We were trying to build the tizen source code for x86_64 architecture in Ubuntu 64bit 12.10 version, but we were encountering some build issues.
We get:

“The following packages failed to build because export source files ro build environment failed:

rpm-python-4.9.1-1

nothing provides cmake
nothing provides python-devel
nothing provides rpm……. and so on for many such packages.

We already have all these packages installed for Linux Ubuntu.