#define GL_HISTOGRAM_ALPHA_SIZE_EXT       0x802B
#define GL_HISTOGRAM_LUMINANCE_SIZE_EXT   0x802C
#define GL_HISTOGRAM_SINK_EXT             0x802D
#define GL_MINMAX_EXT                     0x802E
#define GL_MINMAX_FORMAT_EXT              0x802F
#define GL_MINMAX_SINK_EXT                0x8030
#define GL_TABLE_TOO_LARGE_EXT            0x8031
#endif

#ifndef GL_EXT_misc_attribute
#endif

#ifndef GL_EXT_index_array_formats
#define GL_IUI_V2F_EXT                    0x81AD
#define GL_IUI_V3F_EXT                    0x81AE
#define GL_IUI_N3F_V2F_EXT                0x81AF
#define GL_IUI_N3F_V3F_EXT                0x81B0
#define GL_T2F_IUI_V2F_EXT                0x81B1
#define GL_T2F_IUI_V3F_EXT                0x81B2
#define GL_T2F_IUI_N3F_V2F_EXT            0x81B3
#define GL_T2F_IUI_N3F_V3F_EXT            0x81B4
#endif

#ifndef GL_EXT_index_func
#define GL_INDEX_TEST_EXT                 0x81B5
#define GL_INDEX_TEST_FUNC_EXT            0x81B6
#define GL_INDEX_TEST_REF_EXT             0x81B7
#endif

#ifndef GL_EXT_index_material
#define GL_INDEX_MATERIAL_EXT             0x81B8
#define GL_INDEX_MATERIAL_PARAMETER_EXT   0x81B9
#define GL_INDEX_MATERIAL_FACE_EXT        0x81BA
#endif

#ifndef GL_EXT_index_texture
#endif

#ifndef GL_EXT_light_texture
#define GL_FRAGMENT_MATERIAL_EXT          0x8349
#define GL_FRAGMENT_NORMAL_EXT            0x834A
#define GL_FRAGMENT_COLOR_EXT             0x834C
#define GL_ATTENUATION_EXT                0x834D
#define GL_SHADOW_ATTENUATION_EXT         0x834E
#define GL_TEXTURE_APPLICATION_MODE_EXT   0x834F
#define GL_TEXTURE_LIGHT_EXT              0x8350
#define GL_TEXTURE_MATERIAL_FACE_EXT      0x8351
#define GL_TEXTURE_MATERIAL_PARAMETER_EXT 0x8352
/* reuse GL_FRAGMENT_DEPTH_EXT */
#endif

#ifndef GL_EXT_multi_draw_arrays
#endif

#ifndef GL_EXT_packed_pixels
#define GL_UNSIGNED_BYTE_3_3_2_EXT        0x8032
#define GL_UNSIGNED_SHORT_4_4_4_4_EXT     0x8033
#define GL_UNSIGNED_SHORT_5_5_5_1_EXT     0x8034
#define GL_UNSIGNED_INT_8_8_8_8_EXT       0x8035
#define GL_UNSIGNED_INT_10_10_10_2_EXT    0x8036
#endif

#ifndef GL_EXT_paletted_texture
#define GL_COLOR_INDEX1_EXT               0x80E2
#define GL_COLOR_INDEX2_EXT               0x80E3
#define GL_COLOR_INDEX4_EXT               0x80E4
#define GL_COLOR_INDEX8_EXT               0x80E5
#define GL_COLOR_INDEX12_EXT              0x80E6
#define GL_COLOR_INDEX16_EXT              0x80E7
#define GL_TEXTURE_INDEX_SIZE_EXT         0x80ED
#endif

#ifndef GL_EXT_pixel_buffer_object
#define GL_PIXEL_PACK_BUFFER_EXT            0x88EB
#define GL_PIXEL_UNPACK_BUFFER_EXT          0x88EC
#define GL_PIXEL_PACK_BUFFER_BINDING_EXT    0x88ED
#define GL_PIXEL_UNPACK_BUFFER_BINDING_EXT  0x88EF
#endif

