Something

johu@johu-laptop:/usr/lib/gcc/i486-linux-gnu/4.1.2/include$ ls -l
total 196
drwxr-xr-x 2 root root  4096 2006-10-25 17:05 asm
-rw-r--r-- 1 root root 40303 2006-10-08 17:36 emmintrin.h
-rw-r--r-- 1 root root  5364 2006-10-08 17:36 float.h
-rw-r--r-- 1 root root  1432 2006-10-08 17:36 iso646.h
-rw-r--r-- 1 root root  3470 2006-10-08 17:36 limits.h
drwxr-xr-x 2 root root  4096 2006-10-25 17:05 linux
-rw-r--r-- 1 root root  4918 2006-10-08 17:36 mm3dnow.h
-rw-r--r-- 1 root root 25898 2006-10-08 17:36 mmintrin.h
-rw-r--r-- 1 root root  1907 2006-10-08 17:36 mm_malloc.h
-rw-r--r-- 1 root root  4035 2006-10-08 17:36 pmmintrin.h
-rw-r--r-- 1 root root   750 2006-10-08 17:36 README
-rw-r--r-- 1 root root  4317 2006-10-08 17:36 stdarg.h
-rw-r--r-- 1 root root  1604 2006-10-08 17:36 stdbool.h
-rw-r--r-- 1 root root 12695 2006-10-08 17:36 stddef.h
-rw-r--r-- 1 root root   330 2006-10-08 17:36 syslimits.h
-rw-r--r-- 1 root root  9096 2006-10-08 17:36 unwind.h
-rw-r--r-- 1 root root   139 2006-10-08 17:36 varargs.h
-rw-r--r-- 1 root root 35843 2006-10-08 17:36 xmmintrin.h