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我試圖在ubuntu上手動鏈接外部庫與C++。由於這是我的第一個C++項目,我錯過了一些基礎知識。 這是我的代碼(這個嘗試連接到傳播):如何在Ubuntu上手動鏈接g ++的庫
#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;
}
如果我只是嘗試,據我瞭解,我需要鏈接庫
[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
運行它,我試着與-l
[email protected]:~/thesis$ g++ -o example1 test.cpp -llibspread
/usr/bin/ld: cannot find -llibspread
collect2: ld returned 1 exit status
我也試過這個(我拍攝黑暗這裏)做到這一點:
[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
任何幫助,將不勝感激。
如果.so文件位於標準位置,「-lspread」將是正確的選項。 – Mat 2012-04-15 20:46:17
您應該跳過-llibspread中的lib,只需使用-lspread – gulyan 2012-04-15 20:47:58