Question

使用我当前的CMakeLists.txt个文件，我可以使用以下代码构建我的项目：

sourceDir>  cmake -G "MinGW Makefiles" .

来自源目录的

。

然而，我无法获得树外构建：

buildDir>  cmake -G "MinGW Makefiles"  ..\MyProg

这是我从cmake得到的错误：

CMake Error at C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeMinGWFindMake.cmake:20 (MESSAGE):
  sh.exe was found in your PATH, here:

  C:/Program Files (x86)/Git/bin/sh.exe

  For MinGW make to work correctly sh.exe must NOT be in your path.

  Run cmake from a shell that does not have sh.exe in your PATH.

  If you want to use a UNIX shell, then use MSYS Makefiles.

Call Stack (most recent call first):
  CMakeLists.txt:16 (project)


CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_C_COMPILER_ENV_VAR
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_C_COMPILER
CMake Error: Could not find cmake module file:S:/MyProg/build/CMakeFiles/CMakeCCompiler.cmake
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_CXX_COMPILER_ENV_VAR
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_CXX_COMPILER
CMake Error: Could not find cmake module file:S:/MyProg/build/CMakeFiles/CMakeCXXCompiler.cmake
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
-- Configuring incomplete, errors occurred!

Answer 1

这些错误来自于设置不同的环境，这是没有意义的。这两个命令是从完全相同的shell运行的吗？此外，一旦配置了in-source，就无法进行源代码构建。所以，试试这个：

mkdir newsource;在这里结帐 mkdir ../build cd ../build cmake -G“MinGW Makefiles”../ newsource

mkdir insource;在这里结帐你的来源 cmake -G“MinGW Makefiles”。

从完全相同的shell中执行这两个操作。

Answer 2

我找到了解决问题的简单方法：

buildDir>  cmake -G "MinGW Makefiles"  ..\MyProg\
buildDir>  cmake -G "MinGW Makefiles"  ..\MyProg\

我第一次收到问题中显示的错误。第二次一切都按照预期进行。

如果您有更好的逻辑解决方案，请告诉我。

Answer 3

我认为你必须删除＆＃34; MinGW \ msys \ 1.0 \ bin＆＃34;从你的Windows PATH环境变量。

cmake：树外构建的问题

3 个答案: