I've attached a patch. Comments are welcome. I didn't try very hard to make
opost_block() return the maximum number of characters that can be written,
there may be some room for improvement. Even so, there is a substantial speed
increase for menuconfig (I made the Makefile link lxdialog statically for good
measure). It's almost enjoyable now :)
Bernd
begin 644 fast_opost.diff
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