On 05/21/10 04:51 PM, William Stein wrote:
On Fri, May 21, 2010 at 8:41 AM, Dr. David Kirkby
<david.kir...@onetel.net> wrote:
The current version of zlib in Sage is rather out of date. It has patches to
generate 64-bit on OS X, fails to work 64-bit on OpenSolaris and appears to
have some dubious options used when it is configured. The -fPIC flag was
added on every platform, since it was needed on Debian Itanium.
Hi,
I've never heard of a Debian Itanium computer. We don't have one on
skynet, and there aren't many itaniums around. Such testing is
probably not feasible, unfortunately.
Sorry, not Itanium, but AMD Opteron.
There's a comment in spkg-install:
# The -fPIC is needed otherwise builing libpng fails later
# (at least on a Debian 64-bit opteron).
I don't know if that comment is still valid with the version of libpng in Sage
and the latest release of zlib.
Of course, we could add -fPIC, but it may not be necessary. It would be better
to clear out such fixes if they are not needed, as zlib is designed to sort out
the correct flags.
Likewise the patch for building 64-bit on OS X should not be needed. The
developer was puzzled why we needed to patch the code for OS X, as his main
development system was 64-bit OS X.
Dave
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