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  4. Qt 5.11.3 works fine, but Qt 5.12.1 throws LINKER errors
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Qt 5.11.3 works fine, but Qt 5.12.1 throws LINKER errors

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  • hskoglundH hskoglund

    @m3g1dd While checking the netlib DLL is a good thing for avoiding failures when launching your application.exe (when the .dll is loaded), here the error occurs not when running the app, but when linking it, So the .dll is immaterial, you could instead check the netlib.lib file, that's what the linker is reading.

    Dependency Walker isn't well suited for reading .lib files, but there's a tool in MSVC2017 called dumpbin, easiest is to start it from a Developer Command Prompt for VS 2017. To get the complete information, use the /linkermember switch, say like this:

    dumpbin /linkermember netlib.lib
    

    Then check in the list if that symbol is exported, it should be 2 of them, one __imp?registerNetLibraryQML@NetLibrary@@YAXXZ and one ?registerNetLibraryQML@NetLibrary@@YAXXZ

    M Offline
    M Offline
    m3g1dd
    wrote on last edited by m3g1dd
    #13

    @hskoglund

    Thanks! I run the command on Developer Command Prompt for VS 2017 and I get the results, I can see both ?registerNetLibraryQML@NetLibrary@@YAXXZ and __imp_?registerNetLibraryQML@NetLibrary@@YAXXZ expressions:

    C:\Users\me\repos\build-application-Desktop_Qt_5_12_1_MSVC2017_64bit-Debug\netlib\debug>dumpbin /linkermember netlib.lib
    Microsoft (R) COFF/PE Dumper Version 14.15.26730.0
    Copyright (C) Microsoft Corporation.  All rights reserved.
    
    
    Dump of file netlib.lib
    
    File Type: LIBRARY
    
    Archive member name at 8: /
    FFFFFFFF time/date
             uid
             gid
           0 mode
         C3D size
    correct header end
    
