linux-kernel - [PATCH 2/7] kernel: introduce GCC_VERSION

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Message-ID: <48313DB4.8000102@de.ibm.com>
Date:	Mon, 19 May 2008 10:43:32 +0200
From:	Peter Oberparleiter <peter.oberparleiter@...ibm.com>
To:	linux-kernel@...r.kernel.org
CC:	ltp-coverage@...ts.sourceforge.net,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Oberparleiter <oberparleiter@...glemail.com>
Subject: [PATCH 2/7] kernel: introduce GCC_VERSION_LOWER macro

From: Peter Oberparleiter <peter.oberparleiter@...ibm.com>

GCC_VERSION_LOWER() can be used to check for gcc versions below a
certain level.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@...ibm.com>
---
 include/linux/compiler-gcc.h |    3 +++
 1 file changed, 3 insertions(+)

Index: linux-2.6.26-rc3/include/linux/compiler-gcc.h
===================================================================
--- linux-2.6.26-rc3.orig/include/linux/compiler-gcc.h
+++ linux-2.6.26-rc3/include/linux/compiler-gcc.h
@@ -6,6 +6,9 @@
  * Common definitions for all gcc versions go here.
  */
 
+#define GCC_VERSION_LOWER(major, minor) ((__GNUC__ < major) || \
+					 (__GNUC__ == major) && \
+					 (__GNUC_MINOR__ < minor))
 
 /* Optimization barrier */
 /* The "volatile" is due to gcc bugs */






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