TSearch2: Can't build gendict output

PG 8.2.3 + tsearch_snowball_82.gz.

gendict line:

./config.sh -n de -s -p german_UTF_8 -v -C 'Snowball stemmer for German
(UTF8)'

make in contrib/dict_de/:

gcc -march=prescott -O2 -pipe -Wall -Wmissing-prototypes -Wpointer-arith
-Winline -Wdeclaration-after-statement -Wendif-labels
-fno-strict-aliasing -fpic -I../tsearch2/snowball -I../tsearch2 -I.
-I../../src/include -D_GNU_SOURCE -c -o stem.o stem.c
stem.c: In function ‘r_prelude’:
stem.c:163: error: too many arguments to function ‘in_grouping_U’
stem.c:168: error: too many arguments to function ‘in_grouping_U’
stem.c:177: error: too many arguments to function ‘in_grouping_U’
stem.c: In function ‘r_mark_regions’:
stem.c:212: error: too many arguments to function ‘out_grouping_U’
stem.c:217: error: too many arguments to function ‘in_grouping_U’
stem.c:227: error: too many arguments to function ‘out_grouping_U’
stem.c:232: error: too many arguments to function ‘in_grouping_U’
stem.c: In function ‘r_standard_suffix’:
stem.c:320: error: too many arguments to function ‘in_grouping_b_U’
stem.c:347: error: too many arguments to function ‘in_grouping_b_U’
make: *** [stem.o] Error 1

What is the problem?

Thanks.

--
Regards,
Hannes Dorbath