comparing two rpms built at different times

[Nagrik]

Hello Group,

I regularly build rpms on my machine on a daily basis and give them
unique number at the end of the major version number.

My requirement is that after building a latest rpm, I want to compare
it with the previous day built rpm of the same name and find out if
any thing changed on the "contents" side only.

If I use the built in "--dump" command and look at the md5 sum, it is
bound to be different, because of the change in modification time.

I want to exclude the modification time and compare two rpms of the
same name built at different times and find out if they are identical.

Please let me know how can I achieve this.

i will appreciate this and thanks in advance.

Thanks in advance.

nagrik