Can't compile example from google protocol buffers
Put the library at the end:
g++ -I /home/username/local/include -L /home/username/local/lib main.cpp person.pb.cc -lprotobuf -pthread
From GCC Link Options:
-llibrary -l library Search the library named library when linking. (The second alternative with the library as a separate argument is only for POSIX compliance and is not recommended.) It makes a difference where in the command you write this option; the linker searches and processes libraries and object files in the order they are specified. Thus, `foo.o -lz bar.o' searches library `z' after file foo.o but before bar.o. If bar.o refers to functions in `z', those functions may not be loaded.
Also, use -pthread
instead of -lpthread
as -pthread
may set flags for preprocessor and linker.
Library linking flags go at the end of the compiler's arguments:
g++ -I /home/username/local/include -L /home/username/local/lib main.cpp person.pb.cc -lprotobuf -lpthread