summaryrefslogtreecommitdiffstats
path: root/Help/release/dev/compile-language-features.rst
blob: d10e22ba33daacbc4e2a68bc02b9a3c78f017103 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
target-language-features
------------------------

* New :prop_tgt:`CXX_STANDARD` and :prop_tgt:`CXX_EXTENSIONS` target
  properties may specify values which CMake uses to compute required
  compile options such as ``-std=c++11`` or ``-std=gnu++11``. The
  :variable:`CMAKE_CXX_STANDARD` and :variable:`CMAKE_CXX_EXTENSIONS`
  variables may be set to initialize the target properties.

* New :prop_tgt:`C_STANDARD` and :prop_tgt:`C_EXTENSIONS` target
  properties may specify values which CMake uses to compute required
  compile options such as ``-std=c11`` or ``-std=gnu11``. The
  :variable:`CMAKE_C_STANDARD` and :variable:`CMAKE_C_EXTENSIONS`
  variables may be set to initialize the target properties.

* New :prop_tgt:`COMPILE_FEATURES` target property may contain a list
  of features required to compile a target.  CMake uses this
  information to ensure that the compiler in use is capable of building
  the target, and to add any necessary compile flags to support language
  features.

* New :command:`target_compile_features` command allows populating the
  :prop_tgt:`COMPILE_FEATURES` target property, just like any other
  build variable.

* New ``COMPILE_FEATURES``
  :manual:`generator expression <cmake-generator-expressions(7)>` allows
  setting build properties based on available compiler features.