Fontpath
bash> cat xgetfontpath.c
main() {
int n;
char **p = (char **)XGetFontPath(XOpenDisplay(":0.0"), &n);
for(; 0 < n--; printf("%s\n", *p++));
}
bash> cc -o xgetfontpath xgetfontpath.c /usr/X11R6/lib/libX11.so.6
bash> ./xgetfontpath
/usr/X11R6/lib/X11/fonts/misc/
/usr/X11R6/lib/X11/fonts/Speedo/
/usr/X11R6/lib/X11/fonts/latin2/Type1/
/usr/X11R6/lib/X11/fonts/Type1/
/usr/X11R6/lib/X11/fonts/75dpi/
/usr/share/ghostscript/fonts/