@@ -513,12 +513,13 @@ void GLObject::check_internal_format_(GLenum internal_format)

         case GL_COMPRESSED_SRGB_ALPHA:

             check_supported_({2, 1}, "GL_EXT_texture_sRGB");

             return;

-        case GL_SR8_EXT:

-            check_supported_({}, "GL_EXT_texture_sRGB_R8");

-            return;

-        case GL_SRG8_EXT:

-            check_supported_({}, "GL_EXT_texture_sRGB_RG8");

-            return;

+        // TODO(rcrnstn): Update GLEW headers.

+        // case GL_SR8_EXT:

+        //     check_supported_({}, "GL_EXT_texture_sRGB_R8");

+        //     return;

+        // case GL_SRG8_EXT:

+        //     check_supported_({}, "GL_EXT_texture_sRGB_RG8");

+        //     return;

         case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:

         case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:

         case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:

@@ -831,8 +832,9 @@ std::string GLObject::str_internal_format_(GLenum internal_format)

         STR_CASE(GL_SRGB8_ALPHA8)

         STR_CASE(GL_COMPRESSED_SRGB)

         STR_CASE(GL_COMPRESSED_SRGB_ALPHA)

-        STR_CASE(GL_SR8_EXT)

-        STR_CASE(GL_SRG8_EXT)

+        // TODO(rcrnstn): Update GLEW headers.

+        // STR_CASE(GL_SR8_EXT)

+        // STR_CASE(GL_SRG8_EXT)

         STR_CASE(GL_COMPRESSED_RGB_S3TC_DXT1_EXT)

         STR_CASE(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT)

         STR_CASE(GL_COMPRESSED_RGBA_S3TC_DXT3_EXT)