497cad7c88
Previously we did not clearly document that `--target` is only supported to be specified once. Even worse, specifying it multiple times would silently ignore any previously specified targets and only build the last target. Update the documentation to specify this. Update the implementation to reject multiple `--target` options to prevent user errors.
278 lines
8.2 KiB
ReStructuredText
278 lines
8.2 KiB
ReStructuredText
.. cmake-manual-description: CMake Command-Line Reference
|
|
|
|
cmake(1)
|
|
********
|
|
|
|
Synopsis
|
|
========
|
|
|
|
.. parsed-literal::
|
|
|
|
cmake [<options>] (<path-to-source> | <path-to-existing-build>)
|
|
cmake [(-D <var>=<value>)...] -P <cmake-script-file>
|
|
cmake --build <dir> [<options>] [-- <build-tool-options>...]
|
|
cmake -E <command> [<options>...]
|
|
cmake --find-package <options>...
|
|
|
|
Description
|
|
===========
|
|
|
|
The "cmake" executable is the CMake command-line interface. It may be
|
|
used to configure projects in scripts. Project configuration settings
|
|
may be specified on the command line with the -D option.
|
|
|
|
CMake is a cross-platform build system generator. Projects specify
|
|
their build process with platform-independent CMake listfiles included
|
|
in each directory of a source tree with the name CMakeLists.txt.
|
|
Users build a project by using CMake to generate a build system for a
|
|
native tool on their platform.
|
|
|
|
.. _`CMake Options`:
|
|
|
|
Options
|
|
=======
|
|
|
|
.. include:: OPTIONS_BUILD.txt
|
|
|
|
``-E <command> [<options>...]``
|
|
See `Command-Line Tool Mode`_.
|
|
|
|
``-L[A][H]``
|
|
List non-advanced cached variables.
|
|
|
|
List cache variables will run CMake and list all the variables from
|
|
the CMake cache that are not marked as INTERNAL or ADVANCED. This
|
|
will effectively display current CMake settings, which can then be
|
|
changed with -D option. Changing some of the variables may result
|
|
in more variables being created. If A is specified, then it will
|
|
display also advanced variables. If H is specified, it will also
|
|
display help for each variable.
|
|
|
|
``--build <dir>``
|
|
Build a CMake-generated project binary tree.
|
|
|
|
This abstracts a native build tool's command-line interface with the
|
|
following options:
|
|
|
|
::
|
|
|
|
<dir> = Project binary directory to be built.
|
|
--target <tgt> = Build <tgt> instead of default targets.
|
|
May only be specified once.
|
|
--config <cfg> = For multi-configuration tools, choose <cfg>.
|
|
--clean-first = Build target 'clean' first, then build.
|
|
(To clean only, use --target 'clean'.)
|
|
--use-stderr = Ignored. Behavior is default in CMake >= 3.0.
|
|
-- = Pass remaining options to the native tool.
|
|
|
|
Run ``cmake --build`` with no options for quick help.
|
|
|
|
``-N``
|
|
View mode only.
|
|
|
|
Only load the cache. Do not actually run configure and generate
|
|
steps.
|
|
|
|
``-P <file>``
|
|
Process script mode.
|
|
|
|
Process the given cmake file as a script written in the CMake
|
|
language. No configure or generate step is performed and the cache
|
|
is not modified. If variables are defined using -D, this must be
|
|
done before the -P argument.
|
|
|
|
``--find-package``
|
|
Run in pkg-config like mode.
|
|
|
|
Search a package using find_package() and print the resulting flags
|
|
to stdout. This can be used to use cmake instead of pkg-config to
|
|
find installed libraries in plain Makefile-based projects or in
|
|
autoconf-based projects (via share/aclocal/cmake.m4).
|
|
|
|
``--graphviz=[file]``
|
|
Generate graphviz of dependencies, see CMakeGraphVizOptions.cmake for more.
|
|
|
|
Generate a graphviz input file that will contain all the library and
|
|
executable dependencies in the project. See the documentation for
|
|
CMakeGraphVizOptions.cmake for more details.
|
|
|
|
``--system-information [file]``
|
|
Dump information about this system.
|
|
|
|
Dump a wide range of information about the current system. If run
|
|
from the top of a binary tree for a CMake project it will dump
|
|
additional information such as the cache, log files etc.
|
|
|
|
``--debug-trycompile``
|
|
Do not delete the try_compile build tree. Only useful on one try_compile at a time.
|
|
|
|
Do not delete the files and directories created for try_compile
|
|
calls. This is useful in debugging failed try_compiles. It may
|
|
however change the results of the try-compiles as old junk from a
|
|
previous try-compile may cause a different test to either pass or
|
|
fail incorrectly. This option is best used for one try-compile at a
|
|
time, and only when debugging.
|
|
|
|
``--debug-output``
|
|
Put cmake in a debug mode.
|
|
|
|
Print extra information during the cmake run like stack traces with
|
|
message(send_error ) calls.
|
|
|
|
``--trace``
|
|
Put cmake in trace mode.
|
|
|
|
Print a trace of all calls made and from where.
|
|
|
|
``--trace-expand``
|
|
Put cmake in trace mode.
|
|
|
|
Like ``--trace``, but with variables expanded.
|
|
|
|
``--warn-uninitialized``
|
|
Warn about uninitialized values.
