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Supporting Panther with Xcode 2.1

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Supporting Panther with Xcode 2.1

Subject: Supporting Panther with Xcode 2.1
From: "Frederik Slijkerman" <email@hidden>
Date: Thu, 3 Nov 2005 16:17:54 +0100

Hi,

I have been trying to compile one of our AU plugins (a filter effect) with Xcode 2.1 on a Tiger system, but I haven't been able to get the compiled plugin working on a Panther system. It does work fine on Tiger.

I've tried compiling against both the Tiger ("Current OS") SDK and the 1.3.9 SDK but the result is the same. In Panther, the plugin loads correctly and starts up, shows its interface, but it doesn't do anything audio-wise (being an effect it just passes the signal through). When you change a couple of parameters the whole CoreAudio system crashes.

The plugin uses the AUMIDIEffectBase class and related classes from the CoreAudio 1.4.2 SDK. I've tried installing the earlier 1.3.6 CoreAudio SDK but it turns out you can't do that on a Tiger system. I did have to fix a couple of compiler errors when compiling against the 1.3.9 OS SDK because some declarations seem to missing from the headers.

Does this sound familiar to anyone? How can I build a plugin with Xcode 2.1 and Tiger that works on a Panther system?

Thanks!
Frederik Slijkerman

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