void build(Solution &s)
{
    auto &tess = s.addProject("google.tesseract", "master");
    tess += Git("https://github.com/tesseract-ocr/tesseract", "", "{v}");

    auto &libtesseract = tess.addTarget<LibraryTarget>("libtesseract");
    {
        libtesseract.setChecks("libtesseract");

        libtesseract.ExportAllSymbols = true;
        libtesseract.PackageDefinitions = true;

        libtesseract += cpp14;

        libtesseract += "include/.*"_rr;
        libtesseract += "src/.*"_rr;
        libtesseract -= "src/lstm/.*\\.cc"_rr;
        libtesseract -= "src/training/.*"_rr;

        libtesseract -=
            "src/api/tesseractmain.cpp",
            "src/viewer/svpaint.cpp";

        libtesseract.Public += "include"_idir;
        libtesseract.Protected +=
            "src/opencl"_id,
            "src/ccmain"_id,
            "src/api"_id,
            "src/dict"_id,
            "src/viewer"_id,
            "src/wordrec"_id,
            "src/ccstruct"_id,
            "src/cutil"_id,
            "src/textord"_id,
            "src/ccutil"_id,
            "src/lstm"_id,
            "src/classify"_id,
            "src/arch"_id,
            "src/training"_id;

        if (libtesseract.getCompilerType() == CompilerType::MSVC ||
            libtesseract.getCompilerType() == CompilerType::ClangCl)
        {
            libtesseract += "__SSE4_1__"_def;
            libtesseract.CompileOptions.push_back("-arch:AVX2");

            // openmp
            //if (libtesseract.getOptions()["openmp"] == "true")
            if (0)
            {
                if (libtesseract.getCompilerType() == CompilerType::MSVC)
                    libtesseract.CompileOptions.push_back("-openmp");
                else
                    libtesseract.CompileOptions.push_back("-fopenmp");
                libtesseract += "_OPENMP=201107"_def;
                if (libtesseract.getBuildSettings().Native.ConfigurationType == ConfigurationType::Debug)
                    libtesseract += "vcompd.lib"_slib;
                else
                    libtesseract += "vcomp.lib"_slib;
            }
        }

        auto win_or_mingw =
            libtesseract.getBuildSettings().TargetOS.Type == OSType::Windows ||
            libtesseract.getBuildSettings().TargetOS.Type == OSType::Mingw
            ;

        // check fma flags
        libtesseract -= "src/arch/dotproductfma.cpp";

        if (libtesseract.getBuildSettings().TargetOS.Type != OSType::Windows)
        {
            libtesseract["src/arch/dotproductavx.cpp"].args.push_back("-mavx");
            libtesseract["src/arch/dotproductsse.cpp"].args.push_back("-msse4.1");
            libtesseract["src/arch/intsimdmatrixsse.cpp"].args.push_back("-msse4.1");
            libtesseract["src/arch/intsimdmatrixavx2.cpp"].args.push_back("-mavx2");
        }
        if (!win_or_mingw)
            libtesseract += "pthread"_slib;

        libtesseract.Public += "HAVE_CONFIG_H"_d;
        libtesseract.Public += "_SILENCE_STDEXT_HASH_DEPRECATION_WARNINGS=1"_d;
        libtesseract.Public += "HAVE_LIBARCHIVE"_d;
        libtesseract.Interface += sw::Shared, "TESS_IMPORTS"_d;
        libtesseract.Private += sw::Shared, "TESS_EXPORTS"_d;

        libtesseract.Public += "org.sw.demo.danbloomberg.leptonica"_dep;
        libtesseract.Public += "org.sw.demo.libarchive.libarchive"_dep;

        if (win_or_mingw)
        {
            libtesseract.Public += "ws2_32.lib"_slib;
            libtesseract.Protected += "NOMINMAX"_def;
        }

        libtesseract.Variables["TESSERACT_MAJOR_VERSION"] = libtesseract.Variables["PACKAGE_MAJOR_VERSION"];
        libtesseract.Variables["TESSERACT_MINOR_VERSION"] = libtesseract.Variables["PACKAGE_MINOR_VERSION"];
        libtesseract.Variables["TESSERACT_MICRO_VERSION"] = libtesseract.Variables["PACKAGE_PATCH_VERSION"];
        libtesseract.Variables["TESSERACT_VERSION_STR"] = "master";
        libtesseract.configureFile("include/tesseract/version.h.in", "tesseract/version.h");
    }

    //
    auto &tesseract = tess.addExecutable("tesseract");
    tesseract += cpp14;
    tesseract += "src/api/tesseractmain.cpp";
    tesseract += libtesseract;