#ifndef GL_EXT_pixel_transform
#define GL_PIXEL_TRANSFORM_2D_EXT         0x8330
#define GL_PIXEL_MAG_FILTER_EXT           0x8331
#define GL_PIXEL_MIN_FILTER_EXT           0x8332
#define GL_PIXEL_CUBIC_WEIGHT_EXT         0x8333
#define GL_CUBIC_EXT                      0x8334
#define GL_AVERAGE_EXT                    0x8335
#define GL_PIXEL_TRANSFORM_2D_STACK_DEPTH_EXT 0x8336
#define GL_MAX_PIXEL_TRANSFORM_2D_STACK_DEPTH_EXT 0x8337
#define GL_PIXEL_TRANSFORM_2D_MATRIX_EXT  0x8338
#endif

#ifndef GL_EXT_pixel_transform_color_table
#endif

#ifndef GL_EXT_point_parameters
#define GL_POINT_SIZE_MIN_EXT             0x8126
#define GL_POINT_SIZE_MAX_EXT             0x8127
#define GL_POINT_FADE_THRESHOLD_SIZE_EXT  0x8128
#define GL_DISTANCE_ATTENUATION_EXT       0x8129
#endif

#ifndef GL_EXT_rescale_normal
#define GL_RESCALE_NORMAL_EXT             0x803A
#endif

#ifndef GL_EXT_secondary_color
#define GL_COLOR_SUM_EXT                  0x8458
#define GL_CURRENT_SECONDARY_COLOR_EXT    0x8459
#define GL_SECONDARY_COLOR_ARRAY_SIZE_EXT 0x845A
#define GL_SECONDARY_COLOR_ARRAY_TYPE_EXT 0x845B
#define GL_SECONDARY_COLOR_ARRAY_STRIDE_EXT 0x845C
#define GL_SECONDARY_COLOR_ARRAY_POINTER_EXT 0x845D
#define GL_SECONDARY_COLOR_ARRAY_EXT      0x845E
#endif

#ifndef GL_EXT_separate_specular_color
#define GL_LIGHT_MODEL_COLOR_CONTROL_EXT  0x81F8
#define GL_SINGLE_COLOR_EXT               0x81F9
#define GL_SEPARATE_SPECULAR_COLOR_EXT    0x81FA
#endif

#ifndef GL_EXT_shadow_funcs
#endif

#ifndef GL_EXT_shared_texture_palette
#define GL_SHARED_TEXTURE_PALETTE_EXT     0x81FB
#endif

#ifndef GL_EXT_stencil_two_side
#define GL_STENCIL_TEST_TWO_SIDE_EXT      0x8910
#define GL_ACTIVE_STENCIL_FACE_EXT        0x8911
#endif

#ifndef GL_EXT_stencil_wrap
#define GL_INCR_WRAP_EXT                  0x8507
#define GL_DECR_WRAP_EXT                  0x8508
#endif

