Re: no-undefined, solaris sun studio and pain

[Monty Taylor]

I should add - also removing -zdefs works, as -zdefs causes the Sun
Studio compiler to throw the undefined symbols warnings.

Monty Taylor wrote:
> Hi!
> 
> I'm working on a build issue on Solaris with Sun Studio. In short, I've
> baked it down to this:
> 
> lib_LTLIBRARIES = libprotobuf.la libprotoc.la
> 
> libprotobuf_la_LIBADD = $(PTHREAD_LIBS)
> libprotobuf_la_LDFLAGS = -version-info 6:0:0 -export-dynamic -no-undefined
> 
> libprotoc_la_LIBADD = $(PTHREAD_LIBS) libprotobuf.la
> libprotoc_la_LDFLAGS = -version-info 6:0:0 -export-dynamic -no-undefined
> 
> make works correctly.
> 
> make install produces this during the relink:
> 
> CC -G -zdefs -hlibprotoc.so.6 -o .libs/libprotoc.so.6.0.0   <various .o
> files snipped>  -R/usr/local/lib/amd64 -L/usr/local/lib/amd64 -lprotobuf
> -library=stlport4 -library=Crun -lpthread -lz -lc  -template=no%extdef
> -mt -m64   -mt
> Undefined                       first referenced
>  symbol                             in file
> void google::protobuf::internal::RepeatedPtrFieldBase::Reserve(int)
> .libs/command_line_interface.o
> void
> google::protobuf::internal::WireFormatLite::WriteMessageMaybeToArray(int,const
> google::protobuf::MessageLite&,google::protobuf::io::CodedOutputStream*)
> .libs/plugin.pb.o
> void google::protobuf::UnknownFieldSet::ClearFallback() .libs/plugin.pb.o
> unsigned google::protobuf::io::CodedInputStream::ReadTagFallback()
> .libs/plugin.pb.o
> void google::protobuf::internal::WireFormatLite::WriteString(int,const
> std::string &,google::protobuf::io::CodedOutputStream*) .libs/plugin.pb.o
> std::string google::protobuf::strings::CHexEscape(const std::string &)
> .libs/python_generator.o
> bool
> google::protobuf::internal::WireFormatLite::ReadString(google::protobuf::io::CodedInputStream*,std::string
> *) .libs/plugin.pb.o
> ld: fatal: symbol referencing errors. No output written to
> .libs/libprotoc.so.6.0.0
> 
> Thing is - libprotobuf.so hasn't been installed in /usr/local/lib/amd64
> yet, so the -lprotobuf seems to trigger the unknown symbols above.
> 
> If I remove -no-undefined from the LDFLAGS or I manually edit the above
> line to do:
> 
> CC -G -zdefs -hlibprotoc.so.6 -o .libs/libprotoc.so.6.0.0   <various .o
> files snipped>  -R/usr/local/lib/amd64 -L/usr/local/lib/amd64
> .libs/libprotobuf.so -library=stlport4 -library=Crun -lpthread -lz -lc
> -template=no%extdef -mt -m64   -mt
> 
> It works. Of course, I know the above editing is wrong, because it
> really wants to be linked with -lprotobuf. Am I just SOL in terms of
> being able to use -no-undefined in this case? It would be nice to get
> that error on the compile-for-tree stage but not have it apply to the
> relink for install phase.
> 
> Thanks!
> Monty
> 
> 
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