When installed, files in /usr/lib/sa references /var/tmp/sysstat-3.2.3 directory (where it was built). This occurs with new rpm build macros (%configure) only -- it uses ./configure --prefix=/var/tmp/... --bindir=/var/tmp/... etc, and after this, when making things, make rules will generate file(s) from file(s).in using those paths... This is probably a bug in rpm, not in sysstat, since the last one seemed to do the right thing...
fixed in 3.2.4-3 and later.