#ifndef GL_EXT_subtexture
#endif

#ifndef GL_EXT_texture
#define GL_ALPHA4_EXT                     0x803B
#define GL_ALPHA8_EXT                     0x803C
#define GL_ALPHA12_EXT                    0x803D
#define GL_ALPHA16_EXT                    0x803E
#define GL_LUMINANCE4_EXT                 0x803F
#define GL_LUMINANCE8_EXT                 0x8040
#define GL_LUMINANCE12_EXT                0x8041
#define GL_LUMINANCE16_EXT                0x8042
#define GL_LUMINANCE4_ALPHA4_EXT          0x8043
#define GL_LUMINANCE6_ALPHA2_EXT          0x8044
#define GL_LUMINANCE8_ALPHA8_EXT          0x8045
#define GL_LUMINANCE12_ALPHA4_EXT         0x8046
#define GL_LUMINANCE12_ALPHA12_EXT        0x8047
#define GL_LUMINANCE16_ALPHA16_EXT        0x8048
#define GL_INTENSITY_EXT                  0x8049
#define GL_INTENSITY4_EXT                 0x804A
#define GL_INTENSITY8_EXT                 0x804B
#define GL_INTENSITY12_EXT                0x804C
#define GL_INTENSITY16_EXT                0x804D
#define GL_RGB2_EXT                       0x804E
#define GL_RGB4_EXT                       0x804F
#define GL_RGB5_EXT                       0x8050
#define GL_RGB8_EXT                       0x8051
#define GL_RGB10_EXT                      0x8052
#define GL_RGB12_EXT                      0x8053
#define GL_RGB16_EXT                      0x8054
#define GL_RGBA2_EXT                      0x8055
#define GL_RGBA4_EXT                      0x8056
#define GL_RGB5_A1_EXT                    0x8057
#define GL_RGBA8_EXT                      0x8058
#define GL_RGB10_A2_EXT                   0x8059
#define GL_RGBA12_EXT                     0x805A
#define GL_RGBA16_EXT                     0x805B
#define GL_TEXTURE_RED_SIZE_EXT           0x805C
#define GL_TEXTURE_GREEN_SIZE_EXT         0x805D
#define GL_TEXTURE_BLUE_SIZE_EXT          0x805E
#define GL_TEXTURE_ALPHA_SIZE_EXT         0x805F
#define GL_TEXTURE_LUMINANCE_SIZE_EXT     0x8060
#define GL_TEXTURE_INTENSITY_SIZE_EXT     0x8061
#define GL_REPLACE_EXT                    0x8062
#define GL_PROXY_TEXTURE_1D_EXT           0x8063
#define GL_PROXY_TEXTURE_2D_EXT           0x8064
#define GL_TEXTURE_TOO_LARGE_EXT          0x8065
#endif

#ifndef GL_EXT_texture_compression_s3tc
#define GL_COMPRESSED_RGB_S3TC_DXT1_EXT   0x83F0
#define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT  0x83F1
#define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT  0x83F2
#define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT  0x83F3
#endif

#ifndef GL_EXT_texture_cube_map
#define GL_NORMAL_MAP_EXT                 0x8511
#define GL_REFLECTION_MAP_EXT             0x8512
#define GL_TEXTURE_CUBE_MAP_EXT           0x8513
#define GL_TEXTURE_BINDING_CUBE_MAP_EXT   0x8514
#define GL_TEXTURE_CUBE_MAP_POSITIVE_X_EXT 0x8515
#define GL_TEXTURE_CUBE_MAP_NEGATIVE_X_EXT 0x8516
#define GL_TEXTURE_CUBE_MAP_POSITIVE_Y_EXT 0x8517
#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_EXT 0x8518
#define GL_TEXTURE_CUBE_MAP_POSITIVE_Z_EXT 0x8519
#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_EXT 0x851A
#define GL_PROXY_TEXTURE_CUBE_MAP_EXT     0x851B
#define GL_MAX_CUBE_MAP_TEXTURE_SIZE_EXT  0x851C
#endif

#ifndef GL_EXT_coordinate_frame
#define GL_TANGENT_ARRAY_EXT              0x8439
#define GL_BINORMAL_ARRAY_EXT             0x843A
#define GL_CURRENT_TANGENT_EXT            0x843B
#define GL_CURRENT_BINORMAL_EXT           0x843C
#define GL_TANGENT_ARRAY_TYPE_EXT         0x843E
#define GL_TANGENT_ARRAY_STRIDE_EXT       0x843F
#define GL_BINORMAL_ARRAY_TYPE_EXT        0x8440
#define GL_BINORMAL_ARRAY_STRIDE_EXT      0x8441
#define GL_TANGENT_ARRAY_POINTER_EXT      0x8442
#define GL_BINORMAL_ARRAY_POINTER_EXT     0x8443
#define GL_MAP1_TANGENT_EXT               0x8444
#define GL_MAP2_TANGENT_EXT               0x8445
#define GL_MAP1_BINORMAL_EXT              0x8446
#define GL_MAP2_BINORMAL_EXT              0x8447
#endif

#ifndef GL_EXT_texture_edge_clamp
#define GL_CLAMP_TO_EDGE_EXT              0x812F
#endif

