помогите с cyrus-sasl

привет all!
у меня возникла проблема при установке cyrus-sasl 2.1.21 на RH9

configure проходит нормально, make выдает ошибку
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I../include -I../include -I/opt/mysql/include/mysql -Wall -W -g -O2 -MT allockey.lo -MD -MP -MF .deps/allockey.Tpo -c allockey.c -fPIC -DPIC -o .libs/allockey.lo
In file included from /usr/include/sys/uio.h:29,
from /usr/include/sys/socket.h:27,
from ../config.h:492,
from allockey.c:46:
/usr/include/bits/uio.h:43: redefinition of `struct iovec'
make[2]: *** [allockey.lo] Error 1
make[2]: Leaving directory `/distrib/cyrus-sasl-2.1.21/sasldb'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/distrib/cyrus-sasl-2.1.21'
make: *** [all] Error 2

в чем тут дело подскажите плз.