我用zsxwing的答案成功解决了以下问题:

我有在多个主机上构建的源代码(在Raspberry Pi Linux板上，在VMware Linux虚拟机上，等等)。

我有一个Bash脚本，根据机器的主机名创建临时目录，就像这样:

# Get hostname to use as part of directory names
HOST_NAME=`uname -n`

# Create a temporary directory for cmake files so they don't
# end up all mixed up with the source.

TMP_DIR="cmake.tmp.$HOSTNAME"

if [ ! -e $TMP_DIR ] ; then
  echo "Creating directory for cmake tmp files : $TMP_DIR"
  mkdir $TMP_DIR
else
  echo "Reusing cmake tmp dir : $TMP_DIR"
fi

# Create makefiles with CMake
#
# Note: switch to the temporary dir and build parent 
#       which is a way of making cmake tmp files stay
#       out of the way.
#
# Note 2: to clean up cmake files, it is OK to
#        "rm -rf" the temporary directories

echo
echo Creating Makefiles with cmake ...

cd $TMP_DIR

cmake ..

# Run makefile (in temporary directory)

echo
echo Starting build ...

make

为了简化使用“源外”构建时的清理(即在构建目录中构建)，我使用以下脚本:

$ cat ~/bin/cmake-clean-build
#!/bin/bash

if [ -d ../build ]; then
    cd ..
    rm -rf build
    mkdir build
    cd build
else
    echo "build directory DOES NOT exist"
fi

每次你需要清理时，你应该从build目录中获取这个脚本:

. cmake-clean-build

如果您有自定义定义，并希望在清理之前保存它们，请在构建目录中运行以下命令:

sed -ne '/variable specified on the command line/{n;s/.*/-D \0 \\/;p}' CMakeCache.txt

然后创建一个新的构建目录(或删除旧的构建目录并重新创建它)，最后使用上面脚本获得的参数运行cmake。

CMake 3。X

CMake 3.0及以上版本提供了一个“干净”的目标。这将删除任何工件，如目标文件、库文件、可执行文件、生成文件等。

cmake --build C:/foo/build/ --target clean

您还可以清理构建，然后运行构建。在1命令。

cmake --build C:/foo/build --clean-first

但是，这不会清理CMakeCache.txt或相关的CMakeFiles/目录。你可能想这么做。你只需要删除构建文件夹。

# Just delete the build folder
rm C:/foo/build -rf

# You can also just let git delete the build folder as well
git clean -d -f -x

CMake 3.24

现在在CMake 3.24中，你可以执行一个新的构建树配置。这将删除任何现有的CMakeCache.txt文件和相关的CMakeFiles/目录，并从头开始重新创建它们。

一般情况下，你需要这样做:

你想清除CMakeCache.txt中的缓存变量 您希望更改编译器 任何与CMake缓存相关的其他操作

cmake -B C:/foo/build --fresh

我用zsxwing的答案成功解决了以下问题:

我有在多个主机上构建的源代码(在Raspberry Pi Linux板上，在VMware Linux虚拟机上，等等)。

我有一个Bash脚本，根据机器的主机名创建临时目录，就像这样:

# Get hostname to use as part of directory names
HOST_NAME=`uname -n`

# Create a temporary directory for cmake files so they don't
# end up all mixed up with the source.

TMP_DIR="cmake.tmp.$HOSTNAME"

if [ ! -e $TMP_DIR ] ; then
  echo "Creating directory for cmake tmp files : $TMP_DIR"
  mkdir $TMP_DIR
else
  echo "Reusing cmake tmp dir : $TMP_DIR"
fi

# Create makefiles with CMake
#
# Note: switch to the temporary dir and build parent 
#       which is a way of making cmake tmp files stay
#       out of the way.
#
# Note 2: to clean up cmake files, it is OK to
#        "rm -rf" the temporary directories

echo
echo Creating Makefiles with cmake ...

cd $TMP_DIR

cmake ..

# Run makefile (in temporary directory)

echo
echo Starting build ...

make

清除cmake构建输出:

命令行:

$ rm -rf [folder that you builded the project]/
$ cmake --build .

Cmake:

cmake --build . --target clean