Q_COMPILER_CONSTEXPR can be undefined (or not defined at all) to
indicate that constexpr should not be used regardless of the compiler's
ability to support it. This is done for QNX because some C library
floating point functions used in the Dinkumware C++ library aren't
constexpr functions; i.e., the library doesn't have proper constexpr
support even though the compiler does.
Change-Id: I16918bbceac1e20b67c6ddbda28df3d9758bab83
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
d87242968f