./configure \
--with-mysql=/usr/local \
--with-apxs=/usr/local/apache/bin/apxs \
--enable-track-vars \
--disable-magic-quotes \
--disable-debug \
--enable-ftp \
--with-gettext \
--with-xml \
--with-dom \
--enable-wddx \
--with-curl \
--with-pgsql \
--with-zlib \
--enable-versioning \
--enable-sockets \
--with-openssl \
--with-snmp \
--with-mcrypt

make fails:

/bin/sh /usr/local/sources/php4/libtool --silent --mode=compile gcc  -I. -I/usr/local/sources/php4/ext/domxml -I/usr/local/sources/php4/main -I/usr/local/sources/php4 -I/usr/local/apache/include -I/usr/local/sources/php4/Zend -I/usr/local/ssl/include -I/usr/local/include -I/usr/local/include/mysql -I/usr/include/ucd-snmp -I/usr/local/sources/php4/ext/xml/expat -I/usr/local/sources/php4/TSRM  -DLINUX=2 -DMOD_SSL=207101 -DUSE_HSREGEX -DEAPI -DUSE_EXPAT -g -O2 -prefer-pic  -c php_domxml.c
php_domxml.c: In function `php_xpathptr_eval':
php_domxml.c:2533: `XPATH_XSLT_TREE' undeclared (first use in this function)
php_domxml.c:2533: (Each undeclared identifier is reported only once
php_domxml.c:2533: for each function it appears in.)
make[3]: *** [php_domxml.lo] Error 1
make[3]: Leaving directory `/usr/local/sources/php4/ext/domxml'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/usr/local/sources/php4/ext/domxml'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/usr/local/sources/php4/ext'
make: *** [all-recursive] Error 1

- Colin

P.S. Also, it now appears you need libtool >= 1.4 ... the docs on cvs.php.net should be changed, I suppose.