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    <p>Hi,</p>
    <p>possibly already fixed in master with commit
      <a class="moz-txt-link-freetext" href="https://github.com/OSGeo/gdal/commit/849226ce1a9">https://github.com/OSGeo/gdal/commit/849226ce1a9</a></p>
    <p>Even<br>
    </p>
    <div class="moz-cite-prefix">Le 14/03/2024 à 16:47, Fengting Chen a
      écrit :<br>
    </div>
    <blockquote type="cite"
cite="mid:PH0PR10MB706152FE70462BD16683828C93292@PH0PR10MB7061.namprd10.prod.outlook.com">
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        <p class="MsoNormal"><span
            style="font-family:"Aptos",sans-serif">After
            upgrading the windows build environment to VS2022, I got the
            following linker error:
            <o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-family:"Aptos",sans-serif"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
            style="font-family:"Aptos",sans-serif">vsidataio.obj
            : error LNK2005: "void __cdecl jpeg_vsiio_src(struct
            jpeg_decompress_struct *,struct VSIVirtualHandle *)"
(?jpeg_vsiio_src@@YAXPEAUjpeg_decompress_struct@@PEAUVSIVirtualHandle@@@Z)
            already defined in vsidataio.obj
            [C:\fechen\gdal-3.8.4\build\GDAL.vcxproj]<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-family:"Aptos",sans-serif">vsidataio.obj
            : error LNK2005: "void __cdecl jpeg_vsiio_dest(struct
            jpeg_compress_struct *,struct VSIVirtualHandle *)"
(?jpeg_vsiio_dest@@YAXPEAUjpeg_compress_struct@@PEAUVSIVirtualHandle@@@Z)
            already defined in vsidataio.obj
            [C:\fechen\gdal-3.8.4\build\GDAL.vcxproj]<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-family:"Aptos",sans-serif">    
            Creating library C:/fechen/gdal-3.8.4/build/Debug/gdald.lib
            and object C:/fechen/gdal-3.8.4/build/Debug/gdald.exp<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-family:"Aptos",sans-serif">C:\fechen\gdal-3.8.4\build\Debug\gdald.dll
            : fatal error LNK1169: one or more multiply defined symbols
            found [C:\fechen\gdal-3.8.4\build\GDAL.vcxproj]<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-family:"Aptos",sans-serif"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
            style="font-family:"Aptos",sans-serif">I set
            “GDAL_USE_JPEG_INTERNAL”  with “ON”. Any suggestions?<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-family:"Aptos",sans-serif"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
            style="font-family:"Aptos",sans-serif">Thanks!<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            style="font-family:"Aptos",sans-serif"><o:p> </o:p></span></p>
        <div id="mail-editor-reference-message-container">
          <div>
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              <p class="MsoNormal" style="margin-bottom:12.0pt"><b><span
style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">From:
                  </span></b><span
style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">Even
                  Rouault <a class="moz-txt-link-rfc2396E" href="mailto:even.rouault@spatialys.com"><even.rouault@spatialys.com></a><br>
                  <b>Date: </b>Tuesday, March 12, 2024 at 12:56</span><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black"> </span><span
style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">PM<br>
                  <b>To: </b>Fengting Chen
                  <a class="moz-txt-link-rfc2396E" href="mailto:fengting.chen@oracle.com"><fengting.chen@oracle.com></a>,
                  <a class="moz-txt-link-abbreviated" href="mailto:gdal-dev@lists.osgeo.org">gdal-dev@lists.osgeo.org</a>
                  <a class="moz-txt-link-rfc2396E" href="mailto:gdal-dev@lists.osgeo.org"><gdal-dev@lists.osgeo.org></a><br>
                  <b>Subject: </b>Re: [gdal-dev] FW: [External] : GDAL
                  3.8.4 build on windows failed at linking<o:p></o:p></span></p>
            </div>
            <p>Not the answer you'll probably want to hear, but:<o:p></o:p></p>
            <p>- Use an up-to-date compiler<o:p></o:p></p>
            <p>- Use package distributions like vcpkg or conda-forge
              that already brings all the dependencies "for free"<o:p></o:p></p>
            <p>- It seems you mix builds of different compilers (VS vs
              mingw). That's a bit asking for troubles ;-)<o:p></o:p></p>
            <div>
              <p class="MsoNormal">Le 12/03/2024 à 17:48, Fengting Chen
                via gdal-dev a écrit :<o:p></o:p></p>
            </div>
            <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
              <div>
                <p class="MsoNormal"><span
                    style="font-family:"Aptos",sans-serif">Resend
                    with more information:
                  </span><o:p></o:p></p>
                <p class="MsoNormal"><span
                    style="font-family:"Aptos",sans-serif"> </span><o:p></o:p></p>
                <p class="MsoNormal"><span
                    style="font-family:"Aptos",sans-serif">I
                    am trying to build GDAL 3.8.4 on windows under
                    VS2015. The build failed at linking stage that a
                    bunch of external symbols not found, specifically
                    the symbols in libproj, libcurl. I checked the dll
                    library stub .lib for libproj and libcurl using
                    “dumpbin” and found the symbols in the library a
                    little different, for example the linker error shows
                    “__imp__curl_slist_append” not found, the symbol
                    output from the “dumpbin” is
                     “__imp_curl_slist_append” . </span><o:p></o:p></p>
                <p class="MsoNormal"><span
                    style="font-family:"Aptos",sans-serif"> </span><o:p></o:p></p>
                <p class="MsoNormal"><span
                    style="font-family:"Aptos",sans-serif">Any
                    idea how to fix this?
