包含文件中的CGO未定义参考 [英] CGO undefined reference in included files

问题描述

在Go中结束OpenJtalk，成功地包含了文件，并且引用类型没有问题，但是函数触发了 undefined reference 错误.

Wraping up OpenJtalk in Go, files are successfully included and types are referenced without an issue, but functions trigger an undefined reference error.

jtalk.go:

package main

// #cgo CFLAGS: -I/home/vagrant/open_jtalk/njd [...etc]
/*
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>

// Main headers 
#include "mecab.h"
#include "njd.h"
#include "jpcommon.h"
#include "HTS_engine.h"

// Sub headers 
#include "text2mecab.h"
#include "mecab2njd.h"
#include "njd_set_pronunciation.h"
#include "njd_set_digit.h"
#include "njd_set_accent_phrase.h"
#include "njd_set_accent_type.h"
#include "njd_set_unvoiced_vowel.h"
#include "njd_set_long_vowel.h"
#include "njd2jpcommon.h"
*/
import "C"

type Open_JTalk struct {
   mecab C.Mecab           each of these struct references are fine
   njd C.NJD 
   jpcommon C.JPCommon 
   engine C.HTS_Engine 
}

func (open_jtalk *Open_JTalk) Open_JTalk_initialize() {
   C.Mecab_initialize(&open_jtalk.mecab)             // when any function is called the error happens
   C.NJD_initialize(&open_jtalk.njd)
   C.JPCommon_initialize(&open_jtalk.jpcommon)
   C.HTS_Engine_initialize(&open_jtalk.engine)
}

func main() {

}

奇怪的是，这些函数在类型之后立即声明:

And the weird part is that those same functions are declared right after the types:

mecab.h

// line 1584
typedef struct _Mecab{
   char **feature;
   int size;
   mecab_t *mecab;
} Mecab;

BOOL Mecab_initialize(Mecab *m);

项目网页: http://open-jtalk.sourceforge.net/

推荐答案

您需要添加cgo链接器选项( LDFLAGS )以及库的路径和名称.例如

You need to add cgo linker options (LDFLAGS) with the path to and the name of your library. e.g.

// #cgo CFLAGS: -Iyour-include-path
// #cgo LDFLAGS: -Lyour-library-path -lyour-library-name-minus-the-lib-part

这篇关于包含文件中的CGO未定义参考的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！