fix gcc warning if COMPILE_TIME_LOGLEVEL is non-zero

use the old while(0) trick to avoid "empty body in an if-statement" warnings.

diff --git a/para.h b/para.h
index 3f05079740160c8aed96c1bf068696c8ca7872c3..e1b0d73f739ea5684cb61656a0553be7b8343a2c 100644 (file)
--- a/para.h
+++ b/para.h
@@ -61,37 +61,37 @@
 #if DEBUG > COMPILE_TIME_LOGLEVEL
 #define PARA_DEBUG_LOG(f,...) para_log(DEBUG, "%s: " f, __FUNCTION__, __VA_ARGS__)
 #else
 #if DEBUG > COMPILE_TIME_LOGLEVEL
 #define PARA_DEBUG_LOG(f,...) para_log(DEBUG, "%s: " f, __FUNCTION__, __VA_ARGS__)
 #else

-#define PARA_DEBUG_LOG(...)
+#define PARA_DEBUG_LOG(...) do {;} while (0)

 #endif
 
 #if INFO > COMPILE_TIME_LOGLEVEL
 #define PARA_INFO_LOG(f,...) para_log(INFO, "%s: " f, __FUNCTION__, __VA_ARGS__)
 #else
 #endif
 
 #if INFO > COMPILE_TIME_LOGLEVEL
 #define PARA_INFO_LOG(f,...) para_log(INFO, "%s: " f, __FUNCTION__, __VA_ARGS__)
 #else

-#define PARA_INFO_LOG(...)
+#define PARA_INFO_LOG(...) do {;} while (0)

 #endif
 
 #if NOTICE > COMPILE_TIME_LOGLEVEL
 #define PARA_NOTICE_LOG(f,...) para_log(NOTICE, "%s: " f, __FUNCTION__, __VA_ARGS__)
 #else
 #endif
 
 #if NOTICE > COMPILE_TIME_LOGLEVEL
 #define PARA_NOTICE_LOG(f,...) para_log(NOTICE, "%s: " f, __FUNCTION__, __VA_ARGS__)
 #else

-#define PARA_NOTICE_LOG(...)
+#define PARA_NOTICE_LOG(...) do {;} while (0)

 #endif
 
 #if WARNING > COMPILE_TIME_LOGLEVEL
 #define PARA_WARNING_LOG(f,...) para_log(WARNING, "%s: " f, __FUNCTION__, __VA_ARGS__)
 #else
 #endif
 
 #if WARNING > COMPILE_TIME_LOGLEVEL
 #define PARA_WARNING_LOG(f,...) para_log(WARNING, "%s: " f, __FUNCTION__, __VA_ARGS__)
 #else

-#define PARA_WARNING_LOG(...)
+#define PARA_WARNING_LOG(...) do {;} while (0)

 #endif
 
 #if ERROR > COMPILE_TIME_LOGLEVEL
 #define PARA_ERROR_LOG(f,...) para_log(ERROR, "%s: " f, __FUNCTION__, __VA_ARGS__)
 #else
 #endif
 
 #if ERROR > COMPILE_TIME_LOGLEVEL
 #define PARA_ERROR_LOG(f,...) para_log(ERROR, "%s: " f, __FUNCTION__, __VA_ARGS__)
 #else

-#define PARA_ERROR_LOG(...)
+#define PARA_ERROR_LOG(...) do {;} while (0)

 #endif
 
 #if CRIT > COMPILE_TIME_LOGLEVEL
 #define PARA_CRIT_LOG(f,...) para_log(CRIT, "%s: " f, __FUNCTION__, __VA_ARGS__)
 #else
 #endif
 
 #if CRIT > COMPILE_TIME_LOGLEVEL
 #define PARA_CRIT_LOG(f,...) para_log(CRIT, "%s: " f, __FUNCTION__, __VA_ARGS__)
 #else

-#define PARA_CRIT_LOG(...)
+#define PARA_CRIT_LOG(...) do {;} while (0)

 #endif
 
 #if EMERG > COMPILE_TIME_LOGLEVEL
 #endif
 
 #if EMERG > COMPILE_TIME_LOGLEVEL