when you get the following message while building the vmware tools:

Searching for a valid kernel header path...
The path "" is not a valid path to the 3.8.13-16.3.1.el6uek.x86_64 kernel
headers.
Would you like to change it? [yes]

you first have to install the kernel-devel and kernel-header package:

> yum install kernel-uek-devel kernel-uek-headers

but there is still a version-file missing... a link can help:

ln -s /usr/src/kernels/3.8.13-16.3.1.el6uek.x86_64/include/generated/uapi/linux/version.h /usr/src/kernels/3.8.13-16.3.1.el6uek.x86_64/include/linux/version.h