That's how the (gcc) linker works. It needs to know what are the objects required before looking for them, therefore order is important. See also http://www.network-theory.co.uk/docs/gccintro/gccintro_18.html
-- Norman Casagrande Head of Music Research last.fm > -----Original Message----- > From: zd.wbh [mailto:[email protected]] > Sent: 07 May 2010 07:51 > To: thrift-user > Subject: Does the link sequence of libthrift.a and libthriftnb.a > matters? > > hi, all > > We encounter an odd link error today: > > ./src/transport/TBufferTransports.h:452: undefined reference to `vtable > for apache::thrift::transport::TMemoryBuffer' > /usr/local/thrift/lib/libthriftnb.a(libthriftnb_la- > TNonblockingServer.o)(.text+0x253e): In function > `apache::thrift::server::TConnection::transition()': > > Normally, the "undefined reference of vtable" error arise from not > implementing pure virtual functions, but not in our case. Finally we > tried to exchange the link order of the two lib and get resolved. > libthriftnb.a must be ahead of libthrift.a? Can somebody explains this > to me? Thanks a lot.
