gaim-1.5.0-13.fc5.x86_64 segfaults on startup.  This is with up-to-date rawhide.
 gaim-1.5.0-9.fc5.3.x86_64 worked fine.

Stack trace:

(gdb) thread apply all bt

Thread 1 (process 4594):
#0  0x00002aaaacafa215 in *__GI_raise (sig=Variable "sig" is not available.
) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1  0x00002aaaacafb93e in *__GI_abort () at abort.c:88
#2  0x00005555556143d2 in sighandler (sig=4594) at main.c:368
#3  <signal handler called>
#4  check_derivation_I (parent_type=1433919184, type_name=0x2aaaab9793e5
"GtkObject")
    at gtype.c:423
#5  0x00002aaaac3fe509 in IA__g_type_register_static (parent_type=1433919184,
    type_name=0x2aaaab9793e5 "GtkObject", info=0x2aaaabaf3ec0,
flags=G_TYPE_FLAG_ABSTRACT)
    at gtype.c:2220
#6  0x00002aaaab83197b in IA__gtk_object_get_type () at gtkobject.c:98
#7  0x00002aaaab8e25c8 in IA__gtk_widget_get_type () at gtkwidget.c:291
#8  0x00002aaaab7a129a in IA__gtk_container_get_type () at gtkcontainer.c:137
#9  0x00002aaaab76e462 in IA__gtk_bin_get_type () at gtkbin.c:69
#10 0x00002aaaab8ed4e6 in IA__gtk_window_get_type () at gtkwindow.c:320
#11 0x00002aaaab8f14d6 in IA__gtk_window_new (type=GTK_WINDOW_TOPLEVEL) at
gtkwindow.c:1037
#12 0x00005555556166b4 in gaim_gtk_stock_init () at stock.c:143
#13 0x000055555561425f in gaim_gtk_ui_init () at main.c:460
#14 0x0000555555595daa in gaim_core_init (ui=Variable "ui" is not available.
) at core.c:99
#15 0x00005555556154df in main (argc=1, argv=0x7fffffbf67a8) at main.c:870

bt full did not return the full stack trace.

#4  check_derivation_I (parent_type=1433919184, type_name=0x2aaaab9793e5
"GtkObject")
    at gtype.c:423
        pnode = (TypeNode *) 0x5577ded0
        finfo = Variable "finfo" is not available.
#5  0x00002aaaac3fe509 in IA__g_type_register_static (parent_type=1433919184,
    type_name=0x2aaaab9793e5 "GtkObject", info=0x2aaaabaf3ec0,
flags=G_TYPE_FLAG_ABSTRACT)
    at gtype.c:2220
        pnode = Variable "pnode" is not available.
#6  0x00002aaaab83197b in IA__gtk_object_get_type () at gtkobject.c:98
        object_info = {class_size = 160,
  base_init = 0x2aaaab830f90 <gtk_object_base_class_init>,
  base_finalize = 0x2aaaab830fa7 <gtk_object_base_class_finalize>,
  class_init = 0x2aaaab8323c5 <gtk_object_class_init>, class_finalize = 0,
class_data = 0x0,
  instance_size = 32, n_preallocs = 16, instance_init = 0x2aaaab830fa8
<gtk_object_init>,
  value_table = 0x0}
        object_type = 0
#7  0x00002aaaab8e25c8 in IA__gtk_widget_get_type () at gtkwidget.c:291
        accessibility_info = {
  interface_init = 0x2aaaab8e1929 <gtk_widget_accessible_interface_init>,
  interface_finalize = 0, interface_data = 0x0}
        widget_info = {class_size = 720, base_init = 0, base_finalize = 0,
  class_init = 0x2aaaab8e855a <gtk_widget_class_init>, class_finalize = 0,
class_data = 0x0,
  instance_size = 96, n_preallocs = 0, instance_init = 0x2aaaab8e1f41
<gtk_widget_init>,
  value_table = 0x0}
        widget_type = 0
#8  0x00002aaaab7a129a in IA__gtk_container_get_type () at gtkcontainer.c:137
        container_info = {class_size = 824,
  base_init = 0x2aaaab7a0940 <gtk_container_base_class_init>,
  base_finalize = 0x2aaaab7a414c <gtk_container_base_class_finalize>,
  class_init = 0x2aaaab7a36e2 <gtk_container_class_init>, class_finalize = 0,
  class_data = 0x0, instance_size = 112, n_preallocs = 0,
  instance_init = 0x2aaaab7a0957 <gtk_container_init>, value_table = 0x0}
        container_type = 0
#9  0x00002aaaab76e462 in IA__gtk_bin_get_type () at gtkbin.c:69
        bin_info = {class_size = 824, base_init = 0, base_finalize = 0,
  class_init = 0x2aaaab76e4de <gtk_bin_class_init>, class_finalize = 0,
class_data = 0x0,
  instance_size = 120, n_preallocs = 0, instance_init = 0x2aaaab76e410
<gtk_bin_init>,
  value_table = 0x0}
        bin_type = 0
#10 0x00002aaaab8ed4e6 in IA__gtk_window_get_type () at gtkwindow.c:320
        window_info = {class_size = 904, base_init = 0, base_finalize = 0,
  class_init = 0x2aaaab8f1897 <gtk_window_class_init>, class_finalize = 0,
class_data = 0x0,
  instance_size = 240, n_preallocs = 0, instance_init = 0x2aaaab8f1519
<gtk_window_init>,
  value_table = 0x0}
        window_type = 0
#11 0x00002aaaab8f14d6 in IA__gtk_window_new (type=GTK_WINDOW_TOPLEVEL) at
gtkwindow.c:1037
        __PRETTY_FUNCTION__ = "IA__gtk_window_new"
#12 0x00005555556166b4 in gaim_gtk_stock_init () at stock.c:143
        icon_factory = (GtkIconFactory *) 0x55555577cae0
        win = Variable "win" is not available.
#13 0x000055555561425f in gaim_gtk_ui_init () at main.c:460
No locals.
#14 0x0000555555595daa in gaim_core_init (ui=Variable "ui" is not available.
) at core.c:99
        ops = (GaimCoreUiOps *) 0x555555746180
        core = Variable "core" is not available.
#15 0x00005555556154df in main (argc=1, argv=0x7fffffbf67a8) at main.c:870
        opt_acct = 0
        opt_help = 0
        opt_version = 0
        opt_login = 0
        opt_nologin = 0
        dologin_ret = Variable "dologin_ret" is not available.