[PHP4BETA] php-4.0RC1 compile error in basic_functions.c

hi there, compiled with options as follows, ./configure --enable-xml --enable-track-vars --disable-debug --with-gd=.. /gd-1.8/ --with-iodbc=../libiodbc-2.50.3/ --with-mysql=../mysql-3.22.27/ --with- apxs=/home/local/apache_1.3.12/bin/apxs --with-zlib=../zlib-1.1.3/ --with-pdflib =../pdflib-2.01/ --with-sybase=../sybase/ then make, and ... /bin/sh ../../libtool --silent --mode=compile gcc -DHAVE_CONFIG_H -I. -I/home/lo cal/src/php-4.0RC1/ext/standard -I../.. -I../../Zend -I/home/local/src/php-4.0RC 1 -I/home/local/apache_1.3.12/include -I/home/local/src/gd-1.8 -I/home/local/src /mysql-3.22.27/include -I/home/local/src/libiodbc-2.50.3/include -I/home/local/s rc/sybase/include -I/home/local/src/php-4.0RC1/ext/xml/expat/xmltok -I/home/loca l/src/php-4.0RC1/ext/xml/expat/xmlparse -DXML_BYTE_ORDER=12 -D_REENTRANT -g -O2 -c basic_functions.c basic_functions.c:324: `php_if_dl' undeclared here (not in a function) basic_functions.c:324: initializer element for `basic_functions[201].handler' is not constant make[3]: *** [basic_functions.lo] Error 1 make[3]: Leaving directory `/home/local/src/php-4.0RC1/ext/standard' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/home/local/src/php-4.0RC1/ext/standard' make[1]: *** [all] Error 1 any help?