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In order to keep infinitely-recursive scripts from causing a stack
overflow in the CMake executable, CMake now imposes a maximum
recursion limit before issuing an error message. The limit can be
adjusted at runtime with CMAKE_MAXIMUM_RECURSION_DEPTH.

Fixes: #18694

-- Do not use CMAKE_C_FLAGS_RELEASE flags when CMAKE_BUILD_TYPE is empty
   if CMAKE_BUILD_TYPE was not set the generator would use Release settings
   this does not match the documented behavior of CMAKE_BUILD_TYPE

-- CMAKE_C_FLAGS_<CONFIG> not used when -kernel is present
   Fixes issue where CMAKE_C_FLAGS_<CONFIG> is ignored when -kernel option is present as a compiler option
   When the -kernel option is added to an executable it uses a different set of language flags
   This does not occur -kernel=<type> is used or if it is added as part of a link flag
   The variables CMAKE_<LANG>_GHS_KERNEL_FLAGS_<CONFIG> are removed
   NOTE: By default this only added the flag -ldebug which links in the debugger library.

-- Separate compiler options by newlines

David Aguilar authored Dec 20, 2018 and Brad King committed Jan 16, 2019

Teach find_package() to resolve symlinks when constructing
relocatable prefix paths from discovered cmake config files.
The `CMAKE_FIND_PACKAGE_RESOLVE_SYMLINKS` variable enables
this behavior when set to `TRUE`.

Fixes: #18704

In commit v3.4.0-rc1~57^2 (Help: document CTEST_CUSTOM_* variables,
2015-09-17), the CTEST_CUSTOM_TESTS_IGNORE variable was documented with
a typo.

Joachim Wuttke authored Nov 01, 2018 and Joachim Wuttke committed Nov 08, 2018

This resolves issue #18514

Also add a cross-reference to if(DEFINED ENV{var}).

Short intro to pages cmake-variables.7 and cmake-env-variables.7,
with backlinks to cmake-language.7.

Peter Wu authored Oct 07, 2018 and Brad King committed Oct 26, 2018

This makes binaries independent of the build directory by not embedding
the build directory via RPATH.  The tests are partially based on the
existing RuntimePath test, but with the check moved into a POST_BUILD
command such that it can be skipped when the platform lacks support.

Fixes: #18413

Mikhail Korolev authored Sep 21, 2018 and Brad King committed Sep 25, 2018

Fixes: #18287

Fixes: #18368

This useful variable was previously undocumented. This commit adds
brief documentation for it.

Mikhail Korolev authored Aug 28, 2018 and Brad King committed Aug 30, 2018

Create a ``CMAKE_VS_WINRT_BY_DEFAULT`` variable to indicate this.

Fixes: #18286

Robert Maynard authored Aug 07, 2018 and Brad King committed Aug 07, 2018

Also add a test case for the behavior.

Gregor Jasny authored Jul 29, 2018 and Brad King committed Aug 01, 2018

Add `XCODE_SCHEME_*` target properties and associated variables
`CMAKE_XCODE_SCHEME_*` to initialize them on target creation.
Map each target property value to an associated Xcode scheme entry.

Co-Author: Martin Sander <mail@martin-sander.de>
Fixes: #17919

Add documentation for both the CMake variable and environment variable
of this name pattern.  Update references to these names to link to their
documents.  Clarify the pattern used to construct their names.

Basil Fierz authored May 19, 2018 and Brad King committed May 29, 2018

Add new `version=` parameter in the toolset setting to select the
version.  Add variable `CMAKE_VS_PLATFORM_TOOLSET_VERSION` to hold the
version, if one is set (blank indicates default).

Fixes: #17549

Fixes: #17955

Alex Turbov authored Apr 29, 2018 and Craig Scott committed May 03, 2018

* Introduce `CMAKE_PROJECT_VERSION` and the corresponsing components:
  `CMAKE_PROJECT_VERSION_MAJOR`, `CMAKE_PROJECT_VERSION_MINOR`,
  `CMAKE_PROJECT_VERSION_PATCH` and `CMAKE_PROJECT_VERSION_TWEAK`.

