I compile and install PHP with mysql support (this also
happens using --with-apache or --with-shared-apache):

./configure --with-shared-apache=../apache_1.3.9 \
            --with-mysql \
            --enable-track-vars

I then compile Apache 1.3.9 including "-enable-shared=max":

./configure --prefix=/usr/local/apache \
--enable-module=most \
--enable-shared=max \
--add-module=mod_frontpage.c \
--activate-module=src/modules/perl/libperl.a \
--activate-module=src/modules/php3/libphp3.a \
--enable-shared=php3

When the Apache compile reaches the standard modules, the following
compile failure happens in mod_vhost_alias.c:

===> src/modules
===> src/modules/standard
gcc -c -I../..  -I/usr/lib/perl5/5.00503/i486-linux/CORE  -I../../os/unix -I../../include   -DLINUX=2 -DMOD_PERL -DUSE_PERL_SSI -Dbool=char -DHAS_BOOL -I/usr/local/include -DUSE_HSREGEX -DUSE_EXPAT -I../../lib/expat-lite `../../apaci` mod_so.c
rm -f libstandard.a
ar cr libstandard.a mod_so.o 
ranlib libstandard.a
gcc -c -I../..  -I/usr/lib/perl5/5.00503/i486-linux/CORE  -I../../os/unix -I../../include   -DLINUX=2 -DMOD_PERL -DUSE_PERL_SSI -Dbool=char -DHAS_BOOL -I/usr/local/include -DUSE_HSREGEX -DUSE_EXPAT -I../../lib/expat-lite `../../apaci` -fpic -DSHARED_MODULE mod_vhost_alias.c && mv mod_vhost_alias.o mod_vhost_alias.lo
gcc -rpath /usr/local/lib/mysql -shared -o mod_vhost_alias.so mod_vhost_alias.lo 
gcc: unrecognized option `-rpath'
/usr/local/lib/mysql: file not recognized: Is a directory
make[4]: *** [mod_vhost_alias.so] Error 1
make[3]: *** [all] Error 1
make[2]: *** [subdirs] Error 1
make[2]: Leaving directory `/usr/local/src/apache_1.3.9/src'
make[1]: *** [build-std] Error 2
make[1]: Leaving directory `/usr/local/src/apache_1.3.9'
make: *** [build] Error 2

Even though this is an Apache compile, I think the calls being made for
mysql and -rpath are created by the PHP "make install" routines.

When I revert to a static build (no --enable-shared=max), everything works fine.

./configure --prefix=/usr/local/apache \
--enable-module=most \
--add-module=mod_frontpage.c \
--activate-module=src/modules/perl/libperl.a \
--activate-module=src/modules/php3/libphp3.a