我无法与gcc-7链接

我有3个文件：

tester.c

，

knring\u sequential.c

，

knring.h

我按顺序编译它们：

gcc-7 -c knnring_sequential.c -o knnring_sequential.o
ar rcs knnring_sequential.a knnring_sequential.o
gcc-7 -o tester tester.c knnring_sequential.a

当我尝试链接gcc-7时，我收到以下错误消息：

Undefined symbols for architecture x86_64:
  "___asan_init", referenced from:
      __GLOBAL__sub_I_00099_0_knnring_sequential.c in knnring_sequential.a(knnring_sequential.o)
  "___asan_report_load4", referenced from:
      _insert in knnring_sequential.a(knnring_sequential.o)
      _quickSelect in knnring_sequential.a(knnring_sequential.o)
      _quickSort in knnring_sequential.a(knnring_sequential.o)
      _kNN in knnring_sequential.a(knnring_sequential.o)
  "___asan_report_load8", referenced from:
      _insert in knnring_sequential.a(knnring_sequential.o)
      _quickSelect in knnring_sequential.a(knnring_sequential.o)
      _quickSort in knnring_sequential.a(knnring_sequential.o)
      _compute_distances in knnring_sequential.a(knnring_sequential.o)
      _kNN in knnring_sequential.a(knnring_sequential.o)
  "___asan_report_load_n", referenced from:
      _kNN in knnring_sequential.a(knnring_sequential.o)
  "___asan_report_store4", referenced from:
      _insert in knnring_sequential.a(knnring_sequential.o)
      _kNN in knnring_sequential.a(knnring_sequential.o)
  "___asan_report_store8", referenced from:
      _insert in knnring_sequential.a(knnring_sequential.o)
      _compute_distances in knnring_sequential.a(knnring_sequential.o)
      _kNN in knnring_sequential.a(knnring_sequential.o)
  "___asan_version_mismatch_check_v8", referenced from:
      __GLOBAL__sub_I_00099_0_knnring_sequential.c in knnring_sequential.a(knnring_sequential.o)

代码可以在这里找到

---

怎么了？

你用的是Mac电脑吗？无论您是否是，GCC的ASAN（地址消毒器）部分的问题似乎是缺少库或库不完整。您从哪里获得的

gcc-7

？您是否能够编译并链接任何其他代码？你确定已经显示了你使用的所有选项吗？（如果是这样的话，你为什么不使用

-Wall-Wextra-Werror

？它们有助于防止很多问题。）你在Mac上吗？无论您是否是，GCC的ASAN（地址消毒器）部分的问题似乎是缺少库或库不完整。您从哪里获得的

gcc-7

？您是否能够编译并链接任何其他代码？你确定已经显示了你使用的所有选项吗？（如果是这样，为什么不使用

-Wall-Wextra-Werror

？它们有助于防止许多问题。）