Linking failure on recent shared library build

[AnshulYbd]

Creating library C:/MySpace/Projects/mpeg2ts/build_dll/libs/mpeg2ts/Debug/mpeg2ts-d.lib and object C:/MySpace/Proj

ects/mpeg2ts/build_dll/libs/mpeg2ts/Debug/mpeg2ts-d.exp
mpeg2ts.vcxproj -> C:\MySpace\Projects\mpeg2ts\build_dll\libs\mpeg2ts\Debug\mpeg2ts-d.dll
Building Custom Rule C:/MySpace/Projects/mpeg2ts/samples/TsUtilities/CMakeLists.txt
main.cpp
LINK : fatal error LNK1104: cannot open file '....\libs\mpeg2codec\Debug\mpeg2codec-d.lib' [C:\MySpace\Projects\mpeg2t
s\build_dll\samples\TsUtilities\sample_tsutilities.vcxproj]

Manually copy the library

PS C:\MySpace\Projects\mpeg2ts\build_dll> cmake --build .
Microsoft (R) Build Engine version 17.2.1+52cd2da31 for .NET Framework
Copyright (C) Microsoft Corporation. All rights reserved.

common.vcxproj -> C:\MySpace\Projects\mpeg2ts\build_dll\libs\common\Debug\common-d.lib
h264codec.vcxproj -> C:\MySpace\Projects\mpeg2ts\build_dll\libs\h264codec\Debug\h264codec-d.dll
mpeg2codec.vcxproj -> C:\MySpace\Projects\mpeg2ts\build_dll\libs\mpeg2codec\Debug\mpeg2codec-d.dll
mpeg2ts.vcxproj -> C:\MySpace\Projects\mpeg2ts\build_dll\libs\mpeg2ts\Debug\mpeg2ts-d.dll
LINK : fatal error LNK1104: cannot open file '....\libs\mpeg2codec\Debug\mpeg2codec-d.lib' [C:\MySpace\Projects\mpeg2t
s\build_dll\samples\TsUtilities\sample_tsutilities.vcxproj]

Manually copy the library

PS C:\MySpace\Projects\mpeg2ts\build_dll> cmake --build .
Microsoft (R) Build Engine version 17.2.1+52cd2da31 for .NET Framework
Copyright (C) Microsoft Corporation. All rights reserved.

common.vcxproj -> C:\MySpace\Projects\mpeg2ts\build_dll\libs\common\Debug\common-d.lib
h264codec.vcxproj -> C:\MySpace\Projects\mpeg2ts\build_dll\libs\h264codec\Debug\h264codec-d.dll
mpeg2codec.vcxproj -> C:\MySpace\Projects\mpeg2ts\build_dll\libs\mpeg2codec\Debug\mpeg2codec-d.dll
mpeg2ts.vcxproj -> C:\MySpace\Projects\mpeg2ts\build_dll\libs\mpeg2ts\Debug\mpeg2ts-d.dll
LINK : fatal error LNK1104: cannot open file '....\libs\h264codec\Debug\h264codec-d.lib' [C:\MySpace\Projects\mpeg2ts
build_dll\samples\TsUtilities\sample_tsutilities.vcxproj]

Manually copy the library
PS C:\MySpace\Projects\mpeg2ts\build_dll> cmake --build .
Microsoft (R) Build Engine version 17.2.1+52cd2da31 for .NET Framework
Copyright (C) Microsoft Corporation. All rights reserved.

