[CMake] RPATH for pkg-config

Thu Jan 4 12:13:18 EST 2018

not working with the last cmakelist I have which is: 

>> more ../CMakeLists.txt 
cmake_minimum_required(VERSION 3.7) 
enable_language(CXX) 

find_package(MPI REQUIRED) 
find_package(PkgConfig REQUIRED) # Get pkg_check_modules. 
pkg_check_modules(PETSc REQUIRED PETSc) 

project(main) 
add_executable(main main.cpp) 

target_include_directories(main PUBLIC ${MPI_CXX_INCLUDE_PATH}) 
target_link_libraries(main PUBLIC ${MPI_CXX_LIBRARIES}) 

target_include_directories(main PUBLIC ${PETSc_INCLUDE_DIRS}) 
foreach(lib ${PETSc_LDFLAGS}) 
target_link_libraries(main PUBLIC ${lib}) 
message("target_link_libraries - lib is ${lib}") 
endforeach(lib) 

# use, i.e. don't skip the full RPATH for the build tree 
SET(CMAKE_SKIP_BUILD_RPATH FALSE) 
# when building, don't use the install RPATH already 
# (but later on when installing) 
SET(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE) 
SET(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib;${CMAKE_INSTALL_RPATH}") 
# add the automatically determined parts of the RPATH 
# which point to directories outside the build tree to the install RPATH 
SET(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE) 
# the RPATH to be used when installing, but only if it's not a system directory 
LIST(FIND CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES "${CMAKE_INSTALL_PREFIX}/lib" isSystemDir) 
IF("${isSystemDir}" STREQUAL "-1") 
SET(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib;${CMAKE_INSTALL_RPATH}") 
ENDIF("${isSystemDir}" STREQUAL "-1") 
foreach(dir ${PETSc_LIBRARY_DIRS}) 
link_directories(main PUBLIC ${dir}) 
message("link_directories - dir is ${dir}") 
set(CMAKE_INSTALL_RPATH "${dir};${CMAKE_INSTALL_RPATH}") 
endforeach(dir) 
message("CMAKE_INSTALL_RPATH: ${CMAKE_INSTALL_RPATH}") 

include(CTest) 
enable_testing() 
add_test(NAME main COMMAND "mpirun -n 2 ./main" WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}") 

----- Mail original -----

> De: "Don Hinton" <hintonda at gmail.com>
> À: "Franck Houssen" <franck.houssen at inria.fr>
> Cc: "Andreas Naumann" <Andreas-Naumann at gmx.net>, "CMake Mail List"
> <cmake at cmake.org>
> Envoyé: Jeudi 4 Janvier 2018 17:47:19
> Objet: Re: [CMake] RPATH for pkg-config

> Are you still doing this at the end? You are overwriting here, not adding.

> IF("${isSystemDir}" STREQUAL "-1")
> SET(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
> ENDIF("${isSystemDir}" STREQUAL "-1")

> Also, do not use ':', use ';' instead as a separator. Or use 'list(APPEND
> ...), to add to a list.

> On Thu, Jan 4, 2018 at 8:34 AM, Franck Houssen < franck.houssen at inria.fr >
> wrote:

> > nope !... :D
> 

> > > De: "Don Hinton" < hintonda at gmail.com >
> > 
> 
> > > À: "Franck Houssen" < franck.houssen at inria.fr >
> > 
> 
> > > Cc: "Andreas Naumann" < Andreas-Naumann at gmx.net >, cmake at cmake.org
> > 
> 
> > > Envoyé: Jeudi 4 Janvier 2018 16:52:53
> > 
> 
> > > Objet: Re: [CMake] RPATH for pkg-config
> > 
> 

> > > On Thu, Jan 4, 2018 at 3:57 AM Franck Houssen < franck.houssen at inria.fr >
> > > wrote:
> > 
> 

