[uClibc] defining sysinfo struct in sys/sysinfo.h

[Mike Frysinger]

we currently define the sysinfo struct in the sys/sysinfo.h header file ... 
the comment there indicates binary compat issues with linux-2.4 ...

glibc simply includes the linux/sysinfo.h header file to get the struct ... is 
this something we really need worry about anymore ?  i mean, if it works for 
>=linux-2.4, is it something we need worry about ?  is <=linux-2.2 still a 
supported target ?

the issue we noticed is that some apps do:
#include <sys/sysinfo.h>
#include <linux/sysinfo.h>
which bombs because while our sysinfo.h has a #ifndef _LINUX_KERNEL_H check, 
the linux version does not so the struct gets redefined ...
-mike