Restore C++17.
Restore C++17.
tesseract-ocr/tesseract,tesseract-ocr/tesseract,amitdo/tesseract,amitdo/tesseract,stweil/tesseract,stweil/tesseract,UB-Mannheim/tesseract,amitdo/tesseract,tesseract-ocr/tesseract,UB-Mannheim/tesseract,stweil/tesseract,UB-Mannheim/tesseract,amitdo/tesseract,amitdo/tesseract,UB-Mannheim/tesseract,tesseract-ocr/tesseract,UB-Mannheim/tesseract,stweil/tesseract,stweil/tesseract,tesseract-ocr/tesseract