problems with xml rcp switch & apache

Hi, i am trying to install php with the following config.: ./configure --with-apache=/INSTALLS/apache_1.3.26 --enable-ftp --with-xmlrpc --with-xml-dom --with-oci8=/wwwhome/oracle/OraHome1/ --with-mysql --enable-trans-sid --enable-track_vars --with-zlib if i leave the --with-xmlrpc out i can also compile apache... ./configure --prefix=/usr/local/apache_static --activate-module=src/modules/php4/libphp4.a --enable-module=ssl with it, compiling apache gives the following error messages: modules/php4/libphp4.a(iconv.o): In function `php_iconv_string': /INSTALLS/php-4.2.2/ext/iconv/iconv.c:168: undefined reference to `libiconv_open' /INSTALLS/php-4.2.2/ext/iconv/iconv.c:178: undefined reference to `libiconv' /INSTALLS/php-4.2.2/ext/iconv/iconv.c:189: undefined reference to `libiconv_close' modules/php4/libphp4.a(encodings.o): In function `convert': /INSTALLS/php-4.2.2/ext/xmlrpc/libxmlrpc/encodings.c:53: undefined reference to `libiconv_open' /INSTALLS/php-4.2.2/ext/xmlrpc/libxmlrpc/encodings.c:64: undefined reference to `libiconv' /INSTALLS/php-4.2.2/ext/xmlrpc/libxmlrpc/encodings.c:84: undefined reference to `libiconv_close i installed a new version of libiconv but that did not help. any ideas what i am doing wrong? thank you very much in advance. Tibor