Needed to compile Tera Term.

As far as I can tell, GCC has always supported __attribute__((weak)).

Signed-off-by: Biswapriyo Nath <nathbappai@gmail.com>

Code is duplicated in ntdll.dll (for 32bit only and old Wow configuration)
and wow64.dll for new Wow64 configurations.
Signed-off-by: Eric Pouech <eric.pouech@gmail.com>

Showing that:
- load events for 64bit DLLs are generated for a WOW64 process.
- unload events for 64bit DLLs are not generated for a WOW64 process
  (as any other unload event on process teardown).
- a 32bit startup exception is generated as well (with a specific exception
  code)
Signed-off-by: Eric Pouech <eric.pouech@gmail.com>

So that we can "detach" a wined3d surface from ddraw after creating it, in turn
so that we can recreate the backing wined3d texture for a surface, namely for
SetSurfaceDesc().

So that we can allow setting the sub resource and parent ops not from the
texture_sub_resource_created() callback, and also that we can "detach" a wined3d
surface from ddraw after creating it, so that we can recreate the backing
wined3d texture, viz. in SetSurfaceDesc().