Re: [openvrml-develop] Link failure in building OpenVRML-0.16.1 on Mac OS X ppc

[Braden M. <br...@en...>]

Quoting Philip Lamb <ph...@ed...>:

> I finally got around to building OpenVRML on Mac OS X on a PowerPC
> machine, and have encountered a build failure during linking. This
> doesn't appear on Mac OS X x86 and I'm at a bit of a loss to diagnose
> the cause:

[snip]

> g++ -DHAVE_CONFIG_H -I. -I. -I../.. -I../../lib/antlr -I../../java -
> I../../src/libopenvrml -DOPENVRML_LIBDIR_=\"/sw/lib\" -
> DOPENVRML_PKGDATADIR_=\"/sw/share/openvrml\" -
> DBOOST_SPIRIT_THREADSAFE -DBOOST_MPL_CFG_NO_PREPROCESSED_HEADERS -
> DBOOST_MPL_LIMIT_VECTOR_SIZE=30 -I/sw/include -D_THREAD_SAFE -I/usr/
> X11R6/include -I/usr/X11R6/include -I/usr/X11R6/include/freetype2 -
> DXP_UNIX -I/sw/include/mozilla/nspr -I/sw/include/mozilla/js -g -O2 -
> MT openvrml/node.lo -MD -MP -MF openvrml/.deps/node.Tpo -c openvrml/
> node.cpp  -fno-common -DPIC -o openvrml/.libs/node.o
> /var/tmp//cc7pQI6V.s:unknown:Non-global symbol:
> __ZTv0_n12_ZN46_GLOBAL__N_openvrml_node.cpp_00000000_0CF9259613self_ref_
> node17do_event_listenerERKSsEN14dummy_listenerD1Ev.eh can't be a
> weak_definition
> /var/tmp//cc7pQI6V.s:unknown:Non-global symbol:
> __ZTv0_n12_ZN46_GLOBAL__N_openvrml_node.cpp_00000000_0CF9259613self_ref_
> node17do_event_listenerERKSsEN14dummy_listenerD0Ev.eh can't be a
> weak_definition
> /var/tmp//cc7pQI6V.s:unknown:Non-global symbol:
> __ZTv0_n16_ZN46_GLOBAL__N_openvrml_node.cpp_00000000_0CF9259613self_ref_
> node16do_event_emitterERKSsENK13dummy_emitter14do_eventout_idEv.eh
> can't be a weak_definition

Looks related to symbol visibility. Hard to say exactly what might fix it, but
here are a few things you can try:

  * Remove OPENVRML_LOCAL from the definition of self_ref_node.
  * Move self_ref_node out of the unnamed namespace.
  * Move the definitions of dummy_listener and dummy_emitter out of the
    function definitions.

--
Braden McDaniel                           e-mail: <br...@en...>
<http://endoframe.com>                    Jabber: <br...@ja...>