How to make rpm auto install dependencies

Create a (local) repository and use yum to have it resolve the dependencies for you.

The CentOS wiki has a nice page providing a how-to on this. CentOS wiki HowTos/CreateLocalRepos.

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Summarized and further minimized (not ideal, but quickest):

1. Create a directory for you local repository, e.g. /home/user/repo.
2. Move the RPMs into that directory.
3. Fix some ownership and filesystem permissions: # chown -R root.root /home/user/repo
4. Install the createrepo package if not installed yet, and run # createrepo /home/user/repo # chmod -R o-w+r /home/user/repo
5. Create a repository configuration file, e.g. /etc/yum.repos.d/myrepo.repo containing [local] name=My Awesome Repo baseurl=file:///home/user/repo enabled=1 gpgcheck=0
6. Install your package using # yum install packagename