#ifndef GL_EXT_texture_env_add
#endif

#ifndef GL_EXT_texture_env_combine
#define GL_COMBINE_EXT                    0x8570
#define GL_COMBINE_RGB_EXT                0x8571
#define GL_COMBINE_ALPHA_EXT              0x8572
#define GL_RGB_SCALE_EXT                  0x8573
#define GL_ADD_SIGNED_EXT                 0x8574
#define GL_INTERPOLATE_EXT                0x8575
#define GL_CONSTANT_EXT                   0x8576
#define GL_PRIMARY_COLOR_EXT              0x8577
#define GL_PREVIOUS_EXT                   0x8578
#define GL_SOURCE0_RGB_EXT                0x8580
#define GL_SOURCE1_RGB_EXT                0x8581
#define GL_SOURCE2_RGB_EXT                0x8582
#define GL_SOURCE3_RGB_EXT                0x8583
#define GL_SOURCE4_RGB_EXT                0x8584
#define GL_SOURCE5_RGB_EXT                0x8585
#define GL_SOURCE6_RGB_EXT                0x8586
#define GL_SOURCE7_RGB_EXT                0x8587
#define GL_SOURCE0_ALPHA_EXT              0x8588
#define GL_SOURCE1_ALPHA_EXT              0x8589
#define GL_SOURCE2_ALPHA_EXT              0x858A
#define GL_SOURCE3_ALPHA_EXT              0x858B
#define GL_SOURCE4_ALPHA_EXT              0x858C
#define GL_SOURCE5_ALPHA_EXT              0x858D
#define GL_SOURCE6_ALPHA_EXT              0x858E
#define GL_SOURCE7_ALPHA_EXT              0x858F
#define GL_OPERAND0_RGB_EXT               0x8590
#define GL_OPERAND1_RGB_EXT               0x8591
#define GL_OPERAND2_RGB_EXT               0x8592
#define GL_OPERAND3_RGB_EXT               0x8593
#define GL_OPERAND4_RGB_EXT               0x8594
#define GL_OPERAND5_RGB_EXT               0x8595
#define GL_OPERAND6_RGB_EXT               0x8596
#define GL_OPERAND7_RGB_EXT               0x8597
#define GL_OPERAND0_ALPHA_EXT             0x8598
#define GL_OPERAND1_ALPHA_EXT             0x8599
#define GL_OPERAND2_ALPHA_EXT             0x859A
#define GL_OPERAND3_ALPHA_EXT             0x859B
#define GL_OPERAND4_ALPHA_EXT             0x859C
#define GL_OPERAND5_ALPHA_EXT             0x859D
#define GL_OPERAND6_ALPHA_EXT             0x859E
#define GL_OPERAND7_ALPHA_EXT             0x859F
#endif

#ifndef GL_EXT_texture_env_dot3 
#define GL_DOT3_RGB_EXT                   0x8740
#define GL_DOT3_RGBA_EXT                  0x8741
#endif 

#ifndef GL_EXT_texture_filter_anisotropic
#define GL_TEXTURE_MAX_ANISOTROPY_EXT     0x84FE
#define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF
#endif

#ifndef GL_EXT_texture_lod_bias
#define GL_MAX_TEXTURE_LOD_BIAS_EXT       0x84FD
#define GL_TEXTURE_FILTER_CONTROL_EXT     0x8500
#define GL_TEXTURE_LOD_BIAS_EXT           0x8501
#endif

#ifndef GL_EXT_texture_object
#define GL_TEXTURE_PRIORITY_EXT           0x8066
#define GL_TEXTURE_RESIDENT_EXT           0x8067
#define GL_TEXTURE_1D_BINDING_EXT         0x8068
#define GL_TEXTURE_2D_BINDING_EXT         0x8069
#define GL_TEXTURE_3D_BINDING_EXT         0x806A
#endif

#ifndef GL_EXT_texture_perturb_normal
#define GL_PERTURB_EXT                    0x85AE
#define GL_TEXTURE_NORMAL_EXT             0x85AF
#endif

#ifndef GL_EXT_texture3D
#define GL_PACK_SKIP_IMAGES               0x806B
#define GL_PACK_SKIP_IMAGES_EXT           0x806B
#define GL_PACK_IMAGE_HEIGHT              0x806C
#define GL_PACK_IMAGE_HEIGHT_EXT          0x806C
#define GL_UNPACK_SKIP_IMAGES             0x806D
#define GL_UNPACK_SKIP_IMAGES_EXT         0x806D