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cmake in linux ubuntu

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  • L Offline
    L Offline
    Leopold
    wrote on last edited by
    #5

    Hi SGaist,
    thank you, at first glance this was easy.Now I have a librosco.so, librosco.so.2 and librosco.so.2.0.0 in my source folder and /source/lib they are set to rwx/rwx/rw but files are not found.

    1 Reply Last reply
    0
    • VRoninV Offline
      VRoninV Offline
      VRonin
      wrote on last edited by VRonin
      #6

      librosco is built and installed with cmake so it is super easy.
      After you built librosco just call sudo make install then add the path where the library was installed to CMAKE_PREFIX_PATH if it's not a directory already in your PATH variable.
      Now you can just use find_package(librosco)

      "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
      ~Napoleon Bonaparte

      On a crusade to banish setIndexWidget() from the holy land of Qt

      1 Reply Last reply
      2
      • L Offline
        L Offline
        Leopold
        wrote on last edited by
        #7

        Hi Vronin,
        I could install librosco but when I search for the package i get this answer
        :```
        Detecting CXX compiler ABI info - done
        Detecting CXX compile features
        Detecting CXX compile features - done
        Defaulting to Linux build environment.
        CMake Warning at CMakeLists.txt:229 (find_package):
        By not providing "FindLIBROSCO.cmake" in CMAKE_MODULE_PATH this project has
        asked CMake to find a package configuration file provided by "LIBROSCO",
        but CMake did not find one.

        Could not find a package configuration file provided by "LIBROSCO" with any
        of the following names:

        LIBROSCOConfig.cmake
        librosco-config.cmake
        

        Add the installation prefix of "LIBROSCO" to CMAKE_PREFIX_PATH or set
        "LIBROSCO_DIR" to a directory containing one of the above files. If
        "LIBROSCO" provides a separate development package or SDK, be sure it has
        been installed.

        when I search for the library i get this fault:
        

        CMake Error at CMakeLists.txt:229 (find_library):
        find_library called with incorrect number of arguments

        the same when i write find_file.
        When i read the man for  find_library or find_file  only one argument is needed , the rest is optional. Am I right?
        VRoninV 1 Reply Last reply
        0
        • L Leopold

          Hi Vronin,
          I could install librosco but when I search for the package i get this answer
          :```
          Detecting CXX compiler ABI info - done
          Detecting CXX compile features
          Detecting CXX compile features - done
          Defaulting to Linux build environment.
          CMake Warning at CMakeLists.txt:229 (find_package):
          By not providing "FindLIBROSCO.cmake" in CMAKE_MODULE_PATH this project has
          asked CMake to find a package configuration file provided by "LIBROSCO",
          but CMake did not find one.

          Could not find a package configuration file provided by "LIBROSCO" with any
          of the following names:

          LIBROSCOConfig.cmake
          librosco-config.cmake
          

          Add the installation prefix of "LIBROSCO" to CMAKE_PREFIX_PATH or set
          "LIBROSCO_DIR" to a directory containing one of the above files. If
          "LIBROSCO" provides a separate development package or SDK, be sure it has
          been installed.

          when I search for the library i get this fault:
          

          CMake Error at CMakeLists.txt:229 (find_library):
          find_library called with incorrect number of arguments

          the same when i write find_file.
          When i read the man for  find_library or find_file  only one argument is needed , the rest is optional. Am I right?
          VRoninV Offline
          VRoninV Offline
          VRonin
          wrote on last edited by
          #8

          @Leopold said in cmake in linux ubuntu:

          I could install librosco

          In what folder?

          I think you missed this part:

          @VRonin said in cmake in linux ubuntu:

          add the path where the library was installed to CMAKE_PREFIX_PATH if it's not a directory already in your PATH variable.

          "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
          ~Napoleon Bonaparte

          On a crusade to banish setIndexWidget() from the holy land of Qt

          1 Reply Last reply
          0
          • L Offline
            L Offline
            Leopold
            wrote on last edited by
            #9

            Hi I did the sudo make install in the librosco build folder there it was the makefile
            adding to LD_LIBRARY_PATH was activated.
            I do not know where it is installed.

            jsulmJ 1 Reply Last reply
            0
            • L Leopold

              Hi I did the sudo make install in the librosco build folder there it was the makefile
              adding to LD_LIBRARY_PATH was activated.
              I do not know where it is installed.

              jsulmJ Online
              jsulmJ Online
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #10

              @Leopold said in cmake in linux ubuntu:

              I do not know where it is installed

              You should see the path in the output of "make install"

              https://forum.qt.io/topic/113070/qt-code-of-conduct

              1 Reply Last reply
              0
              • L Offline
                L Offline
                Leopold
                wrote on last edited by
                #11

                i found them in /usr/lib

                1 Reply Last reply
                0
                • L Offline
                  L Offline
                  Leopold
                  wrote on last edited by
                  #12

                  I exported /usr/lib to my path
                  no help

                  1 Reply Last reply
                  0
                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #13

                    Are you using CMAKE_PREFIX_PATH as @VRonin suggested ?

