Problems compiling php3 with xml

[flruiz]

HI all!
I have a Solaris 2.7 with apache 1.3.9 and php 3.0.12.
I need to compile php with xml. When i try it:

/configure --with-custom-odbc=/usr/local/DataDirect --with-apache=../apache_1.3.12 --enable-track-vars --with-mysql=/usr/local/mysq
l --with-config-file-path=/usr/local/apache/php --with-gd=/usr/local/gd-1.3 --with-xml

I get the error:

checking for XML support... configure: error: cannot find XML include files

I suposse xml support comes whith apache_1.3.12. What can i do?

Thanks!