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Re: compiling JNI library for PPC and Intel hardware?

Subject: Re: compiling JNI library for PPC and Intel hardware?
From: Dmitry Markman <email@hidden>
Date: Tue, 7 Nov 2006 21:55:57 -0500
Delivered-to: email@hidden
Delivered-to: email@hidden

you have to use lipo tool to glue ppc and i386 together
(see man lipo)

so you have to call gcc compiler twice
one time  for ppc (-arch ppc)
and one time for i386 (-arch i386)

hope it will help

On Nov 7, 2006, at 1:53 PM, Rob Ross wrote:

I've read technote 1295 (http://developer.apple.com/qa/qa2005/ qa1295.html) and http://developer.apple.com/java/jniuniversal.html (building a JNI Universal application), but I'm still having trouble creating a jni library that works on both PPC and Intel hardware.

I don't actually have an intel machine, so that makes debugging more difficult for me. But I have created a jni library in the JDIC project which implements the TrayIcon API for Mac OS, and it works great on my G4 machine.
However, it gives an UnsatisfiedLinkError when run on an Intel box.
My jni library is composed of 6 source files, and I am compiling them via a shell script that is invoked via an ant task. The contents of the shell script are simply:

gcc -std=gnu99 -c -arch i386 -arch ppc -isysroot /Developer/SDKs/ MacOSX10.4u.sdk -I/System/Library/Frameworks/JavaVM.framework/ Headers -I/System/Library/Frameworks/Cocoa.framework/Headers *.m

gcc -dynamiclib -o ../libtray.jnilib *.o -framework JavaVM - framework Cocoa
Am I missing something?
Thanks,
Rob Ross, Lead Software Engineer E! Networks --------------------------------------------------- "Beware of he who would deny you access to information, for in his heart he dreams himself your master." -- Commissioner Pravin Lal
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Dmitry Markman

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References:
	>compiling JNI library for PPC and Intel hardware? (From: Rob Ross <email@hidden>)

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