                    Interested in AI ? www.idiap.ch
                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                    1 Reply Last reply
                    0
                    • L Offline
                      L Offline
                      Leopold
                      wrote on last edited by
                      #14

                      Yes, i have it in the code

                          message (STATUS "Defaulting to Linux build environment.")
                          set(CMAKE_INCLUDE_CURRENT_DIR ON)
                          set( CMAKE_PREFIX_PATH =/usr/lib)
                        #  file(WRITE "${LIBROSCO} )#${CMAKE_STATIC_LIBRARY_PREFIX}librosco ${CMAKE_STATIC_LIBRARY_SUFFIX}so*" )
                          find_library([${LIBROSCO}]
                                       HINTS /usr/lib)
                      
                      
                          # check if we found the library
                           message(STATUS "LIB_ROSCO:${LIBROSCO}")
                            message(PATH "LIB_ROSCO:${LIBROSCO}")
                      
                          target_link_libraries (${PNAME} ${LIBROSCO} Qt5::Widgets)
                      

                      this didn help so I exported the command and have it there```
                      leopold@leopold-Mint:~$ export
                      declare -x CINNAMON_VERSION="4.4.8"
                      declare -x CMAKE_PREFIX_PATH="/usr/lib"
                      declare -x COLORTERM="truecolor"
                      declare -x DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/1000/bus"
                      declare -x DEFAULTS_PATH="/usr/share/gconf/cinnamon.default.path"
                      declare -x DESKTOP_SESSION="cinnamon"
                      declare -x DISPLAY=":0"
                      declare -x GDMSESSION="cinnamon"
                      declare -x GDM_LANG="de_DE"
                      declare -x GJS_DEBUG_OUTPUT="stderr"
                      declare -x GJS_DEBUG_TOPICS="JS ERROR;JS LOG"
                      declare -x GNOME_DESKTOP_SESSION_ID="this-is-deprecated"
                      declare -x GNOME_TERMINAL_SCREEN="/org/gnome/Terminal/screen/3383bf57_7307_4aea_ada8_299ad807e660"
                      declare -x GNOME_TERMINAL_SERVICE=":1.74"
                      declare -x GPG_AGENT_INFO="/run/user/1000/gnupg/S.gpg-agent:0:1"
                      declare -x GTK_MODULES="gail:atk-bridge"
                      declare -x GTK_OVERLAY_SCROLLING="1"

                      no help again
                      and have it as rwx/rwx/rwx in /usr/lib
                      
                      still:
                      

                      Defaulting to Linux build environment.
                      LIB_ROSCO:LIBROSCO-NOTFOUND
                      PATHLIB_ROSCO:LIBROSCO-NOTFOUND
                      CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
                      Please set them or make sure they are set and tested correctly in the CMake files:
                      LIBROSCO
                      linked by target "mems-rosco2.2.6" in directory /home/leopold/QT-examples/mems-rosco2.2.6

                      Configuring incomplete, errors occurred!

                      Now my question: Is this caused by an other entry in the cmakelists file?
                      Here it is:

                      cmake_minimum_required (VERSION 2.8.11)
                      set (CMAKE_COMPILER_IS_GNUCC)
                      set (PROJECTNAME "MEMS-rosco2.2.6")
                      
                      string (TOLOWER ${PROJECTNAME} PNAME)
                      project (${PNAME})
                      add_definitions (-DPROJECTNAME=\"${PROJECTNAME}\")
                      
                      set (VER_MAJOR 0)
                      set (VER_MINOR 5)
                      set (VER_PATCH 0)
                      
                      SET (Qt5LinguistTools_DIR /opt/Qt/5.12.2/gcc_64/lib/cmake/Qt5LinguistTools CACHE PATH "Qt5LinguistTools_DIR")
                      
