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Help: Clarify execute_process OS-specific command-line encoding

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Issue: #23557
This commit is contained in:
Brad King
2022-07-20 11:45:15 -04:00
parent 9306a5ab28
commit 70c26a65b7
1 changed files with 9 additions and 2 deletions
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11
Help/command/execute_process.rst
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@@ -37,8 +37,15 @@ Options:
``COMMAND``
A child process command line.
CMake executes the child process using operating system APIs directly.
All arguments are passed VERBATIM to the child process.
CMake executes the child process using operating system APIs directly:
* On POSIX platforms, the command line is passed to the
child process in an ``argv[]`` style array.
* On Windows platforms, the command line is encoded as a string such
that child processes using ``CommandLineToArgvW`` will decode the
original arguments.
No intermediate shell is used, so shell operators such as ``>``
are treated as normal arguments.
(Use the ``INPUT_*``, ``OUTPUT_*``, and ``ERROR_*`` options to