php4b4 patchlevel 1 vs apache

Trying this list now, if this isn't the right place, could someone point me to a better place? I've tried the forums at zend.com and phpbuilder.com, but haven't solved the problem yet. I'm trying to install php4 as a module in apache, on a solaris machine. The problem seems to be that after the "make;make install" of php, the stuff in apache/src/modules/php4 (e.g. mod_php4.c) has #include statements that do not work with the subsequent build attempt of apache. Not only does the php include path not get put into the Makefiles, but also the subdirectories under which the files are installed (e.g. zend.h is under a subdir "Zend") are not reflected in the .c file or other .h files. So, even when I "fake out" the apache configure process by setting an envvar INCLUDES="-I/web/php/include/php", only some of the .h files are found (the ones in that directory, not the ones in subdirs of it). One other clue: when I further hack the INCLUDES var to explicitly list the individual subdirectories, then more .h files are (obviously) found. *However*, further along in the make process, I get complaints about two more .h files, "main.h" and I think "php_variables.h", which are not installed into the php directory at all. They do exist in the source dir, but aren't installed. I'm using --prefix=/web/php for the php config/install. I've tried having the GNU tools both before and after the sun compiler tools in my PATH. I do receive a warning that bison should be upgraded (we're at 1.24, the warning states 1.25 is needed for some functionality). I read the warning as just that, a warning, and not the cause of failure. Am I wrong about that? Apache version 1.3.12. Any hints or pointers would be greatly appreciated at this point, I've been beating my head against this wall long enough! :-) Thanks much in advance... -glenn glittle@ucsd.edu