New in version 3.16.
Boolean specifying whether compiler specific extensions are requested.
This property specifies whether compiler specific extensions should be
used. For some compilers, this results in adding a flag such
-std=gnu++11 instead of
-std=c++11 to the compile line. This
ON by default. The basic ObjC++ standard level is
controlled by the
OBJCXX_STANDARD target property.
cmake-compile-features(7) manual for information on
compile features and a list of supported compilers.
If the property is not set, and the project has set the
the value of
CXX_EXTENSIONS is set for
This property is initialized by the value of
CMAKE_OBJCXX_EXTENSIONS variable if set when a target is
created and otherwise by the value of