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Date:      Mon, 27 Oct 2008 15:11:06 +0100 (CET)
From:      Oliver Fromme <olli@lurza.secnetix.de>
To:        freebsd-hackers@FreeBSD.ORG, doconnor@gsoft.com.au, Alexander Sack <pisymbol@gmail.com>, freebsd-questions@FreeBSD.ORG, Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
Subject:   Re: Why does adding /usr/lib32 to LD_LIBRARY_PATH break 64-bit ?binaries?
Message-ID:  <200810271411.m9REB6te015188@lurza.secnetix.de>
In-Reply-To: <freebsd-hackers.79409.1224892331.200810250958.15130.doconnor@gsoft.com.au>

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Daniel O'Connor wrote:
 > On Friday 24 October 2008 23:20:59 Peter Jeremy wrote:
 > > > this will make system trying to bind 32-bit libs to 64-bit program. it
 > > > can't work
 > > 
 > > rtld shouldn't attempt to bind 32-bit libs to 64-bit programs.
 > 
 > The same problem happens with the Linux run time linker - it merrily tries to 
 > link FreeBSD libraries to Linux binaries with predictable results..

You *can* link Linux libraries with FreeBSD binaries (and
vice versa), if the library does not perform any syscalls,
e.g. it is a pure computation library or similar.

 > That said it would be really nice if it ignored incompatible libraries :)

No.  Please don't put such pseudo-cleverness into rtld.
It wouldn't be an improvement, in fact it might break some
working configurations.

Best regards
   Oliver

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