This list includes only core defines, all the extension defines aren't included. Several extensions were made core in 3.0 but I haven't renamed their constants in this list.

There may be errors, just let me know and I'll look in to it. Oh and the GL_ prefix has been omitted.

This list of defines is meant to act as a companion to the forward compatible entry points by /dev/klog.

booleans: FALSE, TRUE

buffer objects: ARRAY_BUFFER, BUFFER_ACCESS, BUFFER_MAPPED, BUFFER_MAP_POINTER, BUFFER_SIZE, BUFFER_USAGE, DYNAMIC_COPY, DYNAMIC_DRAW, DYNAMIC_READ, ELEMENT_ARRAY_BUFFER, PIXEL_PACK_BUFFER, PIXEL_UNPACK_BUFFER, READ_ONLY, READ_WRITE, STATIC_COPY, STATIC_DRAW, STATIC_READ, STREAM_COPY, STREAM_DRAW, STREAM_READ, WRITE_ONLY

data types: BOOL, BOOL_VEC2, BOOL_VEC3, BOOL_VEC4, BYTE, DOUBLE, FLOAT, FLOAT_MAT2, FLOAT_MAT2x3, FLOAT_MAT2x4, FLOAT_MAT3, FLOAT_MAT3x2, FLOAT_MAT3x4, FLOAT_MAT4, FLOAT_MAT4x2, FLOAT_MAT4x3, FLOAT_VEC2, FLOAT_VEC3, FLOAT_VEC4, HALF_FLOAT_ARB, INT, INT_SAMPLER_1D_ARRAY_EXT, INT_SAMPLER_1D_EXT, INT_SAMPLER_2D_ARRAY_EXT, INT_SAMPLER_2D_EXT, INT_SAMPLER_2D_RECT_EXT, INT_SAMPLER_3D_EXT, INT_SAMPLER_BUFFER_EXT, INT_SAMPLER_CUBE_EXT, INT_VEC2, INT_VEC3, INT_VEC4, SAMPLER_1D, SAMPLER_1D_ARRAY_EXT, SAMPLER_1D_ARRAY_SHADOW_EXT, SAMPLER_1D_SHADOW, SAMPLER_2D, SAMPLER_2D_ARRAY_EXT, SAMPLER_2D_ARRAY_SHADOW_EXT, SAMPLER_2D_SHADOW, SAMPLER_3D, SAMPLER_BUFFER_EXT, SAMPLER_CUBE, SAMPLER_CUBE_SHADOW_EXT, SHORT, UNSIGNED_BYTE, UNSIGNED_INT, UNSIGNED_INT_24_8_EXT, UNSIGNED_INT_SAMPLER_1D_ARRAY_EXT, UNSIGNED_INT_SAMPLER_1D_EXT, UNSIGNED_INT_SAMPLER_2D_ARRAY_EXT, UNSIGNED_INT_SAMPLER_2D_EXT, UNSIGNED_INT_SAMPLER_2D_RECT_EXT, UNSIGNED_INT_SAMPLER_3D_EXT, UNSIGNED_INT_SAMPLER_BUFFER_EXT, UNSIGNED_INT_SAMPLER_CUBE_EXT, UNSIGNED_INT_VEC2_EXT, UNSIGNED_INT_VEC3_EXT, UNSIGNED_INT_VEC4_EXT, UNSIGNED_NORMALIZED_ARB, UNSIGNED_SHORT

drawing: LINES, LINE_LOOP, LINE_STRIP, MAX_ELEMENTS_INDICES, MAX_ELEMENTS_VERTICES, POINTS, TRIANGLES, TRIANGLE_FAN, TRIANGLE_STRIP