                      FIND_PACKAGE( Qt5LinguistTools )
                      
                      set (LANGUAGES
                      		transfile_en
                      		transfile_esp
                      		transfile_fr
                      		transfile_ge
                      	)
                      set_directory_properties(PROPERTIES CLEAN_NO_CUSTOM 1)
                      qt5_create_translation(TRANSLATION_MESSAGES ${FILES_TO_TRANSLATE} ${TRANSLATION_FILES})
                      qt5_add_translation(TRANSLATION_QM ${TRANSLATION_FILES})
                      add_custom_target(translations_update DEPENDS ${TRANSLATION_MESSAGES})
                      add_custom_target(translations DEPENDS ${TRANSLATION_QM})
                      
                      set (CMAKE_INCLUDE_CURRENT_DIR ON)
                      set (CMAKE_AUTOMOC ON)
                      
                      set (CPACK_SOURCE_GENERATOR "TGZ")
                      set (CPACK_SOURCE_PACKAGE_FILE_NAME "${PROJECT_NAME}-${VER_MAJOR}.${VER_MINOR}.${VER_PATCH}-src")
                      set (CPACK_SOURCE_IGNORE_FILES
                            ".*~$"
                            ".git"
                            ".gitignore"
                            ".*swp$"
                            ".*zip$"
                            ".*gz$"
                            ".*deb$"
                            "Makefile.*"
                            "moc_"
                            "qrc_"
                            "^CPack.*"
                            "_CPack_Packages"
                            "CPackConfig.cmake"
                            "CPackSourceConfig.cmake"
                            "CMakeFiles"
                            "CMakeCache.txt"
                            "CMakeLists.txt.user*"
                            "cmake_install.cmake"
                            "install_manifest.txt"
                            "README.TXT"
                            "LICENSE.TXT"
                            "build/"
                            "build-win32/"
                            "settings.ini"
                            "debug"
                            "release"
                            "object_script.*")
                      
                      configure_file (
                        "help.html.in"
                        "${CMAKE_SOURCE_DIR}/help.html"
                        )
                      
                      set(CMAKE_INSTALL_RPATH "/usr/local/lib")
                      set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
                      
                      find_package (Qt5Widgets REQUIRED)
                      
                      set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${Qt5Widgets_EXECUTABLE_COMPILE_FLAGS}")
                      
                      					 
                      					 include_directories ("${CMAKE_SOURCE_DIR}"
                                           "${CMAKE_SOURCE_DIR}/lib"
                                           "${CMAKE_SOURCE_DIR}/qledindicator"
                                           "${CMAKE_SOURCE_DIR}/analogwidgets"
                                           "${CMAKE_CURRENT_BINARY_DIR}"
                                           "${Qt5Widgets_INCLUDE_DIRS}"
                      					 )
                      
                      
                      qt5_wrap_ui (UI_SOURCE mainwindow.ui)
                      qt5_add_resources (RG_RESOURCE resources.qrc)
                      
                      add_definitions ("-DVER_MAJOR=${VER_MAJOR}"
                                       "-DVER_MINOR=${VER_MINOR}"
                                       "-DVER_PATCH=${VER_PATCH}")
                      
                      add_executable (${PNAME} main.cpp
                                               memsinterface.cpp
                                               helpviewer.cpp
                                               logger.cpp
                                               serialdevenumerator.cpp
                                               mainwindow.cpp
                                               aboutbox.cpp
                                               optionsdialog.cpp
                                               qledindicator/qledindicator.cpp
                                               analogwidgets/led.cpp
                                               analogwidgets/functions.cpp
                                               analogwidgets/widgetwithbackground.cpp
                                               analogwidgets/manometer.cpp
                                               analogwidgets/abstractmeter.cpp
                      
                      
                      
                                               ${UI_SOURCE}
                                               ${RG_RESOURCE})
                      
                       #set (LIBROSCO_PATH "../librosco")
                       #include_directories ("${LIBROSCO_PATH}/include")
                      
                      if (MINGW)
                        message (STATUS "Found Windows/MinGW platform.")
                      
