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arm-linux-g++ -lts -Wl,-O1 -Wl,-rpath,/usr/local/qt/lib -o demo_qzxing CameraImageWrapper.o qzxing.o imagehandler.o ResultPointCallback.o ResultPoint.o Result.o ReaderException.o Reader.o NotFoundException.o MultiFormatReader.o LuminanceSource.o FormatException.o Exception.o DecodeHints.o BinaryBitmap.o Binarizer.o BarcodeFormat.o AztecReader.o AztecDetectorResult.o StringUtils.o Str.o PerspectiveTransform.o IllegalArgumentException.o HybridBinarizer.o GridSampler.o GreyscaleRotatedLuminanceSource.o GreyscaleLuminanceSource.o GlobalHistogramBinarizer.o EdgeDetector.o DetectorResult.o DecoderResult.o Counted.o CharacterSetECI.o BitSource.o BitMatrix.o BitArray.o Array.o WhiteRectangleDetector.o MonochromeRectangleDetector.o ReedSolomonException.o ReedSolomonDecoder.o GenericGFPoly.o GenericGF.o DataMatrixReader.o UPCEReader.o UPCEANReader.o UPCAReader.o OneDResultPoint.o OneDReader.o MultiFormatUPCEANReader.o MultiFormatOneDReader.o ITFReader.o EAN13Reader.o EAN8Reader.o Code128Reader.o Code39Reader.o QRCodeReader.o QREdgeDetector.o MultipleBarcodeReader.o GenericMultipleBarcodeReader.o ByQuadrantReader.o QRCodeMultiReader.o MultiFinderPatternFinder.o MultiDetector.o AztecDecoder.o AztecDetector.o DataMatrixVersion.o DataMatrixDecoder.o DataMatrixBitMatrixParser.o DataMatrixDataBlock.o DataMatrixDecodedBitStreamParser.o DataMatrixCornerPoint.o DataMatrixDetector.o DataMatrixDetectorException.o DataMatrixMonochromeRectangleDetector.o QRBitMatrixParser.o QRDataBlock.o QRDataMask.o QRDecodedBitStreamParser.o QRDecoder.o QRMode.o QRAlignmentPattern.o QRAlignmentPatternFinder.o QRDetector.o QRFinderPattern.o QRFinderPatternFinder.o QRFinderPatternInfo.o QRVersion.o QRFormatInformation.o QRErrorCorrectionLevel.o main.o mainwindow.o moc_imagehandler.o moc_qzxing.o moc_mainwindow.o    -L/usr/local/tslib/lib -L/usr/local/qt/lib -lQtDeclarative -L/usr/local/qt/lib -L/usr/local/tslib/lib -lQtScript -lQtSql -lQtGui -lQtNetwork -lQtCore -lpthread
AztecDecoder.o: In function `(anonymous namespace)::add(std::string&, unsigned char)':
AztecDecoder.cpp:(.text+0x38): undefined reference to `libiconv_open'
AztecDecoder.cpp:(.text+0x54): undefined reference to `libiconv'
AztecDecoder.cpp:(.text+0x5c): undefined reference to `libiconv_close'
QRDecodedBitStreamParser.o: In function `zxing::qrcode::DecodedBitStreamParser::append(std::string&, unsigned char const*, unsigned int, char const*)':
QRDecodedBitStreamParser.cpp:(.text+0x54): undefined reference to `libiconv_open'
QRDecodedBitStreamParser.cpp:(.text+0xc0): undefined reference to `libiconv'
QRDecodedBitStreamParser.cpp:(.text+0xd0): undefined reference to `libiconv_close'
QRDecodedBitStreamParser.cpp:(.text+0x10c): undefined reference to `libiconv_close'
collect2: error: ld returned 1 exit status
make: *** [demo_qzxing] Error 1