+# 1D textures are not available on OpenGL ES
+optional GL_SAMPLER_1D_ARRAY_EXT
+optional GL_SAMPLER_1D_ARRAY_SHADOW_EXT
+optional GL_INT_SAMPLER_1D_EXT
+optional GL_INT_SAMPLER_1D_ARRAY_EXT
+optional GL_UNSIGNED_INT_SAMPLER_1D_EXT
+optional GL_UNSIGNED_INT_SAMPLER_1D_ARRAY_EXT
+# Buffer texture samplers additionally require ARB_texture_buffer_object