enable shared/static builds

[christian-rauch]

This adds build configurations for testing shared and static builds (BUILD_SHARED_LIBS ON or OFF) for all targets in the CI.

The most notable change here is that I had to remove the export header generation via GenerateExportHeader and export all symbols on Windows via CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS. Without this, it is not possible to build a shared Pangolin library as a lot of symbols cannot be resolved with the MSVC compiler.

I am not familiar with development with the MSVC compiler on windows. But I guess the proper solution would be to properly export those symbols by adding PANGOLIN_EXPORT to them.

LNK2019 errors:

pixel_format.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(struct pangolin::PixelFormat &&)" (__imp_??0PixelFormat@pangolin@@QEAA@$$QEAU01@@Z) referenced in function "public: static void __cdecl std::_Default_allocator_traits<class std::allocator<struct pangolin::PixelFormat> >::construct<struct pangolin::PixelFormat,struct pangolin::PixelFormat>(class std::allocator<struct pangolin::PixelFormat> &,struct pangolin::PixelFormat * const,struct pangolin::PixelFormat &&)" (??$construct@UPixelFormat@pangolin@@U12@@?$_Default_allocator_traits@V?$allocator@UPixelFormat@pangolin@@@std@@@std@@SAXAEAV?$allocator@UPixelFormat@pangolin@@@1@QEAUPixelFormat@pangolin@@$$QEAU34@@Z)
packet.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: class pangolin::PacketStream & __cdecl pangolin::Packet::Stream(void)" (__imp_?Stream@Packet@pangolin@@QEAAAEAVPacketStream@2@XZ) referenced in function "private: void __cdecl pangolin::Packet::ReadRemaining(void)" (?ReadRemaining@Packet@pangolin@@AEAAXXZ)
packetstream.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: int __cdecl std::basic_istream<char,struct std::char_traits<char> >::get(void)" (__imp_?get@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAHXZ) referenced in function "public: char __cdecl pangolin::PacketStream::get(void)" (?get@PacketStream@pangolin@@QEAADXZ)
packetstream.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: class std::basic_istream<char,struct std::char_traits<char> > & __cdecl std::basic_istream<char,struct std::char_traits<char> >::ignore(__int64,int)" (__imp_?ignore@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@_JH@Z) referenced in function "public: unsigned __int64 __cdecl pangolin::PacketStream::skip(unsigned __int64)" (?skip@PacketStream@pangolin@@QEAA_K_K@Z)
packetstream.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __int64 __cdecl std::basic_istream<char,struct std::char_traits<char> >::gcount(void)const " (__imp_?gcount@?$basic_istream@DU?$char_traits@D@std@@@std@@QEBA_JXZ) referenced in function "public: unsigned __int64 __cdecl pangolin::PacketStream::read(char *,unsigned __int64)" (?read@PacketStream@pangolin@@QEAA_KPEAD_K@Z)
packetstream.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: class std::basic_istream<char,struct std::char_traits<char> > & __cdecl std::basic_istream<char,struct std::char_traits<char> >::seekg(class std::fpos<struct _Mbstatet>)" (__imp_?seekg@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@V?$fpos@U_Mbstatet@@@2@@Z) referenced in function "public: void __cdecl pangolin::PacketStream::seekg(class std::fpos<struct _Mbstatet>)" (?seekg@PacketStream@pangolin@@QEAAXV?$fpos@U_Mbstatet@@@std@@@Z)
packetstream.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: bool __cdecl pangolin::PacketStream::seekable(void)const " (__imp_?seekable@PacketStream@pangolin@@QEBA_NXZ) referenced in function "public: void __cdecl pangolin::PacketStream::seekg(class std::fpos<struct _Mbstatet>)" (?seekg@PacketStream@pangolin@@QEAAXV?$fpos@U_Mbstatet@@@std@@@Z)
packetstream.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) private: void __cdecl pangolin::PacketStream::cclear(void)" (__imp_?cclear@PacketStream@pangolin@@AEAAXXZ) referenced in function "public: void __cdecl pangolin::PacketStream::seekg(class std::fpos<struct _Mbstatet>)" (?seekg@PacketStream@pangolin@@QEAAXV?$fpos@U_Mbstatet@@@std@@@Z)
packetstream_reader.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PacketStream::PacketStream(void)" (__imp_??0PacketStream@pangolin@@QEAA@XZ) referenced in function "public: __cdecl pangolin::PacketStreamReader::PacketStreamReader(void)" (??0PacketStreamReader@pangolin@@QEAA@XZ)
packetstream_reader.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: void __cdecl pangolin::PacketStream::open(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (__imp_?open@PacketStream@pangolin@@QEAAXAEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) referenced in function "public: void __cdecl pangolin::PacketStreamReader::Open(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?Open@PacketStreamReader@pangolin@@QEAAXAEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z)
packetstream_reader.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: void __cdecl pangolin::PacketStream::close(void)" (__imp_?close@PacketStream@pangolin@@QEAAXXZ) referenced in function "public: void __cdecl pangolin::PacketStreamReader::Close(void)" (?Close@PacketStreamReader@pangolin@@QEAAXXZ)
packetstream_reader.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: void __cdecl pangolin::PacketStream::`vbase destructor'(void)" (__imp_??_DPacketStream@pangolin@@QEAAXXZ) referenced in function "public: __cdecl pangolin::PacketStreamReader::~PacketStreamReader(void)" (??1PacketStreamReader@pangolin@@QEAA@XZ)
