seq: added stuff to avoid warnings about nothing

src/dev/devSequencer.c

@@ -426,3 +426,5 @@ LOCAL long siGetIoInitInfo(int cmd, struct stringinRecord *pRec, IOSCANPVT *ppvt
 
     return 0;
 }
+
+pr_fun *devSequencer_nothing_dummy = nothing;

src/seq/seqCommands.c

@@ -199,3 +199,6 @@ epicsShareFunc void epicsShareAPI seqRegisterSequencerCommands(void)
         iocshRegister(&seqcarFuncDef,seqcarCallFunc);
     }
 }
+
+/* avoid nothing define but not used warnings */
+pr_fun *seqCommands_nothing_dummy = nothing;

src/seq/seqPvt.h

@@ -263,6 +263,8 @@ extern long seq_connect(SPROG *pSP);
 extern long seq_disconnect(SPROG *pSP);
 extern void ss_write_buffer(CHAN *pDB, void *pVal);
 
+/* debug/query support */
+typedef int pr_fun(const char *format,...);
 static int nothing (const char *format,...) {return 0;}
 
 #endif	/*INCLseqPvth*/

src/seq/seq_qry.c

@@ -487,3 +487,6 @@ static void seqShowAll(void)
 	if (seqProgCount == 0)
 		printf("No active state programs\n");
 }
+
+/* avoid nothing define but not used warnings */
+pr_fun *qry_nothing_dummy = nothing;