diff --git a/Modules/tkappinit.c b/Modules/tkappinit.c
index 353abcc..c1f97b0 100644
--- a/Modules/tkappinit.c
+++ b/Modules/tkappinit.c
@@ -26,154 +26,154 @@
 int
 Tcl_AppInit(Tcl_Interp *interp)
 {
-	Tk_Window main_window;
-	const char *_tkinter_skip_tk_init;
+    Tk_Window main_window;
+    const char *_tkinter_skip_tk_init;
 #ifdef TKINTER_PROTECT_LOADTK
-	const char *_tkinter_tk_failed;
+    const char *_tkinter_tk_failed;
 #endif
 
 #ifdef TK_AQUA
 #ifndef MAX_PATH_LEN
 #define MAX_PATH_LEN 1024
 #endif
-	char tclLibPath[MAX_PATH_LEN], tkLibPath[MAX_PATH_LEN];
-	Tcl_Obj*	pathPtr;
+    char tclLibPath[MAX_PATH_LEN], tkLibPath[MAX_PATH_LEN];
+    Tcl_Obj*            pathPtr;
 
-        /* pre- Tcl_Init code copied from tkMacOSXAppInit.c */
-	Tk_MacOSXOpenBundleResources (interp, "com.tcltk.tcllibrary",
-       	tclLibPath, MAX_PATH_LEN, 0);
+    /* pre- Tcl_Init code copied from tkMacOSXAppInit.c */
+    Tk_MacOSXOpenBundleResources (interp, "com.tcltk.tcllibrary",
+    tclLibPath, MAX_PATH_LEN, 0);
 
-	if (tclLibPath[0] != '\0') {
-       	Tcl_SetVar(interp, "tcl_library", tclLibPath, TCL_GLOBAL_ONLY);
-		Tcl_SetVar(interp, "tclDefaultLibrary", tclLibPath, TCL_GLOBAL_ONLY);
-		Tcl_SetVar(interp, "tcl_pkgPath", tclLibPath, TCL_GLOBAL_ONLY);
-	}
+    if (tclLibPath[0] != '\0') {
+    Tcl_SetVar(interp, "tcl_library", tclLibPath, TCL_GLOBAL_ONLY);
+        Tcl_SetVar(interp, "tclDefaultLibrary", tclLibPath, TCL_GLOBAL_ONLY);
+        Tcl_SetVar(interp, "tcl_pkgPath", tclLibPath, TCL_GLOBAL_ONLY);
+    }
 
-   	if (tclLibPath[0] != '\0') {
-		Tcl_SetVar(interp, "tcl_library", tclLibPath, TCL_GLOBAL_ONLY);
-		Tcl_SetVar(interp, "tclDefaultLibrary", tclLibPath, TCL_GLOBAL_ONLY);
-		Tcl_SetVar(interp, "tcl_pkgPath", tclLibPath, TCL_GLOBAL_ONLY);
-	}
+    if (tclLibPath[0] != '\0') {
+        Tcl_SetVar(interp, "tcl_library", tclLibPath, TCL_GLOBAL_ONLY);
+        Tcl_SetVar(interp, "tclDefaultLibrary", tclLibPath, TCL_GLOBAL_ONLY);
+        Tcl_SetVar(interp, "tcl_pkgPath", tclLibPath, TCL_GLOBAL_ONLY);
+    }
 #endif
-	if (Tcl_Init (interp) == TCL_ERROR)
-		return TCL_ERROR;
+    if (Tcl_Init (interp) == TCL_ERROR)
+        return TCL_ERROR;
 
 #ifdef TK_AQUA
-        /* pre- Tk_Init code copied from tkMacOSXAppInit.c */
-	Tk_MacOSXOpenBundleResources (interp, "com.tcltk.tklibrary",
-            tkLibPath, MAX_PATH_LEN, 1);
+    /* pre- Tk_Init code copied from tkMacOSXAppInit.c */
+    Tk_MacOSXOpenBundleResources (interp, "com.tcltk.tklibrary",
+        tkLibPath, MAX_PATH_LEN, 1);
 
