<-------------my configure cmd:----------------->
./configure --prefix=/usr/local/php --with-mysql=/usr/local/mysql --enable-ftp --enable-force-cgi-redirect --with-ldap=/usr/local/ldap --with-imap=/usr/local/imap-4.5 --with-config-file-path=/usr/local/php/lib --enable-calendar --enable-sysvsem --enable-sysvshm --with-zlib=/usr/local --enable-yp --enable-inline-optimization --with-gd=/usr/local --with-ttf=/usr/local --enable-magic-quotes --enable-sigchild --enable-track-vars --enable-sockets

<--------- error code -------------------------->
sockets.c: In function `php_minit_sockets':
sockets.c:189: `MSG_WAITALL' undeclared (first use in this function)
sockets.c:189: (Each undeclared identifier is reported only once
sockets.c:189: for each function it appears in.)
make[3]: *** [sockets.lo] Error 1
make[3]: Leaving directory `/work/src/php-4.0.3/ext/sockets'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/work/src/php-4.0.3/ext/sockets'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/work/src/php-4.0.3/ext'
make: *** [all-recursive] Error 1

<---------------what does i do--------------------->
can you help me?because i some work with socket
and about server push technology,thanks!