On Sun, Aug 23, 2020, 10:13 Mike via Boost
<...> I think the real problem is that - due to the structural differences it may not be possible to conditionally turn a header file into a module interface unit just with a bunch of #ifdefs in a convenient manner, and even if you could, code using boost modules could not coexist with code using boost headers.
I think that it is solvable. In each header put something like that in the
beginning:
#if defined(__cpp_modules) && !defined(BOOST_VARIANT_BUILD_MODULE)
import boost.variant
#else
// include guards
#ifndef BOOST_VARIANT_HPP
#define BOOST_VARIANT_HPP
#endif
#endif
Now `import boost.variant;` and `#include