When IMAP 4.4 is installed, PHP3 builds correctly, but when it is linked into Apache, Apache's configure script bombs out with :

Creating Makefile in src
 + configured for FreeBSD 4.0 platform
 + setting C pre-processor to cc -E
 + checking for system header files
 + adding selected modules
    o rewrite_module uses ConfigStart/End
      enabling DBM support for mod_rewrite
    o db_auth_module uses ConfigStart/End
      using Berkeley-DB/1.x for mod_auth_db (-lc)
    o php3_module uses ConfigStart/End
/usr/local/lib/libc-client4.so: undefined reference to `mm_expunged'
/usr/local/lib/libc-client4.so: undefined reference to `mm_diskerror'
/usr/local/lib/libc-client4.so: undefined reference to `mm_lsub'
/usr/local/lib/libc-client4.so: undefined reference to `mm_flags'
/usr/local/lib/libc-client4.so: undefined reference to `mm_fatal'
/usr/local/lib/libc-client4.so: undefined reference to `mm_nocritical'
/usr/local/lib/libc-client4.so: undefined reference to `mm_notify'
/usr/local/lib/libc-client4.so: undefined reference to `mm_searched'
/usr/local/lib/libc-client4.so: undefined reference to `mm_status'
/usr/local/lib/libc-client4.so: undefined reference to `mm_login'
/usr/local/lib/libc-client4.so: undefined reference to `mm_list'
/usr/local/lib/libc-client4.so: undefined reference to `mm_critical'
/usr/local/lib/libc-client4.so: undefined reference to `mm_exists'
/usr/local/lib/libc-client4.so: undefined reference to `mm_log'
/usr/local/lib/libc-client4.so: undefined reference to `mm_dlog'