solaris 8/apache 1.3.23 compile problem

good day ... i'm trying to build 4.1.2 for solaris 8/apache 1.3.23. here is the error i get: make[3]: Entering directory `/usr/local/php-4.1.2/sapi/apache2filter' /bin/sh /usr/local/php-4.1.2/libtool --silent --mode=compile /usr/local/php-4.1.2/meta_ccld -I. -I/usr/local/php-4.1.2/sapi/apache2filter -I/usr/local/php-4.1.2/main -I/usr/local/php-4.1.2 -I/opt/1.3.23/include -I/usr/local/php-4.1.2/Zend -I/usr/local/php-4.1.2/ext/mysql/libmysql -I/home/oracle/8.1.7/rdbms/public -I/home/oracle/8.1.7/rdbms/demo -I/usr/local/php-4.1.2/ext/xml/expat -D_POSIX_PTHREAD_SEMANTICS -DSOLARIS2=280 -D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT -I/usr/local/php-4.1.2/TSRM -DTHREAD=1 -g -O2 -pthreads -DZTS -prefer-pic -c sapi_apache2.c sapi_apache2.c:31: apr_strings.h: No such file or directory In file included from sapi_apache2.c:32: /opt/1.3.23/include/ap_config.h:1386: warning: `XtOffsetOf' redefined /usr/local/php-4.1.2/main/php.h:342: warning: this is the location of the previous definition sapi_apache2.c:33: util_filter.h: No such file or directory sapi_apache2.c:364: warning: `NO_DATA' redefined /usr/include/netdb.h:402: warning: this is the location of the previous definition make[3]: *** [sapi_apache2.lo] Error 1 make[3]: Leaving directory `/usr/local/php-4.1.2/sapi/apache2filter' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/usr/local/php-4.1.2/sapi/apache2filter' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/usr/local/php-4.1.2/sapi' make: *** [all-recursive] Error 1 my configure options were: /usr/local/php-4.1.2> ./configure --with-apxs2=/opt/1.3.23/bin/apxs --with-oci8=/home/oracle/8.1.7 i must be doing something silly, but cannot see what it is. thanks for any help. -- michael