                        # prevent the final executable from launching a terminal window in parallel with the main GUI
                        set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mwindows")
                      
                        # -fPIC appears to be redundant when building win32 binaries, so disable that flag
                        string (REGEX REPLACE "-fPIC" "" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
                      
                        set (LIBROSCO_PATH "$ENV{SystemDrive}/mems-rosco")
                        include_directories ("${LIBROSCO_PATH}/include")
                        include_directories ("/usr/local/lib/include")
                      
                        message (STATUS "Defaulting installation path to: $ENV{SystemDrive}/${PNAME}")
                        set (CMAKE_INSTALL_PREFIX "$ENV{SystemDrive}/${PNAME}")
                        set (EXE_FILE "${CMAKE_CURRENT_BINARY_DIR}/${PNAME}.exe")
                      
                        # When we call find_library() below, we're only looking for DLLs, so set the suffix list appropriately
                        set (CMAKE_FIND_LIBRARY_SUFFIXES ".dll")
                        message (STATUS "Limiting find_library() suffixes to ${CMAKE_FIND_LIBRARY_SUFFIXES}")
                      
                        find_library (LIBGCC NAMES libgcc_s_sjlj-1 libgcc_s_seh-1 libgcc_s_dw2-1)
                      	  if (LIBGCC)
                      		message (STATUS "Found libgcc at ${LIBGCC}")
                      	  else ()
                      		message (SEND_ERROR "Could not find libgcc!")
                      	  endif ()
                      
                        find_library (LIBSTDCPP libstdc++-6)
                      	  if (LIBSTDCPP)
                      		message (STATUS "Found libstdc++ at ${LIBSTDCPP}")
                      	  else ()
                      		message (SEND_ERROR "Could not find libstdc++!")
                      	  endif ()
                      
                        find_library (ZLIB zlib1)
                      	  if (ZLIB)
                      		message (STATUS "Found zlib1 at ${ZLIB}")
                      	  else ()
                      		message (SEND_ERROR "Could not find zlib1!")
                      	  endif ()
                      
                        find_library (QTCORE_DLL Qt5Core)
                      	  if (QTCORE_DLL)
                      		message (STATUS "Found QtCore at ${QTCORE_DLL}")
                      	  else ()
                      		message (SEND_ERROR "Could not find Qt5Core.dll! Check that the Qt5 bin/ directory (or the qtbase/bin/ directory) is in your PATH.")
                      	  endif ()
                      
                        find_library (QTGUI_DLL Qt5Gui)
                      	  if (QTGUI_DLL)
                      		message (STATUS "Found QtGui at ${QTGUI_DLL}")
                      	  else ()
                      		message (SEND_ERROR "Could not find Qt5Gui.dll! Check that the Qt5 bin/ directory (or the qtbase/bin/ directory) is in your PATH.")
                      	  endif ()
                      
                        find_library (QTWIDGETS_DLL Qt5Widgets)
                      	  if (QTGUI_DLL)
                      		message (STATUS "Found QtWidgets at ${QTWIDGETS_DLL}")
                      	  else ()
                      		message (SEND_ERROR "Could not find Qt5Widgets.dll! Check that the Qt5 bin/ directory (or the qtbase/bin/ directory) is in your PATH.")
                      	  endif ()
                      
                        find_library (QWINDOWS_DLL qwindows)
                      	  if (QWINDOWS_DLL)
                      		message (STATUS "Found Qt qwindows platform plugin at ${QWINDOWS_DLL}")
                      	  else ()
                      		message (SEND_ERROR "Could not find Qt qwindows platform plugin!")
                      	  endif ()
                        
                          find_library (LIPWINPTREAD libwinpthread-1)
                      	  if (LIPWINPTREAD)
                      		message (STATUS "Found libwinptread plugin at ${LIPWINPTREAD}")
                      	  else ()
                      		message (SEND_ERROR "Could not find winptread platform plugin!")
                      	  endif ()
                      
                        find_library(LIBROSCO_DLL librosco PATHS ${LIBROSCO_PATH} ${CMAKE_INSTALL_PREFIX})
                      	  if (LIBROSCO_DLL)
                      		message (STATUS "Found librosco at ${LIBROSCO_DLL}")
                      	  else ()
                      		message (SEND_ERROR "Could not find librosco.dll! Check that it exists in one of the directories in your PATH.")
                      	  endif ()
                      
                        #target_link_libraries (${PNAME} ${LIBROSCO_DLL} Qt5::Widgets)
                      
                        # convert Unix-style newline characters into Windows-style
                        configure_file ("${CMAKE_SOURCE_DIR}/README" "${CMAKE_BINARY_DIR}/README.TXT" NEWLINE_STYLE WIN32)
                        configure_file ("${CMAKE_SOURCE_DIR}/LICENSE" "${CMAKE_BINARY_DIR}/LICENSE.TXT" NEWLINE_STYLE WIN32)
                      
