c編譯錯誤

Question

我想編譯一個名爲randfold的程序，它處理RNA摺疊。但是在sudo make期間，我正在爲c程序收到以下消息。

params.o: In function `scale_parameters': 
params.c:(.text+0x160): undefined reference to `log' 
params.c:(.text+0x1bc): undefined reference to `log' 
fold.o: In function `HairpinE': 
fold.c:(.text+0x3981): undefined reference to `log' 
fold.o: In function `LoopEnergy': 
fold.c:(.text+0x3bd3): undefined reference to `log' 
fold.c:(.text+0x3dfa): undefined reference to `log' 
fold.o:fold.c:(.text+0x4f81): more undefined references to `log' follow 
collect2: ld returned 1 exit status 
make: *** [randfold] Error 1 

可能是這些錯誤的原因是什麼？

Answer 1

在編譯（鏈接器）行的末尾添加-lm以與數學庫鏈接。