undefined reference errors

[Seongjoon Kang]

Hi

I tried to compile a simple code as example of protobuf.

But I used to have the following error messages.

Codes are attached. Could you help me correct these bugs ?

Thanks

/usr/bin/ld: /tmp/ccdiZiDW.o: in function `main':
ex1.cc:(.text+0x142): undefined reference to `tutorial::SearchRequest::~SearchRequest()'
/usr/bin/ld: ex1.cc:(.text+0x16b): undefined reference to `tutorial::SearchRequest::~SearchRequest()'
/usr/bin/ld: /tmp/ccdiZiDW.o: in function `google::protobuf::internal::ArenaStringPtr::Set(char const*, google::protobuf::Arena*)':
ex1.cc:(.text._ZN6google8protobuf8internal14ArenaStringPtr3SetEPKcPNS0_5ArenaE[_ZN6google8protobuf8internal14ArenaStringPtr3SetEPKcPNS0_5ArenaE]+0x4e): undefined reference to `google::protobuf::internal::ArenaStringPtr::Set(absl::lts_20230125::string_view, google::protobuf::Arena*)'
/usr/bin/ld: /tmp/ccdiZiDW.o: in function `tutorial::SearchRequest::SearchRequest()':
ex1.cc:(.text._ZN8tutorial13SearchRequestC2Ev[_ZN8tutorial13SearchRequestC5Ev]+0x1d): undefined reference to `tutorial::SearchRequest::SearchRequest(google::protobuf::Arena*)'
collect2: error: ld returned 1 exit status
 

[Dirk Jagdmann]

you should show us your linker command line.

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