                        install (FILES "${CMAKE_BINARY_DIR}/README.TXT" "${CMAKE_BINARY_DIR}/LICENSE.TXT" DESTINATION "doc")
                        install (FILES ${EXE_FILE}
                                       ${LIBGCC}
                                       ${LIBSTDCPP}
                                       ${QTCORE_DLL}
                                       ${QTGUI_DLL}
                                       ${QTWIDGETS_DLL}
                                       ${LIBROSCO_DLL}
                               ${LIPWINPTREAD}
                                       ${ZLIB}
                                 DESTINATION ".")
                        install (FILES ${QWINDOWS_DLL} DESTINATION "platforms")
                      
                        set (CPACK_GENERATOR "ZIP")
                        set (CPACK_PACKAGE_NAME ${PROJECT_NAME})
                        set (CPACK_INCLUDE_TOPLEVEL_DIRECTORY 0)
                        set (CPACK_PACKAGE_FILE_NAME "${PROJECT_NAME}-${VER_MAJOR}.${VER_MINOR}.${VER_PATCH}-${CMAKE_SYSTEM_NAME}")
                        include (CPack)
                      
                      else()
                          message (STATUS "Defaulting to Linux build environment.")
                          set(CMAKE_INCLUDE_CURRENT_DIR ON)
                          set( CMAKE_PREFIX_PATH =/usr/lib)
                        #  file(WRITE "${LIBROSCO} )#${CMAKE_STATIC_LIBRARY_PREFIX}librosco ${CMAKE_STATIC_LIBRARY_SUFFIX}so*" )
                          find_library([${LIBROSCO}]
                                       HINTS /usr/lib)
                      
                          # check if we found the library
                           message(STATUS "LIB_ROSCO:${LIBROSCO}")
                            message(PATH "LIB_ROSCO:${LIBROSCO}")
                      
                          target_link_libraries (${PNAME} ${LIBROSCO} Qt5::Widgets)
                      
                        set (CMAKE_SKIP_RPATH TRUE)
                        set (CMAKE_INSTALL_PREFIX "/usr")
                        set (EXE_FILE "${CMAKE_CURRENT_BINARY_DIR}/${PNAME}")
                      
                        # set the installation destinations for the header files,
                        # shared library binaries, and reference utility
                        install (FILES ${EXE_FILE} DESTINATION "bin"
                                 PERMISSIONS
                                  OWNER_READ OWNER_EXECUTE OWNER_WRITE
                                  GROUP_READ GROUP_EXECUTE
                                  WORLD_READ WORLD_EXECUTE)
                      
                        install (DIRECTORY DESTINATION "share/doc/${PNAME}" DIRECTORY_PERMISSIONS
                                  OWNER_READ OWNER_EXECUTE OWNER_WRITE
                                  GROUP_READ GROUP_EXECUTE
                                  WORLD_READ WORLD_EXECUTE)
                      
                        install (FILES "${CMAKE_SOURCE_DIR}/README"
                                       "${CMAKE_SOURCE_DIR}/LICENSE"
                                 DESTINATION "share/doc/${PNAME}"
                                 PERMISSIONS
                                  OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ)
                      
                        # set the architecture flag that will be used by the Debian package builder
                        if (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86_64")
                          set (CPACK_DEBIAN_PACKAGE_ARCHITECTURE amd64)
                        elseif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "i686")
                          set (CPACK_DEBIAN_PACKAGE_ARCHITECTURE i386)
                        endif (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86_64")
                      
                        set (CPACK_GENERATOR "DEB")
                        set (CPACK_PACKAGE_NAME ${PROJECT_NAME})
                        set (CPACK_PACKAGE_VERSION_MAJOR ${VER_MAJOR})
                        set (CPACK_PACKAGE_VERSION_MINOR ${VER_MINOR})
                        set (CPACK_PACKAGE_VERSION_PATCH ${VER_PATCH})
                        set (CPACK_DEBIAN_PACKAGE_MAINTAINER "Colin Bourassa <colin.bourassa@gmail.com>")
                        set (CPACK_PACKAGE_DESCRIPTION_SUMMARY "Graphical display for data read from Rover MEMS 1.6 (Modular Engine Management System)")
                        set (CPACK_DEBIAN_PACKAGE_SECTION "Science")
                        set (CPACK_DEBIAN_PACKAGE_DEPENDS "libc6 (>= 2.13), libstdc++6 (>= 4.6.3), librosco (>= 0.1.0), libqt5core5a (>= 5.0.2), libqt5gui5 (>= 5.0.2), libqt5widgets5 (>= 5.0.2)")
                        set (CPACK_PACKAGE_FILE_NAME "${PROJECT_NAME}-${VER_MAJOR}.${VER_MINOR}.${VER_PATCH}-${CMAKE_SYSTEM_NAME}-${CPACK_DEBIAN_PACKAGE_ARCHITECTURE}")
                        set (CPACK_RESOURCE_FILE_LICENSE "${CMAKE_SOURCE_DIR}/LICENSE")
                        set (CPACK_RESOURCE_FILE_README "${CMAKE_SOURCE_DIR}/README")
                      