-	if (tclLibPath[0] != '\0') {
-		pathPtr = Tcl_NewStringObj(tclLibPath, -1);
-	} else {
-		Tcl_Obj *pathPtr = TclGetLibraryPath();
-	}
+    if (tclLibPath[0] != '\0') {
+        pathPtr = Tcl_NewStringObj(tclLibPath, -1);
+    } else {
+        Tcl_Obj *pathPtr = TclGetLibraryPath();
+    }
 
-	if (tkLibPath[0] != '\0') {
-		Tcl_Obj *objPtr;
+    if (tkLibPath[0] != '\0') {
+        Tcl_Obj *objPtr;
 
-		Tcl_SetVar(interp, "tk_library", tkLibPath, TCL_GLOBAL_ONLY);
-		objPtr = Tcl_NewStringObj(tkLibPath, -1);
-		Tcl_ListObjAppendElement(NULL, pathPtr, objPtr);
-	}
+        Tcl_SetVar(interp, "tk_library", tkLibPath, TCL_GLOBAL_ONLY);
+        objPtr = Tcl_NewStringObj(tkLibPath, -1);
+        Tcl_ListObjAppendElement(NULL, pathPtr, objPtr);
+    }
 
-	TclSetLibraryPath(pathPtr);
+    TclSetLibraryPath(pathPtr);
 #endif
 
 #ifdef WITH_XXX
-		/* Initialize modules that don't require Tk */
+        /* Initialize modules that don't require Tk */
 #endif
 
-	_tkinter_skip_tk_init =	Tcl_GetVar(interp,
-			"_tkinter_skip_tk_init", TCL_GLOBAL_ONLY);
-	if (_tkinter_skip_tk_init != NULL &&
-			strcmp(_tkinter_skip_tk_init, "1") == 0) {
-		return TCL_OK;
-	}
+    _tkinter_skip_tk_init =     Tcl_GetVar(interp,
+                    "_tkinter_skip_tk_init", TCL_GLOBAL_ONLY);
+    if (_tkinter_skip_tk_init != NULL &&
+                    strcmp(_tkinter_skip_tk_init, "1") == 0) {
+        return TCL_OK;
+    }
 
 #ifdef TKINTER_PROTECT_LOADTK
-	_tkinter_tk_failed = Tcl_GetVar(interp,
-			"_tkinter_tk_failed", TCL_GLOBAL_ONLY);
+    _tkinter_tk_failed = Tcl_GetVar(interp,
+                    "_tkinter_tk_failed", TCL_GLOBAL_ONLY);
 
-	if (tk_load_failed || (
-				_tkinter_tk_failed != NULL &&
-				strcmp(_tkinter_tk_failed, "1") == 0)) {
-		Tcl_SetResult(interp, TKINTER_LOADTK_ERRMSG, TCL_STATIC);
-		return TCL_ERROR;
-	}
+    if (tk_load_failed || (
+                            _tkinter_tk_failed != NULL &&
+                            strcmp(_tkinter_tk_failed, "1") == 0)) {
+        Tcl_SetResult(interp, TKINTER_LOADTK_ERRMSG, TCL_STATIC);
+        return TCL_ERROR;
+    }
 #endif
 
-	if (Tk_Init(interp) == TCL_ERROR) {
+    if (Tk_Init(interp) == TCL_ERROR) {
 #ifdef TKINTER_PROTECT_LOADTK
-		tk_load_failed = 1;
-		Tcl_SetVar(interp, "_tkinter_tk_failed", "1", TCL_GLOBAL_ONLY);
+        tk_load_failed = 1;
+        Tcl_SetVar(interp, "_tkinter_tk_failed", "1", TCL_GLOBAL_ONLY);
 #endif
-		return TCL_ERROR;
-	}
+        return TCL_ERROR;
+    }
 
-	main_window = Tk_MainWindow(interp);
+    main_window = Tk_MainWindow(interp);
 
 #ifdef TK_AQUA
-	TkMacOSXInitAppleEvents(interp);
-	TkMacOSXInitMenus(interp);
+    TkMacOSXInitAppleEvents(interp);
+    TkMacOSXInitMenus(interp);
 #endif
 
