Problems installing version 4.2 with gd 2

Installing the new module apxs of php4.2 compiled with gd2.1, starting apache give me this error: Cannot load /etc/httpd/modules/libphp4.so into server: /etc/httpd/modules/libphp 4.so: undefined symbol: gdImageColorClosestAlpha I have compiled PHP with this options: ./configure --prefix=/usr --with-apxs=/usr/sbin/apxs --with-gd=../gd-2.0.1 --enable-safe-mode --with-config-file-path=/etc/httpd --with-exec-dir=/usr/bin --enable-magic-quotes --with-regex=system --with-ttf=/usr/lib/libttf.so --enable-track-vars --enable-xml --disable-debug --with-ldap --with-imap --enable-ftp --with-mysql --with-mcal=../libmcal --with-pdflib --with-curl --with-zlib --with-jpeg-dir=../jpeg-6b --with-tiff-dir --with-freetype-dir --enable-gd-native-ttf --enable-gd-imgstrttf --with-png-dir and I have followed the indication of Rasmus on the page http://www.php.net/~rasmus/gd.html Thanks.