packetstream_reader.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PacketStreamSource::PacketStreamSource(void)" (__imp_??0PacketStreamSource@pangolin@@QEAA@XZ) referenced in function "public: static void __cdecl std::_Default_allocator_traits<class std::allocator<struct pangolin::PacketStreamSource> >::construct<struct pangolin::PacketStreamSource>(class std::allocator<struct pangolin::PacketStreamSource> &,struct pangolin::PacketStreamSource * const)" (??$construct@UPacketStreamSource@pangolin@@$$V@?$_Default_allocator_traits@V?$allocator@UPacketStreamSource@pangolin@@@std@@@std@@SAXAEAV?$allocator@UPacketStreamSource@pangolin@@@1@QEAUPacketStreamSource@pangolin@@@Z)
packetstream_reader.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PacketStreamSource::~PacketStreamSource(void)" (__imp_??1PacketStreamSource@pangolin@@QEAA@XZ) referenced in function "public: void * __cdecl pangolin::PacketStreamSource::`scalar deleting destructor'(unsigned int)" (??_GPacketStreamSource@pangolin@@QEAAPEAXI@Z)
packetstream_reader.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PacketStreamSource::PacketStreamSource(struct pangolin::PacketStreamSource const &)" (__imp_??0PacketStreamSource@pangolin@@QEAA@AEBU01@@Z) referenced in function "public: static void __cdecl std::_Default_allocator_traits<class std::allocator<struct pangolin::PacketStreamSource> >::construct<struct pangolin::PacketStreamSource,struct pangolin::PacketStreamSource &>(class std::allocator<struct pangolin::PacketStreamSource> &,struct pangolin::PacketStreamSource * const,struct pangolin::PacketStreamSource &)" (??$construct@UPacketStreamSource@pangolin@@AEAU12@@?$_Default_allocator_traits@V?$allocator@UPacketStreamSource@pangolin@@@std@@@std@@SAXAEAV?$allocator@UPacketStreamSource@pangolin@@@1@QEAUPacketStreamSource@pangolin@@AEAU34@@Z)
packetstream_reader.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) private: void __cdecl pangolin::PacketStreamReader::ReSync(void)" (__imp_?ReSync@PacketStreamReader@pangolin@@AEAAXXZ) referenced in function "public: struct pangolin::Packet __cdecl pangolin::PacketStreamReader::NextFrame(void)" (?NextFrame@PacketStreamReader@pangolin@@QEAA?AUPacket@2@XZ)
packetstream_writer.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PacketStreamSource::PacketStreamSource(struct pangolin::PacketStreamSource &&)" (__imp_??0PacketStreamSource@pangolin@@QEAA@$$QEAU01@@Z) referenced in function "public: static void __cdecl std::_Default_allocator_traits<class std::allocator<struct pangolin::PacketStreamSource> >::construct<struct pangolin::PacketStreamSource,struct pangolin::PacketStreamSource>(class std::allocator<struct pangolin::PacketStreamSource> &,struct pangolin::PacketStreamSource * const,struct pangolin::PacketStreamSource &&)" (??$construct@UPacketStreamSource@pangolin@@U12@@?$_Default_allocator_traits@V?$allocator@UPacketStreamSource@pangolin@@@std@@@std@@SAXAEAV?$allocator@UPacketStreamSource@pangolin@@@1@QEAUPacketStreamSource@pangolin@@$$QEAU34@@Z)
playback_session.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: class std::basic_istream<char,struct std::char_traits<char> > & __cdecl std::basic_istream<char,struct std::char_traits<char> >::operator>>(class std::ios_base & (__cdecl*)(class std::ios_base &))" (__imp_??5?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAVios_base@1@AEAV21@@Z@Z) referenced in function "public: static bool __cdecl pangolin::Convert<bool,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,void>::Do(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?Do@?$Convert@_NV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@X@pangolin@@SA_NAEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z)
playback_session.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: class std::basic_istream<char,struct std::char_traits<char> > & __cdecl std::basic_istream<char,struct std::char_traits<char> >::operator>>(bool &)" (__imp_??5?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@AEA_N@Z) referenced in function "public: static bool __cdecl pangolin::Convert<bool,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,void>::Do(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?Do@?$Convert@_NV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@X@pangolin@@SA_NAEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z)
playback_session.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::SyncTime::SyncTime(class std::chrono::duration<__int64,struct std::ratio<1,1000000000> >)" (__imp_??0SyncTime@pangolin@@QEAA@V?$duration@_JU?$ratio@$00$0DLJKMKAA@@std@@@chrono@std@@@Z) referenced in function "public: __cdecl pangolin::PlaybackSession::PlaybackSession(void)" (??0PlaybackSession@pangolin@@QEAA@XZ)
playback_session.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::SyncTime::~SyncTime(void)" (__imp_??1SyncTime@pangolin@@QEAA@XZ) referenced in function "public: __cdecl pangolin::PlaybackSession::~PlaybackSession(void)" (??1PlaybackSession@pangolin@@QEAA@XZ)
varstate.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: class std::shared_ptr<class pangolin::VarValueGeneric> __cdecl pangolin::VarState::GetByName(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (__imp_?GetByName@VarState@pangolin@@QEAA?AV?$shared_ptr@VVarValueGeneric@pangolin@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@4@@Z) referenced in function "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __cdecl <lambda_93281d1f9c0c6f9f4892ab4da5733e20>::operator()(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)const " (??R<lambda_93281d1f9c0c6f9f4892ab4da5733e20>@@QEBA?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@AEBV12@@Z)

