We don't want to free the executable code (actually a Chunk+Heap) using same method we use to free memory pages (delete).
This would be the same situation on jailbroken iOS and WP.
Now the JIT code is always allocated and never freed on Symbian.
New UNUSABLE_MMAP code path for platforms that cannot use the required flags (Xbox 360, Symbian). Falls back to malloc() instead.
N1 define for compilers (GCCE) that don't like to assume (int)-1 will safely cast to (char)-1.
Miscellaneous space->tab fixes.
Add missing #include to various files.
strings.h isn't provided by MSVC so we don't include it there; it's needed
for other OSes/compilers.
Get rid of pre-ISO-C malloc.h includes; malloc is provided by stdlib.h.
Fixes some linuxisms.
Prepend __builtin_ to __clear_cache, calling it without the prefix is a
GNU extension.
