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Re: Reaction to Redhat/Fedora modified releases

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Nicholas Clark
January 26, 2012 03:39
Re: Reaction to Redhat/Fedora modified releases
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On Wed, Jan 25, 2012 at 11:50:04AM -0600, David Mertens wrote:
> Since nobody has raised this yet, I wonder what Apple's copy of Perl looks
> like. I know, for example, that Apple's copy of Python is considered by
> that community to be broken. I didn't even try using it myself: I prefer to
> not mess with my system perl, so I promptly installed perlbrew.

"Sane", was my understanding.

I can't speak personally, as I tend to leave it alone, and use my own, or
macports. Clearly people use it for their own projects, because:

About the biggest unfortunate issue was when Apple's XCode 4 inadvertently
broke compile XS modules on Snow Leopard. The issue being that Apple's perl
is configured as a fat binary, and to build extensions as fat binaries:

$ cd /System/Library/Perl/5.10.0/darwin-thread-multi-2level/auto/Fcntl/
$ file Fcntl.bundle 
Fcntl.bundle: Mach-O universal binary with 3 architectures
Fcntl.bundle (for architecture x86_64): Mach-O 64-bit bundle x86_64
Fcntl.bundle (for architecture i386):   Mach-O bundle i386
Fcntl.bundle (for architecture ppc7400):        Mach-O bundle ppc

Only Apple removed the ppc assembler from XCode 4, I infer because Lion
doesn't support ppc, even under emulation. Which makes attempts to build
fat binaries for it fail.

The only other problem I can remember was when an Apple security upgrade
supplied a newer IO.bundle for 1.26, which broke end user machines where
they had self-upgraded IO to 1.27, because Apple only shipped the changed
binary, not the which loads it. Which I tend to think is not
*entirely* Apple's fault here, because if one has been going behind the
back of the OS and its package manager, one isn't exactly playing fair.
When sudo says "With great power comes great responsibility" it means it.

Nicholas Clark

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