我试图从为MinGW编写的回溯项目https://code.google.com/p/backtrace-mingw/编译代码，但是使用MinGW-w64。
我的旧安装和全新安装的MinGW-w64会产生同样的问题。 Path在路径变量中设置，也在命令提示符中设置：
C：\ mingw-w64 \ i686-4.9.2-win32-sjlj-rt_v3-rev1 \ mingw32 \ bin
和 C：\ mingw-w64 \ i686-4.9.2-win32-sjlj-rt_v3-rev1 \ mingw32 虽然不需要这个。
这是该项目的makefile：
.PHONY: all clean
all : backtrace.dll test.exe
backtrace.dll : backtrace.c
gcc -O2 -shared -Wall -o $@ $^ -lbfd -lintl -liberty -limagehlp
test.exe : test.c
gcc -g -Wall -o $@ $^
clean :
-del -f backtrace.dll test.exe
编译时我收到警告：
backtrace.c:23:17：致命错误：bfd.h：没有这样的文件或目录#include＆lt; bfd.h＆GT;`
这很奇怪，因为该文件存在于 ../ mingw32 / include 文件夹中。
如果我在compilind dll时添加这个： -IC：\ mingw-w64 \ i686-4.9.2-win32-sjlj-rt_v3-rev1 \ mingw32 \ include 它会继续但是停在指令： #error config.h必须包含在此标题之前且MinGW-w64中缺少config.h
有什么想法吗？
答案 0 :(得分：0)
ming包含路径中的路径是明确缺少的。我不知道为什么。您必须以自己喜欢的方式自行添加：cmake recipe，autoconf recipe，CFLAGS，CPATH，gcc specs。
而且，据我记忆，它仅使用HAVE_STRINGIZE中的config.h宏，并且仅用于定义CONCAT4宏，bfd.h宏未用于#define PACKAGE package
{1}}。所以，欺骗一点安全
bfd.h
包括package com.oplo.user.demo2;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.StrictMode;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
/**
* Created by user on 6/2/2015.
*/
@SuppressWarnings("deprecation")
public class addRecord extends Activity {
@SuppressLint("NewApi")
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add);
if(android.os.Build.VERSION.SDK_INT > 9)
{
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
}
final EditText txtA = (EditText) findViewById(R.id.txtA);
final EditText txtB = (EditText) findViewById(R.id.txtB);
final EditText txtC = (EditText) findViewById(R.id.txtC);
final Button getData = (Button) findViewById(R.id.btnSave);
final Button btnBack = (Button) findViewById(R.id.btnBack);
btnBack.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent i = new Intent(getApplicationContext(), MainActivity.class);
startActivity(i);
}
});
getData.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if(txtA.getText().length()<2){
Toast.makeText(getApplicationContext(), "Input Name", Toast.LENGTH_LONG).show();
}if(txtB.getText().length()<2){
Toast.makeText(getApplicationContext(), "Input Price", Toast.LENGTH_LONG).show();
}if(txtC.getText().length()<2){
Toast.makeText(getApplicationContext(), "Input Description", Toast.LENGTH_LONG).show();
}else{
String url = "http://www.xyz.in/demo.php";
List params = new ArrayList();
//noinspection deprecation
params.add(new BasicNameValuePair("strA", txtA.getText().toString()));
params.add(new BasicNameValuePair("strB", txtB.getText().toString()));
params.add(new BasicNameValuePair("strC", txtC.getText().toString()));
@SuppressWarnings("unused")
String resultServer = getHttpPost(url,params);
//result.setText(resultServer);
Toast.makeText(addRecord.this, "1 Record inserted...", Toast.LENGTH_LONG).show();
emtyText();
txtA.requestFocus();
}
}
public void emtyText(){
txtA.setText("");
txtB.setText("");
txtC.setText("");
}
});
}
public String getHttpPost(String url,List params) {
StringBuilder str = new StringBuilder();
HttpClient client = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
try {
httpPost.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
HttpResponse response = client.execute(httpPost);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if (statusCode == 200) { // Status OK
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(content));
String line;
while ((line = reader.readLine()) != null) {
str.append(line);
}
} else {
Log.e("Log", "Failed to download result..");
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return str.toString();
}
}
答案 1 :(得分：-1)
将它添加到compile语句的末尾：
-I./mingw32/include
所以整个编译语句将是：
gcc -g -Wall -o $@ $^ -I./mingw32/include
所以编译器知道在哪里找到包含文件