Add TDE_CXX_COMPILE_STDCXX macro to check and enforce C++ standard.

The macro is a simplified form of AX_CXX_COMPILE_STDCXX from autoconf.
To verify the C++ standard supported by the compiler, only the value
of the __cplusplus constant defined by the compiler is checked,
instead of testing examples of using individual C++ features.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit b9fb6ca397bdded4d891b42eccb09f37279761a5)

0 files changed, 0 insertions, 0 deletions