        69 public symbols
    
         190A __IMPORT_DESCRIPTOR_netlib
         1B30 __NULL_IMPORT_DESCRIPTOR
         1C66 netlib_NULL_THUNK_DATA
         2878 ?registerNetLibraryQML@NetLibrary@@YAXXZ
         2878 __imp_?registerNetLibraryQML@NetLibrary@@YAXXZ
         2E0C ?tr@Netlib@@SA?AVQString@@PEBD0H@Z
         2E0C __imp_?tr@Netlib@@SA?AVQString@@PEBD0H@Z
         2E8A ?trUtf8@Netlib@@SA?AVQString@@PEBD0H@Z
         2E8A __imp_?trUtf8@Netlib@@SA?AVQString@@PEBD0H@Z
         1DBE ??0Netlib@@QEAA@XZ
         1DBE __imp_??0Netlib@@QEAA@XZ
         1E2C ??1Netlib@@UEAA@XZ
         1E2C __imp_??1Netlib@@UEAA@XZ
         1F06 ?agentDiscover@Netlib@@QEAAXXZ
         1F06 __imp_?agentDiscover@Netlib@@QEAAXXZ
         1FFA ?agentSlice@Netlib@@QEAA_NAEBVQUrl@@AEBVQString@@V3@222@Z
         1FFA __imp_?agentSlice@Netlib@@QEAA_NAEBVQUrl@@AEBVQString@@V3@222@Z
         210E ?discoveryInProgress@Netlib@@QEBA_NXZ
         210E __imp_?discoveryInProgress@Netlib@@QEBA_NXZ
         28FC ?setDiscoveryInProgress@Netlib@@QEAAX_N@Z
         28FC __imp_?setDiscoveryInProgress@Netlib@@QEAAX_N@Z
         2C7E ?slicingInProgress@Netlib@@QEBA_NXZ
         2C7E __imp_?slicingInProgress@Netlib@@QEBA_NXZ
         2A82 ?setSlicingInProgress@Netlib@@QEAAX_N@Z
         2A82 __imp_?setSlicingInProgress@Netlib@@QEAAX_N@Z
         2530 ?layerID@Netlib@@QEBA?AVQString@@XZ
         2530 __imp_?layerID@Netlib@@QEBA?AVQString@@XZ
         2982 ?setLayerID@Netlib@@QEAAXVQString@@@Z
         2982 __imp_?setLayerID@Netlib@@QEAAXVQString@@@Z
         2B82 ?slicingDone@Netlib@@QEBA_NXZ
         2B82 __imp_?slicingDone@Netlib@@QEBA_NXZ
         2A04 ?setSlicingDone@Netlib@@QEAAX_N@Z
         2A04 __imp_?setSlicingDone@Netlib@@QEAAX_N@Z
         24BE ?init@Netlib@@AEAAXXZ
         24BE __imp_?init@Netlib@@AEAAXXZ
         22AA ?getOsName@Netlib@@AEAA?AVQString@@XZ
         22AA __imp_?getOsName@Netlib@@AEAA?AVQString@@XZ
         2090 ?discoveryFinished@Netlib@@AEAAXXZ
         2090 __imp_?discoveryFinished@Netlib@@AEAAXXZ
         2B06 ?slicerFinished@Netlib@@AEAAXXZ
         2B06 __imp_?slicerFinished@Netlib@@AEAAXXZ
         1F80 ?agentLogReady@Netlib@@AEAAXXZ
         1F80 __imp_?agentLogReady@Netlib@@AEAAXXZ
         2430 ?handleSlicingInProgressChanged@Netlib@@AEAAX_N@Z
         2430 __imp_?handleSlicingInProgressChanged@Netlib@@AEAAX_N@Z
         232C ?getSlicerProgress@Netlib@@AEAAXXZ
         232C __imp_?getSlicerProgress@Netlib@@AEAAXXZ
         23AA ?getSlicerProgressFinished@Netlib@@AEAAXXZ
         23AA __imp_?getSlicerProgressFinished@Netlib@@AEAAXXZ
         1E9A __imp_??_7Netlib@@6B@
         2636 ?metaObject@Netlib@@UEBAPEBUQMetaObject@@XZ
         2636 __imp_?metaObject@Netlib@@UEBAPEBUQMetaObject@@XZ
         2752 ?qt_metacast@Netlib@@UEAAPEAXPEBD@Z
         2752 __imp_?qt_metacast@Netlib@@UEAAPEAXPEBD@Z
         26BE ?qt_metacall@Netlib@@UEAAHW4Call@QMetaObject@@HPEAPEAX@Z
         26BE __imp_?qt_metacall@Netlib@@UEAAHW4Call@QMetaObject@@HPEAPEAX@Z
         27D2 ?qt_static_metacall@Netlib@@CAXPEAVQObject@@W4Call@QMetaObject@@HPEAPEAX@Z
         27D2 __imp_?qt_static_metacall@Netlib@@CAXPEAVQObject@@W4Call@QMetaObject@@HPEAPEAX@Z
         2190 ?discoveryInProgressChanged@Netlib@@QEAAX_N@Z
         2190 __imp_?discoveryInProgressChanged@Netlib@@QEAAX_N@Z
         221A ?discoveryResultChanged@Netlib@@QEAAXVQJsonArray@@@Z
         221A __imp_?discoveryResultChanged@Netlib@@QEAAXVQJsonArray@@@Z
         2CFE ?slicingInProgressChanged@Netlib@@QEAAX_N@Z
         2CFE __imp_?slicingInProgressChanged@Netlib@@QEAAX_N@Z
         25B0 ?layerIDChanged@Netlib@@QEAAXVQString@@@Z
         25B0 __imp_?layerIDChanged@Netlib@@QEAAXVQString@@@Z
         2BFC ?slicingDoneChanged@Netlib@@QEAAX_N@Z
         2BFC __imp_?slicingDoneChanged@Netlib@@QEAAX_N@Z
         2D86 __imp_?staticMetaObject@Netlib@@2UQMetaObject@@B
    
    Archive member name at C82: /
    FFFFFFFF time/date
             uid
             gid
           0 mode
         C4B size
    correct header end
    
        37 offsets
    
            1     190A
            2     1B30
            3     1C66
            4     2878
            5     2E0C
            6     2E8A
            7     1DBE
            8     1E2C
            9     1F06
            A     1FFA
            B     210E
            C     28FC
            D     2C7E
            E     2A82
            F     2530
           10     2982
           11     2B82
           12     2A04
           13     24BE
           14     22AA
           15     2090
           16     2B06
           17     1F80
           18     2430
           19     232C
           1A     23AA
           1B     1E9A
           1C     2636
           1D     2752
           1E     26BE
           1F     27D2
           20     2190
           21     221A
           22     2CFE
           23     25B0
           24     2BFC
           25     2D86
    
