kpdf/xpdf

If I understand correctly, kpdf uses xpdf as a base rendering engine. The xpdf code in the Trinity source tree uses 3.02 from February 2007, which has been patched for security reasons several times since then. There also is a patch to improve a scrolling speed bug that is caused by more recent gcc versions. The most recent version of xpdf is 3.03. Many distros have these patches applied or use 3.03. * Does compiling kpdf use an existing installed xpdf from the distro or does the build process only use the xpdf code that is in the kpdf source tree? * If the latter, then should we be patching the Trinity version of xpdf? Or updating to the latest release of xpdf? * If the latter, what is needed to change the build process to use an existing installed xpdf rather than the stale version in the Trinity sources? Darrell