Effective append to haskell process log buffer. #647
Merged
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Make buffer read only after append
This solution makes haskell process log buffer to autoscroll if point was at the end of buffer before appending, otherwise this will append message and preserve original point position. This also behaves correctly if several windows contain log buffer, for example having one window with point at the end and another window with point somewhere else, it will scroll first buffer, and preserve point position in second.
Thanks to YongFrog's answer http://emacs.stackexchange.com/a/12346/6844.