                        include(CPack)
                      
                      endif()
                      
                      
                      1 Reply Last reply
                      0
                      • Christian EhrlicherC Offline
                        Christian EhrlicherC Offline
                        Christian Ehrlicher
                        Lifetime Qt Champion
                        wrote on last edited by
                        #15

                        @Leopold said in cmake in linux ubuntu:

                        find_library([${LIBROSCO}]

                        This is wrong. See the documentation - you need to pass a variable, not the content of a variable

                        Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                        Visit the Qt Academy at https://academy.qt.io/catalog

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                        1
                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #16

                          @Leopold said in cmake in linux ubuntu:

                          set( CMAKE_PREFIX_PATH =/usr/lib)

                          That's an invalid path.

                          Interested in AI ? www.idiap.ch
                          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                          1 Reply Last reply
                          1
                          • L Offline
                            L Offline
                            Leopold
                            wrote on last edited by
                            #17

                            Hi both,
                            as I tried the path with quotation marks as well and as variable only librosco in small letters (I have tried all forms of writing) and nothing helped , could you please give me the examples.

                            1 Reply Last reply
                            0
                            • VRoninV Offline
                              VRoninV Offline
                              VRonin
                              wrote on last edited by VRonin
                              #18

                              As I said:

                              @VRonin said in cmake in linux ubuntu:

                              use find_package(librosco)

                              You are using find_library that tryes to link to a dll (which is already wrong) and it contains no infos on the dependancies


                              set( CMAKE_PREFIX_PATH =/usr/lib)

                              Remove this line, it just creates a mess as it might remove search paths. CMAKE_PREFIX_PATH should be set on the command line (if you are using Qt Creator you have to set it in the project configuration, on the left vertical bar, the wrench icon). /usr/lib is already in PATH so you should actually do nothing

                              "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
                              ~Napoleon Bonaparte

                              On a crusade to banish setIndexWidget() from the holy land of Qt

                              1 Reply Last reply
                              0
                              • L Offline
                                L Offline
                                Leopold
                                wrote on last edited by
                                #19

                                Hi VRonin
                                I did that```
                                set(CMAKE_INCLUDE_CURRENT_DIR ON)
                                find_package(librosco)
                                # check if we found the library
                                message(PATH "LIB_ROSCO: ${librosco}" )
                                message(STATUS "LIB_ROSCO:${librosco}" )

                                how do i have to write the message command
                                1 Reply Last reply
                                0
                                • L Offline
                                  L Offline
                                  Leopold
                                  wrote on last edited by
                                  #20

                                  If I configure directly with cmake I get this error:

                                  CMake Warning at CMakeLists.txt:234 (find_package):
                                    By not providing "Findlibrosco.cmake" in CMAKE_MODULE_PATH this project has
                                    asked CMake to find a package configuration file provided by "librosco",
                                    but CMake did not find one.
                                  
                                    Could not find a package configuration file provided by "librosco" with any
                                    of the following names:
                                  
                                      libroscoConfig.cmake
                                      librosco-config.cmake
                                  
                                    Add the installation prefix of "librosco" to CMAKE_PREFIX_PATH or set
                                    "librosco_DIR" to a directory containing one of the above files.  If
                                    "librosco" provides a separate development package or SDK, be sure it has
                                    been installed.
                                  
                                  
                                  PATHLIB_ROSCO: 
                                  LIB_ROSCO:
                                  Configuring done
                                  
                                  1 Reply Last reply
                                  0
                                  • L Offline
                                    L Offline
                                    Leopold
                                    wrote on last edited by
                                    #21

                                    I can not find those files myself. Do I have to add a command in the cmakelists.txt for librosco

                                    1 Reply Last reply
                                    0
                                    • VRoninV Offline
                                      VRoninV Offline
                                      VRonin
                                      wrote on last edited by
                                      #22

                                      what are the contents of /usr/lib/librosco?

                                      "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
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                                        Leopold
                                        wrote on last edited by
                                        #23

                                        I have no folder /usr/lib/librosco but
                                        in /usr/lib there are the three librosco.so ,librosco.so.2 and librosco.so.2.0.0

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