OpenCV/opencv_contrib/modules/text/cmake/FindTesseract.cmake

# Tesseract OCR
ocv_check_modules(Tesseract tesseract) # lept is excluded (not a direct dependency)
if(NOT Tesseract_FOUND)
  find_path(Tesseract_INCLUDE_DIR tesseract/baseapi.h
    HINTS
    /usr/include
    /usr/local/include)

  find_library(Tesseract_LIBRARY NAMES tesseract
    HINTS
    /usr/lib
    /usr/local/lib)

  find_library(Lept_LIBRARY NAMES lept
    HINTS
    /usr/lib
    /usr/local/lib)

  if(Tesseract_INCLUDE_DIR AND Tesseract_LIBRARY AND Lept_LIBRARY)
    set(Tesseract_INCLUDE_DIRS ${Tesseract_INCLUDE_DIR})
    set(Tesseract_LIBRARIES ${Tesseract_LIBRARY} ${Lept_LIBRARY})
    set(Tesseract_FOUND 1)
  endif()
endif()