Note bug in handling of variables through command line parameters.

git-svn-id: svn://svn.berlios.de/openocd/trunk@2819 b42882b7-edfa-0310-969c-e2dbd0fdcd60

TODO

@@ -23,6 +23,10 @@ This section provides possible things to improve with OpenOCD's TCL support.
   - provide more directory structure for boards/targets?
   - factor configurations into layers (encapsulation and re-use)
 
+- Fix handling of variables between multiple command line "-c" and "-f"
+  parameters.  Currently variables assigned through one such parameter
+  command/script are unset before the next one is invoked.
+
 - Isolate all TCL command support: 
   - Pure C CLI implementations using --disable-builtin-tcl. 
     - Allow developers to build new dongles using OpenOCD's JTAG core.

doc/openocd.texi

@@ -670,6 +670,14 @@ each supporting a different development task.
 One might re-flash the board with a specific firmware version.
 Another might set up a particular debugging or run-time environment.
 
+@quotation Important
+At this writing (October 2009) the command line method has
+problems with how it treats variables.
+For example, after @option{-c "set VAR value"}, or doing the
+same in a script, the variable @var{VAR} will have no value
+that can be tested in a later script.
+@end quotation
+
 Here we will focus on the simpler solution:  one user config
 file, including basic configuration plus any TCL procedures
 to simplify your work.