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Re: RFC: FSF GCC, #import (and #pragma once)

From: Adam Fedor
Subject: Re: RFC: FSF GCC, #import (and #pragma once)
Date: Thu, 06 Mar 2003 20:33:06 -0700
User-agent: Mozilla/5.0 (X11; U; Linux ppc; en-US; rv:1.1) Gecko/20020905

David Ayers wrote:
Hello again...
hello Nicola,

(if I can't bark up the gdb tree, I'll try gcc ;-) ) no seriously...

I'm meaning to post this to the gcc list and just wanted to give people here (esp. Nicola) a chance to comment orvoice any reservations of it being counter productive.

It's probably useful to at least make your opinion knows. However see comments below.


-------- Original Message --------


Please excuse me for not replying to the original thread, as I'm not on the list, just lurking through the archives.

I must admit that I'm not sure I understand the recent discussion about the semantic subtleties of the #import directive. If I have understood the past development correctly, the FSF GCC Team (I'm not sure which whether this was a general consensus or a SC decision) had already identified #import as problematic and discouraged it's usage through deprecation with the intent for removal. Reality has it, that there is a large amount of active (mostly ObjC) projects that rely on this directive, with the semantics of whatever the existing implementations actually implement. These are largely projects that are expecting the semantics currently implemented by Apple's GCC fork, whatever they may be.

If Geoffery Keating is working on syncing the implementation of Apple's fork with the FSF GCC, then isn't what ever he implements "perfect" by definition? Not because it catches all edge cases that anyone may think of and that some might interpret differently than others, but because the FSF GCC and Apple's fork will implement the *same* semantics, what ever they may be.

I think it was Geoffery that suggested removing import in the first place. Although this was part of a list of alternatives, non of which he considered appealing...

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