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Unreferenced Libraries?

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    A Former User
    wrote on last edited by
    #2

    Have you added the library to LIBS? Is it properly listed in the linker command when compiling / linking the project?
    @
    LIBS += -L<path to library> -l<library name>
    @

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      A Former User
      wrote on last edited by
      #3

      Yes i have added the library to my .pro file
      @
      unix|win32: LIBS += -ltest_code -LC:\VS13_VIEWS\libs
      @

      just tried the syntax you posted and still no go

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        A Former User
        wrote on last edited by
        #4

        You are not exporting the class.
        If you are using Qt Creator, have a look at the library template.

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          A Former User
          wrote on last edited by
          #5

          [quote author="JediSpam" date="1313071868"]I then create that into a .lib[/quote]

          Are we talking about a static library or a shared library?

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            A Former User
            wrote on last edited by
            #6

            [quote author="Lukas Geyer" date="1313072764"][quote author="JediSpam" date="1313071868"]I then create that into a .lib[/quote]

            Are we talking about a static library or a shared library? If so you will have to export symbols as loladiro said.[/quote]

            this is a static library i have created in visual studio 2003. i'm trying to understand the library template stuff

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              A Former User
              wrote on last edited by
              #7

              You might use the nm tool to see which symbols are exported from your library.

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                A Former User
                wrote on last edited by
                #8

                [quote]
                this is a static library i have created in visual studio 2003.
                [/quote]
                Are you trying to mix MSVC and MinGW-compiled code? Not a good Idea!!

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                  A Former User
                  wrote on last edited by
                  #9

                  You talking about static library ?

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                    A Former User
                    wrote on last edited by
                    #10

                    [quote author="printingesco" date="1313075382"]You talking about static library ?[/quote]

                    yes

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                      A Former User
                      wrote on last edited by
                      #11

                      [quote author="loladiro" date="1313072534"]You are not exporting the class.
                      If you are using Qt Creator, have a look at the library template.[/quote]

                      I read the qMake Project Files section "Declaring Other Libraries" and don't see what I haven't done correctly.

                      [quote author="Lukas Geyer" date="1313072949"]You might use the nm tool to see which symbols are exported from your library.[/quote]

                      Is this a QT tool I don't see it anywhere

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                        A Former User
                        wrote on last edited by
                        #12

                        Again, did you compile your library with mingw? It doesn't seem that way because mingw static library files have a .a extension. You cannot mix MSVC and MinGW.

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                          A Former User
                          wrote on last edited by
                          #13

                          [quote author="loladiro" date="1313076573"]Again, did you compile your library with mingw? It doesn't seem that way because mingw static library files have a .a extension. You cannot mix MSVC and MinGW.[/quote]

                          ah i see. so i'd have to use the MinGW in visual studio to build a library.

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                            A Former User
                            wrote on last edited by
                            #14

                            You'd have to either build both the library and app with MinGW or both with MSVC.

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                              A Former User
                              wrote on last edited by
                              #15

                              [quote author="JediSpam" date="1313076335"]
                              [quote author="Lukas Geyer" date="1313072949"]You might use the nm tool to see which symbols are exported from your library.[/quote]
                              Is this a QT tool I don't see it anywhere
                              [/quote]

                              nm comes with MinGW, which is part of the Qt SDK. Just open a Qt command promt and type nm <binary> to get a list of exported symbols.

                              (Although it comes with MinGW it should work with any PE - read MSVC - binaries).

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                                A Former User
                                wrote on last edited by
                                #16

                                Thanks for the help guys!

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