For some (reasonable) reason, usually Fedora strongly discourages to ship
static archives in binary rpms:
https://fedoraproject.org/wiki/Packaging/Guidelines#Packaging_Static_Libraries
You can see this also happened on postgresql:
http://pkgs.fedoraproject.org/gitweb/?p=postgresql.git;a=commitdiff;h=a6a1e9bfab6192bbdaea41e88368ae7d242316d7
You should really check if libpgport.a is really needed, i.e.
check it the package you are trying to build supports dynamic
linkage (against libpgport.so).