        69 public symbols
    
            7 ??0Netlib@@QEAA@XZ
            8 ??1Netlib@@UEAA@XZ
            9 ?agentDiscover@Netlib@@QEAAXXZ
           17 ?agentLogReady@Netlib@@AEAAXXZ
            A ?agentSlice@Netlib@@QEAA_NAEBVQUrl@@AEBVQString@@V3@222@Z
           15 ?discoveryFinished@Netlib@@AEAAXXZ
            B ?discoveryInProgress@Netlib@@QEBA_NXZ
           20 ?discoveryInProgressChanged@Netlib@@QEAAX_N@Z
           21 ?discoveryResultChanged@Netlib@@QEAAXVQJsonArray@@@Z
           14 ?getOsName@Netlib@@AEAA?AVQString@@XZ
           19 ?getSlicerProgress@Netlib@@AEAAXXZ
           1A ?getSlicerProgressFinished@Netlib@@AEAAXXZ
           18 ?handleSlicingInProgressChanged@Netlib@@AEAAX_N@Z
           13 ?init@Netlib@@AEAAXXZ
            F ?layerID@Netlib@@QEBA?AVQString@@XZ
           23 ?layerIDChanged@Netlib@@QEAAXVQString@@@Z
           1C ?metaObject@Netlib@@UEBAPEBUQMetaObject@@XZ
           1E ?qt_metacall@Netlib@@UEAAHW4Call@QMetaObject@@HPEAPEAX@Z
           1D ?qt_metacast@Netlib@@UEAAPEAXPEBD@Z
           1F ?qt_static_metacall@Netlib@@CAXPEAVQObject@@W4Call@QMetaObject@@HPEAPEAX@Z
            4 ?registerNetLibraryQML@NetLibrary@@YAXXZ
            C ?setDiscoveryInProgress@Netlib@@QEAAX_N@Z
           10 ?setLayerID@Netlib@@QEAAXVQString@@@Z
           12 ?setSlicingDone@Netlib@@QEAAX_N@Z
            E ?setSlicingInProgress@Netlib@@QEAAX_N@Z
           16 ?slicerFinished@Netlib@@AEAAXXZ
           11 ?slicingDone@Netlib@@QEBA_NXZ
           24 ?slicingDoneChanged@Netlib@@QEAAX_N@Z
            D ?slicingInProgress@Netlib@@QEBA_NXZ
           22 ?slicingInProgressChanged@Netlib@@QEAAX_N@Z
            5 ?tr@Netlib@@SA?AVQString@@PEBD0H@Z
            6 ?trUtf8@Netlib@@SA?AVQString@@PEBD0H@Z
            1 __IMPORT_DESCRIPTOR_netlib
            2 __NULL_IMPORT_DESCRIPTOR
            7 __imp_??0Netlib@@QEAA@XZ
            8 __imp_??1Netlib@@UEAA@XZ
           1B __imp_??_7Netlib@@6B@
            9 __imp_?agentDiscover@Netlib@@QEAAXXZ
           17 __imp_?agentLogReady@Netlib@@AEAAXXZ
            A __imp_?agentSlice@Netlib@@QEAA_NAEBVQUrl@@AEBVQString@@V3@222@Z
           15 __imp_?discoveryFinished@Netlib@@AEAAXXZ
            B __imp_?discoveryInProgress@Netlib@@QEBA_NXZ
           20 __imp_?discoveryInProgressChanged@Netlib@@QEAAX_N@Z
           21 __imp_?discoveryResultChanged@Netlib@@QEAAXVQJsonArray@@@Z
           14 __imp_?getOsName@Netlib@@AEAA?AVQString@@XZ
           19 __imp_?getSlicerProgress@Netlib@@AEAAXXZ
           1A __imp_?getSlicerProgressFinished@Netlib@@AEAAXXZ
           18 __imp_?handleSlicingInProgressChanged@Netlib@@AEAAX_N@Z
           13 __imp_?init@Netlib@@AEAAXXZ
            F __imp_?layerID@Netlib@@QEBA?AVQString@@XZ
           23 __imp_?layerIDChanged@Netlib@@QEAAXVQString@@@Z
           1C __imp_?metaObject@Netlib@@UEBAPEBUQMetaObject@@XZ
           1E __imp_?qt_metacall@Netlib@@UEAAHW4Call@QMetaObject@@HPEAPEAX@Z
           1D __imp_?qt_metacast@Netlib@@UEAAPEAXPEBD@Z
           1F __imp_?qt_static_metacall@Netlib@@CAXPEAVQObject@@W4Call@QMetaObject@@HPEAPEAX@Z
            4 __imp_?registerNetLibraryQML@NetLibrary@@YAXXZ
            C __imp_?setDiscoveryInProgress@Netlib@@QEAAX_N@Z
           10 __imp_?setLayerID@Netlib@@QEAAXVQString@@@Z
           12 __imp_?setSlicingDone@Netlib@@QEAAX_N@Z
            E __imp_?setSlicingInProgress@Netlib@@QEAAX_N@Z
           16 __imp_?slicerFinished@Netlib@@AEAAXXZ
           11 __imp_?slicingDone@Netlib@@QEBA_NXZ
           24 __imp_?slicingDoneChanged@Netlib@@QEAAX_N@Z
            D __imp_?slicingInProgress@Netlib@@QEBA_NXZ
           22 __imp_?slicingInProgressChanged@Netlib@@QEAAX_N@Z
           25 __imp_?staticMetaObject@Netlib@@2UQMetaObject@@B
            5 __imp_?tr@Netlib@@SA?AVQString@@PEBD0H@Z
            6 __imp_?trUtf8@Netlib@@SA?AVQString@@PEBD0H@Z
            3 netlib_NULL_THUNK_DATA
    
