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Precompiled headers and universal binaries

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Precompiled headers and universal binaries

Subject: Precompiled headers and universal binaries
From: Martin Storsjö <email@hidden>
Date: Thu, 6 Jul 2006 08:07:56 +0300 (EEST)

Hi,

Is precompiled headers supported when building universal binaries from the commandline for both architectures at the same time?

I've used to build precompiled headers using a command like this:

cc -c -x objective-c++-header file.h -o file.h.gch

While building universal binaries, I've added -arch ppc -arch i386 to the CFLAGS, but this gives me an error:

lipo: can't figure out the architecture type of: /var/tmp//ccM1wnO4.out

Is this scenario supported at all, or am I forced to compile the architectures separately (as xcode does) and merge them manually afterwards?

// Martin
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