What in the manual did you read. Searching for the same issue. On Monday, July 2, 2018 at 9:19:38 AM UTC-4, John Lilley wrote: > > Never mind, I RT'd the FM :-) > john > > > On Sun, Jul 1, 2018 at 2:37 PM John Lilley <[email protected] <javascript:>> > wrote: > >> I have installed protobuf 3.5.1 using the "vcpkg" method on Windows. I >> can generate code, but when I try to compile I get many errors like: >> >> 1>f:\vcpkg\installed\x64-windows\include\google\protobuf\stubs\logging.h(100): >> >> warning C4251: 'google::protobuf::internal::LogMessage::message_': class >> 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs >> to have dll-interface to be used by clients of class >> 'google::protobuf::internal::LogMessage' >> 1>c:\program files (x86)\microsoft visual >> studio\2017\professional\vc\tools\msvc\14.14.26428\include\xstring(4347): >> note: see declaration of >> 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' >> >> I can use std::string elsewhere in my code without this issue, so I >> suspect that I need to set some preprocessor flag(s) in my project? >> >> The Readme says "When compiling your project, make sure to #define >> PROTOBUF_USE_DLLS". However, doing so has no effect other than to report a >> duplicate macro definition warning. >> Thanks >> john >> >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Protocol Buffers" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To post to this group, send email to [email protected] >> <javascript:>. >> Visit this group at https://groups.google.com/group/protobuf. >> For more options, visit https://groups.google.com/d/optout. >> >
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