Can't get it too compile - nntpcache-0.88

[stj@kraix05.allianse.no]

Hello !

	I am trying to compile nntpcache on an RS-6000 AIX 4.1.4, and I
get these errors

        for d in libproff dbz doc ; do { ( cd $d && make all ) } done
Target "all" is up to date.
        gcc -g -O -Wall -pipe  -DHAVE_DIRENT_H=1 -DSTDC_HEADERS=1 -DHAVE_SYS_WAc
In file included from ../nntpcache.h:73,
                 from dbz.c:3:
:24: parse error before `r_set'
:24: warning: data definition has no type or storage class
make: The error code from the last command is 1.


Stop.
make: The error code from the last command is 2.


Stop.

	Any ideas, I am not quite sure where to start looking, I can't find
any "fd_set" definition at least .....

Thanks !

stj.