I'm running stock slackaware 9, and I added the ghostscript fonts to
fontconfig. After installing fontconfig version 2.1.93, when I run, as root,
fc-cache -vf, I get a segfault.  gdb backtace is:

#0  0x40136fce in strcasecmp () from /lib/libc.so.6
(gdb) up
#1  0x400242a7 in FcFreeTypeQuery (
    file=0x804b9a0 "/usr/share/fonts/ghostscript/hrgrr.pfa", id=0,
    blanks=0x8050088, count=0x0) at fcfreetype.c:577
577             if (strcasecmp("thin", psfontinfo.weight) == 0)
(gdb) p psfontinfo
$1 = {version = 0x0,
  notice = 0x805db88 "A Freeware character set extension of the Public Domain
Hershey fonts - not to be sold - diacritics added by Thomas Wolff",
  full_name = 0x0, family_name = 0x0, weight = 0x0, italic_angle = 0,
  is_fixed_pitch = 0 '\0', underline_position = -120, underline_thickness = 15}


(gdb) backtrace
#0  0x40136fce in strcasecmp () from /lib/libc.so.6
#1  0x400242a7 in FcFreeTypeQuery (
    file=0x804b9a0 "/usr/share/fonts/ghostscript/hrgrr.pfa", id=0,
    blanks=0x8050088, count=0x0) at fcfreetype.c:577
#2  0x4002393b in FcFileScan (set=0x804eae0, dirs=0x8050340, cache=0x0,
    blanks=0x8050088, file=0x804b9a0 "/usr/share/fonts/ghostscript/hrgrr.pfa",
    force=1) at fcdir.c:113
#3  0x40023c60 in FcDirScan (set=0x804eae0, dirs=0x8050340, cache=0x0,
    blanks=0x8050088, dir=0x804f930 "/usr/share/fonts/ghostscript", force=1)
    at fcdir.c:221
#4  0x08048cf4 in scanDirs (list=0x804e168, config=0x804a788,
    program=0xbffffb32 "fc-cache", force=1, verbose=1) at fc-cache.c:166
#5  0x08048d52 in scanDirs (list=0x804e508, config=0x804a788,
    program=0xbffffb32 "fc-cache", force=1, verbose=1) at fc-cache.c:197
#6  0x0804900b in main (argc=134538504, argv=0xbffffa24) at fc-cache.c:278
#7  0x400d0bb4 in __libc_start_main () from /lib/libc.so.6