From 4ad7fa64889d4a05bce3540ae1a6dbd87f654d9d Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Wed, 22 Aug 2012 10:16:12 -0400
Subject: [PATCH] Detect Comeau compiler version with its id

Decode decimal digits from __COMO_VERSION__ to compute the version
number components.  See documentation at:

  http://www.comeaucomputing.com/4.0/docs/userman/predefs.html
  http://sourceforge.net/p/predef/wiki/Compilers/#comeau-chttpenwikipediaorgwikicomeau_cc2b2b
---
 Modules/CMakeCXXCompilerId.cpp.in | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Modules/CMakeCXXCompilerId.cpp.in b/Modules/CMakeCXXCompilerId.cpp.in
index acffbf489..a11996d3e 100644
--- a/Modules/CMakeCXXCompilerId.cpp.in
+++ b/Modules/CMakeCXXCompilerId.cpp.in
@@ -10,6 +10,9 @@
 
 #if defined(__COMO__)
 # define COMPILER_ID "Comeau"
+  /* __COMO_VERSION__ = VRR */
+# define COMPILER_VERSION_MAJOR DEC(__COMO_VERSION__ / 100)
+# define COMPILER_VERSION_MINOR DEC(__COMO_VERSION__ % 100)
 
 #elif defined(__INTEL_COMPILER) || defined(__ICC)
 # define COMPILER_ID "Intel"