After upgrading the windows build environment to VS2022, I got the following
linker error:
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]
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]
Creating library C:/fechen/gdal-3.8.4/build/Debug/gdald.lib and object
C:/fechen/gdal-3.8.4/build/Debug/gdald.exp
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]
I set “GDAL_USE_JPEG_INTERNAL” with “ON”. Any suggestions?
Thanks!
From: Even Rouault <[email protected]>
Date: Tuesday, March 12, 2024 at 12:56 PM
To: Fengting Chen <[email protected]>, [email protected]
<[email protected]>
Subject: Re: [gdal-dev] FW: [External] : GDAL 3.8.4 build on windows failed at
linking
Not the answer you'll probably want to hear, but:
- Use an up-to-date compiler
- Use package distributions like vcpkg or conda-forge that already brings all
the dependencies "for free"
- It seems you mix builds of different compilers (VS vs mingw). That's a bit
asking for troubles ;-)
Le 12/03/2024 à 17:48, Fengting Chen via gdal-dev a écrit :
Resend with more information:
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” .
Any idea how to fix this?
Thanks!
From: gdal-dev
<[email protected]><mailto:[email protected]> on
behalf of Fengting Chen via gdal-dev
<[email protected]><mailto:[email protected]>
Date: Monday, March 11, 2024 at 4:50 PM
To: [email protected]<mailto:[email protected]>
<[email protected]><mailto:[email protected]>
Subject: [External] : [gdal-dev] GDAL 3.8.4 build on windows failed at linking
GDAL 3.8.4 build on Windows from VS2015 x64 command prompt: “cmake –build .”
throws the following error (there are more similar errors):
cpl_vsil_az.obj : error LNK2001: unresolved external symbol
__imp__curl_slist_append [E:\gdal-3.8.4\build\GDAL.vcxproj]
cmake options has:
set (GDAL_USE_CURL ON CACHE BOOL "" FORCE)
set (CURL_INCLUDE_DIR "E:/SDK/curl-8.6.0_1-win64-mingw/include"
CACHE PATH "" FORCE)
set (CURL_LIBRARY_RELEASE
"E:/SDK/curl-8.6.0_1-win64-mingw/bin/libcurl-x64.lib" CACHE FILEPATH "" FORCE)
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.
Any idea why this error occurred?
Thanks!
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