Compile Error

Anyone know what would cause this error ? -D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT -g -O2 -c base64.c && touch base64.lo gcc -DHAVE_CONFIG_H -I. -I/export/download/php-4.0RC1/ext/standard -I../.. -I../../Zend -I/export/download/php-4.0RC1 -I /export/download/apache_1.3.12/src/include -I/export/download/apache_1.3.12/src/os/unix -I/usr/local/mysql/include -I/ex port/download/php-4.0RC1/ext/xml/expat/xmltok -I/export/download/php-4.0RC1/ext/xml/expat/xmlparse -DXML_BYTE_ORDER=21 -D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT -g -O2 -c basic_functions.c && touch basic_functions.lo 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 `/export/download/php-4.0RC1/ext/standard' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/export/download/php-4.0RC1/ext/standard' make[1]: *** [all] Error 1 make[1]: Leaving directory `/export/download/php-4.0RC1/ext' make: *** [all-recursive] Error 1 ---------------------------------------------- Compile Settings ./configure --with-apache=/export/download/apache_1.3.12 --with-mysql=/usr/local/mysql --enable-safe-mode -- enable-track-vars --enable-url-includes --enable-trans-sid --disable-debug Solaris 7 (sparc) Thanks