Apache - PHP error

Hi... After installing PHP on my Mac system, I get this error showing in my httpd.conf file: Syntax error on line 257 of /Library/Apache2/conf/httpd.conf: Cannot load /Library/Apache2/modules/libphp5.so into server: Library not loaded: /sw/lib/libiconv.2.dylib\n Referenced from: /Library/Apache2/modules/libphp5.so\n Reason: Incompatible library version: libphp5.so requires version 6.0.0 or later, but libiconv.2.dylib provides version 5.0.0 I THINK the problem here is that the Apple Developers Tools are out of date. Is that the case, or is the php package incomplete? Thanks