F22 System Wide Change: Harden all packages with position-independent code

[Jakub Jelinek]

On Mon, Jan 19, 2015 at 01:59:32PM +0100, Florian Weimer wrote:
> > It
> >is an ABI change.  IMHO very much undesirable.  Just complain to people that
> >build their packages without it where it matters.
> 
> Some core libraries use off_t or struct stat in public header files, so we
> already have the ABI problem.  Paul Eggert did some review and thinks that
> 64-bit-by-default fixes more things than it breaks:
> 
>   <https://sourceware.org/ml/libc-alpha/2014-03/msg00670.html>
> 
> In addition, <selinux/selinux.h> contains this gem:
> 
> extern int matchpathcon_filespec_add(ino_t ino, int specind, const char
> *file);

Yeah, perhaps some packages do bogus and unsafe things.  But by changing
_FILE_OFFSET_BITS, you change it silently for everything.  C++ functions
using ino_t/off_t etc. will not link anymore, ...
You'd need to bump SONAME of all the affected shared libraries, etc.

IMNSHO you can do this kind of changes in a new port, but not afterwards.

	Jakub