libphp4.so: undefined symbol: _dmalloc_strlen

Hello I had installed PHP 4.2.3 with Apache 1.3.26 in a Linux RedHat 7.3 box, all work fine, but for the recent security upgrades and for other reasons i have the decision to upgrade to RedHat 8.0 all of this work fine except Apache. RH 8.0 have Apache 2.0.4? and when i try to install PHP appear the error: "cannot load ... into server: .../libphp4.so undefined symbol _dmalloc_strlen, i think that can a bug with Apache 2 and download Apache 1.3.27. I compile and install Apache fine and it work, but when i compile PHP (as a dynamic module) and try to restart Apache and the error appear too: "Cannot load /usr/local/apache/libexec/libphp4.so into server: /usr/local/apache/libexec/libphp4.so: undefined symbol: _dmalloc_strlen" I try to compile PHP integrated with Apache binary and noting happens the PHP module don't work an all PHP files is interpreted as text. I try too with Apache 1.3.24 and have the same message. WHY? THAT I CAN DO? SUGGESTIONS? PLEASE IS VERY URGENT MY COMPANY IS OUT OF INTERNET.