      Summary
    
              C0 .debug$S
              14 .idata$2
              14 .idata$3
               8 .idata$4
               8 .idata$5
               C .idata$6
    
    1 Reply Last reply
    0
    • Christian EhrlicherC Christian Ehrlicher

      I've no idea - does the linker really links against the import lib? Are other functions from within the library are resolved?

      M Offline
      M Offline
      m3g1dd
      wrote on last edited by
      #14

      @Christian-Ehrlicher

      Thanks! Yes, other functions of netlib are linked fine. I will update if I figure out the cause :)

      1 Reply Last reply
      0
      • hskoglundH Offline
        hskoglundH Offline
        hskoglund
        wrote on last edited by
        #15

        Hi, just to check, what version of MSVC did you use for Qt 5.11.3 (when the linking worked), was it MSVC 2017 32-bit or MSVC 2017 64-bit?

        M 1 Reply Last reply
        0
        • hskoglundH hskoglund

          Hi, just to check, what version of MSVC did you use for Qt 5.11.3 (when the linking worked), was it MSVC 2017 32-bit or MSVC 2017 64-bit?

          M Offline
          M Offline
          m3g1dd
          wrote on last edited by
          #16

          @hskoglund

          Hi! Thanks for follow up :)

          For Qt 5.11.3 I'm using MSVC2017_64bit which works fine. My build directories are:

          build-application-Desktop_Qt_5_11_3_MSVC2017_64bit-Debug
          build-application-Desktop_Qt_5_11_3_MSVC2017_64bit-Release
          build-application-Desktop_Qt_5_12_1_MSVC2017_64bit-Debug
          
          1 Reply Last reply
          0
          • M Offline
            M Offline
            m3g1dd
            wrote on last edited by m3g1dd
            #17

            New observation: I installed Qt5.12.0 and my application compiles/links/runs just fine. I'm going to re-install Qt5.12.1 ... I have a feeling maybe re-installing it will resolve linker errors ... lets see ...

            1 Reply Last reply
            0
            • M Offline
              M Offline
              m3g1dd
              wrote on last edited by
              #18

              I reinstalled Qt 5.12.1 but it still throws the above-mentioned linker error. So basically, my observation is:

              1. On Windows, Qt 5.11.3 and 5.12.0 work fine
              2. On Windows, Qt 5.12.1 throws linker error
              3. On Linux openSUSE Leap 15, Qt 5.12.1 works fine
              1 Reply Last reply
              0
              • hskoglundH Offline
                hskoglundH Offline
                hskoglund
                wrote on last edited by
                #19

                Hmm, just to check again: release builds and debug builds on 5.12.0 MSVC 2017 links fine and dandy, but the same linker throws a tantrum both for release and debug builds on 5.12.1 MSVC 2017.

                Also, could do you a similar dumpbin on a 5.12.0 debug built netlib.lib as you did above for a 5.12.1 debug build?

                M 2 Replies Last reply
                2
                • hskoglundH hskoglund

                  Hmm, just to check again: release builds and debug builds on 5.12.0 MSVC 2017 links fine and dandy, but the same linker throws a tantrum both for release and debug builds on 5.12.1 MSVC 2017.

                  Also, could do you a similar dumpbin on a 5.12.0 debug built netlib.lib as you did above for a 5.12.1 debug build?

                  M Offline
                  M Offline
                  m3g1dd
                  wrote on last edited by
                  #20

                  @hskoglund

                  Let me double-check everything again ... I'll give an update ...

                  1 Reply Last reply
                  0
                  • hskoglundH hskoglund

                    Hmm, just to check again: release builds and debug builds on 5.12.0 MSVC 2017 links fine and dandy, but the same linker throws a tantrum both for release and debug builds on 5.12.1 MSVC 2017.

