Problems while building xindy

["Stephan E. Schlierf" <stephan.schlierf@cse.de>]

Hello there,

while trying to build xindy 2.0b (I
downloaded xindy-2.0b-i386-linux-elf.tar.gz and
xindy-2.0b.tar.gz from the Dante ftp server) on a SuSE Linux 6.0 I get the
following error after a "make all":
 
cc -O2 tex2xindy.c -o tex2xindy -lfl
/usr/lib/libfl.a(libmain.o): In function `main':
libmain.o(.text+0x1): undefined reference to `yylex'
collect2: ld returned 1 exit status
make: *** [tex2xindy] Error 1

What am I doing wrong?
TIA
Stephan