编译windows-x86版本的tesseract-ocr

third_party/leptonica/windows/lib/x86/pkgconfig/lept.pc

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+prefix=D:/sane/code_app/third_party/leptonica/windows/leptonica-1.74.4/build/release
+exec_prefix=${prefix}/bin
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+Name: leptonica
+Description: An open source C library for efficient image processing and image analysis operations
+Version: 1.74.4
+Libs: -L${libdir} -lleptonica-1.74.4
+Libs.private:
+Cflags: -I${includedir} -I${includedir}/leptonica

third_party/ocr/tesseract-ocr/windows/lib/x86/pkgconfig/tesseract.pc

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+prefix=D:/sane/code_app/third_party/ocr/tesseract-ocr/windows/tesseract-4.1.1/build/release
+exec_prefix=${prefix}/bin
+libdir=${prefix}/lib
+includedir=${prefix}/include
+
+Name: libtesseract
+Description: An OCR Engine that was developed at HP Labs between 1985 and 1995... and now at Google.
+URL: https://github.com/tesseract-ocr/tesseract
+Version: 4.1.1
+Libs: -L${libdir} -ltesseract41   
+Libs.private:
+Cflags: -I${includedir}