Buildworld failure in libmagic on old system

[Kris Kennaway]

On Sat, Mar 10, 2007 at 11:02:01PM +0000, Gavin Atkinson wrote:
> 
> Hi all,
> 
> I've been seeing a build failure on sparc64 for a while on one of my
> machines, last built Thu Dec  8 13:52:22 GMT 2005 (yes, I know it's
> old!), where it looks like there's some issue with which version of libc
> gets used.  I've been trying to upgrade this every two months or so
> since then, without success, so it's time to report it!
> 
> Full compile log at http://www-users.york.ac.uk/~ga9/build-20070309.txt
> 
> I suspect a libc issue because of the following:
> 
> leeloo# pwd
> /usr/obj/usr/src/lib/libmagic
> leeloo# ./mkmagic magic
> Segmentation fault (core dumped)
> leeloo# echo $LD_PRELOAD
> LD_PRELOAD: Undefined variable.
> leeloo# setenv LD_PRELOAD /usr/obj/usr/src/lib/libc/libc.so.7
> leeloo# echo $LD_PRELOAD
> /usr/obj/usr/src/lib/libc/libc.so.7
> leeloo# ./mkmagic magic
> leeloo#
> 
> Is this something which should be fixed in the source?  I'm sure setting
> the OSRELDATE=0 hack to tell it the world that is installed is "really
> old" may well fix it, and I'm happy to do that, I'm just wondering if
> something is not being rebuilt somewhere where it should be?
> 
> There is one Google hit with a similar problem -
> http://lists.freebsd.org/pipermail/freebsd-sparc64/2006-June/004159.html
> - which is a tinderbox failure in June 2006.  I'm pretty sure I first
> saw the problem before that (although I could be wrong).  I also can't
> seem to see any commit that would have got the tinderbox working.

There is a malloc error in that code which causes it to segfault when
MALLOC_OPTIONS=AJ.  Not doing this is the workaround, but someone
should track down and fix it.

Kris