[AUCTeX] interactive compile

[Shug Boabby]

i remember auctex used to tell me if the buffer did not compile 
correctly... now i must C-c C-l to check status. setting the 
interactive mode pops up the compile buffer... but the buffer does not 
auto-scroll! i must page down to see how all is proceeding.

the best setup for me would be seeing the compile output (so i don't 
miss warnings), but disappearing on success. on fail, the compile 
buffer should remain, and my cursor be placed near the failing part. is 
that possible? my C code setup allows for this and it is nice.