Hi, I'm trying to compile gst-python on OS X 10.4.8 and run in a number of problems. First of all, I have a running gstreamer environment compiled from the CVS repository. All the unit tests complete successfully including all the 30+ libraries on which gstreamer depends. When I compile gst-python, make bails out with the following errors: ================================================== generating symbol list for `_gst.la' /usr/bin/nm -p  .libs/_gst_la- gst-argtypes.o .libs/_gst_la-gstmodule.o .libs/_gst_la-pygstiterator.o .libs/_gst_la-pygstminiobject.o .libs/_gst_la-pygstvalue.o .libs/_gst_la-pygstexception.o .libs/_gst_la-gst.o  | sed -n -e 's/^.*[       ]$[BCDEGRST][BCDEGRST]*$[     ][      ]*_$[_A-Za-z][_A-Za-z0-9]*$$/\1 _\2 \2/p' | /usr/bin/sed 's/.* //' | sort | uniq > .libs/_gst.exp /usr/bin/grep -E -e "^(init_gst|_PyGObject_API).*" ".libs/_gst.exp" > ".libs/_gst.expT" mv -f ".libs/_gst.expT" ".libs/_gst.exp" sed -e "s,#.*,," -e "s,^[ ]*,," -e "s,^$..*$,_&," < .libs/_gst.exp > .libs/_gst- symbols.expsym gcc ${wl}-flat_namespace ${wl}-undefined ${wl}suppress -o .libs/_gst.so -bundle  .libs/_gst_la-gst-argtypes.o .libs/_gst_la-gstmodule.o .libs/_gst_la-pygstiterator.o .libs/_gst_la-pygstminiobject.o .libs/_gst_la- pygstvalue.o .libs/_gst_la-pygstexception.o .libs/_gst_la-gst.o  -L/Users/gideon/build_darwin/lib -L/Users/gideon/build_darwin//lib /Users/gideon/build_darwin/lib/libgstcontroller-0.10.dylib /Users/gideon/build_darwin/lib/libgstnet- 0.10.dylib /Users/gideon/build_darwin/lib/libgstdataprotocol-0.10.dylib /Users/gideon/build_darwin/lib/libgstbase-0.10.dylib /Users/gideon/build_darwin/lib/libgstreamer-0.10.dylib /Users/gideon/build_darwin//lib/libgobject- 2.0.dylib /Users/gideon/build_darwin//lib/libgmodule-2.0.dylib /Users/gideon/build_darwin//lib/libgthread-2.0.dylib /Users/gideon/build_darwin//lib/libxml2.dylib -lpthread -lz -lm /Users/gideon/build_darwin//lib/libglib- 2.0.dylib /Users/gideon/build_darwin//lib/libintl.dylib /Users/gideon/build_darwin//lib/libiconv.dylib /usr/bin/ld: multiple definitions of symbol _PyGstIterator_Type .libs/_gst_la-gst-argtypes.o definition of _PyGstIterator_Type in section (__DATA,__common) .libs/_gst_la-gstmodule.o definition of _PyGstIterator_Type in section (__DATA,__common) /usr/bin/ld: multiple definitions of symbol __PyGObject_API .libs/_gst_la-gst-argtypes.o definition of __PyGObject_API in section (__DATA,__common) .libs/_gst_la-gstmodule.o definition of __PyGObject_API in section (__DATA,__common) .libs/_gst_la-pygstiterator.o definition of _PyGstIterator_Type in section (__DATA,__data) .libs/_gst_la-pygstiterator.o definition of __PyGObject_API in section (__DATA,__common) .libs/_gst_la-pygstminiobject.o definition of _PyGstIterator_Type in section (__DATA,__common) .libs/_gst_la-pygstminiobject.o definition of __PyGObject_API in section (__DATA,__common) .libs/_gst_la-pygstvalue.o definition of _PyGstIterator_Type in section (__DATA,__common) .libs/_gst_la-pygstvalue.o definition of __PyGObject_API in section (__DATA,__common) .libs/_gst_la-gst.o definition of _PyGstIterator_Type in section (__DATA,__common) .libs/_gst_la-gst.o definition of __PyGObject_API in section (__DATA,__common) collect2: ld returned 1 exit status make[3]: *** [_gst.la] Error 1 make[2]: *** [all-recursive] Error 1 make[1]: *** [all-recursive] Error 1 make: *** [all] Error 2 ================================================== It seems that the objects PyGstIterator_Type and _PyGObject_API have multiple definitions, which is in violation of the 'One Definition Rule'. I've been able to compile and run the tests successfully after applying the following patches: Index: gst/common.h =================================================================== RCS file: /cvs/gstreamer/gst-python/gst/common.h,v retrieving revision 1.14 diff -r1.14 common.h 56c56 < PyTypeObject PyGstIterator_Type; --- > extern PyTypeObject PyGstIterator_Type; Index: gst/pygstiterator.c =================================================================== RCS file: /cvs/gstreamer/gst-python/gst/pygstiterator.c,v retrieving revision 1.5 diff -r1.5 pygstiterator.c 22a23,24 > #define NO_IMPORT_PYGOBJECT > 24a27,28 > PyTypeObject PyGstIterator_Type; > Index: gst/pygstminiobject.c =================================================================== RCS file: /cvs/gstreamer/gst-python/gst/pygstminiobject.c,v retrieving revision 1.16 diff -r1.16 pygstminiobject.c 22a23,24 > #define NO_IMPORT_PYGOBJECT > Index: gst/pygstminiobject.h =================================================================== RCS file: /cvs/gstreamer/gst-python/gst/pygstminiobject.h,v retrieving revision 1.5 diff -r1.5 pygstminiobject.h 48c48 < struct _PyGObject_Functions *_PyGObject_API; --- > extern struct _PyGObject_Functions *_PyGObject_API; It might be that this fixes bug 343980, since I had a the same crash at pyg_register_interface before having had a complete fix. Ciao, Gideon