Linker warnings with latest Xcode

Thanks for the heads-up, Karl. Those -L and -F flags seem to actually be unnecessary, at least as far as I can tell. Removed in 19ae850.

Thanks, Andy. I forgot to check the xcconfig files.

Thanks Andy Matuschak, that solved my question.

Sorry, Andy. I'm still getting the same warnings. I'm using a fresh copy of latest Sparkle source that omits the config lines you noted. It happens when building any target that builds the relaunch tool, in any config.

I'm using Xcode 3.2.2 on SL 10.6.3 (if that matters).

Very odd. I can't reproduce that. Clean build? Clear caches?

Yes, trashed the build folder and clear the PCH caches. It happens on both my work iMac and MBP at home, both fully updated. I just tried it in a brand new user account with completely default settings, and it still happened there.

Both use the iPhone SDK with Xcode 3.2.2 released a couple of weeks ago. I haven't tried it on a machine with the Mac-only version.

As a first remark about reproducibility, this kind of problems also depend on the Xcode pref settings for the build location.

Karl, what does the Framework Search Paths build setting for the relaunch tool target say? And when you updated the Sparkle source, did you quit and relaunch Xcode (that's still necessary for dependency related changes unfortunately.)

The Framework and Library Search Paths build settings for both the relaunch tool target and the whole project are blank.

My Xcode settings have always been to use a shared build products location. However, the warnings also happen when using a newly-created admin user account leaving Xcode's default settings (including building in the project directory).

Here's a step-by-step:
1. Create a new admin user. Log in as that user.
2. Open Terminal and git clone git://github.com/andymatuschak/Sparkle.git.
3. Open Xcode to go through the setup assistant. Set it to use the All-in-one layout.
4. Open Sparkle.xcodeproj and build.

I'm trying to set up another Mac, this time with the non-iPhone SDK version of Xcode 3.2.2, to see if there's any difference.

Well, there goes that idea. I erased, installed & updated Snow Leopard and Xcode 3.2.2. With all Xcode settings left at their defaults, I still get the same warnings.

I'll post something to the xcode-users list to see if anyone can offer any insight.

OK, this doesn't seem to be Sparkle-specific.

I think I've narrowed it down to the Build Active Architecture Only flag in the project's build settings. When it's checked, all is well. When it's unchecked, I get the warnings. In Sparkle, it's unchecked for all Debug & Release configs. However, in a newly-created Xcode project, it's checked in the Debug config by default, and unchecked in the Release.

If you create a new Command Line Tool (Type: Foundation) in Xcode, and immediately build the Debug config, there are no warnings. However, building the Release config generates the warnings.

Oh! So an Xcode beta problem? Thanks for doing the detective work here, Karl.

Marking this as solved.