A user may choose to set his/her own PKG_CONFIG_PATH, which is useful in the
case of cross-compiling. We don't want to completely override the
PKG_CONFIG_PATH, just add to it.
Signed-off-by: Stewart Hildebrand <stewart.hildebrand@dornerworks.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Release-acked-by: Juergen Gross <jgross@suse.com>