Problems compiling

 I get this error below when compiling efilter 0.2.. 
 Any ideas?

---------------------- 
[root@www efilter-0.2]# make
gcc -O3 -I. -I/usr/include/eps -o efilter.o -c efilter.c
efilter.c: In function `efilter_init':
efilter.c:43: `INTERFACE_STDIN' undeclared (first use in this function)
efilter.c:43: (Each undeclared identifier is reported only once
efilter.c:43: for each function it appears in.)
efilter.c:43: warning: assignment makes integer from pointer without a
cast
efilter.c: In function `efilter_rejected':
efilter.c:57: too few arguments to function `eps_next_header'
efilter.c:57: too few arguments to function `eps_next_header'
efilter.c:78: `BREAK_STOP' undeclared (first use in this function)
efilter.c:82: warning: assignment makes pointer from integer without a
cast
efilter.c:82: warning: assignment makes pointer from integer without a
cast
efilter.c: In function `efilter_kill':
efilter.c:96: too few arguments to function `eps_end'
efilter.c: In function `efilter_check_a_header':
efilter.c:143: warning: assignment makes pointer from integer without a
cast
efilter.c:145: warning: assignment makes pointer from integer without a
cast
make: *** [efilter.o] Error 1
[root@www efilter-0.2]#