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Re: Will Java SE6 have 32-bit version?



Fabrizio Giudici wrote:

On Jan 28, 2008, at 6:36 PM, Pratik Solanki wrote:

On Jan 27, 2008, at 8:46 PM, bady.yu_gmail.com wrote:

Current Java SE6 preview is only available for Intel 64-bit machine.
Will Java SE6 official release have 32-bit version? That is, we
can call our 32-bit C/C++ application codes by JNI from Java. But
if only 64-bit is available, we must switch our application codes
from 32-bit to 64-bit.

I think, in general, it would be a really good idea for everyone to convert their JNI libraries to be 3-way Universal. You should start passing "-arch ppc -arch x86_64 -arch i386" to your build commands. Java 5 already supports Intel 64-bit, so you can start testing it on Leopard right away.

... if you have a 64 bit processor. People whose latest buy has been one of the first generations of the MBP (but not only) are prevented from doing it, in spite of having hardware which is not two years old yet. Doesn't sound good to me.

You should be able to *build* for x86_64 on an x86 or ppc arch system using GCC's cross-compilation features. That doesn't help with *testing*, however. You can test the 32-bit build on a 64-bit Intel CPU, but not vice-versa. At least Apple transitioned their product line to 64-bit chips across the board in fairly short order (which is probably cold comfort to the early adopters). Being an early adopter can really cost a lot.
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