Index: command.c
===================================================================
--- command.c	(revision 3142)
+++ command.c	(revision 3143)
@@ -76,7 +76,7 @@
 
 %end-doc */
 
-static int CommandHelp(int argc, char **argv, Coord x, Coord y)
+static int CommandHelp(int argc, const char **argv, Coord x, Coord y)
 {
 	Message(PCB_MSG_DEFAULT, "following commands are supported:\n"
 					"  Command()   execute an action command (too numerous to list)\n"
@@ -110,9 +110,9 @@
 
 %end-doc */
 
-static int CommandLoadLayout(int argc, char **argv, Coord x, Coord y)
+static int CommandLoadLayout(int argc, const char **argv, Coord x, Coord y)
 {
-	char *filename, *format = NULL;
+	const char *filename, *format = NULL;
 
 	switch (argc) {
 	case 2:
@@ -146,9 +146,9 @@
 
 %end-doc */
 
-static int CommandLoadElementToBuffer(int argc, char **argv, Coord x, Coord y)
+static int CommandLoadElementToBuffer(int argc, const char **argv, Coord x, Coord y)
 {
-	char *filename;
+	const char *filename;
 
 	switch (argc) {
 	case 1:											/* filename is passed in commandline */
@@ -180,9 +180,9 @@
 
 %end-doc */
 
-static int CommandLoadLayoutToBuffer(int argc, char **argv, Coord x, Coord y)
+static int CommandLoadLayoutToBuffer(int argc, const char **argv, Coord x, Coord y)
 {
-	char *filename, *format = NULL;
+	const char *filename, *format = NULL;
 
 	switch (argc) {
 	case 2:
@@ -215,7 +215,7 @@
 
 %end-doc */
 
-static int CommandQuit(int argc, char **argv, Coord x, Coord y)
+static int CommandQuit(int argc, const char **argv, Coord x, Coord y)
 {
 	if (!PCB->Changed || gui->close_confirm_dialog() == HID_CLOSE_CONFIRM_OK)
 		QuitApplication();
@@ -235,7 +235,7 @@
 
 %end-doc */
 
-static int CommandReallyQuit(int argc, char **argv, Coord x, Coord y)
+static int CommandReallyQuit(int argc, const char **argv, Coord x, Coord y)
 {
 	QuitApplication();
 	return 0;
@@ -261,9 +261,9 @@
 
 %end-doc */
 
-static int CommandLoadNetlist(int argc, char **argv, Coord x, Coord y)
+static int CommandLoadNetlist(int argc, const char **argv, Coord x, Coord y)
 {
-	char *filename;
+	const char *filename;
 
 	switch (argc) {
 	case 1:											/* filename is passed in commandline */
@@ -311,7 +311,7 @@
 
 %end-doc */
 
-static int CommandSaveLayout(int argc, char **argv, Coord x, Coord y)
+static int CommandSaveLayout(int argc, const char **argv, Coord x, Coord y)
 {
 	switch (argc) {
 	case 0:
@@ -355,7 +355,7 @@
 
 %end-doc */
 
-static int CommandSaveLayoutAndQuit(int argc, char **argv, Coord x, Coord y)
+static int CommandSaveLayoutAndQuit(int argc, const char **argv, Coord x, Coord y)
 {
 	if (!CommandSaveLayout(argc, argv, x, y))
 		return CommandQuit(0, 0, 0, 0);