kpcr.c : non-void function 'find_windows_version' should return a value
private.h : add prototype for get_memory_layout to fix implicit declaration in accessors.c
win-guid.c : fix incorrect format string; use %PRIx32 instead.
private.h : add function prototype for linux_pid_to_pgd to fix implicit declaration warning from its use in memory.c
xen.c : use PRIx64 format string specifier rather than %llx
xen.c : remove extra format specifier for which a corresponding parameter was not present.
xen.c : fix signedness warning; xs_directory takes a pointer to unsigned int as its size parameter
core.c : find_cr3 should return a default in the error case
vmifs.c : include stdlib.h to avoid warning about implicit declaration of function 'atoi'
misc format string fixes to quiet compiler warnings, affecting many invocations of dbprint across the board. Now using %zu for size_t and the PRI* macros from inttypes.h.