thanks!
that‘s right, i add line 'libraries': ['-lX11'] into my binding.gyp that's
ok!
new binding.gyp file is:
{
"targets":[
{
"target_name": "hcaptha",
"sources": [ "addon/hcaptha.cc" ,"addon/cap.cc"],
"cflags": ['-fexceptions','-O2','-Dcimg_use_png'],
"cflags_cc": ['-fexceptions','-O2','-Dcimg_use_png'],
"libraries":['-lX11']
}
]
}
在 2013年1月15日星期二UTC+8下午3时54分18秒，Ben Noordhuis写道：
>
> On Tue, Jan 15, 2013 at 7:08 AM, zhonghua wu <[email protected]<javascript:>>
> wrote:
> > HI,ALL
> >
> > I want to use CImg library to deal images in node.js,so i write an node
> > addon to do it. The compile is success, i run node-gyp build commond,
> that's
> > ok.
> >
> > But when i run the node program,the follow error occurs:
> >
> > [root@localhost hcaptha]# node index.js
> >
> > module.js:485
> > process.dlopen(filename, module.exports);
> > ^
> > Error: /usr/local/nodejs/hcaptha/build/Release/hcaptha.node: undefined
> > symbol: XSendEvent
> > at Object.Module._extensions..node (module.js:485:11)
> > at Module.load (module.js:356:32)
> > at Function.Module._load (module.js:312:12)
> > at Module.require (module.js:362:17)
> > at require (module.js:378:17)
> > at Object.<anonymous> (/usr/local/nodejs/hcaptha/lib/hcap.js:1:75)
> > at Module._compile (module.js:449:26)
> > at Object.Module._extensions..js (module.js:467:10)
> > at Module.load (module.js:356:32)
> > at Function.Module._load (module.js:312:12)
> >
> > the binding.gyp file is:
> >
> > {
> > "targets":[
> > {
> > "target_name": "hcaptha",
> > "sources": [ "addon/hcaptha.cc" ,"addon/cap.cc"],
> > 'cflags': ['-fexceptions','-O2','-Dcimg_use_png'],//the configure
> > using CImg lib
> > 'cflags_cc': ['-fexceptions','-O2','-Dcimg_use_png']
> > }
> > ]
> > }
> >
> > cap.cc code:
> >
> > #include <node.h>
> > #include <string>
> > #include <iostream>
> > #include "cap.h"
> > #include "CImg-1.5.3/CImg.h"
> >
> > using namespace v8;
> > Handle<Value> cap::create(const Arguments& args) {//create an image
> > HandleScope scope;
> > using namespace cimg_library;
> > CImg<unsigned char> captcha(256,64,1,3,0);//delete this line run ok!
> > return scope.Close(Boolean::New(1));
> > }
> > cap::cap(){};
> > cap::~cap(){};
> >
> > index.js code:
> >
> > var obj = require('../build/Release/hcaptha.node');
> >
> > anyone can help me?
>
> XSendEvent is an Xlib function. You probably need to add a
> 'libraries': ['-lX11'] line to your binding.gyp.
>
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