drawing control: ALIASED_LINE_WIDTH_RANGE, ALIASED_POINT_SIZE_RANGE, BACK, CCW, CLIP_DISTANCE0, CLIP_DISTANCE1, CLIP_DISTANCE2, CLIP_DISTANCE3, CLIP_DISTANCE4, CLIP_DISTANCE5, CULL_FACE, CULL_FACE_MODE, CW, DONT_CARE, FASTEST, FILL, FLAT, FRAGMENT_SHADER_DERIVATIVE_HINT, FRONT, FRONT_AND_BACK, FRONT_FACE, LINE, LINE_SMOOTH, LINE_SMOOTH_HINT, LINE_WIDTH, LOWER_LEFT, MAX_CLIP_DISTANCES, MAX_VIEWPORT_DIMS, MULTISAMPLE, NICEST, POINT, POINT_DISTANCE_ATTENUATION, POINT_FADE_THRESHOLD_SIZE, POINT_SIZE, POINT_SIZE_GRANULARITY, POINT_SIZE_MAX, POINT_SIZE_MIN, POINT_SIZE_RANGE, POLYGON_MODE, POLYGON_OFFSET_FACTOR, POLYGON_OFFSET_FILL, POLYGON_OFFSET_LINE, POLYGON_OFFSET_POINT, POLYGON_OFFSET_UNITS, POLYGON_SMOOTH, POLYGON_SMOOTH_HINT, SAMPLES, SAMPLE_ALPHA_TO_COVERAGE, SAMPLE_ALPHA_TO_ONE, SAMPLE_BUFFERS, SAMPLE_COVERAGE, SAMPLE_COVERAGE_INVERT, SAMPLE_COVERAGE_VALUE, SCISSOR_BOX, SCISSOR_TEST, SHADE_MODEL, SMOOTH, SMOOTH_LINE_WIDTH_GRANULARITY, SMOOTH_LINE_WIDTH_RANGE, SMOOTH_POINT_SIZE_GRANULARITY, SMOOTH_POINT_SIZE_RANGE, TEXTURE_COMPRESSION_HINT, UPPER_LEFT, VERTEX_PROGRAM_POINT_SIZE, VIEWPORT

errors: INVALID_ENUM, INVALID_OPERATION, INVALID_VALUE, NO_ERROR, OUT_OF_MEMORY, STACK_OVERFLOW, STACK_UNDERFLOW, TABLE_TOO_LARGE

formats: ALPHA, ALPHA12, ALPHA16, ALPHA16F_ARB, ALPHA16I_EXT, ALPHA16UI_EXT, ALPHA32F_ARB, ALPHA32I_EXT, ALPHA32UI_EXT, ALPHA4, ALPHA8, ALPHA8I_EXT, ALPHA8UI_EXT, ALPHA_SCALE, BGR, BGRA, COMPRESSED_ALPHA, COMPRESSED_RGB, COMPRESSED_RGBA, COMPRESSED_SRGB, COMPRESSED_SRGB_ALPHA, COMPRESSED_TEXTURE_FORMATS, DEPTH24_STENCIL8_EXT, DEPTH_COMPONENT, DEPTH_COMPONENT16, DEPTH_COMPONENT24, DEPTH_COMPONENT32, DEPTH_STENCIL_EXT, NUM_COMPRESSED_TEXTURE_FORMATS, R3_G3_B2, RGB, RGB10, RGB10_A2, RGB12, RGB16, RGB16F_ARB, RGB16I_EXT, RGB16UI_EXT, RGB32F_ARB, RGB32I_EXT, RGB32UI_EXT, RGB4, RGB5, RGB5_A1, RGB8, RGB8I_EXT, RGB8UI_EXT, RGBA, RGBA12, RGBA16, RGBA16F_ARB, RGBA16I_EXT, RGBA16UI_EXT, RGBA2, RGBA32F_ARB, RGBA32I_EXT, RGBA32UI_EXT, RGBA4, RGBA8, RGBA8I_EXT, RGBA8UI_EXT, SRGB, SRGB8, SRGB8_ALPHA8, SRGB_ALPHA, TEXTURE_ALPHA_TYPE_ARB, TEXTURE_BLUE_TYPE_ARB, TEXTURE_DEPTH_TYPE_ARB, TEXTURE_GREEN_TYPE_ARB, TEXTURE_RED_TYPE_ARB, UNSIGNED_BYTE_2_3_3_REV, UNSIGNED_BYTE_3_3_2, UNSIGNED_INT_10_10_10_2, UNSIGNED_INT_2_10_10_10_REV, UNSIGNED_INT_8_8_8_8, UNSIGNED_INT_8_8_8_8_REV, UNSIGNED_SHORT_1_5_5_5_REV, UNSIGNED_SHORT_4_4_4_4, UNSIGNED_SHORT_4_4_4_4_REV, UNSIGNED_SHORT_5_5_5_1, UNSIGNED_SHORT_5_6_5, UNSIGNED_SHORT_5_6_5_REV

