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-rw-r--r--engines/lab/engine.cpp4
-rw-r--r--engines/lab/map.cpp2
2 files changed, 3 insertions, 3 deletions
diff --git a/engines/lab/engine.cpp b/engines/lab/engine.cpp
index 01fd7b9ef0..06ac2194f5 100644
--- a/engines/lab/engine.cpp
+++ b/engines/lab/engine.cpp
@@ -71,8 +71,8 @@ void mayShowCrumbIndicatorOff();
bool Alternate = false, ispal = false, noupdatediff = false, MainDisplay = true, QuitLab = false, DoNotReset = false;
-extern char *NewFileName; /* When ProcessRoom.c decides to change the filename
- of the current picture. */
+extern const char *NewFileName; /* When ProcessRoom.c decides to change the filename
+ of the current picture. */
extern char *LAMPONMSG, *TURNLEFT, *TURNRIGHT;
extern char *GOFORWARDDIR, *NOPATH, *TAKEITEM, *USEONWHAT, *TAKEWHAT, *MOVEWHAT, *OPENWHAT, *CLOSEWHAT, *LOOKWHAT, *NOTHING, *USEMAP, *USEJOURNAL, *TURNLAMPON, *TURNLAMPOFF, *USEWHISKEY, *USEPITH, *USEHELMET;
diff --git a/engines/lab/map.cpp b/engines/lab/map.cpp
index 95c12bd5d7..77d520de16 100644
--- a/engines/lab/map.cpp
+++ b/engines/lab/map.cpp
@@ -153,7 +153,7 @@ void readImage(byte **buffer, Image **im) {
extern RoomData *Rooms;
-extern char *ViewPath;
+extern const char *ViewPath;
static Image *Map, *Room, *UpArrowRoom, *DownArrowRoom, *Bridge,
*HRoom, *VRoom, *Maze, *HugeMaze, *Path, *MapNorth,