troubles building mod_jserv.so for AIX 4.3.3

[Bo...@syntegra.bt.co.uk]

I'm having problems with building mod_jserv.so for AIX 4.3.3.  My attempts
to compile come up with the following error:

jserv_ajpv12.c: In function `ajpv12_handle_in':
jserv_ajpv12.c:364: structure has no member named `fd_in'
jserv_ajpv12.c:376: structure has no member named `fd_in'
jserv_ajpv12.c:391: structure has no member named `fd_in'
jserv_ajpv12.c:402: structure has no member named `fd'
jserv_ajpv12.c:404: structure has no member named `fd'

Anyone know what might be causing this?  Alternatively, would there be a
suitable binary ready to download somewhere?  Surely I'm not the first!

I am setting up Tomcat 3.1 together with IBM's HTTPServer 1.3.6.3 on AIX
3.3.3

Bob Draper