rpm reduces the size of shared library

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http://stackoverflow.com – I am making an rpm of my shared library. In the .spec file, I am writing the normal install commands in %install part ,making some soft links, running ldconfig on %post and %postun. I am not building library in rpm because I already have compiled and stripped library with me. But it happens that when I see the file size of the library(in my development folder) before installing my shared library with rpm, its 24k and when I see the deployed file of my shared library on /usr/lib64/, the size is around 23.8k due to which the hashes of library before deployment and after deployment doesnt match ( (HowTos)