diff --git a/seriell/Makefile b/seriell/Makefile
index 4a0e201..7ff4fa2 100644
--- a/seriell/Makefile
+++ b/seriell/Makefile
@@ -16,26 +16,32 @@ all: $(BIN_NAME)
 
 
 $(BIN_NAME): main.o config.o input.o process.o write.o
-	$(LD) $(DEBUG) -L/usr/lib/pgsql -lpq $(LDFLAS) $(BIN_NAME) main.o input.o process.o write.o config.o
+	$(LD) $(DEBUG) $(NOLOG) -L/usr/lib/pgsql -lpq $(LDFLAS) $(BIN_NAME) main.o input.o process.o write.o config.o
 
 main.o: main.c main.h definitions.h config.h input.h
-	$(CC) $(DEBUG) -c main.c
+	$(CC) $(DEBUG) $(NOLOG) $(CFLAGS) main.c
 
 config.o: config.c config.h definitions.h
-	$(CC) $(DEBUG) -c config.c
+	$(CC) $(DEBUG) $(NOLOG) $(CFLAGS) config.c
 
 input.o: input.c input.h main.h config.h definitions.h process.h
-	$(CC) $(DEBUG) -c input.c
+	$(CC) $(DEBUG) $(NOLOG) $(CFLAGS) input.c
 
 process.o: process.c process.h main.h config.h definitions.h write.h
-	$(CC) $(DEBUG) -c process.c
+	$(CC) $(DEBUG) $(NOLOG) $(CFLAGS) process.c
 
 write.o: write.c write.h main.h definitions.h
-	$(CC) $(DEBUG) -I/usr/include/postgresql -o write.o -c write.c
+	$(CC) $(DEBUG) $(NOLOG) -I/usr/include/postgresql $(CFLAGS) write.c
 
+# Programm mit debug-ausgabe bauen
 debug: 
 	$(MAKE) all DEBUG=-DDEBUG
 
+# Programm ohne Log-ausgabe bauen
+nolog:
+	$(MAKE) all NOLOG=-DNO_LOGING
+
+# Aufräumnen (alle Object-Files löschen)
 cleanup:
 	echo "Räume auf...entferne:"
 	echo "  " *.o
diff --git a/seriell/config.c b/seriell/config.c
index 723826d..471949d 100644
--- a/seriell/config.c
+++ b/seriell/config.c
@@ -47,10 +47,12 @@ static int flag_handler(int *, int , const char *);
 static const struct config_keyword keywords[] = {
   /* keyword		handler  	 	variable address		default */
   {"interface",		read_str,  		&(global_opts.device),		DEFAULT_SERIAL_PORT},
+  #ifndef NO_LOGING
   {"log_data",		read_log_data_flag, 	&(global_opts.flags), 		"no"},
   {"log_error",		read_log_error_flag, 	&(global_opts.flags), 		"no"},
   {"data_file",		read_str,  		&(global_opts.data_log), 	DEFAULT_DATA_FILE},
   {"error_file",	read_str, 		&(global_opts.error_log), 	DEFAULT_ERROR_FILE},
+  #endif
   {"foreground",	read_foreground_flag, 	&(global_opts.flags), 		"no"},
   {"verbose",		read_verbose_flag, 	&(global_opts.flags), 		"no"},
   {"pg_host",		read_str,	 	&(global_opts.pg_host), 	DEFAULT_PG_HOST},
@@ -74,6 +76,7 @@ static int read_str(const char *line, void *arg){
 /* Die 4 Funktionen reichen jeweils nur die Daten an den 
  * flag_handler durch und teilen diesem noch das Flag
  * mit, was er setzen soll (oder nicht) */
+#ifndef NO_LOGING
 static read_log_data_flag(const char *line, void *arg){
   return flag_handler(arg, LOG_DATA_FLAG, line);
 }
@@ -81,6 +84,7 @@ static read_log_data_flag(const char *line, void *arg){
 static read_log_error_flag(const char *line, void *arg){
   return flag_handler(arg, LOG_ERROR_FLAG, line);
 }
+#endif
 
 static read_foreground_flag(const char *line, void *arg){
   return flag_handler(arg, FOREGROUND_FLAG, line);
diff --git a/seriell/definitions.h b/seriell/definitions.h
index b0e55ee..159b51d 100644
--- a/seriell/definitions.h
+++ b/seriell/definitions.h
@@ -60,10 +60,12 @@
 
 
 /* Parameter-Flags ----------------------------------------------------- */
-#define LOG_ERROR_FLAG 	0x01
-#define LOG_DATA_FLAG  	0x02
-#define FOREGROUND_FLAG	0x04
-#define VERBOSE_FLAG	0x08
+#define FOREGROUND_FLAG		0x01
+#define VERBOSE_FLAG		0x02
+#ifndef NO_LOGING
+  #define LOG_ERROR_FLAG 	0x04
+  #define LOG_DATA_FLAG  	0x08
+#endif
 
 
 /* Puffergrößen -------------------------------------------------------- */
diff --git a/seriell/main.c b/seriell/main.c
index 51337ea..916005a 100644
--- a/seriell/main.c
+++ b/seriell/main.c
@@ -163,10 +163,12 @@ static void background(){
 static void merge_options(w_opts *priv){
   if((*priv).device != NULL)
     global_opts.device = (*priv).device;
+  #ifndef NO_LOGING
   if((*priv).data_log != NULL)
     global_opts.data_log = (*priv).data_log;
   if((*priv).error_log != NULL)
     global_opts.error_log = (*priv).error_log;
+  #endif
   global_opts.flags |= (*priv).flags;
 }
 
diff --git a/seriell/write.c b/seriell/write.c
index 1ca8cec..fd4d306 100644
--- a/seriell/write.c
+++ b/seriell/write.c
@@ -126,8 +126,10 @@ static int pg_connect(){
     }
     if(PQstatus(connection) != CONNECTION_OK){
       DEBUGOUT2("\nFehler beim Aufbau der Datenbankverbindung\n%s\n", PQerrorMessage(connection));
+      #ifndef NO_LOGING
       snprintf(get_error_buffer(), ERR_BUFFERSIZE, "Fehler beim Aufbau der Datenbankverbindung: %s", PQerrorMessage(connection));
       log_error(get_error_buffer());
+      #endif
       return 0;
     }
     DEBUGOUT1("\nDatenbankverbindung erfolgreich hergestellt\n");
@@ -141,8 +143,10 @@ static void pg_insert(char *query){
     res = PQexec(connection, query);
     if(!res || PQresultStatus(res) != PGRES_COMMAND_OK){
       DEBUGOUT2("Fehler beim INSERT: %s\n", query);
+      #ifndef NO_LOGING
       snprintf(get_error_buffer(), ERR_BUFFERSIZE, "Fehler beim INSERT: %s", query);
       log_error(get_error_buffer());
+      #endif
     } else {
       DEBUGOUT2("Query: '%s' ausgeführt\n", query);
     }