[Rpm-maint] nss/nspr location for configure

[Jan Engelhardt]

Hi,


rpm's configure script cannot find nss/nspr even though these are 
installed. As it turns out, configure.ac does not use nss/nspr's 
pkg-config files nor the nspr-config utility nor offers a way to 
pinpoint to the location.

This kinda makes it impossible to compile rpm on openSUSE right now as 
the headers are in /usr/include/nss3 and /usr/include/nspr4, 
respectively.