Blender Git Loki

Fix possible harmful warning: the value of the size argument in 'strncat' is too large, change the argument to be the free space in the destination buffer minus the terminating null byte

Fix T41318: OSL broken on Linux kubuntu 14.04

Now for real, hopefully.

Fix wrong assert happening in the CUEW

Fix: T41318
OSL compiler signature changed with 1.5.

Deduplicate CUDA and OpenCL wranglers

For now it was mainly about OpenCL wrangler being duplicated
between Cycles and Compositor, but with OpenSubdiv work those
wranglers were gonna to be duplicated just once again.

This commit makes it so Cycles and Compositor uses wranglers
from this repositories:

- https://github.com/CudaWrangler/cuew
- https://github.com/OpenCLWrangler/clew

This repositories are based on the wranglers we used before
and they'll be likely continued maintaining by us plus some
more players in the market.

Pretty much straightforward change with some tricks in the
CMake/SCons to make this libs being passed to the linker
after all other libraries in order to make OpenSubdiv linked
against those wranglers in the future.

For those who're worrying about Cycles being less standalone,
it's not truth, it's rather more flexible now and in the future
different wranglers might be used in Cycles. For now it'll
just mean those libs would need to be put into Cycles repository
together with some other libs from Blender such as mikkspace.

This is mainly platform maintenance commit, should not be any
changes to the user space.

Reviewers: juicyfruit, dingto, campbellbarton

Reviewed By: juicyfruit, dingto, campbellbarton

Differential Revision: https://developer.blender.org/D707

Cleanup: indentation

Fix for double freeing of MEM_guardedalloc'ed memory originating from BLF_lang_set().

Macros: replace UNPACK#OP -> UNPACK#_EX, allow suffix

Fix memory leak of main lock when reading from library files.

Fix T41175: Quad View - Properties Region - Clip Tickable option bug?

Tweaks to macros

Macros: prevent instantiation of args for type checks

also make CHECK_TYPE_INLINE more strict

Cleanup: replace int cast with floorf when comparing time

Correct cu->pathlen treated as a float

Correct glitch in recent menu commit, click-drag locked menus

Fix T41284: The python ops log doesn't work.

Fixed linking OIIO on Windows. The debug and optimized options need to be before each individual library in a list.

OSX/buildsystem: prepare usage on OSX 10.10 - Yosemite
- important: requires cmake >= 2.8.12 to read minor version right,
aka older cmake rates 10.10 lower than 10.6 for example ! ( sigh )

Fix for glitch with menus not reliably setting an active item (D674)

When menus are clamped to the window bounds,
its was possible not to have an active menu-item under the mouse,
Making Ctrl+S,Enter not completely reliable.

Changes needed to support this are:

- menu item is activated on popup menus
(to avoid relying on mouse-over)
- moving mouse away from menu items only de-activates when over a new menu-item.
- Mouse clicks are ignored if they are not directly over the menu item.

fix check for not llvm