2012-04-15 39 views
1

我试图在ubuntu上手动链接外部库与C++。由于这是我的第一个C++项目,我错过了一些基础知识。 这是我的代码(这个尝试连接到传播):如何在Ubuntu上手动链接g ++的库

#include <iostream> 
#include <sp.h> 

using namespace std; 

int main() { 
    int status; 
    status = SP_connect("[email protected]", "test1", 0, 0, 0, 0); 
    cout << "done\n"; 
    return 0; 
} 

如果我只是尝试,据我了解,我需要链接库

[email protected]:~/thesis$ g++ -o example1 test.cpp 
/tmp/cczPLZQ0.o: In function `main': 
test.cpp:(.text+0x39): undefined reference to `SP_connect' 
collect2: ld returned 1 exit status 

运行它,我试着与-l

[email protected]:~/thesis$ g++ -o example1 test.cpp -llibspread 
/usr/bin/ld: cannot find -llibspread 
collect2: ld returned 1 exit status 

我也试过这个(我拍摄黑暗这里)做到这一点:

[email protected]:~/thesis$ g++ -o example1 test.cpp $(pkg-config -cflags /usr/local/lib/libspread) $(pkg-config --libs /usr/local/lib/libspread) 

-cflags: unknown option 
Package /usr/local/lib/libspread was not found in the pkg-config search path. 
Perhaps you should add the directory containing `/usr/local/lib/libspread.pc' 
to the PKG_CONFIG_PATH environment variable 
No package '/usr/local/lib/libspread' found 
/tmp/ccU8GTC2.o: In function `main': 
test.cpp:(.text+0x39): undefined reference to `SP_connect' 
collect2: ld returned 1 exit status 

任何帮助,将不胜感激。

+6

如果.so文件位于标准位置,“-lspread”将是正确的选项。 – Mat 2012-04-15 20:46:17

+1

您应该跳过-llibspread中的lib,只需使用-lspread – gulyan 2012-04-15 20:47:58

回答

1

由于@Mat表示您应该使用-lspread并省略前缀lib