6 The ObjC++ standard whose features are requested to build this target.
8 This property specifies the ObjC++ standard whose features are requested
9 to build this target. For some compilers, this results in adding a
10 flag such as ``-std=gnu++11`` to the compile line.
30 .. versionadded:: 3.20
35 .. versionadded:: 3.25
37 Objective C++26. CMake 3.25 and later *recognize* ``26`` as a valid value,
38 no version has support for any compiler.
40 If the value requested does not result in a compile flag being added for
41 the compiler in use, a previous standard flag will be added instead. This
46 set_property(TARGET tgt PROPERTY OBJCXX_STANDARD 11)
48 with a compiler which does not support ``-std=gnu++11`` or an equivalent
49 flag will not result in an error or warning, but will instead add the
50 ``-std=gnu++98`` flag if supported. This "decay" behavior may be controlled
51 with the :prop_tgt:`OBJCXX_STANDARD_REQUIRED` target property.
52 Additionally, the :prop_tgt:`OBJCXX_EXTENSIONS` target property may be used to
53 control whether compiler-specific extensions are enabled on a per-target basis.
55 If the property is not set, and the project has set the :prop_tgt:`CXX_STANDARD`,
56 the value of :prop_tgt:`CXX_STANDARD` is set for :prop_tgt:`OBJCXX_STANDARD`.
58 See the :manual:`cmake-compile-features(7)` manual for information on
59 compile features and a list of supported compilers.
61 This property is initialized by the value of
62 the :variable:`CMAKE_OBJCXX_STANDARD` variable if it is set when a target