PHP 4 build trouble

Hi all, How can I customise the php 4 build process beyond configure options? I usually use $ LDFLAGS=... CPPFLAGS=... ./configure ... but this method fails utterly with php4 (as ldd .libs/libphp4.so proves). I need to add additional -I and -L directives, and the whole build process is too opaque to find out which files to modify after running configure. Any changes made to config_vars.mk or *.la[i] are not picked up. Second issue: configure seems to add loads of -L/-R directives I just don't want (-R/usr/ucblib is *bad* on Solaris). Again, which files do I need to modify after running configure? 3rd, php4 doesn't seem to compile with the newly released mod_dav 1.0. (pointers to the list archive are welcome, I have only skimmed it briefly.) Please Cc: replies, I am not subscribed. Thanks.