framebuffer: ALPHA_INTEGER_EXT, AUX0, AUX1, AUX2, AUX3, AUX_BUFFERS, BACK_LEFT, BACK_RIGHT, BGRA_INTEGER_EXT, BGR_INTEGER_EXT, BLUE_INTEGER_EXT, COLOR, COLOR_BUFFER_BIT, COLOR_CLEAR_VALUE, DEPTH, DEPTH_BUFFER_BIT, DEPTH_CLEAR_VALUE, DRAW_BUFFER, DRAW_BUFFER0, DRAW_BUFFER1, DRAW_BUFFER10, DRAW_BUFFER11, DRAW_BUFFER12, DRAW_BUFFER13, DRAW_BUFFER14, DRAW_BUFFER15, DRAW_BUFFER2, DRAW_BUFFER3, DRAW_BUFFER4, DRAW_BUFFER5, DRAW_BUFFER6, DRAW_BUFFER7, DRAW_BUFFER8, DRAW_BUFFER9, FRONT_LEFT, FRONT_RIGHT, GREEN_INTEGER_EXT, LEFT, MAX_DRAW_BUFFERS, PACK_ALIGNMENT, PACK_IMAGE_HEIGHT, PACK_LSB_FIRST, PACK_ROW_LENGTH, PACK_SKIP_IMAGES, PACK_SKIP_PIXELS, PACK_SKIP_ROWS, PACK_SWAP_BYTES, READ_BUFFER, RED_INTEGER_EXT, RGBA_INTEGER_EXT, RGBA_INTEGER_MODE_EXT, RGB_INTEGER_EXT, RIGHT, STENCIL, STENCIL_BUFFER_BIT, STENCIL_CLEAR_VALUE, STENCIL_INDEX, UNPACK_ALIGNMENT, UNPACK_IMAGE_HEIGHT, UNPACK_LSB_FIRST, UNPACK_ROW_LENGTH, UNPACK_SKIP_IMAGES, UNPACK_SKIP_PIXELS, UNPACK_SKIP_ROWS, UNPACK_SWAP_BYTES

framebuffer object: COLOR_ATTACHMENT0_EXT, COLOR_ATTACHMENT10_EXT, COLOR_ATTACHMENT11_EXT, COLOR_ATTACHMENT12_EXT, COLOR_ATTACHMENT13_EXT, COLOR_ATTACHMENT14_EXT, COLOR_ATTACHMENT15_EXT, COLOR_ATTACHMENT1_EXT, COLOR_ATTACHMENT2_EXT, COLOR_ATTACHMENT3_EXT, COLOR_ATTACHMENT4_EXT, COLOR_ATTACHMENT5_EXT, COLOR_ATTACHMENT6_EXT, COLOR_ATTACHMENT7_EXT, COLOR_ATTACHMENT8_EXT, COLOR_ATTACHMENT9_EXT, DEPTH_ATTACHMENT_EXT, DRAW_FRAMEBUFFER_BINDING_EXT, DRAW_FRAMEBUFFER_EXT, FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT, FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT, FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT, FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT, FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT, FRAMEBUFFER_BINDING_EXT, FRAMEBUFFER_COMPLETE_EXT, FRAMEBUFFER_EXT, FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT, FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT, FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT, FRAMEBUFFER_INCOMPLETE_FORMATS_EXT, FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT, FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_EXT, FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT, FRAMEBUFFER_UNSUPPORTED_EXT, INVALID_FRAMEBUFFER_OPERATION_EXT, MAX_COLOR_ATTACHMENTS_EXT, MAX_RENDERBUFFER_SIZE_EXT, MAX_SAMPLES_EXT, READ_FRAMEBUFFER_BINDING_EXT, READ_FRAMEBUFFER_EXT, RENDERBUFFER_ALPHA_SIZE_EXT, RENDERBUFFER_BINDING_EXT, RENDERBUFFER_BLUE_SIZE_EXT, RENDERBUFFER_DEPTH_SIZE_EXT, RENDERBUFFER_EXT, RENDERBUFFER_GREEN_SIZE_EXT, RENDERBUFFER_HEIGHT_EXT, RENDERBUFFER_INTERNAL_FORMAT_EXT, RENDERBUFFER_RED_SIZE_EXT, RENDERBUFFER_SAMPLES_EXT, RENDERBUFFER_STENCIL_SIZE_EXT, RENDERBUFFER_WIDTH_EXT, STENCIL_ATTACHMENT_EXT, STENCIL_INDEX16_EXT, STENCIL_INDEX1_EXT, STENCIL_INDEX4_EXT, STENCIL_INDEX8_EXT