LNK2001 errors:

image_io_bmp.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::~PixelFormat(void)" (__imp_??1PixelFormat@pangolin@@QEAA@XZ)
image_io_zstd.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::~PixelFormat(void)" (__imp_??1PixelFormat@pangolin@@QEAA@XZ)
image_io_tiff.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::~PixelFormat(void)" (__imp_??1PixelFormat@pangolin@@QEAA@XZ)
image_io_png.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::~PixelFormat(void)" (__imp_??1PixelFormat@pangolin@@QEAA@XZ)
image_io_ppm.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::~PixelFormat(void)" (__imp_??1PixelFormat@pangolin@@QEAA@XZ)
image_io_raw.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::~PixelFormat(void)" (__imp_??1PixelFormat@pangolin@@QEAA@XZ)
image_io_tga.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::~PixelFormat(void)" (__imp_??1PixelFormat@pangolin@@QEAA@XZ)
pixel_format.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::~PixelFormat(void)" (__imp_??1PixelFormat@pangolin@@QEAA@XZ)
image_io_jpg.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::~PixelFormat(void)" (__imp_??1PixelFormat@pangolin@@QEAA@XZ)
image_io_lz4.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::~PixelFormat(void)" (__imp_??1PixelFormat@pangolin@@QEAA@XZ)
image_io_packed12bit.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::~PixelFormat(void)" (__imp_??1PixelFormat@pangolin@@QEAA@XZ)
image_io_zstd.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(struct pangolin::PixelFormat const &)" (__imp_??0PixelFormat@pangolin@@QEAA@AEBU01@@Z)
image_io_tiff.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(struct pangolin::PixelFormat const &)" (__imp_??0PixelFormat@pangolin@@QEAA@AEBU01@@Z)
image_io_ppm.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(struct pangolin::PixelFormat const &)" (__imp_??0PixelFormat@pangolin@@QEAA@AEBU01@@Z)
image_io_raw.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(struct pangolin::PixelFormat const &)" (__imp_??0PixelFormat@pangolin@@QEAA@AEBU01@@Z)
image_io_tga.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(struct pangolin::PixelFormat const &)" (__imp_??0PixelFormat@pangolin@@QEAA@AEBU01@@Z)
image_io_bmp.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(struct pangolin::PixelFormat const &)" (__imp_??0PixelFormat@pangolin@@QEAA@AEBU01@@Z)
pixel_format.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(struct pangolin::PixelFormat const &)" (__imp_??0PixelFormat@pangolin@@QEAA@AEBU01@@Z)
image_io_lz4.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(struct pangolin::PixelFormat const &)" (__imp_??0PixelFormat@pangolin@@QEAA@AEBU01@@Z)
image_io_packed12bit.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(struct pangolin::PixelFormat const &)" (__imp_??0PixelFormat@pangolin@@QEAA@AEBU01@@Z)
image_io_png.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(struct pangolin::PixelFormat const &)" (__imp_??0PixelFormat@pangolin@@QEAA@AEBU01@@Z)
image_io_zstd.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(void)" (__imp_??0PixelFormat@pangolin@@QEAA@XZ)
image_io_tiff.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(void)" (__imp_??0PixelFormat@pangolin@@QEAA@XZ)
image_io_ppm.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(void)" (__imp_??0PixelFormat@pangolin@@QEAA@XZ)
image_io_raw.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(void)" (__imp_??0PixelFormat@pangolin@@QEAA@XZ)
image_io_tga.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(void)" (__imp_??0PixelFormat@pangolin@@QEAA@XZ)
image_io_bmp.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(void)" (__imp_??0PixelFormat@pangolin@@QEAA@XZ)
image_io_jpg.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(void)" (__imp_??0PixelFormat@pangolin@@QEAA@XZ)
image_io_lz4.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(void)" (__imp_??0PixelFormat@pangolin@@QEAA@XZ)
