$ gdb --args pidgin
GNU gdb 6.8-debian
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu"...
(gdb) handle SIGPIPE nostop
Signal        Stop	Print	Pass to program	Description
SIGPIPE       No	Yes	Yes		Broken pipe
(gdb) r
Starting program: /usr/bin/pidgin 
[Thread debugging using libthread_db enabled]
[New Thread 0x7fcc2b2e57d0 (LWP 21383)]
[New Thread 0x7fcc148aa950 (LWP 21414)]
[New Thread 0x7fcc0a5de950 (LWP 21443)]
[New Thread 0x7fcc09ddd950 (LWP 21444)]
[Thread 0x7fcc09ddd950 (LWP 21444) exited]
[Thread 0x7fcc0a5de950 (LWP 21443) exited]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fcc2b2e57d0 (LWP 21383)]
0x00007fcc0e724fcb in jabber_parser_process (js=0x7fd5030, 
    buf=0x7fcc0e93e260 "<proceed xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>", len=50)
    at ../../../../libpurple/protocols/jabber/parser.c:223
223	../../../../libpurple/protocols/jabber/parser.c: No such file or directory.
	in ../../../../libpurple/protocols/jabber/parser.c
(gdb) bt full
#0  0x00007fcc0e724fcb in jabber_parser_process (js=0x7fd5030, 
    buf=0x7fcc0e93e260 "<proceed xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>", len=50)
    at ../../../../libpurple/protocols/jabber/parser.c:223
	err = (xmlError *) 0x0
	ret = 5
#1  0x00007fcc0e7194f2 in jabber_recv_cb (data=0x7fd4de0, source=37, condition=PURPLE_INPUT_READ)
    at ../../../../libpurple/protocols/jabber/jabber.c:514
	gc = (PurpleConnection *) 0x7fd4de0
	js = (JabberStream *) 0x7fd5030
	len = 50
	buf = "<proceed xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>\000lient' xmlns:stream='http://etherx.jabber.org/streams' id='1666861709' from='blubug.bugabundo.net' version='1.0' xml:lang='en'><stream:features><star"...
#2  0x000000000046dfc5 in pidgin_io_invoke (source=0x1fc4310, condition=G_IO_IN, data=0x7fecaf0)
    at ../../pidgin/gtkeventloop.c:78
	closure = (PidginIOClosure *) 0x7fecaf0
	purple_cond = PURPLE_INPUT_READ
#3  0x00007fcc2835d30b in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#4  0x00007fcc28360acd in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fcc28360ffd in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#6  0x00007fcc29a09f27 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#7  0x000000000048aed3 in main (argc=1, argv=0x7fff33325788) at ../../pidgin/gtkmain.c:883
	opt_help = 0
	opt_login = 0
	opt_nologin = 0
	opt_nocrash = 0
---Type <return> to continue, or q <return> to quit---
	opt_version = 0
	opt_si = 1
	opt_config_dir_arg = 0x0
	opt_login_arg = 0x0
	opt_session_arg = 0x0
	search_path = 0x1b3ab30 "0Գ\001"
	accounts = (GList *) 0x0
	sig_indx = 1
	sigset = {__val = {81927, 0 <repeats 15 times>}}
	prev_sig_disp = (void (*)(int)) 0
	errmsg = "\030�~(�\177\000\000\004\000\000\000\000\000\000\000�\231/+�\177\000\000M'\021+�\177\000\000\000\000\000\000\000\000\000\0009", '\0' <repeats 15 times>, "&H\021+�\177\000\000�T23�\177\000\000\020'\021+�\177\000\000\017U23�\177\000\000\000U23�\177\000\000�T23�\177\000\000\000\000\000\000\000\000\000\000@U23�\177\000\000�/\021+�\177\000\000��.+�\177\000\000\000p/+�\177", '\0' <repeats 18 times>, "\030�~(�\177\000\000\004\000\000\000\000\000\000\000�\231/+�\177\000\000\000\000�mdf��\000\000\026\220\"V\230�)\000\000\000\000\000\000\000\030", '\0' <repeats 11 times>...
	segfault_message_tmp = 0x1acf190 "/home/bugabundo/.purple"
	error = (GError *) 0x0
	opt = -1
	gui_check = 1
	debug_enabled = 0
	migration_failed = 0
	active_accounts = (GList *) 0x495a920
	long_options = {{name = 0x4d40eb "config", has_arg = 1, flag = 0x0, val = 99}, {name = 0x4d40f2 "debug", 
    has_arg = 0, flag = 0x0, val = 100}, {name = 0x4d40f8 "help", has_arg = 0, flag = 0x0, val = 104}, {
    name = 0x4d40fd "login", has_arg = 2, flag = 0x0, val = 108}, {name = 0x4d4103 "multiple", has_arg = 0, flag = 0x0, 
    val = 109}, {name = 0x4d410c "nologin", has_arg = 0, flag = 0x0, val = 110}, {name = 0x4d4114 "nocrash", has_arg = 0, 
    flag = 0x0, val = 120}, {name = 0x4d411c "session", has_arg = 1, flag = 0x0, val = 115}, {name = 0x4d3e12 "version", 
    has_arg = 0, flag = 0x0, val = 118}, {name = 0x4d4124 "display", has_arg = 1, flag = 0x0, val = 68}, {
    name = 0x4d412c "sync", has_arg = 0, flag = 0x0, val = 83}, {name = 0x0, has_arg = 0, flag = 0x0, val = 0}}