[libvirt-users] Unable to configure libvirt

Hello, When I want to install libvirt-0.10.0 from source, I get this error at the configure stage checking for libdevmapper.h... no configure: error: You must install device-mapper-devel/libdevmapper >= 1.0.0 to compile libvirt However the package is installed on my system # yum list device-mapper-libs.x86_64 Installed Packages device-mapper-libs.x86_64                                1.02.74-10.el6                                @base/$releasever   What is the problem then? Regards, Mahmood