root@ipaq-pxa270:/$ DISPLAY=:0 gdb /usr/libexec/xtscal.bin
(gdb) run
Starting program: /usr/libexec/xtscal.bin

Program received signal SIGSEGV, Segmentation fault.
FcObjectPtrToMatcher (o=45) at fcmatch.c:277
277     fcmatch.c: No such file or directory.
        in fcmatch.c
(gdb) bt
#0  FcObjectPtrToMatcher (o=45) at fcmatch.c:277
#1  0x40065dd4 in FcFontSetMatch (config=0x30100, sets=0x0, nsets=196864,
    p=0x1eaa0, result=0xbea33b44) at fcmatch.c:575
#2  0x400666d0 in FcFontMatch (config=0xe, p=0x1eaa0, result=0xbea33b44)
    at fcmatch.c:769
#3  0x4002b704 in XftFontMatch (dpy=0x15008, screen=0, pattern=0x1d4a8,
    result=0xbea33b44) at xftfont.c:61
#4  0x4002b934 in XftFontOpenName (dpy=0x15008, screen=0,
    name=0xc3e0 "sans-10") at xftfont.c:137
#5  0x0000a548 in main (argc=<value optimized out>, argv=<value optimized out>)
    at main.c:603
(gdb)