sorry to disturb you all. but i encounter some trouble on building rpm 4.8.0 source. if this mail is not use for this purpose, please let me know and i will change to the right place.
i get the rpm source from http://rpm.org/releases/rpm-4.8.x/ and the SHA1SUM is correct.
and when i use configure to check the need file i encounter "configure: error:missing required NSPR / NSS header" the following is my step.