[Bf-blender-cvs] [c93fd8438c8] blender2.7: Cleanup: fix more ATTR_FALLTHROUGH warnings.

[Brecht Van Lommel]

Commit: c93fd8438c86f7df1b938a37b6034764caff0638
Author: Brecht Van Lommel
Date:   Fri Dec 21 17:23:49 2018 +0100
Branches: blender2.7
https://developer.blender.org/rBc93fd8438c86f7df1b938a37b6034764caff0638

Cleanup: fix more ATTR_FALLTHROUGH warnings.

Ref D3960.

===================================================================

M	source/blender/blenlib/BLI_compiler_attrs.h

===================================================================

diff --git a/source/blender/blenlib/BLI_compiler_attrs.h b/source/blender/blenlib/BLI_compiler_attrs.h
index 2b6baa0d67b..09c0426db92 100644
--- a/source/blender/blenlib/BLI_compiler_attrs.h
+++ b/source/blender/blenlib/BLI_compiler_attrs.h
@@ -93,10 +93,12 @@
 #endif
 
 /* Use to suppress '-Wimplicit-fallthrough' (in place of 'break'). */
-#if defined(__GNUC__) && (__GNUC__ >= 7)  /* gcc7.0+ only */
-#  define ATTR_FALLTHROUGH __attribute__((fallthrough))
-#else
-#  define ATTR_FALLTHROUGH ((void)0)
+#ifndef ATTR_FALLTHROUGH
+#  if defined(__GNUC__) && (__GNUC__ >= 7)  /* gcc7.0+ only */
+#    define ATTR_FALLTHROUGH __attribute__((fallthrough))
+#  else
+#    define ATTR_FALLTHROUGH ((void)0)
+#  endif
 #endif
 
 /* Declare the memory alignment in Bytes. */