                    Also, could do you a similar dumpbin on a 5.12.0 debug built netlib.lib as you did above for a 5.12.1 debug build?

                    M Offline
                    M Offline
                    m3g1dd
                    wrote on last edited by
                    #21

                    @hskoglund

                    I double-checked to make sure nothing is missed:

                    1. Qt_5_12_0_MSVC2017_64bit-Debug links fine and application runs :)
                    2. Qt_5_12_0_MSVC2017_64bit-Release links fine and application runs :)
                    3. Qt_5_12_1_MSVC2017_64bit-Debug throws:

                    main.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) void __cdecl NetLibrary::registerNetLibraryQML(void)" (_imp?registerNetLibraryQML@NetLibrary@@YAXXZ) referenced in function main

                    1. Qt_5_12_1_MSVC2017_64bit-Release throws:

                    main.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) void __cdecl NetLibrary::registerNetLibraryQML(void)" (_imp?registerNetLibraryQML@NetLibrary@@YAXXZ) referenced in function main


                    Also, here is the dumpbin for netlib.lib on Qt_5_12_0_MSVC2017_64bit-Debug which links fine and works nice:

                    C:\Users\me\repos\build-application-Desktop_Qt_5_12_0_MSVC2017_64bit-Debug\netlib\debug>dumpbin /linkermember netlib.lib
                    Microsoft (R) COFF/PE Dumper Version 14.15.26730.0
                    Copyright (C) Microsoft Corporation.  All rights reserved.
                    
                    
                    Dump of file netlib.lib
                    
                    File Type: LIBRARY
                    
                    Archive member name at 8: /
                    FFFFFFFF time/date
                             uid
                             gid
                           0 mode
                         C3D size
                    correct header end
                    
