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Pure.Krome
Asked: 2020-05-28 04:31:47 +0800 CST

CMake 未正确安装在我的 Ubuntu docker 映像上

  • 772

我正在尝试在 Ubuntu docker 图像实例中使用这个图像相似性 git repo 。

那里列出了安装/构建说明，其中包括 cmake。

当我进入目录并输入时，make我得到一些奇怪的构建错误，我猜这些错误与安装不正确的cmake应用程序有关。

root@492332e8a783:/projects/perceptualdiff/perceptualdiff# ls -al
total 164
drwxr-xr-x 5 root root  4096 May 26 21:22 .
drwxr-xr-x 3 root root  4096 May 26 21:22 ..
-rw-r--r-- 1 root root  1385 May 26 21:22 .clang-format
lrwxrwxrwx 1 root root    21 May 26 21:22 .clang_complete -> .syntastic_cpp_config
drwxr-xr-x 8 root root  4096 May 26 21:22 .git
-rw-r--r-- 1 root root   269 May 26 21:22 .gitignore
-rw-r--r-- 1 root root    11 May 26 21:22 .syntastic_cpp_config
-rw-r--r-- 1 root root   536 May 26 21:22 .travis.yml
-rw-r--r-- 1 root root  2798 May 26 21:22 CMakeLists.txt
-rw-r--r-- 1 root root  2540 May 26 21:22 FindFreeImage.cmake
-rw-r--r-- 1 root root 17990 May 26 21:22 LICENSE
-rw-r--r-- 1 root root   503 May 26 21:22 Makefile
-rw-r--r-- 1 root root  4304 May 26 21:22 README.rst
drwxr-xr-x 3 root root  4096 May 26 21:25 build
-rw-r--r-- 1 root root 10377 May 26 21:22 compare_args.cpp
-rw-r--r-- 1 root root  1937 May 26 21:22 compare_args.h
-rwxr-xr-x 1 root root   206 May 26 21:22 coverage.bash
-rwxr-xr-x 1 root root   535 May 26 21:22 coveralls.bash
-rwxr-xr-x 1 root root   308 May 26 21:22 coverity.bash
-rw-r--r-- 1 root root  1138 May 26 21:22 exceptions.h
-rw-r--r-- 1 root root  3311 May 26 21:22 lpyramid.cpp
-rw-r--r-- 1 root root  1538 May 26 21:22 lpyramid.h
-rwxr-xr-x 1 root root   450 May 26 21:22 memcheck.bash
-rw-r--r-- 1 root root   248 May 26 21:22 memcheck.supp
-rw-r--r-- 1 root root 14705 May 26 21:22 metric.cpp
-rw-r--r-- 1 root root  2209 May 26 21:22 metric.h
-rw-r--r-- 1 root root  2889 May 26 21:22 perceptualdiff.cpp
-rw-r--r-- 1 root root  4885 May 26 21:22 rgba_image.cpp
-rw-r--r-- 1 root root  4123 May 26 21:22 rgba_image.h
drwxr-xr-x 2 root root  4096 May 26 21:22 test
root@492332e8a783:/projects/perceptualdiff/perceptualdiff# make
mkdir -p build
test -f build/Makefile || cmake -H. -Bbuild -DCMAKE_BUILD_TYPE=Release
-- The CXX compiler identification is unknown
CMake Error at CMakeLists.txt:1 (project):
  No CMAKE_CXX_COMPILER could be found.

  Tell CMake where to find the compiler by setting either the environment
  variable "CXX" or the CMake cache entry CMAKE_CXX_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 "/projects/perceptualdiff/perceptualdiff/build/CMakeFiles/CMakeOutput.log".
See also "/projects/perceptualdiff/perceptualdiff/build/CMakeFiles/CMakeError.log".
make: *** [Makefile:7: build] Error 1
root@492332e8a783:/projects/perceptualdiff/perceptualdiff#

并且安装了cmakeapt-get install cmake

root@492332e8a783:/projects/perceptualdiff/perceptualdiff# whereis cmake
cmake: /usr/bin/cmake /usr/share/cmake

那么任何人都可以帮我得到这个代码来构建make（我假设需要使用cmake）？

cmake

1 个回答

  1. Best Answer

    在 ubuntu docker 映像 AFAIK 中，没有预安装 C++ 的编译器。这也是 CMake 抱怨的问题：

    No CMAKE_CXX_COMPILER could be found

    所以你必须通过安装 g++

    sudo apt install g++

    或者如果你想clang++

    sudo apt install clang-9

    它与 cmake 无关。这实际上是 CMake 收集系统信息以实际生成所需 Makefile 的工作流程。如果它找不到所需的软件（例如 c++ 编译器）或模块（例如 foo.cmake），则会生成此类错误。

    请注意，CMake 只是为您创建 Makefile，以便编译您需要运行的源代码make。

    此致 ：）

    • 4

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