    //
    auto &tessopt = tess.addStaticLibrary("tessopt");
    tessopt += cpp14;
    tessopt += "src/training/tessopt.*"_rr;
    tessopt.Public += libtesseract;

    //
    auto &common_training = tess.addStaticLibrary("common_training");
    common_training += cpp14;
    common_training +=
        "src/training/commandlineflags.cpp",
        "src/training/commandlineflags.h",
        "src/training/commontraining.cpp",
        "src/training/commontraining.h",
        "src/training/ctc.cpp",
        "src/training/ctc.h",
        "src/training/errorcounter.cpp",
        "src/training/errorcounter.h",
        "src/training/intfeaturedist.cpp",
        "src/training/intfeaturedist.h",
        "src/training/intfeaturemap.cpp",
        "src/training/intfeaturemap.h",
        "src/training/mastertrainer.cpp",
        "src/training/mastertrainer.h",
        "src/training/networkbuilder.cpp",
        "src/training/networkbuilder.h",
        "src/training/sampleiterator.cpp",
        "src/training/sampleiterator.h",
        "src/training/trainingsampleset.cpp",
        "src/training/trainingsampleset.h";
    common_training.Public += tessopt;

    //
    auto &unicharset_training = tess.addStaticLibrary("unicharset_training");
    unicharset_training += cpp14;
    unicharset_training +=
        "src/training/fileio.*"_rr,
        "src/training/icuerrorcode.*"_rr,
        "src/training/icuerrorcode.h",
        "src/training/lang_model_helpers.*"_rr,
        "src/training/lstmtester.*"_rr,
        "src/training/lstmtrainer.*"_rr,
        "src/training/normstrngs.*"_rr,
        "src/training/unicharset_training_utils.*"_rr,
        "src/training/validat.*"_rr;
    unicharset_training.Public += common_training;
    unicharset_training.Public += "org.sw.demo.unicode.icu.i18n"_dep;

    //
#define ADD_EXE(n, ...)               \
    auto &n = tess.addExecutable(#n); \
    n += cpp14;                       \
    n += "src/training/" #n ".*"_rr;  \
    n.Public += __VA_ARGS__;          \
    n

    ADD_EXE(ambiguous_words, libtesseract);
    ADD_EXE(classifier_tester, common_training);
    ADD_EXE(combine_lang_model, unicharset_training);
    ADD_EXE(combine_tessdata, libtesseract);
    ADD_EXE(cntraining, common_training);
    ADD_EXE(dawg2wordlist, libtesseract);
    ADD_EXE(mftraining, common_training) += "src/training/mergenf.*"_rr;
    ADD_EXE(shapeclustering, common_training);
    ADD_EXE(unicharset_extractor, unicharset_training);
    ADD_EXE(wordlist2dawg, libtesseract);
    ADD_EXE(lstmeval, unicharset_training);
    ADD_EXE(lstmtraining, unicharset_training);
    ADD_EXE(set_unicharset_properties, unicharset_training);

    ADD_EXE(text2image, unicharset_training);
    text2image += cpp14;
    text2image +=
        "src/training/boxchar.cpp",
        "src/training/boxchar.h",
        "src/training/degradeimage.cpp",
        "src/training/degradeimage.h",
        "src/training/icuerrorcode.h",
        "src/training/ligature_table.cpp",
        "src/training/ligature_table.h",
        "src/training/normstrngs.cpp",
        "src/training/normstrngs.h",
        "src/training/pango_font_info.cpp",
        "src/training/pango_font_info.h",
        "src/training/stringrenderer.cpp",
        "src/training/stringrenderer.h",
        "src/training/text2image.cpp",
        "src/training/tlog.cpp",
        "src/training/tlog.h",
        "src/training/util.h";
    text2image.Public += "org.sw.demo.gnome.pango.pangocairo"_dep;
}

void check(Checker &c)
{
    auto &s = c.addSet("libtesseract");
    s.checkFunctionExists("getline");
    s.checkIncludeExists("dlfcn.h");
    s.checkIncludeExists("inttypes.h");
    s.checkIncludeExists("memory.h");
    s.checkIncludeExists("stdint.h");
    s.checkIncludeExists("stdlib.h");
    s.checkIncludeExists("string.h");
    s.checkIncludeExists("sys/stat.h");
    s.checkIncludeExists("sys/types.h");
    s.checkIncludeExists("tiffio.h");
    s.checkIncludeExists("unistd.h");
    s.checkTypeSize("long long int");
    s.checkTypeSize("size_t");
    s.checkTypeSize("void *");
    s.checkTypeSize("wchar_t");
    {
        auto &c = s.checkSymbolExists("snprintf");
        c.Parameters.Includes.push_back("stdio.h");
    }
}