The zlib package has been hacked quite a bit to generate a 64-bit shared library
on OS X. My attempts to do likewise on Solaris failed, as though I could
generate a static library, I could not do so with a shared library.
I contacted the zlib developer (Mark Alder), gave him access to 't2' and an
OpenSolaris machine of mine. He has fixed this.
The latest beta can be found at http://zlib.net/current/beta/
and will build 64-bit on OpenSolaris and Solaris 10 on SPARC.
He is very surprised that it was necessary to hack the code at all on OS X, as
he does all his development on OS X, and said it should build 64-bit by default,
and one need to add the -m32 switch to get it to build in 32-bit mode.
The zlib package needs updating for Solaris, but it would be sensible if we
could double check the OS X situation, as he is confident no hacks should be
necessary at all.
Mark's standard build machine is OS X, and all zlib development is done on OS X,
so it should be more reliable on OS X than anything else.
Does anyone know why the zlib package was hacked so much in Sage to work on OS
X? There is a completely new configure script in the Sage package, which is
specific to OS X, so the changes are not small.
Dave
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