miscellaneous: DITHER, DOUBLEBUFFER, MAX_TEXTURE_LOD_BIAS, MAX_VARYING_FLOATS, STEREO

pixel operations: ALWAYS, AND, AND_INVERTED, AND_REVERSE, BLEND, BLEND_COLOR, BLEND_DST_ALPHA, BLEND_DST_RGB, BLEND_EQUATION_ALPHA, BLEND_EQUATION_RGB, BLEND_SRC_ALPHA, BLEND_SRC_RGB, CLEAR, COLOR_LOGIC_OP, COLOR_WRITEMASK, CONSTANT_ALPHA, CONSTANT_COLOR, COPY, COPY_INVERTED, DECR, DECR_WRAP, DEPTH_FUNC, DEPTH_RANGE, DEPTH_TEST, DEPTH_WRITEMASK, DST_ALPHA, DST_COLOR, EQUAL, EQUIV, FUNC_ADD, FUNC_REVERSE_SUBTRACT, FUNC_SUBTRACT, GEQUAL, GREATER, INCR, INCR_WRAP, INVERT, KEEP, LEQUAL, LESS, LOGIC_OP, LOGIC_OP_MODE, MAX, MIN, NAND, NEVER, NOOP, NOR, NOTEQUAL, ONE, ONE_MINUS_CONSTANT_ALPHA, ONE_MINUS_CONSTANT_COLOR, ONE_MINUS_DST_ALPHA, ONE_MINUS_DST_COLOR, ONE_MINUS_SRC_ALPHA, ONE_MINUS_SRC_COLOR, OR, OR_INVERTED, OR_REVERSE, REPLACE, RGBA_MODE, SET, SRC_ALPHA, SRC_ALPHA_SATURATE, SRC_COLOR, STENCIL_BACK_FAIL, STENCIL_BACK_FUNC, STENCIL_BACK_PASS_DEPTH_FAIL, STENCIL_BACK_PASS_DEPTH_PASS, STENCIL_BACK_REF, STENCIL_BACK_VALUE_MASK, STENCIL_BACK_WRITEMASK, STENCIL_FAIL, STENCIL_FUNC, STENCIL_PASS_DEPTH_FAIL, STENCIL_PASS_DEPTH_PASS, STENCIL_REF, STENCIL_TEST, STENCIL_VALUE_MASK, STENCIL_WRITEMASK, XOR, ZERO

query objects: CURRENT_QUERY, QUERY_COUNTER_BITS, QUERY_RESULT, QUERY_RESULT_AVAILABLE, SAMPLES_PASSED

shader and program objects: ACTIVE_ATTRIBUTES, ACTIVE_ATTRIBUTE_MAX_LENGTH, ACTIVE_UNIFORMS, ACTIVE_UNIFORM_MAX_LENGTH, ATTACHED_SHADERS, COMPILE_STATUS, CURRENT_PROGRAM, DELETE_STATUS, FRAGMENT_SHADER, INFO_LOG_LENGTH, LINK_STATUS, MAX_PROGRAM_TEXEL_OFFSET_EXT, MIN_PROGRAM_TEXEL_OFFSET_EXT, SHADER_SOURCE_LENGTH, SHADER_TYPE, VALIDATE_STATUS, VERTEX_SHADER

