[Pidgin] #7872: Libpurple plugins can't find purple_* symbols

[Pidgin]

#7872: Libpurple plugins can't find purple_* symbols
--------------------------+-------------------------------------------------
Reporter:  brunoabinader  |        Type:  defect                                 
  Status:  new            |   Component:  libpurple                              
 Version:  2.5.3          |    Keywords:  libpurple, LD_PRELOAD, undefined symbol
--------------------------+-------------------------------------------------
 Using python-purple python bindings for libpurple, when executing an
 example client ''nullclient.py'', the output below is generated:

 {{{
 $ python2.5 nullclient.py
 (16:21:26) prefs: Reading /tmp/prefs.xml
 (16:21:26) prefs: Reading /etc/purple/prefs.xml
 (16:21:26) core_ui_ops: ui_prefs_init
 (16:21:26) prefs: Reading /tmp/prefs.xml
 (16:21:26) prefs: Reading /etc/purple/prefs.xml
 (16:21:26) core_ui_ops: debug_ui_init
 (16:21:26) dbus: okkk
 (16:21:26) plugins: probing /usr/lib/purple-2/ssl-nss.so
 (16:21:26) plugins: /usr/lib/purple-2/ssl-nss.so is not loadable:
 undefined symbol: purple_certificate_unregister_scheme
 python2.5: symbol lookup error: /usr/lib/purple-2/ssl-nss.so: undefined
 symbol: purple_plugin_register
 }}}

 This problem disappears when the same command is executed using LD_PRELOAD
 environment variable to preload libpurple.so:

 {{{
 $ LD_PRELOAD=/usr/lib/libpurple.so python2.5 nullclient.py
 }}}

 This is strange since purple.so python module is compiled with dynamic
 links for glib and libpurple:

 {{{
 gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions build/c_purple.o
 build/purple.o -o build/purple.so -lpurple -lglib-2.0
 }}}

 This problem also appears to exist when trying to embed libpurple in other
 applications:

 [1] [OpenSER-Devel] libpurple integration problem
 http://www.mail-archive.com/devel@lists.openser.org/msg01350.html

 [2] Java Native Interface (JNI) - Loading a native library that loads the
 libraries itself
 http://forums.sun.com/thread.jspa?threadID=5196194&tstart=868

-- 
Ticket URL: <http://developer.pidgin.im/ticket/7872>
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