Use do { ... } while(0) idiom to make debug() macro safer

Cleans up several -Wempty-body warnings from gcc 5.3

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/def.h b/def.h
index 1930cde..59670a9 100644
--- a/def.h
+++ b/def.h
@@ -82,9 +82,9 @@ extern int	_debugmask;
  *     3	show #include SYMBOL
  *     4-6	unused
  */
-#define debug(level,arg) { if (_debugmask & (1 << level)) warning arg; }
+#define debug(level,arg) do { if (_debugmask & (1 << level)) warning arg; } while(0)
 #else
-#define	debug(level,arg) /**/
+#define	debug(level,arg) do { /**/ } while (0)
 #endif /* DEBUG */
 
 typedef	unsigned char boolean;