Universal binary t-get_d test failure
gmp-2008b at ryandesign.com
Tue Jun 10 11:51:15 CEST 2008
Hi Torbjorn. Thanks for your response!
On Jun 10, 2008, at 04:08, Torbjorn Granlund wrote:
> Ryan Schmidt writes:
>> Hello! When building a universal binary of gmp 4.2.2, the t-get_d
>> test fails:
> "Universal" binary?
>> Looks like an endian issue. I know you don't like Apple's gcc, but
>> all the tests pass when building just for the local architecture
>> (i.e. not building a universal binary). I confirmed this fact on
>> OS X 10.4.11 with Xcode 2.4.1 and on Mac OS X 10.5.3 with Xcode
>> both on a Core 2 Duo Intel MacBook Pro.
>> Is this something that can be fixed in gmp, or should one not
>> to build a universal binary of gmp?
> If I knew what an "universal binary" were, I might be able to answer.
A Mac OS X universal binary is one which contains code for both ppc
and i386 architectures (32-bit PowerPC and Intel). There can also be
4-way universal binaries (with ppc, i386, ppc64 and x86_64
architectures) to provide optimal performance on 32-bit and 64-bit
PowerPC and Intel processors, but I'm not looking into that for gmp
at this time. More information about universal binaries is here:
>> The way I'm building gmp universal is through the MacPorts gmp port
>> with the +universal variant, which does it by configuring this way
>> (on 10.4.11):
> Aha, so you're using somebody else's variant of GMP.
The MacPorts gmp "port" isn't so much a variant of gmp as it is a
simple script for installing gmp. MacPorts is just a package manager
for Mac OS X. When I said "+universal variant" above I was referring
to a feature of MacPorts; ports can have variants to install them
with different options. The +universal variant is one provided by
MacPorts to all ports to enable the building of a universal binary,
but it can be selectively disabled for ports where it doesn't work.
> Then you need to
> report problems to the maintainer of that variant. If they conclude
> there is a bug in GMP, they should report to us.
I am a developer with the MacPorts project. The gmp port has no
maintainer at this time, but I have made several commits to the gmp
port over the past year, including updating the port to 4.2.2 last
year and enabling the +universal variant a few days ago, only to
discover now that it had this problem. Therefore I am reporting it to
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