C编译器标识是未知的

Question

我想编译一个C程序。当我运行cmake

   build]$ cmake ../
    -- The C compiler identification is unknown
    -- Check for working C compiler: /usr/bin/cc
    -- Check for working C compiler: /usr/bin/cc -- broken
    CMake Error at /usr/share/cmake-3.0/Modules/CMakeTestCCompiler.cmake:61 (message):
      The C compiler "/usr/bin/cc" is not able to compile a simple test program.

失败，输出如下:

   Change Dir: /home/vahid/dev/Indexer/build/CMakeFiles/CMakeTmp
  Run Build Command:"/usr/bin/make" "cmTryCompileExec3431547622/fast"
  /usr/bin/make -f CMakeFiles/cmTryCompileExec3431547622.dir/build.make
  CMakeFiles/cmTryCompileExec3431547622.dir/build
  make[1]: Entering directory
  '/home/vahid/dev/Indexer/build/CMakeFiles/CMakeTmp'
  /usr/bin/cmake -E cmake_progress_report
  /home/vahid/dev/Indexer/build/CMakeFiles/CMakeTmp/CMakeFiles 1
  Building C object
  CMakeFiles/cmTryCompileExec3431547622.dir/testCCompiler.c.o
  /usr/bin/cc -o CMakeFiles/cmTryCompileExec3431547622.dir/testCCompiler.c.o
  -c /home/vahid/dev/Indexer/build/CMakeFiles/CMakeTmp/testCCompiler.c
  /usr/lib/gcc/x86_64-unknown-linux-gnu/4.9.0/cc1: error while loading shared
  libraries: libisl.so.13: cannot open shared object file: No such file or
  directory
  CMakeFiles/cmTryCompileExec3431547622.dir/build.make:57: recipe for target
  'CMakeFiles/cmTryCompileExec3431547622.dir/testCCompiler.c.o' failed
  make[1]: *** [CMakeFiles/cmTryCompileExec3431547622.dir/testCCompiler.c.o]
  Error 1
  make[1]: Leaving directory
  '/home/vahid/dev/Indexer/build/CMakeFiles/CMakeTmp'
  Makefile:118: recipe for target 'cmTryCompileExec3431547622/fast' failed
  make: *** [cmTryCompileExec3431547622/fast] Error 2

  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:2 (project)

-- Configuring incomplete, errors occurred!
See also "/home/vahid/dev/Indexer/build/CMakeFiles/CMakeOutput.log".
See also "/home/vahid/dev/Indexer/build/CMakeFiles/CMakeError.log".

为什么会出现这个错误?我该怎么修理它?

Answer 1

为什么会出现这个错误?

根据这个错误信息:

/usr/bin/cc -o CMakeFiles/cmTryCompileExec3431547622.dir/testCCompiler.c.o -c /home/vahid/dev/Indexer/build/CMakeFiles/CMakeTmp/testCCompiler.c
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.9.0/cc1: error while loading shared libraries: libisl.so.13: cannot open shared object file: No such file or directory

看起来你的编译器不工作了。

我该如何修复它?

重新安装工具链应该是修复它最简单的方法。

如何做到这一点取决于你的操作系统，如果你使用Linux发行版，如Debian，你可以使用apt-get install build-essential之类的东西来安装它;如果您使用的是Fedora或CentOS，您可以使用yum group install c-development。