image_io_packed12bit.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(void)" (__imp_??0PixelFormat@pangolin@@QEAA@XZ)
image_io_png.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PixelFormat::PixelFormat(void)" (__imp_??0PixelFormat@pangolin@@QEAA@XZ)
image_io_zstd.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: struct pangolin::PixelFormat & __cdecl pangolin::PixelFormat::operator=(struct pangolin::PixelFormat const &)" (__imp_??4PixelFormat@pangolin@@QEAAAEAU01@AEBU01@@Z)
image_io_tiff.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: struct pangolin::PixelFormat & __cdecl pangolin::PixelFormat::operator=(struct pangolin::PixelFormat const &)" (__imp_??4PixelFormat@pangolin@@QEAAAEAU01@AEBU01@@Z)
image_io_ppm.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: struct pangolin::PixelFormat & __cdecl pangolin::PixelFormat::operator=(struct pangolin::PixelFormat const &)" (__imp_??4PixelFormat@pangolin@@QEAAAEAU01@AEBU01@@Z)
image_io_raw.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: struct pangolin::PixelFormat & __cdecl pangolin::PixelFormat::operator=(struct pangolin::PixelFormat const &)" (__imp_??4PixelFormat@pangolin@@QEAAAEAU01@AEBU01@@Z)
image_io_tga.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: struct pangolin::PixelFormat & __cdecl pangolin::PixelFormat::operator=(struct pangolin::PixelFormat const &)" (__imp_??4PixelFormat@pangolin@@QEAAAEAU01@AEBU01@@Z)
image_io_bmp.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: struct pangolin::PixelFormat & __cdecl pangolin::PixelFormat::operator=(struct pangolin::PixelFormat const &)" (__imp_??4PixelFormat@pangolin@@QEAAAEAU01@AEBU01@@Z)
image_io_jpg.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: struct pangolin::PixelFormat & __cdecl pangolin::PixelFormat::operator=(struct pangolin::PixelFormat const &)" (__imp_??4PixelFormat@pangolin@@QEAAAEAU01@AEBU01@@Z)
image_io_lz4.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: struct pangolin::PixelFormat & __cdecl pangolin::PixelFormat::operator=(struct pangolin::PixelFormat const &)" (__imp_??4PixelFormat@pangolin@@QEAAAEAU01@AEBU01@@Z)
image_io_packed12bit.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: struct pangolin::PixelFormat & __cdecl pangolin::PixelFormat::operator=(struct pangolin::PixelFormat const &)" (__imp_??4PixelFormat@pangolin@@QEAAAEAU01@AEBU01@@Z)
image_io_png.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: struct pangolin::PixelFormat & __cdecl pangolin::PixelFormat::operator=(struct pangolin::PixelFormat const &)" (__imp_??4PixelFormat@pangolin@@QEAAAEAU01@AEBU01@@Z)
packetstream_reader.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: bool __cdecl pangolin::PacketStream::seekable(void)const " (__imp_?seekable@PacketStream@pangolin@@QEBA_NXZ)
packetstream_writer.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PacketStreamSource::~PacketStreamSource(void)" (__imp_??1PacketStreamSource@pangolin@@QEAA@XZ)
packetstream_writer.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl pangolin::PacketStreamSource::PacketStreamSource(struct pangolin::PacketStreamSource const &)" (__imp_??0PacketStreamSource@pangolin@@QEAA@AEBU01@@Z)

Also Fixes #760.

[stevenlovegrove]

Looks good! I don't think I have a problem with exporting all symbols on Windows if that simplifies things and doesn't introduce any issues.

The two funny things I'm doing which might get effected with static / shared builds is the font stuff which it looks like you've tested, and also registering video drivers (eg. https://github.com/stevenlovegrove/Pangolin/blob/master/components/pango_video/CMakeLists.txt#L31) so you could perhaps do a quick check by running VideoViewer test://

thanks!

[christian-rauch]

Alright. VideoViewer test:// works as before. So I am going ahead and will merge this.