You have an ugly problem.
It doesn't sound like you are missing a library, as it would tell you something to the effect of:
"Cannot stat <filename>: No such file or directory."
However, yours is different.
Basically, it sounds as though there is an error in the code of /lib/modules/2.6.4-52-smp/build/include/linux/atm.h on line 211.
I would open the file in a text editor, find line 211, and either fix the error, or comment it out altogether.
To comment the line out, simply add the following to the beginning of the line:
See if that helps.