> > > > > De: "Don Hinton" < hintonda at gmail.com >
> > > > 
> > > 
> > 
> 
> > > > > À: "Franck Houssen" < franck.houssen at inria.fr >
> > > > 
> > > 
> > 
> 
> > > > > Cc: "Andreas Naumann" < Andreas-Naumann at gmx.net >, cmake at cmake.org
> > > > 
> > > 
> > 
> 
> > > > > Envoyé: Jeudi 4 Janvier 2018 10:43:28
> > > > 
> > > 
> > 
> 
> > > > > Objet: Re: [CMake] RPATH for pkg-config
> > > > 
> > > 
> > 
> 

> > > > > The cmake rpath settings handle build/install directories more or
> > > > > less
> > > > > automatically, but you need to add a completely different path.
> > > > 
> > > 
> > 
> 

> > > > Yes. That's the problem: I need to add a completely different path.
> > > 
> > 
> 

> > > > > Try adding the additional path (pretty much every -L you added) to
> > > > > CMAKE_INSTALL_RPATH, and set CMAKE_BUILD_WITH_INSTALL_RPATH=TRUE.
> > > > 
> > > 
> > 
> 

> > > > See does not work
> > > 
> > 
> 

> > > > >> more ../CMakeLists.txt
> > > 
> > 
> 
> > > > ...
> > > 
> > 
> 

> > > > foreach(dir ${PETSc_LIBRARY_DIRS})
> > > 
> > 
> 
> > > > link_directories(main PUBLIC ${dir})
> > > 
> > 
> 
> > > > message("link_directories - dir is ${dir}")
> > > 
> > 
> 
> > > > set(CMAKE_INSTALL_RPATH "${dir}:${CMAKE_INSTALL_RPATH}")
> > > 
> > 
> 
> > > > endforeach(dir)
> > > 
> > 
> 

> > > s/:/;/
> > 
> 

> > > You need to use a semicolon instead is a colon as a cmake list separator.
> > 
> 

> > I wish it could have worked. Don't understand.
> 

> > I added a message
> 

> > >> cmake ..; make VERBOSE=1
> 
> > ...
> 
> > target_link_libraries - lib is
> > -L/home/fghoussen/Documents/INRIA/petsc/local/lib
> 
> > target_link_libraries - lib is -lpetsc
> 
> > link_directories - dir is /home/fghoussen/Documents/INRIA/petsc/local/lib
> 
> > CMAKE_INSTALL_RPATH:
> > /home/fghoussen/Documents/INRIA/petsc/local/lib;/usr/local/lib;/usr/local/lib;
> 
> > ...
> 
> > >> ldd main
> 
> > linux-vdso.so.1 (0x00007ffdec8e8000)
> 
> > libmpi_cxx.so.20 => /usr/lib/x86_64-linux-gnu/libmpi_cxx.so.20
> > (0x00007f429a28a000)
> 
> > libmpi.so.20 => /usr/lib/x86_64-linux-gnu/libmpi.so.20 (0x00007f4299f94000)
> 
> > libpetsc.so.3.8 => not found
> 

> > > > ...
> > > 
> > 
> 
> > > > SET(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
> > > 
> > 
> 
> > > > ...
> > > 
> > 
> 