                  </span><o:p></o:p></p>
                <p class="MsoNormal"><span
                    style="font-family:"Aptos",sans-serif"> </span><o:p></o:p></p>
                <p class="MsoNormal"><span
                    style="font-family:"Aptos",sans-serif">Thanks!</span><o:p></o:p></p>
                <p class="MsoNormal"><span
                    style="font-family:"Aptos",sans-serif"> </span><o:p></o:p></p>
                <div id="mail-editor-reference-message-container">
                  <div>
                    <div
style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
                      <p class="MsoNormal" style="margin-bottom:12.0pt"><b><span
style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">From:
                          </span></b><span
style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">gdal-dev
                          <a
href="mailto:gdal-dev-bounces@lists.osgeo.org" moz-do-not-send="true"><gdal-dev-bounces@lists.osgeo.org></a>
                          on behalf of Fengting Chen via gdal-dev
                          <a href="mailto:gdal-dev@lists.osgeo.org"
                            moz-do-not-send="true"><gdal-dev@lists.osgeo.org></a><br>
                          <b>Date: </b>Monday, March 11, 2024 at 4:50</span><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black"> </span><span
style="font-size:12.0pt;font-family:"Aptos",sans-serif;color:black">PM<br>
                          <b>To: </b><a
                            href="mailto:gdal-dev@lists.osgeo.org"
                            moz-do-not-send="true"
                            class="moz-txt-link-freetext">gdal-dev@lists.osgeo.org</a>
                          <a href="mailto:gdal-dev@lists.osgeo.org"
                            moz-do-not-send="true"><gdal-dev@lists.osgeo.org></a><br>
                          <b>Subject: </b>[External] : [gdal-dev] GDAL
                          3.8.4 build on windows failed at linking</span><o:p></o:p></p>
                    </div>
                    <div>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif">GDAL 3.8.4 build on
                          Windows from VS2015 x64 command prompt: “cmake
                          –build .” throws the following error (there
                          are more similar errors):
                        </span><o:p></o:p></p>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif">cpl_vsil_az.obj : error
                          LNK2001: unresolved external symbol
                          __imp__curl_slist_append
                          [E:\gdal-3.8.4\build\GDAL.vcxproj]</span><o:p></o:p></p>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif">cmake options has:</span><o:p></o:p></p>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif">set
                          (GDAL_USE_CURL                ON   CACHE  BOOL
                          "" FORCE)</span><o:p></o:p></p>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif">set
                          (CURL_INCLUDE_DIR            
                          "E:/SDK/curl-8.6.0_1-win64-mingw/include"
                          CACHE PATH "" FORCE)</span><o:p></o:p></p>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif">set
                          (CURL_LIBRARY_RELEASE        
                          "E:/SDK/curl-8.6.0_1-win64-mingw/bin/libcurl-x64.lib"
                          CACHE FILEPATH "" FORCE)</span><o:p></o:p></p>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif">libcurl-x64.lib is the
                          DLL stub. Using dumpbin on libcurl-x64.lib
                          shows that “__imp_curl_slist_append” is
                          available. But the linker error is
                          “__imp__curl_slist_append” not found. There is
                          an extra “_” in it. </span><o:p></o:p></p>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif">Any idea why this error
                          occurred?
                        </span><o:p></o:p></p>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif">Thanks!</span><o:p></o:p></p>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif"> </span><o:p></o:p></p>
                      <p class="MsoNormal"><span
style="font-family:"Aptos",sans-serif"> </span><o:p></o:p></p>
                    </div>
                  </div>
                </div>
              </div>
              <p class="MsoNormal"><br>
                <br>
                <o:p></o:p></p>
              <pre>_______________________________________________<o:p></o:p></pre>
              <pre>gdal-dev mailing list<o:p></o:p></pre>
              <pre><a href="mailto:gdal-dev@lists.osgeo.org"
              moz-do-not-send="true" class="moz-txt-link-freetext">gdal-dev@lists.osgeo.org</a><o:p></o:p></pre>
              <pre><a
href="https://urldefense.com/v3/__https:/lists.osgeo.org/mailman/listinfo/gdal-dev__;!!ACWV5N9M2RV99hQ!N8ZTSFcueASfCUE2XGRgmOMaX6fq5SFf-Tq25Un9Kws27WD09uZjzbSDMeAzmhzOrmz0mgSpFItXVTdprbA3RxpGPNVk$"
              moz-do-not-send="true">https://lists.osgeo.org/mailman/listinfo/gdal-dev</a><o:p></o:p></pre>
            </blockquote>
            <pre>-- <o:p></o:p></pre>
            <pre><a
href="https://urldefense.com/v3/__http:/www.spatialys.com__;!!ACWV5N9M2RV99hQ!N8ZTSFcueASfCUE2XGRgmOMaX6fq5SFf-Tq25Un9Kws27WD09uZjzbSDMeAzmhzOrmz0mgSpFItXVTdprbA3R_bZl290$"
            moz-do-not-send="true">http://www.spatialys.com</a><o:p></o:p></pre>
            <pre>My software is free, but my time generally not.<o:p></o:p></pre>
          </div>
        </div>
      </div>
    </blockquote>
    <pre class="moz-signature" cols="72">-- 
<a class="moz-txt-link-freetext" href="http://www.spatialys.com">http://www.spatialys.com</a>
My software is free, but my time generally not.</pre>
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