mod_security2 compile issue

[LawsHosting]

[SOLVED] mod_security2 compile issue

Quick question.

Doing this http://forum.directadmin.com/showthread.php?t=32189&p=164054#post164054 generates

/usr/bin/ld: cannot find -lexpat
collect2: ld returned 1 exit status
make[1]: *** [mod_security2.la] Error 1
make[1]: Leaving directory `/root/modsecurity-apache_2.7.4/apache2'
make: *** [all] Error 2

Obviously I need to apt-get something..

Edit....

Needed apt-get install libexpat1-dev