# AUTOGEN_COMMAND_LINE_LENGTH_MAX

Added in version 3.29.

Command line length limit for autogen targets, i.e. `moc` or `uic`, that triggers the use of response files on Windows instead of passing all arguments to the command line.

- An empty (or unset) value sets the limit to 32000

- A positive non zero integer value sets the exact command line length limit.

By default `AUTOGEN_COMMAND_LINE_LENGTH_MAX` is initialized from `CMAKE_AUTOGEN_COMMAND_LINE_LENGTH_MAX`.

See the `cmake-qt(7)` manual for more information on using CMake with Qt.