I'm use Apache 1.3.9
#!/bin/sh
./configure \
    --prefix=/usr/local/www \
    --enable-module=expires \
    --enable-module=headers \
    --enable-module=info \
    --enable-module=rewrite \
    --enable-module=so \
    --enable-module=speling \
    --enable-shared=max 

with php-3.0.12 module

#!/bin/sh
./configure \
    --host=i686-pc-linux-gnulibc1 \
    --prefix=/usr/local/php3 \
    --with-apxs=/usr/local/www/bin/apxs \
    --with-mod_charset \
    --with-mysql=/usr/local/mysql \
    --without-gd \
    --with-zlib \
    --with-config-file-path=/usr/local/etc

Server don't started.
I'm comment  line into httpd.conf

LoadModule php3_module libexex/libphp3.so
and
AddModule mod_php3.c

> ./apachectl start
Started httpd it's OK!

I'm remove comment and restarting
> kill -HUP `cat httpd.pid`
Apache restarted  - OK!