hola amigos de Ecualug

bueno tengo un problema
despues del installfest se me acurio instalar Mandrake 10.1 en mi maquina
me baje el instalador grafico de XFCE 4
al ejecutarlo me sale el siguiente error:

callbacks.c: In function `manageAppointment':
callbacks.c:182: error: `ctl_start' undeclared (first use in this function)
callbacks.c:182: error: (Each undeclared identifier is reported only once
callbacks.c:182: error: for each function it appears in.)
callbacks.c:182: error: `ctl_end' undeclared (first use in this function)
callbacks.c:183: error: `ctl_text' undeclared (first use in this function)
callbacks.c: In function `on_btClose_clicked':
callbacks.c:213: warning: implicit declaration of function `dialogWin'
gmake[2]: *** [xfcalendar-callbacks.o] Error 1
gmake[2]: *** Se espera a que terminen otras tareas....
gmake[2]: Leaving directory `/root/tmp/xfce4-4.2.1.1-installer/xfcalendar/src'
gmake[1]: *** [all-recursive] Error 1
gmake[1]: Leaving directory `/root/tmp/xfce4-4.2.1.1-installer/xfcalendar'
gmake: *** [all] Error 2
!! Failed to build xfcalendar, see the errors above
!! for details on the problem.

(installer-gui:29559): Gtk-CRITICAL **: file ../../gtk/gtktextbuffer.c: line 557 (gtk_text_buffer_emit_insert): assertion `g_utf8_validate (text, len, NULL)' failed

(installer-gui:29559): Gtk-CRITICAL **: file ../../gtk/gtktextbuffer.c: line 557 (gtk_text_buffer_emit_insert): assertion `g_utf8_validate (text, len, NULL)' failed

(installer-gui:29559): Gtk-CRITICAL **: file ../../gtk/gtktextbuffer.c: line 557 (gtk_text_buffer_emit_insert): assertion `g_utf8_validate (text, len, NULL)' failed

(installer-gui:29559): Gtk-CRITICAL **: file ../../gtk/gtktextbuffer.c: line 557 (gtk_text_buffer_emit_insert): assertion `g_utf8_validate (text, len, NULL)' failed

si Alguin me puede ayudar! por que he echo de todo simpre sale lo mismo!