                        69 public symbols
                    
                         190A __IMPORT_DESCRIPTOR_netlib
                         1B30 __NULL_IMPORT_DESCRIPTOR
                         1C66 netlib_NULL_THUNK_DATA
                         2878 ?registerNetLibraryQML@NetLibrary@@YAXXZ
                         2878 __imp_?registerNetLibraryQML@NetLibrary@@YAXXZ
                         2E0C ?tr@Netlib@@SA?AVQString@@PEBD0H@Z
                         2E0C __imp_?tr@Netlib@@SA?AVQString@@PEBD0H@Z
                         2E8A ?trUtf8@Netlib@@SA?AVQString@@PEBD0H@Z
                         2E8A __imp_?trUtf8@Netlib@@SA?AVQString@@PEBD0H@Z
                         1DBE ??0Netlib@@QEAA@XZ
                         1DBE __imp_??0Netlib@@QEAA@XZ
                         1E2C ??1Netlib@@UEAA@XZ
                         1E2C __imp_??1Netlib@@UEAA@XZ
                         1F06 ?agentDiscover@Netlib@@QEAAXXZ
                         1F06 __imp_?agentDiscover@Netlib@@QEAAXXZ
                         1FFA ?agentSlice@Netlib@@QEAA_NAEBVQUrl@@AEBVQString@@V3@222@Z
                         1FFA __imp_?agentSlice@Netlib@@QEAA_NAEBVQUrl@@AEBVQString@@V3@222@Z
                         210E ?discoveryInProgress@Netlib@@QEBA_NXZ
                         210E __imp_?discoveryInProgress@Netlib@@QEBA_NXZ
                         28FC ?setDiscoveryInProgress@Netlib@@QEAAX_N@Z
                         28FC __imp_?setDiscoveryInProgress@Netlib@@QEAAX_N@Z
                         2C7E ?slicingInProgress@Netlib@@QEBA_NXZ
                         2C7E __imp_?slicingInProgress@Netlib@@QEBA_NXZ
                         2A82 ?setSlicingInProgress@Netlib@@QEAAX_N@Z
                         2A82 __imp_?setSlicingInProgress@Netlib@@QEAAX_N@Z
                         2530 ?layerID@Netlib@@QEBA?AVQString@@XZ
                         2530 __imp_?layerID@Netlib@@QEBA?AVQString@@XZ
                         2982 ?setLayerID@Netlib@@QEAAXVQString@@@Z
                         2982 __imp_?setLayerID@Netlib@@QEAAXVQString@@@Z
                         2B82 ?slicingDone@Netlib@@QEBA_NXZ
                         2B82 __imp_?slicingDone@Netlib@@QEBA_NXZ
                         2A04 ?setSlicingDone@Netlib@@QEAAX_N@Z
                         2A04 __imp_?setSlicingDone@Netlib@@QEAAX_N@Z
                         24BE ?init@Netlib@@AEAAXXZ
                         24BE __imp_?init@Netlib@@AEAAXXZ
                         22AA ?getOsName@Netlib@@AEAA?AVQString@@XZ
                         22AA __imp_?getOsName@Netlib@@AEAA?AVQString@@XZ
                         2090 ?discoveryFinished@Netlib@@AEAAXXZ
                         2090 __imp_?discoveryFinished@Netlib@@AEAAXXZ
                         2B06 ?slicerFinished@Netlib@@AEAAXXZ
                         2B06 __imp_?slicerFinished@Netlib@@AEAAXXZ
                         1F80 ?agentLogReady@Netlib@@AEAAXXZ
                         1F80 __imp_?agentLogReady@Netlib@@AEAAXXZ
                         2430 ?handleSlicingInProgressChanged@Netlib@@AEAAX_N@Z
                         2430 __imp_?handleSlicingInProgressChanged@Netlib@@AEAAX_N@Z
                         232C ?getSlicerProgress@Netlib@@AEAAXXZ
                         232C __imp_?getSlicerProgress@Netlib@@AEAAXXZ
                         23AA ?getSlicerProgressFinished@Netlib@@AEAAXXZ
                         23AA __imp_?getSlicerProgressFinished@Netlib@@AEAAXXZ
                         1E9A __imp_??_7Netlib@@6B@
                         2636 ?metaObject@Netlib@@UEBAPEBUQMetaObject@@XZ
                         2636 __imp_?metaObject@Netlib@@UEBAPEBUQMetaObject@@XZ
                         2752 ?qt_metacast@Netlib@@UEAAPEAXPEBD@Z
                         2752 __imp_?qt_metacast@Netlib@@UEAAPEAXPEBD@Z
                         26BE ?qt_metacall@Netlib@@UEAAHW4Call@QMetaObject@@HPEAPEAX@Z
                         26BE __imp_?qt_metacall@Netlib@@UEAAHW4Call@QMetaObject@@HPEAPEAX@Z
                         27D2 ?qt_static_metacall@Netlib@@CAXPEAVQObject@@W4Call@QMetaObject@@HPEAPEAX@Z
                         27D2 __imp_?qt_static_metacall@Netlib@@CAXPEAVQObject@@W4Call@QMetaObject@@HPEAPEAX@Z
                         2190 ?discoveryInProgressChanged@Netlib@@QEAAX_N@Z
                         2190 __imp_?discoveryInProgressChanged@Netlib@@QEAAX_N@Z
                         221A ?discoveryResultChanged@Netlib@@QEAAXVQJsonArray@@@Z
                         221A __imp_?discoveryResultChanged@Netlib@@QEAAXVQJsonArray@@@Z
                         2CFE ?slicingInProgressChanged@Netlib@@QEAAX_N@Z
                         2CFE __imp_?slicingInProgressChanged@Netlib@@QEAAX_N@Z
                         25B0 ?layerIDChanged@Netlib@@QEAAXVQString@@@Z
                         25B0 __imp_?layerIDChanged@Netlib@@QEAAXVQString@@@Z
                         2BFC ?slicingDoneChanged@Netlib@@QEAAX_N@Z
                         2BFC __imp_?slicingDoneChanged@Netlib@@QEAAX_N@Z
                         2D86 __imp_?staticMetaObject@Netlib@@2UQMetaObject@@B
                    
                    Archive member name at C82: /
                    FFFFFFFF time/date
                             uid
                             gid
                           0 mode
                         C4B size
                    correct header end
                    
                        37 offsets
                    
                            1     190A
                            2     1B30
                            3     1C66
                            4     2878
                            5     2E0C
                            6     2E8A
                            7     1DBE
                            8     1E2C
                            9     1F06
                            A     1FFA
                            B     210E
                            C     28FC
                            D     2C7E
                            E     2A82
                            F     2530
                           10     2982
                           11     2B82
                           12     2A04
                           13     24BE
                           14     22AA
                           15     2090
                           16     2B06
                           17     1F80
                           18     2430
                           19     232C
                           1A     23AA
                           1B     1E9A
                           1C     2636
                           1D     2752
                           1E     26BE
                           1F     27D2
                           20     2190
                           21     221A
                           22     2CFE
                           23     25B0
                           24     2BFC
                           25     2D86
                    
