On May 30, 2008, at 11:16 AM, Fritz Anderson wrote:
On 30 May 2008, at 4:17 AM, Steven Hamilton wrote:
Also, any warnings or errors I get in xcode appear twice in the
bubbles. Anyone know why that is?
By default, new Xcode projects are set to the "Release"
configuration (because all software is ready to release when you
begin coding it. That's sarcasm.).
There's a pop-up labeled "default configuration" in the Configurations
tab of the project info window. As I'm sure you know, this sets the
configuration used when building your project via xcodebuild without
any configuration specified, e.g. when you just cd to a directory
containing an Xcode project and type "xcodebuild" in Terminal.
If it does not also set the configuration users saw when they first
opened a project, one might argue that it's broken, because that's
what users who don't use xcodebuild from the command line may
interpret "default" to mean.
In that configuration, Xcode compiles and links the application
twice, once for Intel and once for PowerPC. Two compilations, same
error, two reports of the error.
Keep in mind as well that the Release configuration is not "special" -
it just has the appropriate build settings to build two-way Universal.
One place where this is actually really useful is when building four-
way Universal. You may get different errors and warnings when
building for PowerPC 32-bit than when building for Intel 64-bit; for
one thing, the latter has differently-sized "int" and "long" types.
Similarly, if you're building for PowerPC with a deployment target of
10.3, but for Intel with a deployment target of 10.4, you will get
deprecation warnings for the latter architecture that don't apply to
the former.
-- Chris
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