 #ifdef WITH_MOREBUTTONS
-	{
-		extern Tcl_CmdProc studButtonCmd;
-		extern Tcl_CmdProc triButtonCmd;
+    {
+        extern Tcl_CmdProc studButtonCmd;
+        extern Tcl_CmdProc triButtonCmd;
 
-		Tcl_CreateCommand(interp, "studbutton", studButtonCmd,
-				  (ClientData) main_window, NULL);
-		Tcl_CreateCommand(interp, "tributton", triButtonCmd,
-				  (ClientData) main_window, NULL);
-	}
+        Tcl_CreateCommand(interp, "studbutton", studButtonCmd,
+                          (ClientData) main_window, NULL);
+        Tcl_CreateCommand(interp, "tributton", triButtonCmd,
+                          (ClientData) main_window, NULL);
+    }
 #endif
 
 #ifdef WITH_PIL /* 0.2b5 and later -- not yet released as of May 14 */
-	{
-		extern void TkImaging_Init(Tcl_Interp *);
-		TkImaging_Init(interp);
-		/* XXX TkImaging_Init() doesn't have the right return type */
-		/*Tcl_StaticPackage(interp, "Imaging", TkImaging_Init, NULL);*/
-	}
+    {
+        extern void TkImaging_Init(Tcl_Interp *);
+        TkImaging_Init(interp);
+        /* XXX TkImaging_Init() doesn't have the right return type */
+        /*Tcl_StaticPackage(interp, "Imaging", TkImaging_Init, NULL);*/
+    }
 #endif
 
 #ifdef WITH_PIL_OLD /* 0.2b4 and earlier */
-	{
-		extern void TkImaging_Init(void);
-		/* XXX TkImaging_Init() doesn't have the right prototype */
-		/*Tcl_StaticPackage(interp, "Imaging", TkImaging_Init, NULL);*/
-	}
+    {
+        extern void TkImaging_Init(void);
+        /* XXX TkImaging_Init() doesn't have the right prototype */
+        /*Tcl_StaticPackage(interp, "Imaging", TkImaging_Init, NULL);*/
+    }
 #endif
 
 #ifdef WITH_TIX
-        {
-                extern int Tix_Init(Tcl_Interp *interp);
-                extern int Tix_SafeInit(Tcl_Interp *interp);
-                Tcl_StaticPackage(NULL, "Tix", Tix_Init, Tix_SafeInit);
-        }
+    {
+        extern int Tix_Init(Tcl_Interp *interp);
+        extern int Tix_SafeInit(Tcl_Interp *interp);
+        Tcl_StaticPackage(NULL, "Tix", Tix_Init, Tix_SafeInit);
+    }
 #endif
 
 #ifdef WITH_BLT
-	{
-		extern int Blt_Init(Tcl_Interp *);
-		extern int Blt_SafeInit(Tcl_Interp *);
-		Tcl_StaticPackage(NULL, "Blt", Blt_Init, Blt_SafeInit);
-	}
+    {
+        extern int Blt_Init(Tcl_Interp *);
+        extern int Blt_SafeInit(Tcl_Interp *);
+        Tcl_StaticPackage(NULL, "Blt", Blt_Init, Blt_SafeInit);
+    }
 #endif
 
 #ifdef WITH_TOGL
-	{
-		/* XXX I've heard rumors that this doesn't work */
-		extern int Togl_Init(Tcl_Interp *);
-		/* XXX Is there no Togl_SafeInit? */
-		Tcl_StaticPackage(NULL, "Togl", Togl_Init, NULL);
-	}
+    {
+        /* XXX I've heard rumors that this doesn't work */
+        extern int Togl_Init(Tcl_Interp *);
+        /* XXX Is there no Togl_SafeInit? */
+        Tcl_StaticPackage(NULL, "Togl", Togl_Init, NULL);
+    }
 #endif
 
 #ifdef WITH_XXX
 
 #endif
-	return TCL_OK;
+    return TCL_OK;
 }