Why does adding /usr/lib32 to LD_LIBRARY_PATH break 64-bit
doconnor at gsoft.com.au
Mon Oct 27 16:59:44 PDT 2008
On Tuesday 28 October 2008 01:31:16 M. Warner Losh wrote:
> In message: <200810271411.m9REB6te015188 at lurza.secnetix.de>
> Oliver Fromme <olli at lurza.secnetix.de> writes:
> : 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.
> Yes. I have a bunch of printer drivers that I've used that link in
> linux shared libraries... They are in ports...
The problem is really the Linux linker - it will find a FreeBSD library and
try and use it ahead of a Linux one later in the search path - this prevents
stuff working :)
I have this exact problem with libfontconfig and Xilinx ISE.
Perhaps instead of ignore, use last.. But then it doesn't really matter for
the FreeBSD linker - I imagine I would have to convince Linux folks it's a
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
-- Andrew Tanenbaum
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