                        69 public symbols
                    
                            7 ??0Netlib@@QEAA@XZ
                            8 ??1Netlib@@UEAA@XZ
                            9 ?agentDiscover@Netlib@@QEAAXXZ
                           17 ?agentLogReady@Netlib@@AEAAXXZ
                            A ?agentSlice@Netlib@@QEAA_NAEBVQUrl@@AEBVQString@@V3@222@Z
                           15 ?discoveryFinished@Netlib@@AEAAXXZ
                            B ?discoveryInProgress@Netlib@@QEBA_NXZ
                           20 ?discoveryInProgressChanged@Netlib@@QEAAX_N@Z
                           21 ?discoveryResultChanged@Netlib@@QEAAXVQJsonArray@@@Z
                           14 ?getOsName@Netlib@@AEAA?AVQString@@XZ
                           19 ?getSlicerProgress@Netlib@@AEAAXXZ
                           1A ?getSlicerProgressFinished@Netlib@@AEAAXXZ
                           18 ?handleSlicingInProgressChanged@Netlib@@AEAAX_N@Z
                           13 ?init@Netlib@@AEAAXXZ
                            F ?layerID@Netlib@@QEBA?AVQString@@XZ
                           23 ?layerIDChanged@Netlib@@QEAAXVQString@@@Z
                           1C ?metaObject@Netlib@@UEBAPEBUQMetaObject@@XZ
                           1E ?qt_metacall@Netlib@@UEAAHW4Call@QMetaObject@@HPEAPEAX@Z
                           1D ?qt_metacast@Netlib@@UEAAPEAXPEBD@Z
                           1F ?qt_static_metacall@Netlib@@CAXPEAVQObject@@W4Call@QMetaObject@@HPEAPEAX@Z
                            4 ?registerNetLibraryQML@NetLibrary@@YAXXZ
                            C ?setDiscoveryInProgress@Netlib@@QEAAX_N@Z
                           10 ?setLayerID@Netlib@@QEAAXVQString@@@Z
                           12 ?setSlicingDone@Netlib@@QEAAX_N@Z
                            E ?setSlicingInProgress@Netlib@@QEAAX_N@Z
                           16 ?slicerFinished@Netlib@@AEAAXXZ
                           11 ?slicingDone@Netlib@@QEBA_NXZ
                           24 ?slicingDoneChanged@Netlib@@QEAAX_N@Z
                            D ?slicingInProgress@Netlib@@QEBA_NXZ
                           22 ?slicingInProgressChanged@Netlib@@QEAAX_N@Z
                            5 ?tr@Netlib@@SA?AVQString@@PEBD0H@Z
                            6 ?trUtf8@Netlib@@SA?AVQString@@PEBD0H@Z
                            1 __IMPORT_DESCRIPTOR_netlib
                            2 __NULL_IMPORT_DESCRIPTOR
                            7 __imp_??0Netlib@@QEAA@XZ
                            8 __imp_??1Netlib@@UEAA@XZ
                           1B __imp_??_7Netlib@@6B@
                            9 __imp_?agentDiscover@Netlib@@QEAAXXZ
                           17 __imp_?agentLogReady@Netlib@@AEAAXXZ
                            A __imp_?agentSlice@Netlib@@QEAA_NAEBVQUrl@@AEBVQString@@V3@222@Z
                           15 __imp_?discoveryFinished@Netlib@@AEAAXXZ
                            B __imp_?discoveryInProgress@Netlib@@QEBA_NXZ
                           20 __imp_?discoveryInProgressChanged@Netlib@@QEAAX_N@Z
                           21 __imp_?discoveryResultChanged@Netlib@@QEAAXVQJsonArray@@@Z
                           14 __imp_?getOsName@Netlib@@AEAA?AVQString@@XZ
                           19 __imp_?getSlicerProgress@Netlib@@AEAAXXZ
                           1A __imp_?getSlicerProgressFinished@Netlib@@AEAAXXZ
                           18 __imp_?handleSlicingInProgressChanged@Netlib@@AEAAX_N@Z
                           13 __imp_?init@Netlib@@AEAAXXZ
                            F __imp_?layerID@Netlib@@QEBA?AVQString@@XZ
                           23 __imp_?layerIDChanged@Netlib@@QEAAXVQString@@@Z
                           1C __imp_?metaObject@Netlib@@UEBAPEBUQMetaObject@@XZ
                           1E __imp_?qt_metacall@Netlib@@UEAAHW4Call@QMetaObject@@HPEAPEAX@Z
                           1D __imp_?qt_metacast@Netlib@@UEAAPEAXPEBD@Z
                           1F __imp_?qt_static_metacall@Netlib@@CAXPEAVQObject@@W4Call@QMetaObject@@HPEAPEAX@Z
                            4 __imp_?registerNetLibraryQML@NetLibrary@@YAXXZ
                            C __imp_?setDiscoveryInProgress@Netlib@@QEAAX_N@Z
                           10 __imp_?setLayerID@Netlib@@QEAAXVQString@@@Z
                           12 __imp_?setSlicingDone@Netlib@@QEAAX_N@Z
                            E __imp_?setSlicingInProgress@Netlib@@QEAAX_N@Z
                           16 __imp_?slicerFinished@Netlib@@AEAAXXZ
                           11 __imp_?slicingDone@Netlib@@QEBA_NXZ
                           24 __imp_?slicingDoneChanged@Netlib@@QEAAX_N@Z
                            D __imp_?slicingInProgress@Netlib@@QEBA_NXZ
                           22 __imp_?slicingInProgressChanged@Netlib@@QEAAX_N@Z
                           25 __imp_?staticMetaObject@Netlib@@2UQMetaObject@@B
                            5 __imp_?tr@Netlib@@SA?AVQString@@PEBD0H@Z
                            6 __imp_?trUtf8@Netlib@@SA?AVQString@@PEBD0H@Z
                            3 netlib_NULL_THUNK_DATA
                    
