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https://gitlab.com/sane-project/backends/issues/237
--- a/backend/genesys/image_pipeline.cpp
+++ b/backend/genesys/image_pipeline.cpp
@@ -703,7 +703,11 @@ bool ImagePipelineNodeCalibrate::get_nex
float value_f = static_cast<float>(value) / max_value;
value_f = (value_f - offset_[curr_calib_i]) * multiplier_[curr_calib_i];
+#if defined(__UCLIBC__)
+ value_f = round(value_f * max_value);
+#else
value_f = std::round(value_f * max_value);
+#endif
value = clamp<std::int32_t>(static_cast<std::int32_t>(value_f), 0, max_value);
set_raw_channel_to_row(out_data, x, ch, value, format);