> > > > >> cmake ..; make VERBOSE=1
> > > 
> > 
> 
> > > > ...
> > > 
> > 
> 
> > > > target_link_libraries - lib is
> > > > -L/home/fghoussen/Documents/INRIA/petsc/local/lib
> > > 
> > 
> 
> > > > target_link_libraries - lib is -lpetsc
> > > 
> > 
> 
> > > > link_directories - dir is
> > > > /home/fghoussen/Documents/INRIA/petsc/local/lib
> > > 
> > 
> 
> > > > ...
> > > 
> > 
> 
> > > > [ 50%] Building CXX object CMakeFiles/main.dir/main.cpp.o
> > > 
> > 
> 
> > > > /usr/bin/c++ -I/usr/lib/x86_64-linux-gnu/openmpi/include/openmpi
> > > > -I/usr/lib/x86_64-linux-gnu/openmpi/include/openmpi/opal/mca/event/libevent2022/libevent
> > > > -I/usr/lib/x86_64-linux-gnu/openmpi/include/openmpi/opal/mca/event/libevent2022/libevent/include
> > > > -I/usr/lib/x86_64-linux-gnu/openmpi/include
> > > > -I/home/fghoussen/Documents/INRIA/petsc/local/include -o
> > > > CMakeFiles/main.dir/main.cpp.o -c
> > > > /home/fghoussen/Downloads/cmake/rpath-pkgconfig/main.cpp
> > > 
> > 
> 
> > > > [100%] Linking CXX executable main
> > > 
> > 
> 
> > > > /usr/bin/cmake -E cmake_link_script CMakeFiles/main.dir/link.txt
> > > > --verbose=1
> > > 
> > 
> 
> > > > /usr/bin/c++ CMakeFiles/main.dir/main.cpp.o -o main
> > > > -Wl,-rpath,/usr/lib/x86_64-linux-gnu/openmpi/lib
> > > > /usr/lib/x86_64-linux-gnu/openmpi/lib/libmpi_cxx.so
> > > > /usr/lib/x86_64-linux-gnu/openmpi/lib/libmpi.so
> > > > -L/home/fghoussen/Documents/INRIA/petsc/local/lib -lpetsc
> > > 
> > 
> 
> > > > make[2]: Leaving directory
> > > > '/home/fghoussen/Downloads/cmake/rpath-pkgconfig/BUILD'
> > > 
> > 
> 
> > > > [100%] Built target main
> > > 
> > 
> 
> > > > make[1]: Leaving directory
> > > > '/home/fghoussen/Downloads/cmake/rpath-pkgconfig/BUILD'
> > > 
> > 
> 
> > > > /usr/bin/cmake -E cmake_progress_start
> > > > /home/fghoussen/Downloads/cmake/rpath-pkgconfig/BUILD/CMakeFiles 0
> > > 
> > 
> 

> > > > >> ldd main
> > > 
> > 
> 
> > > > linux-vdso.so.1 (0x00007ffcd876b000)
> > > 
> > 
> 
> > > > libmpi_cxx.so.20 => /usr/lib/x86_64-linux-gnu/libmpi_cxx.so.20
> > > > (0x00007f9eaba1f000)
> > > 
> > 
> 
> > > > libmpi.so.20 => /usr/lib/x86_64-linux-gnu/libmpi.so.20
> > > > (0x00007f9eab729000)
> > > 
> > 
> 
> > > > libpetsc.so.3.8 => not found
> > > 
> > 
> 

> > > > > Then run cmake with the ‘-v’ option and look at the link command to
> > > > > verify
> > > > > rpath was passed correctly.
> > > > 
> > > 
> > 
> 

> > > > > You can also examine it in a library or executable with ‘objdump-x’.
> > > > 
> > > 
> > 
> 

> > > > > You may want to customize this for your project, but this should get
> > > > > you
> > > > > started.
> > > > 
> > > 
> > 
> 

> > > > > hth...
> > > > 
> > > 
> > 
> 
> > > > > don
> > > > 
> > > 
> > 
> 

> > > > > On Thu, Jan 4, 2018 at 1:25 AM Franck Houssen <
> > > > > franck.houssen at inria.fr
> > > > > >
> > > > > wrote:
> > > > 
> > > 
> > 
> 

> > > > > > My understanding is that you need a local copy of FindPETSc.cmake:
> > > > > > if
> > > > > > this
> > > > > > changes, you don't know it.
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > That's why I tried to go with the pc file.
> > > > > 
> > > > 
> > > 
> > 
> 

