[cogl/cogl-1.18] version: Add COGL_VERSION_1_18 define

[Robert Bragg <rbragg src gnome org>]

commit 3083ff6877c7d943e0746becf0fccdf04ed1e05b
Author: Robert Bragg <robert linux intel com>
Date:   Wed Jan 1 19:33:13 2014 +0000

    version: Add COGL_VERSION_1_18 define

 cogl/cogl-version.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/cogl/cogl-version.h b/cogl/cogl-version.h
index c2cce4b..cdcf888 100644
--- a/cogl/cogl-version.h
+++ b/cogl/cogl-version.h
@@ -305,6 +305,16 @@
  */
 #define COGL_VERSION_1_16 (COGL_VERSION_ENCODE (1, 16, 0))
 
+/**
+ * COGL_VERSION_1_18:
+ *
+ * A macro that evaluates to the 1.18 version of Cogl, in a format
+ * that can be used by the C pre-processor.
+ *
+ * Since: 1.18
+ */
+#define COGL_VERSION_1_18 (COGL_VERSION_ENCODE (1, 18, 0))
+
 /* evaluates to the current stable version; for development cycles,
  * this means the next stable target
  */