configure problems with GD

Hi I've been trying to upgrade a (Linux, Fedora 5) server to: Apache 2.2.8 PHP 5.2.5 MySQL 5.0.51a using similar configurations/options to the current installation (Apache2.0.x,PHP 5.0.16) I started with PHP and succeeded (having installed and built from source Zlib, LibXML, libpng, jpeg-v6b) in building a new CGI/CLI version without MySQL, but including GD. I then built MySQL without problem. Rebuilt PHP with MySQL. No problem. I then built Apache. I had to rebuild zlib (with the ./configure -s option) I attempted to rebuild PHP with apxs, it failed with a "If configure fails try --with-xpm-dir=<DIR>" I re-attempted without apxs (using my last auccessful configuation script) it continues to fail on gd/xpm. I have attempted to build libgd 2.0.35 (failed duing make) I have attempted to build libgd 2.0.34. Succeeded. Rebuilding PHP now fails with "configure: error: GD build test failed. Please check the config.log for details." (after several failed gd function tests eg checking for gdImageString16 in -lgd... no) What am I doing wrong? What other information should I provide to help diagnose this? Mike