Modified README from [5d77e30af0] to [cb012f0bd1].

   137    137   			itcl thread
   138    138   
   139    139   Kitsh Configure Options:
   140    140   	1. --enable-kit-storage={zip|mk4|auto}
   141    141   		Specify which type of storage to use with the Tclkit.  The
   142    142   		default is to auto-detect.  Auto-detection uses Mk4 if
   143    143   		available and built statically, otherwise it falls back to Zip.
          144  +
          145  +--------------------
          146  +Using the KitDLL SDK
          147  +--------------------
          148  +When you build a KitDLL, a "kitdll-sdk-<tclvers>.tar.gz" tarball is also
          149  +produced.  This tarball contains the Tcl (and Tk, if compiled) stubs libraries,
          150  +and Tcl (and Tk, if compiled) header files needed to compile and link things
          151  +against Tcl (and Tk).  It also includes "tclConfig.sh" (and "tkConfig.sh", if
          152  +Tk was compiled).
          153  +
          154  +The purpose for this tarball is to be used to build Tcl extensions or
          155  +applications that rely on Tcl/Tk using the KitDLL.
          156  +
          157  +To use it, one first must extract the tarball.  After that the environment
          158  +variable "TCLKIT_SDK_DIR" must be set to the directory that was created in
          159  +order to make most of the variables contain useful values.
          160  +
          161  +For example, to build an extension using the KitDLL SDK one would typically do
          162  +something like:
          163  +	1. Compile KitDLL (may be omitted if the KitDLL SDK is already
          164  +	   available)
          165  +		a. $ KITCREATOR_PKGS='tk itcl kitdll'
          166  +		b. $ export KITCREATOR_PKGS
          167  +		c. $ ./kitcreator
          168  +	2. Compile the Extension
          169  +		a. $ tar -xf /path/to/libtclkit-sdk-8.4.19.tar.gz
          170  +		b. $ TCLKIT_SDK_DIR="$(pwd)/libtclkit-sdk-8.4.19"
          171  +		c. $ export TCLKIT_SDK_DIR
          172  +		d. $ ./configure --with-tcl="${TCLKIT_SDK_DIR}/lib"
          173  +		e. $ make
   144    174   
   145    175   -------------------
   146    176   Method of Operation
   147    177   -------------------
   148    178   Summary:
   149    179   	1. "kitcreator" calls */build.sh
   150    180   	2. */build.sh downloads and compiles appropriate software