error messages -- Freeing 0x.....

I've rebuilt php and apache from a snapshot on Feb 09 @ 16:45. I'm getting messages in my error_log such as the following: mod_php4.c(328) : Freeing 0x0824DDB4 (5 bytes), script=/var/baygate/www/dt/informix/forms/vps_gf.html mod_php4.c(324) : Freeing 0x08242B44 (6 bytes), script=/var/baygate/www/dt/informix/forms/vps_gf.html mod_php4.c(324) : Freeing 0x0824D1F4 (6 bytes), script=/var/baygate/www/dt/common/desktop/blank.html mod_php4.c(328) : Freeing 0x0828EF34 (5 bytes), script=/var/baygate/www/dt/common/desktop/blank.html mod_php4.c(324) : Freeing 0x082429F4 (6 bytes), script=/var/baygate/www/dt/common/desktop/graphsubmit.html mod_php4.c(328) : Freeing 0x0824D964 (5 bytes), script=/var/baygate/www/dt/common/desktop/graphsubmit.html mod_php4.c(328) : Freeing 0x082C03D4 (5 bytes), script=/var/baygate/www/dt/informix/forms/graphform.html mod_php4.c(324) : Freeing 0x0823AF94 (6 bytes), script=/var/baygate/www/dt/informix/forms/graphform.html mod_php4.c(328) : Freeing 0x082C7994 (5 bytes), script=/var/baygate/www/dt/admin/session.php mod_php4.c(324) : Freeing 0x08233B14 (6 bytes), script=/var/baygate/www/dt/admin/session.php Are these warning messages that I need to be concerned about? (i.e. do they indicate memory leaks or some type of memory corruption?). Can I disable them by compiling with a particular option? Thanks in advance... --pk