php 4.1.0 and iplanet enterprise 6.0

i'm having problems getting php 4.1.0 to play nice with iplanet enterprise 6.0sp2. when ever i attempt to open a page with a php extension my web server crashes with this error: catastrophe (21138): Server crash detected (signal SIGSEGV) info (21138): Crash occurred in NSAPI SAF php4_execute info (21138): Crash occurred in function _pthread_mutex_lock from module /usr/lib/libthread.so.1 i had no errors at compilation time. i compiled with the following command: env \ CC=gcc \ CXX=g++ \ CFLAGS="-O2 -mv8 -mcpu=ultrasparc -I/local/include -I/local/include/openssl -I/local/include/ucd-snmp -I/local/include/c-client" \ CPPFLAGS="-I/local/include" \ LDFLAGS="-L/local/lib -R/local/lib -L/local/ssl/lib -R/local/ssl/lib -L/local/lib/c-client -R/local/lib/c-client" \ TMPDIR="/tmp" \ ./configure \ --prefix=/local \ --sysconfdir=/etc \ --localstatedir=/var \ --with-config-file-path=/etc/php/ \ --with-nsapi=/var/iplanet/servers \ --with-openssl=/local \ --with-db3=/local/BerkeleyDB-3.2 \ --with-imap-ssl=/local \ --with-imap=/local \ --with-ldap=/local \ --with-zlib=/usr \ --enable-sysvshm \ --enable-sysvsem \ --enable-track-vars \ --enable-force-cgi-redirect \ --with-gettext \ --with-regex=system \ --enable-inline-optimization removing '--enable-inline-optimization' and '-mv8 -mcpu=ultrasparc' didn't make any difference. any ideas?