[FreeBSD 10-3] undefined reference to getsourcefilter /setsourcefilter

[Victor Toni]

Thank you.for the hint. Exactly what I needed to get it working and polish
my rusty C skills up.

2016-05-08 23:50 GMT+02:00 Adrian Chadd <adrian.chadd at gmail.com>:

> Some extern "C" { } around some includes? :)
>
>
> -a
>
>
> On 8 May 2016 at 14:46, Victor Toni <victor.toni at gmail.com> wrote:
> > Trying to port mcproxy to FreeBSD I encountered a quite strange problem.
> > Compiling everything works but linking fails with the following error:
> >
> > $ c++ -v -Wl,-rpath,/usr/local/lib -pthread -o mcproxy main.o
> >  hamcast_logging.o  mc_socket.o  addr_storage.o  mroute_socket.o
> if_prop.o
> >  reverse_path_filter.o  proxy.o  sender.o  receiver.o  mld_receiver.o
> >  igmp_receiver.o  mld_sender.o  igmp_sender.o  proxy_instance.o
> routing.o
> >  worker.o  timing.o  check_if.o  check_kernel.o  membership_db.o
> querier.o
> >  timers_values.o  interfaces.o  def.o  simple_mc_proxy_routing.o
> >  simple_routing_data.o  scanner.o  token.o  configuration.o  parser.o
> >  interface.o    -L/usr/local/lib -L/usr/lib -lpthread
> > FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512
> > Target: i386-unknown-freebsd10.3
> > Thread model: posix
> > Selected GCC installation:
> >  "/usr/bin/ld" --eh-frame-hdr -dynamic-linker /libexec/ld-elf.so.1
> > --hash-style=both --enable-new-dtags -m elf_i386_fbsd -o mcproxy
> > /usr/lib/crt1.o /usr/lib/crti.o /usr/lib/crtbegin.o -L/usr/local/lib
> > -L/usr/lib -L/usr/lib -rpath /usr/local/lib main.o hamcast_logging.o
> > mc_socket.o addr_storage.o mroute_socket.o if_prop.o
> reverse_path_filter.o
> > proxy.o sender.o receiver.o mld_receiver.o igmp_receiver.o mld_sender.o
> > igmp_sender.o proxy_instance.o routing.o worker.o timing.o check_if.o
> > check_kernel.o membership_db.o querier.o timers_values.o interfaces.o
> def.o
> > simple_mc_proxy_routing.o simple_routing_data.o scanner.o token.o
> > configuration.o parser.o interface.o -lpthread -lc++ -lm -lgcc
> --as-needed
> > -lgcc_s --no-as-needed -lpthread -lc -lgcc --as-needed -lgcc_s
> > --no-as-needed /usr/lib/crtend.o /usr/lib/crtn.o
> > mc_socket.o: In function `mc_socket::set_source_filter(unsigned int,
> > addr_storage const&, unsigned int, std::__1::list<addr_storage,
> > std::__1::allocator<addr_storage> > const&) const':
> > src/utils/mc_socket.cpp:(.text+0x29cc): undefined reference to
> > `setsourcefilter(int, unsigned int, sockaddr*, unsigned int, unsigned
> int,
> > unsigned int, sockaddr_storage*)'
> > mc_socket.o: In function `mc_socket::get_source_filter(unsigned int,
> > addr_storage const&, unsigned int&, std::__1::list<addr_storage,
> > std::__1::allocator<addr_storage> >&) const':
> > src/utils/mc_socket.cpp:(.text+0x2c29): undefined reference to
> > `getsourcefilter(int, unsigned int, sockaddr*, unsigned int, unsigned
> int*,
> > unsigned int*, sockaddr_storage*)'
> > src/utils/mc_socket.cpp:(.text+0x2cae): undefined reference to
> > `getsourcefilter(int, unsigned int, sockaddr*, unsigned int, unsigned
> int*,
> > unsigned int*, sockaddr_storage*)'
> > c++: error: linker command failed with exit code 1 (use -v to see
> > invocation)
> >
> > The methods should be found:
> >
> > $ readelf -s /usr/lib/libc.a | grep etsourcefilter
> >     10: 00000600   392 FUNC    GLOBAL DEFAULT    1 getsourcefilter
> >     12: 00000290   305 FUNC    GLOBAL DEFAULT    1 setsourcefilter
> >
> >
> > What am I missing?
> > _______________________________________________
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