Compiling rsprng

I try to compile rsprng on the MacOSX (10.3.9).

I got the binary program of libsprng.a from the
http://www.biostat.umn.edu/~nali/SoftwareListing.html, but it did  
not work
properly. The following error occurred.

ld: table of contents for archive: /usr/local/lib/libsprng.a is out  
of date;
rerun ranlib(1) (can't load from it)

Does anyone have a libsprng.a or know how to compile the sprng  
source file
for creating the library?

Toshinari Kamakura