Errors Concerning Include Files

I'm trying to compile this code and I keep getting these errors:

Code:

In file included from /usr/include/asm/elf.h:11,
from /usr/include/linux/elf.h:6,
from code.c:73:
/usr/include/asm/system.h:302: error: expected declaration specifiers or ‘...’ before ‘u8’
/usr/include/asm/system.h:302: error: expected declaration specifiers or ‘...’ before ‘u8’
/usr/include/asm/system.h:303: error: expected declaration specifiers or ‘...’ before ‘u16’
/usr/include/asm/system.h:303: error: expected declaration specifiers or ‘...’ before ‘u16’
/usr/include/asm/system.h:304: error: expected declaration specifiers or ‘...’ before ‘u32’
/usr/include/asm/system.h:304: error: expected declaration specifiers or ‘...’ before ‘u32’
/usr/include/asm/system.h: In function ‘cmpxchg_386’:
/usr/include/asm/system.h:311: error: too many arguments to function ‘cmpxchg_386_u8’
/usr/include/asm/system.h:313: error: too many arguments to function ‘cmpxchg_386_u16’
/usr/include/asm/system.h:315: error: too many arguments to function ‘cmpxchg_386_u32’

Could anyone help me here? I'm new to linux and C.

Those seem to be unusual files to be including for someone new to C.
What happened to just stdio.h and hello world?

This is coming from code not written by me. I'm just trying to compile it.

Yeah, this isn't really a board for
"Hey, I just downloaded foo from the bar website, can you help me compile it on the baz compiler".

We're here to help you learn C and C++ by you writing your own programs, and asking questions about it here.

But you could try your luck by posting the URL of where you downloaded the program from, and perhaps we can suggest some approaches to try.