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
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