR_COMPONENT "")
if(${COMPONENT} STREQUAL "mpi" OR ${COMPONENT} STREQUAL "mpi_python")
foreach(lib ${MPI_CXX_LIBRARIES} ${MPI_C_LIBRARIES})
if(IS_ABSOLUTE "${lib}")
get_filename_component(libdir "${lib}" PATH)
string(REPLACE "\\" "/" libdir "${libdir}")
list(APPEND _Boost_FIND_LIBRARY_HINTS_FOR_COMPONENT ${libdir})
endif()
endforeach()
endif()
# Consolidate and report component-specific hints.
if(_Boost_FIND_LIBRARY_HINTS_FOR_COMPONENT)
list(REMOVE_DUPLICATES _Boost_FIND_LIBRARY_HINTS_FOR_COMPONENT)
if(Boost_DEBUG)
message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
"Component-specific library search paths for ${COMPONENT}: "
"${_Boost_FIND_LIBRARY_HINTS_FOR_COMPONENT}")
endif()
endif()
#
# Find RELEASE libraries
#