Ubuntu 18.04:找不到CMAKE_C_COMPILER

时间:2018-11-13 10:13:16

标签: gcc g++ ubuntu-18.04

我正在尝试从Google安装gtest,但是即使我已经安装了gcc和g ++,由于某种原因,我也会收到此错误。我使用的是Ubuntu 18.04 64位。而且我与Visual Studio无关。

-- The C compiler identification is unknown
CMake Error at CMakeLists.txt:47 (project):
  No CMAKE_C_COMPILER could be found.

  Tell CMake where to find the compiler by setting either the environment
  variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
  the compiler, or to the compiler name if it is in the PATH.


-- Configuring incomplete, errors occurred!
See also "/usr/src/googletest/googletest/CMakeFiles/CMakeOutput.log".
See also "/usr/src/googletest/googletest/CMakeFiles/CMakeError.log".

这里有:

$ gcc --version
gcc (GCC) 6.4.0

$ g++ --version 
g++ (GCC) 6.4.0

这:

user@user:/usr/src/gtest$ whereis g++
g++: /usr/bin/g++ /usr/share/man/man1/g++.1.gz
user@user:/usr/src/gtest$ whereis gcc
gcc: /usr/bin/gcc /usr/lib/gcc /usr/local/cuda-9.0/bin/gcc /usr/share/man/man1/gcc.1.gz

还:

user@user:/usr/src/gtest$ ls -la /usr/bin | grep gcc-6.4
lrwxrwxrwx  1 root root          16 Nov 12 14:47 gcc -> /usr/bin/gcc-6.4


user@user:/usr/src/gtest$ ls -la /usr/bin | grep g++-6
lrwxrwxrwx  1 root root          14 Nov 12 14:51 g++ -> /usr/bin/g++-6
lrwxrwxrwx  1 root root          22 Apr 24  2018 g++-6 -> x86_64-linux-gnu-g++-6
-rwxr-xr-x  1 root root      953176 Apr 24  2018 x86_64-linux-gnu-g++-6

鉴于所有这些,有人知道吗?

谢谢。

更新:这似乎有效:

好的,这似乎可行:

cmake -D CMAKE_C_COMPILER="/usr/local/cuda-9.0/bin/gcc " -D CMAKE_CXX_COMPILER="/usr/bin/g++" /usr/src/gtest/CMakeLists.txt

显然指向gcc使用的cuda。有没有一种方法可以将/ usr / bin /下的设置为默认设置?

0 个答案:

没有答案