shader uniforms: MAX_FRAGMENT_UNIFORM_COMPONENTS, MAX_VERTEX_UNIFORM_COMPONENTS

state requests: RENDERER, SHADING_LANGUAGE_VERSION, VENDOR, VERSION

texture objects: ACTIVE_TEXTURE, ADD, ADD_SIGNED, BLUE, CLAMP_TO_EDGE, COMBINE, COMBINE_ALPHA, COMBINE_RGB, COMPARE_REF_TO_TEXTURE, CONSTANT, COORD_REPLACE, DECAL, DOT3_RGB, DOT3_RGBA, GREEN, INTERPOLATE, LINEAR, LINEAR_MIPMAP_LINEAR, LINEAR_MIPMAP_NEAREST, MAX_3D_TEXTURE_SIZE, MAX_COMBINED_TEXTURE_IMAGE_UNITS, MAX_CUBE_MAP_TEXTURE_SIZE, MAX_TEXTURE_COORDS, MAX_TEXTURE_IMAGE_UNITS, MAX_TEXTURE_SIZE, MAX_TEXTURE_UNITS, MAX_VERTEX_TEXTURE_IMAGE_UNITS, MIRRORED_REPEAT, MODULATE, NEAREST, NEAREST_MIPMAP_LINEAR, NEAREST_MIPMAP_NEAREST, NONE, OPERAND0_ALPHA, OPERAND0_RGB, OPERAND1_ALPHA, OPERAND1_RGB, OPERAND2_ALPHA, OPERAND2_RGB, OPERAND3_ALPHA, OPERAND3_RGB, OPERAND4_ALPHA, OPERAND4_RGB, OPERAND5_ALPHA, OPERAND5_RGB, OPERAND6_ALPHA, OPERAND6_RGB, OPERAND7_ALPHA, OPERAND7_RGB, PREVIOUS, PROXY_TEXTURE_1D, PROXY_TEXTURE_2D, PROXY_TEXTURE_3D, PROXY_TEXTURE_CUBE_MAP, RED, REPEAT, RGB_SCALE, SRC0_ALPHA, SRC0_RGB, SRC1_ALPHA, SRC1_RGB, SRC2_ALPHA, SRC2_RGB, SRC3_ALPHA, SRC3_RGB, SRC4_ALPHA, SRC4_RGB, SRC5_ALPHA, SRC5_RGB, SRC6_ALPHA, SRC6_RGB, SRC7_ALPHA, SRC7_RGB, SUBTRACT, TEXTURE, TEXTURE_1D, TEXTURE_2D, TEXTURE_3D, TEXTURE_ALPHA_SIZE, TEXTURE_BASE_LEVEL, TEXTURE_BINDING_1D, TEXTURE_BINDING_2D, TEXTURE_BINDING_3D, TEXTURE_BINDING_CUBE_MAP, TEXTURE_BLUE_SIZE, TEXTURE_COMPARE_FUNC, TEXTURE_COMPARE_MODE, TEXTURE_COMPONENTS, TEXTURE_COMPRESSED, TEXTURE_COMPRESSED_IMAGE_SIZE, TEXTURE_CUBE_MAP, TEXTURE_CUBE_MAP_NEGATIVE_X, TEXTURE_CUBE_MAP_NEGATIVE_Y, TEXTURE_CUBE_MAP_NEGATIVE_Z, TEXTURE_CUBE_MAP_POSITIVE_X, TEXTURE_CUBE_MAP_POSITIVE_Y, TEXTURE_CUBE_MAP_POSITIVE_Z, TEXTURE_DEPTH, TEXTURE_DEPTH_SIZE, TEXTURE_FILTER_CONTROL, TEXTURE_GREEN_SIZE, TEXTURE_HEIGHT, TEXTURE_INTERNAL_FORMAT, TEXTURE_LOD_BIAS, TEXTURE_MAG_FILTER, TEXTURE_MAX_LEVEL, TEXTURE_MAX_LOD, TEXTURE_MIN_FILTER, TEXTURE_MIN_LOD, TEXTURE_RED_SIZE, TEXTURE_STENCIL_SIZE_EXT, TEXTURE_WIDTH, TEXTURE_WRAP_R, TEXTURE_WRAP_S, TEXTURE_WRAP_T

transform feedback: INTERLEAVED_ATTRIBS_EXT, MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS_EXT, MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS_EXT, MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS_EXT, PRIMITIVES_GENERATED_EXT, RASTERIZER_DISCARD_EXT, SEPARATE_ATTRIBS_EXT, TRANSFORM_FEEDBACK_BUFFER_BINDING_EXT, TRANSFORM_FEEDBACK_BUFFER_EXT, TRANSFORM_FEEDBACK_BUFFER_MODE_EXT, TRANSFORM_FEEDBACK_BUFFER_SIZE_EXT, TRANSFORM_FEEDBACK_BUFFER_START_EXT, TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN_EXT, TRANSFORM_FEEDBACK_VARYINGS_EXT, TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH_EXT

vertex array object: VERTEX_ARRAY_BINDING_APPLE

vertex arrays: VERTEX_ATTRIB_ARRAY_INTEGER_EXT, VERTEX_ATTRIB_ARRAY_POINTER

vertex attributes: CURRENT_VERTEX_ATTRIB, MAX_VERTEX_ATTRIBS, VERTEX_ATTRIB_ARRAY_BUFFER_BINDING, VERTEX_ATTRIB_ARRAY_ENABLED, VERTEX_ATTRIB_ARRAY_NORMALIZED, VERTEX_ATTRIB_ARRAY_SIZE, VERTEX_ATTRIB_ARRAY_STRIDE, VERTEX_ATTRIB_ARRAY_TYPE