Undefined symbols for architecture x86_64

I'm trying to run following code in mac os x mount lion (64 bit) but the curl library is not designed for same.

Please help how can i run this

 

C++ Application Code

 

#include

#include

#include

#include

size_t write_data(void *ptr, size_t size, size_t nmemb, FILE *stream) {

    size_t written;

    written = fwrite(ptr, size, nmemb, stream);

    return written;

}

 

int main() {

    std::string tempname = "temp";

    CURL *curl;

    CURLcode res;

    curl = curl_easy_init();

    if(curl) {

        FILE *fp = fopen(tempname.c_str(),"wb");

        curl_easy_setopt(curl, CURLOPT_URL, "http://www.google.com");

        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);

        curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);

        res = curl_easy_perform(curl);

        curl_easy_cleanup(curl);

        fclose(fp);

        fp = fopen(tempname.c_str(),"rb");

        fseek (fp , 0 , SEEK_END);

        long lSize = ftell (fp);

        rewind(fp);

        char *buffer = new char[lSize+1];

        fread (buffer, 1, lSize, fp);

        buffer[lSize] = 0;

        fclose(fp);

        std::string content(buffer);

        delete [] buffer;

    }

}

 

Error:

 

Undefined symbols for architecture x86_64:

  "_curl_easy_cleanup", referenced from:

      _main in main.o

  "_curl_easy_init", referenced from:

      _main in main.o

  "_curl_easy_perform", referenced from:

      _main in main.o

  "_curl_easy_setopt", referenced from:

      _main in main.o

ld: symbol(s) not found for architecture x86_64

clang: error: linker command failed with exit code 1 (use -v to see invocation)

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C CURL ld: symbol(s) not found

I am trying to write a cli application using libcurl. I am getting this error and I have been unable to find a solution. Would someone please help me out here?

 

wes-imac:RR Ticket Watcher wes_dean$ gcc -o build/Test.app -I/opt/local/include -L/opt/local/lib -lcurl -lidn -lssl -lcrypto -lssl -lcrypto -lz source/*

source/main.c:7: warning: ‘write_callback_func’ used but never defined

Undefined symbols for architecture x86_64:

  "_write_callback_func", referenced from:

      _main in ccBWsrR4.o

ld: symbol(s) not found for architecture x86_64

collect2: ld returned 1 exit status

 

I have tried the -m32 option as well. I get the same error, only for a 32 bit architecture.

 

The tutorial that I am using says to include the curl/types.h header file, but this is the result when I do that.

 

wes-imac:RR Ticket Watcher wes_dean$ gcc -o build/Test.app -I/opt/local/include -L/opt/local/lib -lcurl -lidn -lssl -lcrypto -lssl -lcrypto -lz source/*

source/main.c:6:24: error: curl/types.h: No such file or directory

 

I have installed XCode with the Command Line Tools. I am running OS 10.8.2 and doing all development from the terminal.

 

 

 

 

#include

#include

#include

#include

#include

#include

 

 

size_t static write_callback_func (void *buffer, size_t size, size_t nmemb, void *userp);

 

 

main (argc, argv, envp)

int argc;

char *argv[], *envp[];

{

  CURL *curl;

  CURLcode res;

  char *response;

 

 

  char url[255];

 

 

  if (argc > 1) {

    strcpy(url, argv[1]);

  }

 

 

  curl = curl_easy_init();

  if (curl) {

    curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0);

    curl_easy_setopt(curl, CURLOPT_URL, url);

    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback_func);

    curl_easy_setopt(curl, CURLOPT_WRITEDATA, &response);

 

 

    res = curl_easy_perform(curl);

    if (res != CURLE_OK) {

      fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));

    }  

    curl_easy_cleanup(curl);

  }

 

 

  printf("%s", response);

 

 

  printf("\n");

 

 

  return 0;

}

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Undefined symbols for architecture x86_64

I'm trying to run following code in mac os x mount lion (64 bit) but the curl library is not designed for same.

Please help how can i run this

 

C++ Application Code

 

#include

#include

#include

#include

size_t write_data(void *ptr, size_t size, size_t nmemb, FILE *stream) {

    size_t written;

    written = fwrite(ptr, size, nmemb, stream);

    return written;

}

 

int main() {

    std::string tempname = "temp";

    CURL *curl;

    CURLcode res;

    curl = curl_easy_init();

    if(curl) {

        FILE *fp = fopen(tempname.c_str(),"wb");

        curl_easy_setopt(curl, CURLOPT_URL, "http://www.google.com");

        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);

        curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);

        res = curl_easy_perform(curl);

        curl_easy_cleanup(curl);

        fclose(fp);

        fp = fopen(tempname.c_str(),"rb");

        fseek (fp , 0 , SEEK_END);

        long lSize = ftell (fp);

        rewind(fp);

        char *buffer = new char[lSize+1];

        fread (buffer, 1, lSize, fp);

        buffer[lSize] = 0;

        fclose(fp);

        std::string content(buffer);

        delete [] buffer;

    }

}

 

Error:

 

Undefined symbols for architecture x86_64:

  "_curl_easy_cleanup", referenced from:

      _main in main.o

  "_curl_easy_init", referenced from:

      _main in main.o

  "_curl_easy_perform", referenced from:

      _main in main.o

  "_curl_easy_setopt", referenced from:

      _main in main.o

ld: symbol(s) not found for architecture x86_64

clang: error: linker command failed with exit code 1 (use -v to see invocation)

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Re: C CURL ld: symbol(s) not found

Hey buddy,

I am facing a similar problem .. how do you run this for 64 bit arcitecture please give me the link to the tutorial .. please help .. thanks in advance.

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