Re: [PATCH] On linux require the libc to have large file support

[Felix Janda <felix.janda@posteo.de>]

Vladimir 'φ-coder/phcoder' Serbinenko wrote:
> On 18.01.2015 19:18, Felix Janda wrote:
> > Felix Janda wrote:
> >> Andrei Borzenkov wrote:
> >>> В Sat, 17 Jan 2015 14:57:07 +0100
> >>> Felix Janda <felix.janda@posteo.de> пишет:
> >>>
> >>>> With this, support code in grub-core/osdep/unix/hostdisk.c
> >>>> for old glibc releases could be removed.
> >>>> ---
> >>>> This patch tries to address the issues raised in
> >>>>
> >>>> http://lists.gnu.org/archive/html/grub-devel/2014-12/msg00030.html
> >>>> ---
> >>>>  INSTALL                         |  1 +
> >>>>  configure.ac                    |  5 +++++
> >>>>  grub-core/osdep/unix/hostdisk.c | 25 -------------------------
> >>>>  3 files changed, 6 insertions(+), 25 deletions(-)
> >>>>
> >>>> diff --git a/INSTALL b/INSTALL
> >>>> index b67cd7f..ac7c2aa 100644
> >>>> --- a/INSTALL
> >>>> +++ b/INSTALL
> >>>> @@ -39,6 +39,7 @@ configuring the GRUB.
> >>>>  On GNU/Linux, you also need:
> >>>>  
> >>>>  * libdevmapper 1.02.34 or later (recommended)
> >>>> +* a libc with large file support (e.g. glibc 2.1 or later)
> >>>>  
> >>>>  For optional grub-emu features, you need:
> >>>>  
> >>>> diff --git a/configure.ac b/configure.ac
> >>>> index 31d2b0b..bdaebb8 100644
> >>>> --- a/configure.ac
> >>>> +++ b/configure.ac
> >>>> @@ -346,6 +346,11 @@ AC_GNU_SOURCE
> >>>>  AM_GNU_GETTEXT([external])
> >>>>  AC_SYS_LARGEFILE
> >>>>  
> >>>> +if test x"$host_kernel" = xlinux ; then
> >>>
> >>> I wonder if we should do it unconditionally. Large files support is
> >>> really presumed by current code.
> >>>
> >>> Not for now, but something to keep in mind for next version.
> >>
> >> Yes, the test is not ideal. But enabling it for everything would
> >> break cygwin. (There sizeof(off_t)=4 and the windows hostdisk.c is
> >> used.)
> > 
> I've put all windows flavours and AROS on whitelist. Everything else
> requires long-filesystem libc. Thank you for the patch.
> Actually there may be a way to make mingw have long off_t, perhaps some
> define. If so, it would be better to add it and keep only AROS on whitelist.

Thanks for fixing up the patch and committing!

Felix