Allow IPC table to be built in a simulation mode that allows the receiver to fill it

src/epics/util/feCodeGen.pl

@@ -366,6 +366,13 @@ if(defined $ENV{'SIMULATION_BUILD'})
 {
 	# When in simulation build receivers are added to the IPC file
 	# But we need to reprocess so we can load their info
+	$ipcxCnt = 0;                                                              # ===  IPCx  ===
+	$ipcxDeclDone = 0;                                                         # ===  IPCx  ===
+	$ipcxInitDone = 0;                                                         # ===  IPCx  ===
+	$ipcxBlockTags[0] = undef;
+	$ipcxParts[0][0] = undef;
+	$ipcxTagCount = 0;
+	$ipcxReset = "";
 	("CDS::IPCx::procIpc") -> ($partCnt);
 }