Android (GCC 4.9.x ARMv7 -O2 API-14)

    openssl-1.0.2u          LIB                     https://www.openssl.org/source/
    python-2.7.18           LIB & EXE & SO          https://www.python.org/downloads/

Windows (Visual Studio 2010 X86 /MD)

    bzip2-1.0.8             LIB & DLL               https://sourceware.org/bzip2/
    cairo-1.14.12           LIB & DLL               https://www.cairographics.org/releases/
    freetype-2.10.2         DLL (SSE2)              https://sourceforge.net/projects/freetype/files/
    giflib-5.1.4            LIB                     https://sourceforge.net/projects/giflib/files/
    leptonica-1.74.4        DLL                     https://github.com/DanBloomberg/leptonica/releases
    libjpeg-9e              LIB                     http://www.ijg.org/
    libpng-1.6.37           DLL                     http://www.libpng.org/pub/png/libpng.html
    libtesseract-3.05.02    LIB & DLL               https://github.com/tesseract-ocr/tesseract/releases
    libtiff-4.2.0           LIB & DLL               http://libtiff.maptools.org/
    libwebp-1.3.2           LIB & DLL (SSE4.1)      https://github.com/webmproject/libwebp/tags
    openjpeg-2.3.1          DLL                     https://github.com/uclouvain/openjpeg/releases
    openssl-1.0.2u          DLL (SSE2)              https://www.openssl.org/source/
    pcre-8.44               DLL                     https://ftp.pcre.org/pub/pcre/
    pixman-0.38.4           LIB (SSSE3)             https://www.cairographics.org/releases/
    zint-2.6.7              DLL                     https://sourceforge.net/projects/zint/files/
    zlib-1.3.1              LIB & DLL               http://www.zlib.net/
    zxing-cpp-20161122      LIB                     https://github.com/glassechidna/zxing-cpp