> > > > > > ----- Mail original -----
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > De: "Andreas Naumann" < Andreas-Naumann at gmx.net >
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > À: cmake at cmake.org
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > Envoyé: Mercredi 3 Janvier 2018 21:41:51
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > Objet: Re: [CMake] RPATH for pkg-config
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > >
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > What about using a FindPETSC-Module? Some hints are
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > * http://jacobmerson.com/2016/01/17/cmake-petsc2.html
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > * http://www.mcs.anl.gov/petsc/documentation/faq.html#cmake
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > >
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > Regards,
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > Andreas
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > >
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > Am 03.01.2018 um 21:35 schrieb Alexander Neundorf:
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > > On 2018 M01 3, Wed 10:08:09 CET Franck Houssen wrote:
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> Hello,
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >>
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> How to ask cmake to add a library path (coming from pc file)
> > > > > > > >> to
> > > > > > > >> rpath
> > > > > > > >> ?
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >>
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> I checked this https://cmake.org/Wiki/CMake_RPATH_handling ,
> > > > > > > >> but
> > > > > > > >> still
> > > > > > > >> not
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> working. Can somebody help ?
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >>>> more main.cpp
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> #include <petsc.h>
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >>
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> int main(int argc, char ** argv) {
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> PetscInitialize(&argc, &argv, NULL, "");
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> PetscFinalize();
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> return 0;
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> }
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >>
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >>>> more CMakeLists.txt
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> cmake_minimum_required(VERSION 3.7)
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> enable_language(CXX)
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >>
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> find_package(MPI REQUIRED)
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> find_package(PkgConfig REQUIRED) # Get pkg_check_modules.
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> pkg_check_modules(PETSc REQUIRED PETSc)
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >>
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> project(main)
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> add_executable(main main.cpp)
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >>
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> target_include_directories(main PUBLIC
> > > > > > > >> ${MPI_CXX_INCLUDE_PATH})
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> target_link_libraries(main PUBLIC ${MPI_CXX_LIBRARIES})
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >>
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> target_include_directories(main PUBLIC ${PETSc_INCLUDE_DIRS})
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> foreach(lib ${PETSc_LDFLAGS})
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> target_link_libraries(main PUBLIC ${lib})
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> endforeach(lib)
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > > How does each ${lib} look like ?
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > > Is it "-lpetsc" or does it have the full path to the libraries
> > > > > > > > ?
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > > You should use the full path to the libraries, otherwise cmake
> > > > > > > > doesn't
> > > > > > > > know
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > > where they are and the RPATH computation will not work.
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> foreach(dir ${PETSc_LIBRARY_DIRS})
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> link_directories(main PUBLIC ${dir}) # Not sure: is this
> > > > > > > >> needed
> > > > > > > >> ?
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> endforeach(dir)
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > > no, link_directories() in general should not be used.
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> # use, i.e. don't skip the full RPATH for the build tree
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> SET(CMAKE_SKIP_BUILD_RPATH FALSE)
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> # when building, don't use the install RPATH already
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> # (but later on when installing)
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> SET(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE)
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >> SET(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > > If the automatic computation fails, you could add the petsc lib
> > > > > > > > dir
> > > > > > > > here
> > > > > > > > as
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > > INSTALL_RPATH
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > > Alex
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > >
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > >
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > --
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > >
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > Powered by www.kitware.com
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > >
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > Please keep messages on-topic and check the CMake FAQ at:
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > http://www.cmake.org/Wiki/CMake_FAQ
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > >
> > > > > 
> > > > 
> > > 
> > 
> 
> > > > > > > Kitware offers various services to support the CMake community.
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> > > > > > > more
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> 
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> > > 
> > 
> 
> > > > > > > CMake Support: http://cmake.org/cmake/help/support.html
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> > > > 
> > > 
> > 
> 
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> 
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> > > > > > --
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> > 
> 

> > > > > > Powered by www.kitware.com
> > > > > 
> > > > 
> > > 
> > 
> 

> > > > > > Please keep messages on-topic and check the CMake FAQ at:
> > > > > > http://www.cmake.org/Wiki/CMake_FAQ
> > > > > 
> > > > 
> > > 
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> 

> > > > > > Kitware offers various services to support the CMake community. For
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> > > > > > CMake Support: http://cmake.org/cmake/help/support.html
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> > > > > > CMake Consulting: http://cmake.org/cmake/help/consulting.html
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> 
> > > > > > CMake Training Courses: http://cmake.org/cmake/help/training.html
> > > > > 
> > > > 
> > > 
> > 
> 

> > > > > > Visit other Kitware open-source projects at
> > > > > > http://www.kitware.com/opensource/opensource.html
> > > > > 
> > > > 
> > > 
> > 
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> > > > > > Follow this link to subscribe/unsubscribe:
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