bugfix: fixed compile problem due to empty structs

this occured only on some platforms/compilers. thanks to Dražen Kačar
for the fix

Signed-off-by: Rainer Gerhards <rgerhards@adiscon.com>

4 files changed, 4 insertions, 0 deletions

diff --git a/runtime/datetime.h b/runtime/datetime.h
index 82bd415b..70bbf416 100644
--- a/runtime/datetime.h
+++ b/runtime/datetime.h
@@ -28,6 +28,7 @@
 
 /* the datetime object */
 typedef struct datetime_s {
+    	char dummy;
 } datetime_t;
 
 
diff --git a/runtime/errmsg.h b/runtime/errmsg.h
index 799954fb..ac7018b3 100644
--- a/runtime/errmsg.h
+++ b/runtime/errmsg.h
@@ -30,6 +30,7 @@
 
 /* the errmsg object */
 typedef struct errmsg_s {
+    	char dummy;
 } errmsg_t;
 
 
diff --git a/runtime/expr.h b/runtime/expr.h
index 974b71ec..1afe1a1f 100644
--- a/runtime/expr.h
+++ b/runtime/expr.h
@@ -30,6 +30,7 @@
 
 /* a node inside an expression tree */
 typedef struct exprNode_s {
+    	char dummy;
 } exprNode_t;
 
 
diff --git a/runtime/modules.h b/runtime/modules.h
index 49586e8d..df1afbc3 100644
--- a/runtime/modules.h
+++ b/runtime/modules.h
@@ -119,6 +119,7 @@ struct modInfo_s {
 			rsRetVal (*parseSelectorAct)(uchar**, void**,omodStringRequest_t**);
 		} om;
 		struct { /* data for library modules */
+		    	char dummy;
 		} lm;
 		struct { /* data for parser modules */
 			rsRetVal (*parse)(msg_t*);