[Solved] : You must install the pciaccess module to build with udev

fix on Centos:
yum install libpciaccess-devel

Nguyen Si Nhan

[Solved] : configure: error: You must install device-mapper-devel/libdevmapper >= 1.0.0 to compile libvirt

On Centos
Fix: yum install device-mapper device-mapper-devel -y

Nguyen Si Nhan

/usr/lib64/ruby/gems/1.8/gems/activesupport-3.2.11/lib/active_support/dependencies.rb:251:in `require': no such file to load -- fcgi (LoadError)

Problem: Apache can not load dispatch.fcgi it return this error:
/usr/lib64/ruby/gems/1.8/gems/activesupport-3.2.11/lib/active_support/dependencies.rb:251:in `require': no such file to load -- fcgi (LoadError)

Fix:
Adding to lines to dispatch.fcgi solved it:

require 'rubygems'

require 'fcgi'
Have Funs!!!

(Source: http://www.redmine.org/boards/2/topics/31410 )