Just edit Makefile you have in acerhk module and replace the line above by the following (use your kernel version instead):
KERNELVERSION=2.6.37
Make will work perfectly after that. Also, if possible, report the problem to "acerhk" developer so they can fix that. I do not have the time for that :)
I am Debian user, but I guess the problem is the same there. The "version.h" format seems to be changed, so the following line hangs in the Makefile.
KERNELVERSION= $(shell awk -F\" '/REL/ {print $$2}' $(shell grep -s -l REL $(KERNELSRC) /include/ linux/version. h $(KERNELSRC) /include/ linux/utsreleas e.h))
Just edit Makefile you have in acerhk module and replace the line above by the following (use your kernel version instead):
KERNELVERSION= 2.6.37
Make will work perfectly after that. Also, if possible, report the problem to "acerhk" developer so they can fix that. I do not have the time for that :)