Index: kitsh/buildsrc/kitsh-0.0/kitInit.c
==================================================================
--- kitsh/buildsrc/kitsh-0.0/kitInit.c
+++ kitsh/buildsrc/kitsh-0.0/kitInit.c
@@ -37,13 +37,16 @@
 Tcl_AppInitProc	Itcl_Init;
 #endif
 #ifdef KIT_INCLUDES_MK4TCL
 Tcl_AppInitProc	Mk4tcl_Init;
 #endif
-Tcl_AppInitProc Vfs_Init, Rechan_Init, Zlib_Init;
+Tcl_AppInitProc Vfs_Init, Rechan_Init;
 #if 10 * TCL_MAJOR_VERSION + TCL_MINOR_VERSION < 85
 Tcl_AppInitProc	Pwb_Init;
+#endif
+#if 10 * TCL_MAJOR_VERSION + TCL_MINOR_VERSION < 86
+Tcl_AppInitProc Zlib_Init;
 #endif
 #ifdef TCL_THREADS
 Tcl_AppInitProc	Thread_Init;
 #endif
 #ifdef _WIN32
@@ -170,11 +173,13 @@
 #if 10 * TCL_MAJOR_VERSION + TCL_MINOR_VERSION < 85
 	Tcl_StaticPackage(0, "pwb", Pwb_Init, NULL);
 #endif 
 	Tcl_StaticPackage(0, "rechan", Rechan_Init, NULL);
 	Tcl_StaticPackage(0, "vfs", Vfs_Init, NULL);
+#if 10 * TCL_MAJOR_VERSION + TCL_MINOR_VERSION < 86
 	Tcl_StaticPackage(0, "zlib", Zlib_Init, NULL);
+#endif
 #ifdef TCL_THREADS
 	Tcl_StaticPackage(0, "Thread", Thread_Init, NULL);
 #endif
 #ifdef _WIN32
 	Tcl_StaticPackage(0, "dde", Dde_Init, NULL);

Index: kitsh/buildsrc/kitsh-0.0/zlib.c
==================================================================
--- kitsh/buildsrc/kitsh-0.0/zlib.c
+++ kitsh/buildsrc/kitsh-0.0/zlib.c
@@ -2,12 +2,13 @@
  * March 2003 - placed in the public domain by the author.
  *
  * Interface to the "zlib" compression library
  */
 
-#include "zlib.h"
 #include <tcl.h>
+#if 10 * TCL_MAJOR_VERSION + TCL_MINOR_VERSION < 86
+#include "zlib.h"
 
 typedef struct {
   z_stream stream;
   Tcl_Obj *indata;
 } zlibstream;
@@ -207,5 +208,6 @@
 int Zlib_Init(Tcl_Interp *interp)
 {
     Tcl_CreateObjCommand(interp, "zlib", ZlibCmd, 0, 0);
     return Tcl_PkgProvide( interp, "zlib", "1.1");
 }
+#endif /* Tcl version less than 8.6 */