common.vcxproj -> C:\MySpace\Projects\mpeg2ts\build_dll\libs\common\Debug\common-d.lib
h264codec.vcxproj -> C:\MySpace\Projects\mpeg2ts\build_dll\libs\h264codec\Debug\h264codec-d.dll
mpeg2codec.vcxproj -> C:\MySpace\Projects\mpeg2ts\build_dll\libs\mpeg2codec\Debug\mpeg2codec-d.dll
mpeg2ts.vcxproj -> C:\MySpace\Projects\mpeg2ts\build_dll\libs\mpeg2ts\Debug\mpeg2ts-d.dll
mpeg2codec-d.lib(Mpeg2Codec.obj) : error LNK2019: unresolved external symbol "public: __cdecl GetBits::GetBits(void)" (
??0GetBits@@qeaa@XZ) referenced in function "public: __cdecl mpeg2::Mpeg2VideoEsParser::Mpeg2VideoEsParser(void)" (??0M
peg2VideoEsParser@mpeg2@@qeaa@XZ) [C:\MySpace\Projects\mpeg2ts\build_dll\samples\TsUtilities\sample_tsutilities.vcxproj
]
h264codec-d.lib(H264Codec.obj) : error LNK2001: unresolved external symbol "public: __cdecl GetBits::GetBits(void)" (??
0GetBits@@qeaa@XZ) [C:\MySpace\Projects\mpeg2ts\build_dll\samples\TsUtilities\sample_tsutilities.vcxproj]
mpeg2codec-d.lib(Mpeg2VideoParser.obj) : error LNK2019: unresolved external symbol "public: unsigned __int64 __cdecl Ge
tBits::getBits(int)" (?getBits@GetBits@@QEAA_KH@Z) referenced in function "public: class std::vector<struct mpeg2::EsIn
foMpeg2,class std::allocator > __cdecl mpeg2::Mpeg2VideoEsParser::analyze(void)" (?analyze@M
peg2VideoEsParser@mpeg2@@qeaa?AV?$vector@UEsInfoMpeg2@mpeg2@@v?$allocator@UEsInfoMpeg2@mpeg2@@@std@@@std@@xz) [C:\MySpa
ce\Projects\mpeg2ts\build_dll\samples\TsUtilities\sample_tsutilities.vcxproj]
h264codec-d.lib(H264Parser.obj) : error LNK2001: unresolved external symbol "public: unsigned __int64 __cdecl GetBits::
getBits(int)" (?getBits@GetBits@@QEAA_KH@Z) [C:\MySpace\Projects\mpeg2ts\build_dll\samples\TsUtilities\sample_tsutiliti
es.vcxproj]
mpeg2codec-d.lib(Mpeg2VideoParser.obj) : error LNK2019: unresolved external symbol "public: void __cdecl GetBits::reset
Bits(unsigned char const *,unsigned __int64,unsigned __int64)" (?resetBits@GetBits@@QEAAXPEBE_K1@Z) referenced in funct
ion "public: class std::vector<struct mpeg2::EsInfoMpeg2,class std::allocator > __cdecl mpeg
2::Mpeg2VideoEsParser::analyze(void)" (?analyze@Mpeg2VideoEsParser@mpeg2@@qeaa?AV?$vector@UEsInfoMpeg2@mpeg2@@v?$alloca
tor@UEsInfoMpeg2@mpeg2@@@std@@@std@@xz) [C:\MySpace\Projects\mpeg2ts\build_dll\samples\TsUtilities\sample_tsutilities.v
cxproj]
h264codec-d.lib(H264Parser.obj) : error LNK2001: unresolved external symbol "public: void __cdecl GetBits::resetBits(un
signed char const *,unsigned __int64,unsigned __int64)" (?resetBits@GetBits@@QEAAXPEBE_K1@Z) [C:\MySpace\Projects\mpeg2
ts\build_dll\samples\TsUtilities\sample_tsutilities.vcxproj]
mpeg2codec-d.lib(Mpeg2VideoParser.obj) : error LNK2019: unresolved external symbol "public: void __cdecl GetBits::skipB
its(int)" (?skipBits@GetBits@@QEAAXH@Z) referenced in function "public: class std::vector<struct mpeg2::EsInfoMpeg2,cla
ss std::allocator > __cdecl mpeg2::Mpeg2VideoEsParser::analyze(void)" (?analyze@Mpeg2VideoEs
Parser@mpeg2@@qeaa?AV?$vector@UEsInfoMpeg2@mpeg2@@v?$allocator@UEsInfoMpeg2@mpeg2@@@std@@@std@@xz) [C:\MySpace\Projects
\mpeg2ts\build_dll\samples\TsUtilities\sample_tsutilities.vcxproj]
h264codec-d.lib(H264Parser.obj) : error LNK2001: unresolved external symbol "public: void __cdecl GetBits::skipBits(int
)" (?skipBits@GetBits@@QEAAXH@Z) [C:\MySpace\Projects\mpeg2ts\build_dll\samples\TsUtilities\sample_tsutilities.vcxproj]
C:\MySpace\Projects\mpeg2ts\build_dll\samples\TsUtilities\Debug\sample_tsutilities.exe : fatal error LNK1120: 4 unresol
ved externals [C:\MySpace\Projects\mpeg2ts\build_dll\samples\TsUtilities\sample_tsutilities.vcxproj]
PS C:\MySpace\Projects\mpeg2ts\build_dll>

[kohnech]

Dear @AnshulYbd
Thanks for your Issue! I wonder which IDE you are using and if you used visual studio (also if you generate the visual studio solution file)?
How did you configure via CMake?

I can build and run the samples on Windows 10 with for example Visual Studio 2022 that supports CMake (You need install CMake support) so I am not sure how to reproduce your issue.

Thank you!
Kind regards
Kohnech