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This is what I see on my Mac:

$ uname -a
Darwin be-2.local 10.3.0 Darwin Kernel Version 10.3.0: Fri Feb 26 11:58:09 PST 2010; root:xnu-1504.3.12~1/RELEASE_I386 i386

I have Mac OS X 10.6.3. Why the kernel is of version 10.3? And how can I upgrade it? Thanks.

ps. I need to upgrade it because one third-party software that I'm installing (Valgrind) says to me:

...
checking for the kernel version... unsupported (10.3.0) 
configure: error: Valgrind works on Darwin 9.x (Mac OS X 10.5)
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4 Answers 4

Reset to default
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  • Darwin 8.x corresponded to MacOS X 10.4.x (Tiger).
  • Darwin 9.x corresponded to MacOS X 10.5.x (Leopard).
  • Darwin 10.x corresponds to MacOS X 10.6.x (Snow Leopard).
  • Darwin 11.x corresponds to MacOS X 10.7.x (Lion).
  • Darwin 12.x corresponds to MacOS X 10.8.x (Mountain Lion).
  • Darwin 13.x corresponds to MacOS X 10.9.x (Mavericks).

For other code names, versions, release dates, etc, consult Wikipedia on Mac OS X or other similar resources.

In 2010, to get valgrind to work, you would have had to downgrade to Leopard.

(I tried getting the patch to valgrind to work - published around August 2009 - but was not successful. 'Twas a nuisance.)

In September 2014, valgrind 3.10.0 compiles out of the box for Mac OS X 10.9 (Mavericks).

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Because the Darwin version number is different from the OS. Darwin 9 is Leopard, 10 is Snow Leopard.

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It's because the Darwin kernel versions are independent of the Mac OS/X version. Check the Wikipedia article: http://en.wikipedia.org/wiki/Darwin_%28operating_system%29

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The underlying infrastructure is version 10.3.0. Everything on top of it (Quartz, Cocoa, Core*, etc.) is 10.6.3. There is nothing wrong with this situation.

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  • How can I upgrade to Darwin 10.5 or higher?
    – yegor256
    Commented May 22, 2010 at 6:31
  • @Vincenzo, Dawrin 10.5 will probably be in Mac OS X 10.6.5. You will have to wait for a couple more point releases.
    – Chris Johnsen
    Commented May 22, 2010 at 6:40

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