Linking pg_config (postgres 8.4 in SCO 5.0.7)

Hi i have been compiling the Postgres 8.4 on SCO OpenServer 5.0.7 but
when the pg_config is linking i got the next error:

Undefined
symbol

get_html_path

first referenced in file pg_config.o

where can i find this function to make a success compiling of postgres???

by the way i search in google but only get a 1 link :-(
> http://www.google.com/search?hl=en&client=opera&rls=en&hs=327&num=100&q=posgtres+8.4+get_html_path+&aq=f&oq=&aqi=