bug#3779: 23.1.50; Symbol's function definition is void: gdb-use-separate-io-buffer

 > Start gdb with M-x gdb.
 > Select from the menu Gud => GDB-MI => Separate IO.
 > 
 > Gives error message:
 > Symbol's function definition is void: gdb-use-separate-io-buffer.
 > 
 > gdb-use-separate-io-buffer is a variable, not a function.

I don't think this happens now.  gdb-use-separate-io-buffer should always be t
so I've made some changes.  This mode is replacing the one that's being
released (EMACS_23_1_RC branch) and is likely to be unstable in the near
future.  For the moment, I suggest that if you want to debug in earnest, to
use the version on the release branch.

I'm closing this report because I think it's fixed.

Nick