mapserver 6.5-dev segfault

root@gis:/usr/local/src/mapserver/build# gdb mapserv
GNU gdb (GDB) 7.4.1-debian
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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Reading symbols from /usr/local/src/mapserver/build/mapserv...done.
(gdb) run
Starting program: /usr/local/src/mapserver/build/mapserv
warning: no loadable sections found in added symbol-file system-supplied DSO at 0x7ffff7ffa000
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff79c36e7 in msDrawLegendIcon (map=0x61c000, lp=0x624410, theclass=0x626370, width=375, height=95, image=0x9e9680, dstX=5, dstY=5, scale_independant=1, hittest=0x0)
    at /usr/local/src/mapserver/maplegend.c:165
165	        if (width/symbol->sizex < height/symbol->sizey)
(gdb) print symbol
$1 = (symbolObj *) 0x0