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+these files
+  revert-363b53f00069af718f64cf047f19ad5681a8bf6d.patch
+  revert-c46c551c56f78c6bf9e63524c89478695fc4f525.patch
+are the reverts of following commit of mesa:
+  363b53f00069af718f64cf047f19ad5681a8bf6d
+  c46c551c56f78c6bf9e63524c89478695fc4f525
+
+the reason of two patches is described at
+ http://lists.freedesktop.org/archives/mesa-dev/2014-November/070204.html
+
+
+[Mesa-dev] [PATCH 0/2] Disable the EGL state tracker for Linux/DRI builds
+
+Marek Olšák maraeo at gmail.com 
+Tue Nov 4 14:42:43 PST 2014
+
+Hi everybody,
+
+I'm about to address this long-standing issue: The EGL state tracker is
+redundant. It duplicates what st/dri does and it also duplicates what
+the common loader egl_dri2 does, which is used by all classic drivers
+and even works better with gallium drivers.
+
+Let's compare EGL extensions for both backends:
+
+st/egl:
+EGL version string: 1.4 (Gallium)
+EGL client APIs: OpenGL OpenGL_ES OpenGL_ES2 OpenVG
+EGL extensions string:
+    EGL_WL_bind_wayland_display EGL_KHR_image_base EGL_KHR_image_pixmap
+    EGL_KHR_image EGL_KHR_reusable_sync EGL_KHR_fence_sync
+    EGL_KHR_surfaceless_context EGL_NOK_swap_region
+    EGL_NV_post_sub_buffer
+
+egl_dri2:
+EGL version string: 1.4 (DRI2)
+EGL client APIs: OpenGL OpenGL_ES OpenGL_ES2 OpenGL_ES3
+EGL extensions string:
+    EGL_MESA_drm_image EGL_MESA_configless_context EGL_KHR_image_base
+    EGL_KHR_image_pixmap EGL_KHR_image EGL_KHR_gl_texture_2D_image
+    EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image
+    EGL_KHR_surfaceless_context EGL_KHR_create_context
+    EGL_NOK_swap_region EGL_NOK_texture_from_pixmap
+    EGL_CHROMIUM_sync_control EGL_EXT_image_dma_buf_import
+    EGL_NV_post_sub_buffer
+
+egl_dri2 also supports MSAA on the window framebuffer (through st/dri).
+It's really obvious which one is better.
+
+I'm aware of 2 features that we will lose:
+- swrast on Wayland - I'm not sure about this. Perhaps kms-swrast has
+addressed this already.
+- OpenVG - It has never taken off. If people want this on Linux, it should
+use egl_dri2 and st/dri, like OpenGL does.
+
+This series removes st/egl and st/gbm support from the autoconf build
+(the latter depends on the former and is probably just as redundant).
+The next step is to remove all Linux-specific backends from st/egl.
+Windows, Android, and other platform backends will be kept intact,
+therefore st/egl won't be removed completely.
+
+Please comment.
+
+Thanks,
+
+Marek