使用FFTW架构x86_64的取消定义的符号 [英] Undefine symbols for architecture x86_64 using FFTW

问题描述

Ceeloss-MacBook-Pro:desktop ceelos$ gcc -o prog -I/usr/local/include test.c
Undefined symbols for architecture x86_64:
  "_fftw_destroy_plan", referenced from:
      _main in test-IBqBdS.o
  "_fftw_execute", referenced from:
      _main in test-IBqBdS.o
  "_fftw_plan_dft_1d", referenced from:
      _main in test-IBqBdS.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Ceeloss-MacBook-Pro:desktop ceelos$ 

结果
这是什么告诉我？

What's this telling me?

推荐答案

它告诉你，你忘了用 -L 和 -l 来告诉GCC哪里FFTW库并且他们叫什么。

It's telling you that you forgot to use -L and -l to tell gcc where the FFTW libraries are and what they're called.

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