Urgent: Memory Leak in 1.3.28 ?

Hi,
it seems like I have a problem in compiling apache under debian 3.0. Although everything runs fine I'm having a memory leak, which
might be related to compiling apache this way:

apache:
../configure --prefix=/opt/apache_1.3.28 --enable-module=expires --enable-module=rewrite --enable-suexec --suexec-caller=www
php:
../configure --with-mysql --with-apache=../apache_1.3.28
make
make install
apache:
../configure --prefix=/opt/apache_1.3.28 --enable-module=expires --enable-module=rewrite --enable-suexec --suexec-caller=www --act
ivate-module=src/modules/php4/libphp4.a
make
make install

used compiler:
gcc version 2.95.4 20011002 (Debian prerelease)

everything runs fine, but while the apache is running physical memory is getting lower and lower and just before it is used up,
apache threads are exploding and the system is unusable.

any ideas / hints ???

thanks, matt