Reasons to NOT define `_GNU_SOURCE`:

 - access to lots of nonstandard GNU/Linux extension functions
 - access to traditional functions which were omitted from the POSIX standard (often for good reason, such as being replaced with better alternatives, or being tied to particular legacy implementations)
 - access to low-level functions that cannot be portable, but that you sometimes need for implementing system utilities like mount, ifconfig, etc.
 - broken behavior for lots of POSIX-specified functions, where the GNU folks disagreed with the standards committee on how the functions should behave and decided to do their own thing.

WARNING: This could be a BREAKING CHANGE for some platforms! I'm afraid something could be wrong on `rglfw.c` module.

To be able to compile on Windows I had to modify `glfw/src/platform.c` line 74. I couldn't manage to compile without that change, help is welcome!

* Win32: resolve some symbols re-definition of windows.h in glfw3native.h

This reflects GLFW's fix: https://github.com/glfw/glfw/issues/1348

This enables to build with a external GLFW containing the
following fix:

* 05f6c13d11

Currently, glfw3native.h of the internal GLFW is customized at
2feea87b61

This fix is compatible with the current customized glfw3native.h.

This fix enables us to update it to the latest and remove the
customization.

* Win32: remove unneeded typedef

This reverts commit d786af83fc.

* Updated QOI to latest version.

* Enable back QOI support!

* Stray extra space! Should be good now.

* - Fixing the error of loading VOX models.

* - fixed spaces

* Add basic compute shader and ssbo support in rlgl.

* Add rlBindImageTexture (untested), now requires SUPPORT_COMPILE_SHADERS

* Delete glad.c

* Delete glad.h

* Delete khrplatform.h

* Revert to previous glad.h

* Remove "glad.c"

Co-authored-by: Ray <raysan5@gmail.com>

raylib was using `stb_perlin.h` library to generate perlin noise, it seems that recently this library has been flagged as it could be infringing some algorythm patent. For security, it has been removed from raylib.

* Supress most warnings on rmodels.c

NOTE: unused symbols have been deleted and the following report will show in what location they were previously.

Unused symbols:
- ArrayInt - vox_loader.h: line 84
- initArrayInt - vox_loader.h: line 168
- insertArrayInt - vox_loader.h: line 175
- freeArrayInt - vox_loader.h: line 186
- offsetX, offsetY, offsetZ - vox_loader.h: line 610
- chunkTotalChildSize - vox_loader.h: line 623

Other warnings:
- initialization discards 'const' qualifier - vox_loader.h: line 572
- incompatible types for VoxVector3 and Vector3 - rmodels.c: line 5748
- incompatible types for VoxColor and Color - rmodels: line 5749

* Remove ToVector3 and ToColor functions and assign values directly

- Ran GenerateMappings.cmake to restore mapping changes

* new models_magicavoxel_loading example

* Portable header-only file "magicavoxel_loader.h" for MagicaVoxel loader example.

* models_magicavoxel_loading example added to CMakeLists.txt and Makefile

* fix models_magicavoxel_loading example for linux.

* * vox_loader into "src/external/vox_loader.h"
 * vox file support for "models.c"
 * updated example "models/models_magicavoxel_loading.c"

* * Fix Vox_FreeArrays (removed memory leak)

* * removed magicavoxel_loader.h

* * Revert vs2019 solution

* * vox_loader.h -> Support custom memory allocators
* vox_loader.h -> Reverse Y<>Z for left to right handed system
* models/models_magicavoxel_loading.c -> fix model center

* * vox_loader.h -> Removed Raylib dependencies

* * Changed Vox_LoadFileName to Vox_LoadFromMemory

* new models_magicavoxel_loading example

* Portable header-only file "magicavoxel_loader.h" for MagicaVoxel loader example.

* models_magicavoxel_loading example added to CMakeLists.txt and Makefile

* fix models_magicavoxel_loading example for linux.

* * vox_loader into "src/external/vox_loader.h"
 * vox file support for "models.c"
 * updated example "models/models_magicavoxel_loading.c"

* * Fix Vox_FreeArrays (removed memory leak)

* * removed magicavoxel_loader.h

* * Revert vs2019 solution

Missing fclose in tinyobj loader.

* Update jar_xm.h

Major bug fixes and refactoring

* Update jar_xm.h

update to version 0.31