PHP version 5.2.11 or later is required.
The libxml and curl extensions must also be enabled
for the Apache Solr extension to be available.
libxml2 2.6.31 or later is required.
libcurl 7.18.0 or later is also required.
The above library versions are required and
attempting to hack the code to make it compile is strongly
discouraged. It will fail, possibly with errors that could be hard