libmodbus Windows下的编译使用

1.下载libmodbus

官方下载地址如下，可以使用git下载或者直接下载zip包

libmodbus下载地址、

2.编译运行

下载到本地文件目录是这样子的

windows下编译需要进入到src/win32下点击configure.js,生成对应的config.h等文件

大部分人是这步出现问题，报错

C: local\libmodbus-3.1.4 libmodbus-master src win32 configurejs

50

文件未找到

错误:

800A0035

代码源Microsoft JScript 运行时错误

这里就要修改configure.js脚本文件。原因是脚本里识别相对路径出现问题，导致找不到对应的文件，这里把里面的相对路径全部改成绝对路径。我把改好的脚本文件放到下面，里面路径要改成你们的。使用文本编辑器编辑脚本文件，做修改如下：

/* Configure script for modbus.dll, specific for Windows with Scripting Host.
 *
 * Inspired by configure.js from libxml2
 *
 * oldfaber  
 *
 */
/* The source directory, relative to the one where this file resides. */
//var srcDir = "..";
var srcDir = "G:\\Kits\\libmodbus-master\\libmodbus-master\\src";
/* Base name of what we are building. */
var baseName = "modbus";
/* Configure file template and output file */
var configFile = "G:\\Kits\\libmodbus-master\\libmodbus-master\\configure.ac";
//var configFile = srcDir + "\\..\\configure.ac";
/* Input and output files for the modbus-version.h include */
var newfile;
/* Version strings for the binary distribution. Will be filled later in the code. */
var verMajor;
var verMinor;
var verMicro;
/* modbus features. */
var dryRun = false;
/* Win32 build options. NOT used yet */
var compiler = "msvc";
/* Local stuff */
var error = 0;
/* Filename */
var newFile;
/* Displays the details about how to use this script. */
function usage() {
    var txt;
    txt = "Usage:\n";
    txt += "  cscript " + WScript.ScriptName + " \n";
    txt += "  cscript " + WScript.ScriptName + " help\n\n";
    txt +=
        "Options can be specified in the form =, where the value is\n";
    txt += "either 'yes' or 'no', if not stated otherwise.\n\n";
    txt +=
        "\nModbus library configure options, default value given in parentheses:\n\n";
    txt +=
        "  dry-run:  Run configure without creating files (" +
        (dryRun ? "yes" : "no") +
        ")\n";
    txt += "\nWin32 build options, default value given in parentheses:\n\n";
    txt += "  compiler: Compiler to be used [msvc|mingw] (" + compiler + ")\n";
    WScript.Echo(txt);
}
/* read the version from the configuration file */
function readVersion() {
    var fso, cf, ln, s;
    fso = new ActiveXObject("Scripting.FileSystemObject");
    cf = fso.OpenTextFile(configFile, 1);
    while (cf.AtEndOfStream !== true) {
        ln = cf.ReadLine();
        s = new String(ln);
        if (s.search(/^m4_define\(\[libmodbus_version_major/) != -1) {
            verMajor = s.substr(s.indexOf(",") + 3, 1);
        } else if (s.search(/^m4_define\(\[libmodbus_version_minor/) != -1) {
            verMinor = s.substr(s.indexOf(",") + 3, 1);
        } else if (s.search(/^m4_define\(\[libmodbus_version_micro/) != -1) {
            verMicro = s.substr(s.indexOf(",") + 3, 1);
        }
    }
    cf.Close();
}
/* create the versioned file */
function createVersionedFile(newfile, unversioned) {
    var fso, ofi, of, ln, s;
    fso = new ActiveXObject("Scripting.FileSystemObject");
    ofi = fso.OpenTextFile(unversioned, 1);
    if (!dryRun) {
        of = fso.CreateTextFile(newfile, true);
    }
    while (ofi.AtEndOfStream !== true) {
        ln = ofi.ReadLine();
        s = new String(ln);
        if (!dryRun && s.search(/\@LIBMODBUS_VERSION_MAJOR\@/) != -1) {
            of.WriteLine(s.replace(/\@LIBMODBUS_VERSION_MAJOR\@/, verMajor));
        } else if (!dryRun && s.search(/\@LIBMODBUS_VERSION_MINOR\@/) != -1) {
            of.WriteLine(s.replace(/\@LIBMODBUS_VERSION_MINOR\@/, verMinor));
        } else if (!dryRun && s.search(/\@LIBMODBUS_VERSION_MICRO\@/) != -1) {
            of.WriteLine(s.replace(/\@LIBMODBUS_VERSION_MICRO\@/, verMicro));
        } else if (!dryRun && s.search(/\@LIBMODBUS_VERSION\@/) != -1) {
            of.WriteLine(
                s.replace(
                    /\@LIBMODBUS_VERSION\@/,
                    verMajor + "." + verMinor + "." + verMicro
                )
            );
        } else {
            if (!dryRun) {
                of.WriteLine(ln);
            }
        }
    }
    ofi.Close();
    if (!dryRun) {
        of.Close();
    }
}
/*
 * main(),
 * Execution begins here.
 */
// Parse the command-line arguments.
for (i = 0; i  0) {
        if (opt == "dry-run") {
            var str = arg.substring(opt.length + 1, arg.length);
            if (opt == 1 || opt == "yes") {
                dryRun = true;
            }
        } else if (opt == "compiler") {
            compiler = arg.substring(opt.length + 1, arg.length);
        } else {
            error = 1;
        }
    } else if (i === 0) {
        if (arg == "help") {
            usage();
            WScript.Quit(0);
        }
    } else {
        error = 1;
    }
}
// If we fail here, it is because the user supplied an unrecognised argument.
if (error !== 0) {
    usage();
    WScript.Quit(error);
}
// Read the the version.
readVersion();
if (error !== 0) {
    WScript.Echo("Version discovery failed, aborting.");
    WScript.Quit(error);
}
newfile = srcDir + "\\modbus-version.h";
createVersionedFile(newfile, srcDir + "\\modbus-version.h.in");
if (error !== 0) {
    WScript.Echo("Creation of " + newfile + " failed, aborting.");
    WScript.Quit(error);
}
WScript.Echo(newfile + " created.");
newfile = "G:\\Kits\\libmodbus-master\\libmodbus-master\\src\\win32\\modbus.dll.manifest";
createVersionedFile(newfile, "G:\\Kits\\libmodbus-master\\libmodbus-master\\src\\win32\\modbus.dll.manifest.in");
if (error !== 0) {
    WScript.Echo("Creation of " + newfile + " failed, aborting.");
    WScript.Quit(error);
}
WScript.Echo(newfile + " created.");
newfile = "G:\\Kits\\libmodbus-master\\libmodbus-master\\src\\win32\\config.h";
createVersionedFile(newfile, "G:\\Kits\\libmodbus-master\\libmodbus-master\\src\\win32\\config.h.win32");
if (error !== 0) {
    WScript.Echo("Creation of " + newfile + " failed, aborting.");
    WScript.Quit(error);
}
WScript.Echo(newfile + " created.");
WScript.Echo("\nLibmodbus configuration completed\n");

然后右击修改后的脚本文件，使用它打开

会出现弹窗创建了对应的文件

这就代表编译成功了。

然后将对应生成的.h文件汇总。最后通过vs studio2019编译对应的库文件就可以了。具体可以参考

libmodbus在Windows平台下安装与编译与测试