                      Summary
                    
                              C0 .debug$S
                              14 .idata$2
                              14 .idata$3
                               8 .idata$4
                               8 .idata$5
                               C .idata$6
                    
                    1 Reply Last reply
                    0
                    • hskoglundH Offline
                      hskoglundH Offline
                      hskoglund
                      wrote on last edited by
                      #22

                      Hi, the dumpbin for 5.12.1 is identical to 5.12.0. Seems netlib.lib is the innocent guy here. So it must be the client program, i.e. your main.cpp, perhaps some kind of visibility problem. We're running out of options so I'm thinking you could try renaming your library to something less generic/vanilla (there are many other libraries called netlib.xxx out there, perhaps one of them has snuck into in 5.12.1)

                      So say instead of netlib you could call it m3gnetlib (prefixing with half of your username).
                      That would mean changing the .pro file, the .h and .cpp files and also the #define from NETLIBSHARED_EXPORT to M3GNETLIBSHARED_EXPORT.

                      I remember running into similar inexplicable issues in the past, and renaming the files helped (sometimes :-)

                      1 Reply Last reply
                      2
                      • M Offline
                        M Offline
                        mchinand
                        wrote on last edited by mchinand
                        #23

                        In 5.12.1, default Windows library paths (e.g., Windows Kits) were added to the search path in qmake's makefile generator, but were added before the user-specified paths instead of after. There's already a commit to fix this and should be in 5.12.3. See this bugreport

                        1 Reply Last reply
                        4
                        • hskoglundH Offline
                          hskoglundH Offline
                          hskoglund
                          wrote on last edited by
                          #24

                          Thanks @mchinand!

                          In Qt 5.12.1 @m3g1dd 's netlib.lib gets muscled out by the big wheels at Microsoft, when I do a dir of the Windows Kits on my C: indeed there's a netlib.lib there. And that's what the linker tries to link with.

                          So either as I mentioned above go do that renaming, or wait for 5.12.3.

                          M 1 Reply Last reply
                          3
                          • hskoglundH hskoglund

                            Thanks @mchinand!

                            In Qt 5.12.1 @m3g1dd 's netlib.lib gets muscled out by the big wheels at Microsoft, when I do a dir of the Windows Kits on my C: indeed there's a netlib.lib there. And that's what the linker tries to link with.

                            So either as I mentioned above go do that renaming, or wait for 5.12.3.

                            M Offline
                            M Offline
                            m3g1dd
                            wrote on last edited by m3g1dd
                            #25

                            @hskoglund

                            Hi, Thanks! Problem got resolved by renaming the netlib library to netagentlib, and Qt 5.12.1 builds and runs the application without any issue.

                            These are all my code changes to rename the library:

                            On my netlib library project file i.e. netlib.pro file I changed:

                            -TARGET = netlib
                            +TARGET = netagentlib
                            

                            Also, on my application executable project *.pro file I replaced these lines:

                            win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../netlib/release/ -lnetlib
                            else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../netlib/debug/ -lnetlib
                            else:unix: LIBS += -L$$OUT_PWD/../netlib/ -lnetlib
                            

                            with these lines:

                            win32:CONFIG(release, debug|release): LIBS += -L$$OUT_PWD/../netlib/release/ -lnetagentlib
                            else:win32:CONFIG(debug, debug|release): LIBS += -L$$OUT_PWD/../netlib/debug/ -lnetagentlib
                            else:unix: LIBS += -L$$OUT_PWD/../netlib/ -lnetagentlib
                            
                            1 Reply Last reply
                            2

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