|
|
|
|
Print a warning when an uninitialized variable is used.
|
|
|
|
``--warn-unused-vars``
|
|
Warn about unused variables.
|
|
|
|
Find variables that are declared or set, but not used.
|
|
|
|
``--no-warn-unused-cli``
|
|
Don't warn about command line options.
|
|
|
|
Don't find variables that are declared on the command line, but not
|
|
used.
|
|
|
|
``--check-system-vars``
|
|
Find problems with variable usage in system files.
|
|
|
|
Normally, unused and uninitialized variables are searched for only
|
|
in CMAKE_SOURCE_DIR and CMAKE_BINARY_DIR. This flag tells CMake to
|
|
warn about other files as well.
|
|
|
|
.. include:: OPTIONS_HELP.txt
|
|
|
|
Command-Line Tool Mode
|
|
======================
|
|
|
|
CMake provides builtin command-line tools through the signature::
|
|
|
|
cmake -E <command> [<options>...]
|
|
|
|
Run ``cmake -E`` or ``cmake -E help`` for a summary of commands.
|
|
Available commands are:
|
|
|
|
``chdir <dir> <cmd> [<arg>...]``
|
|
Change the current working directory and run a command.
|
|
|
|
``compare_files <file1> <file2>``
|
|
Check if ``<file1>`` is same as ``<file2>``. If files are the same,
|
|
then returns 0, if not itreturns 1.
|
|
|
|
``copy <file>... <destination>``
|
|
Copy files to ``<destination>`` (either file or directory).
|
|
If multiple files are specified, the ``<destination>`` must be
|
|
directory and it must exist.
|
|
|
|
``copy_directory <dir>... <destination>``
|
|
Copy directories to ``<destination>`` directory.
|
|
If ``<destination>`` directory does not exist it will be created.
|
|
|
|
``copy_if_different <file>... <destination>``
|
|
Copy files to ``<destination>`` (either file or directory) if
|
|
they have changed.
|
|
If multiple files are specified, the ``<destination>`` must be
|
|
directory and it must exist.
|
|
|
|
``echo [<string>...]``
|
|
Displays arguments as text.
|
|
|
|
``echo_append [<string>...]``
|
|
Displays arguments as text but no new line.
|
|
|
|
``env [--unset=NAME]... [NAME=VALUE]... COMMAND [ARG]...``
|
|
Run command in a modified environment.
|
|
|
|
``environment``
|
|
Display the current environment variables.
|
|
|
|
``make_directory <dir>...``
|
|
Create ``<dir>`` directories. If necessary, create parent
|
|
directories too.
|
|
|
|
``md5sum <file>...``
|
|
Compute md5sum of files.
|
|
|
|
``remove [-f] <file>...``
|
|
Remove the file(s), use ``-f`` to force it.
|
|
|
|
``remove_directory <dir>``
|
|
Remove a directory and its contents.
|
|
|
|
``rename <oldname> <newname>``
|
|
Rename a file or directory (on one volume).
|
|
|
|
``sleep <number>...``
|
|
Sleep for given number of seconds.
|
|
|
|
``tar [cxt][vf][zjJ] file.tar [<options>...] [--] [<file>...]``
|
|
Create or extract a tar or zip archive. Options are:
|
|
|
|
``--``
|
|
Stop interpreting options and treat all remaining arguments
|
|
as file names even if they start in ``-``.
|
|
``--files-from=<file>``
|
|
Read file names from the given file, one per line.
|
|
Blank lines are ignored. Lines may not start in ``-``
|
|
except for ``--add-file=<name>`` to add files whose
|
|
names start in ``-``.
|
|
``--mtime=<date>``
|
|
Specify modification time recorded in tarball entries.
|
|
``--format=<format>``
|
|
Specify the format of the archive to be created.
|
|
Supported formats are: ``7zip``, ``gnutar``, ``pax``,
|
|
``paxr`` (restricted pax, default), and ``zip``.
|
|
|
|
``time <command> [<args>...]``
|
|
Run command and return elapsed time.
|
|
|
|
``touch <file>``
|
|
Touch a file.
|
|
|
|
``touch_nocreate <file>``
|
|
Touch a file if it exists but do not create it.
|
|
|
|
UNIX-specific Command-Line Tools
|
|
--------------------------------
|
|
|
|
The following ``cmake -E`` commands are available only on UNIX:
|
|
|
|
``create_symlink <old> <new>``
|
|
Create a symbolic link ``<new>`` naming ``<old>``.
|
|
|
|
Windows-specific Command-Line Tools
|
|
-----------------------------------
|
|
|
|
The following ``cmake -E`` commands are available only on Windows:
|
|
|
|
``delete_regv <key>``
|
|
Delete Windows registry value.
|
|
|
|
``env_vs8_wince <sdkname>``
|
|
Displays a batch file which sets the environment for the provided
|
|
Windows CE SDK installed in VS2005.
|
|
|
|
``env_vs9_wince <sdkname>``
|
|
Displays a batch file which sets the environment for the provided
|
|
Windows CE SDK installed in VS2008.
|
|
|
|
``write_regv <key> <value>``
|
|
Write Windows registry value.
|
|
|
|
See Also
|
|
========
|
|
|
|
.. include:: LINKS.txt
|