I have been working for the better part of a year on moving Fedora off of libpng's obsolete 1.2.x release series and onto the current 1.5.x series. We are practically there now, and I had hoped to drop libpng 1.2 from the distribution before the F18 branch. However, I find that redhat-lsb-desktop still has a dependency on 1.2, and it's not even because that package contains any PNG-using code; rather, there's a manually inserted version-specific dependency in the specfile: %ifarch %{ix86} Requires: libpng12.so.0 %endif %ifarch x86_64 Requires: libpng12.so.0()(64bit) %endif This is unlike that specfile's treatment of any other library it requires. I have been told, at https://bugzilla.redhat.com/show_bug.cgi?id=835777#c8 that the LSB standard requires libpng 1.2, but without any supporting evidence. I looked at the underlying ISO documents and don't see any requirement for libpng at all, let alone 1.2 in particular. I am doubtful that every other Linux distro is maintaining this long-obsolete libpng version, too. I would like to know how to proceed here. "You should keep libpng 1.2 around indefinitely, on the basis of no evidence" is not an answer I intend to accept. regards, tom lane -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel