MinGW package guidelines were approved recently: http://fedoraproject.org/wiki/Packaging/MinGW MinGW packages may contain *.la (libtool linker scripts), contrary to the normal practice for Fedora packages. This is because they are required for libtool to be able to link Windows binaries. rpmlint gives a rather unexpected error here. As an example: mingw32-libjpeg.noarch: E: script-without-shebang /usr/i686-pc-mingw32/sys-root/mingw/lib/libjpeg.la (bug 467401). (Libtool also installs these files as 0755 - whether this is required or not I am not sure, it may be a bug in libtool or there may be some reason behind it).
This bug appears to have been reported against 'rawhide' during the Fedora 10 development cycle. Changing version to '10'. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
Closing - rpmlint no longer reports this as a problem.