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Re: Activating gcc 4.2 [was XCode 3.1 and 2.5]
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Re: Activating gcc 4.2 [was XCode 3.1 and 2.5]


  • Subject: Re: Activating gcc 4.2 [was XCode 3.1 and 2.5]
  • From: Dieter Oberkofler <email@hidden>
  • Date: Wed, 20 Aug 2008 19:02:03 +0200

Robert,
I'm not using XCode but only working with the command line.
In this case I guess I need to manually do what gcc_select did before automatically.
Would you know if it all about the gcc application itself or did gcc_select also change some other environment parameter?
Thank you,
D


On 18.08.2008, at 09:43, Robert Purves wrote:


Dieter Oberkofler wrote:

I'm using XCode 2.5 and build my project with gcc 4.0.1. I have now
also installed XCode 3.1 and would ike to some testing when using the
new gcc 4.0.2 but am unable to find the gcc_select utility thats needs
to change the gcc version. How would this be done?

There is no gcc 4.0.2; I assume that you mean gcc 4.2. The gcc_select tool has been discontinued.

In Xcode 3.1, choose GCC 4.2 from the pop-up at:
your_project Info > Build > Compiler Version > C/C++ Compiler Version


Or, from the command line, use gcc-4.2 to invoke the compiler, instead of gcc or cc.

Be aware of the limitation described in Xcode 3.1 Release Notes: "Note that neither gcc-4.2 nor llvm-gcc-4.2 will compile code against the 10.4u or earlier SDK, or deploy for Mac OS X 10.4 or earlier."


1) Would you know why gcc_select has been discontinued? Are there alternatives when using the command line?

IIRC, gcc_select worked by pointing the symbolic link /usr/bin/gcc at the chosen gcc binary. Perhaps Apple noticed that this was a clunky and confusing thing to do.



2) Does this mean, that only XCode 2.5 should be used when deploying against 10.3 and later?

Why would you think this? Xcode 3.1 is fully able to build against the 10.3.9 SDK. Set the compiler version pop-up to GCC System Version or equivalently to GCC 4.0.


Robert P.



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    • Re: Activating gcc 4.2 [was XCode 3.1 and 2.5]
      • From: Robert Purves <email@hidden>
References: 
 >Activating gcc 4.2 [was XCode 3.1 and 2.5] (From: Robert Purves <email@hidden>)
 >Re: Activating gcc 4.2 [was XCode 3.1 and 2.5] (From: Dieter Oberkofler <email@hidden>)
 >Re: Activating gcc 4.2 [was XCode 3.1 and 2.5] (From: Robert Purves <email@hidden>)

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