On Thursday, 24 August 2017 at 18:56:25 UTC, Walter Bright wrote:
There is a PR to make it only on demand,
but it is mired in problems that are not in the D test suite
and for which no test cases exist.
C++ compilers also have a switch, like -fno-rtti, for
de-activating RTTI. BetterC seems like a combination of several
pieces of underlying functionality. There is not yet any ability
to have any kind of granularity. For instance,
where [flag] might be something like "off-dassert" which calls
the C assert function instead of the D one.