linux-kernel - [PATCH] Disallow gcc versions 3.{0,1}

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Date:	Fri, 2 Jan 2009 18:54:58 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	David Miller <davem@...emloft.net>, akpm@...ux-foundation.org,
	rdreier@...co.com, ian.campbell@...rix.com,
	jeremy.fitzhardinge@...rix.com, deller@....de,
	rusty@...tcorp.com.au, linux-parisc@...r.kernel.org,
	linux-kernel@...r.kernel.org, kyle@...artin.ca, randolph@...sq.org,
	sam@...nborg.org, dave@...uly1.hia.nrc.ca
Subject: [PATCH] Disallow gcc versions 3.{0,1}


* Ingo Molnar <mingo@...e.hu> wrote:

> > And it all looks more logical too, imho.
> 
> yeah, agreed, much cleaner.
> 
> The gcc3 check for gcc 3.0 and 3.1 can be pushed into gcc3 as well - not 
> sure whether you fixed that. (i fixed it in the patch i just sent - but 
> i didnt notice the gcc5 mess in gcc4.h that you fixed)

ok, i see them now:

 f9d1425: Disallow gcc versions 4.1.{0,1}
 f153b82: Sanitize gcc version header includes

agreed, much cleaner.

One small issue - i think this now allows gcc 3.0 and 3.1 again - which we 
didnt before. Dont we need the patch below - am i missing something?

	Ingo

------------------->
>From 1458f25412a838968e845ec0bc1b18db70cba7cd Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@...e.hu>
Date: Fri, 2 Jan 2009 18:53:14 +0100
Subject: [PATCH] Disallow gcc versions 3.{0,1}

GCC 3.0 and 3.1 are too old to build a working kernel.

Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 include/linux/compiler-gcc3.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/include/linux/compiler-gcc3.h b/include/linux/compiler-gcc3.h
index 2befe65..8005eff 100644
--- a/include/linux/compiler-gcc3.h
+++ b/include/linux/compiler-gcc3.h
@@ -2,6 +2,10 @@
 #error "Please don't include <linux/compiler-gcc3.h> directly, include <linux/compiler.h> instead."
 #endif
 
+#if __GNUC_MINOR__ < 2
+# error Sorry, your compiler is too old - please upgrade it.
+#endif
+
 #if __GNUC_MINOR__ >= 3
 # define __used			__attribute__((__used__))
 #else
--
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