* `CPack` module use `CMAKE_PROJECT_VERSION_MAJOR`,
  `CMAKE_PROJECT_VERSION_MINOR` and `CMAKE_PROJECT_VERSION_PATCH`
  to initialize corresponsing CPack variables.

Bastien Schatt authored Apr 15, 2018 and Brad King committed Apr 19, 2018

Create `CMAKE_VS_SDK_*_DIRECTORIES` variables to tell the VS generator
how to populate fields in `.vcxproj` files that specify SDK directories.

Fixes: #17908

Arkady Shapkin authored Mar 22, 2018 and Brad King committed Apr 04, 2018

Provide the MSVC toolset version number based on the compiler version.

Fixes: #16923

Marc authored Mar 28, 2018 and Brad King committed Mar 29, 2018

This can be used for example to organize all following targets into one
Visual Studio folder:

  set(CMAKE_FOLDER Libraries)
  add_subdirectory(libA)
  add_subdirectory(libB)
  set(CMAKE_FOLDER Executables)
  add_subdirectory(progA)

Another possibility is using the current directory name for all
following targets in subdirectories:

  get_filename_component(dirname "${CMAKE_CURRENT_SOURCE_DIR}" NAME)
  string(APPEND CMAKE_FOLDER "/${dirname}")

Alex Turbov authored Mar 16, 2018 and Craig Scott committed Mar 17, 2018

This sets variables like PROJECT_HOMEPAGE_URL, which can be
used as default values for various things (packaging modules,
doxygen defaults, etc.). Some packaging modules have been
updated to do this as part of this commit.

Co-Author: Craig Scott <craig.scott@crascit.com>

For consistency with the VERSION keyword, also define the
<PROJECT-NAME>_DESCRIPTION variable.

Fixes: cmake/cmake#16815

This removes duplicated code for per-config variable initialization by
providing a `cmake_initialize_per_config_variable(<PREFIX> <DOCSTRING>)`
function.

This function initializes a `<PREFIX>` cache variable from `<PREFIX>_INIT`
and unless the `CMAKE_NOT_USING_CONFIG_FLAGS` variable is defined, does
the same with `<PREFIX>_<CONFIG>` from `<PREFIX>_<CONFIG>_INIT` for every
`<CONFIG>` in `CMAKE_CONFIGURATION_TYPES` for multi-config generators or
`CMAKE_BUILD_TYPE` for single-config generators.

This enables configuration of build parallelism with the Ninja generator by
passing arguments on the command line to CMake. For example,

  cmake \
    '-DCMAKE_JOB_POOLS:STRING=compile=5;link=2' \
    -DCMAKE_JOB_POOL_COMPILE:STRING=compile \
    -DCMAKE_JOB_POOL_LINK:STRING=link \
      ~/src/MyProject

Melven Roehrig-Zoellner authored Nov 20, 2017 and Brad King committed Nov 27, 2017

CodeBlocks uses his own compiler ID string which may differ from
CMAKE_<LANG>_COMPILER_ID. In particular CodeBlocks supports a large
number of different compiler configurations (with different IDs)
This commit adds a cache variable "CMAKE_CODEBLOCKS_COMPILER_ID",
so the user might adjust it when needed.

Use its value to initialize the `CUDA_SEPARABLE_COMPILATION` target
property when targets are created.

Fixes: #17478

Introduces CPACK_DEFAULT_DIRECTORY_INSTALL_PERMISSIONS
variable which adds support for functionality introduced
by CMAKE_DEFAULT_DIRECTORY_INSTALL_PERMISSIONS variable.

Fixes #17333

# Conflicts:
#	Help/release/dev/cmake-default-dir-install-permissions.rst

Introduces CMAKE_DEFAULT_DIRECTORY_INSTALL_PERMISSIONS
variable which enables the user to specify the default
permissions for directory creation. This setting is then
used to auto set the permissions on directories which
are implicitly created by install() and file(INSTALL)
commands such as CMAKE_INSTALL_PREFIX directories.