I'm trying to do the same, trying to compile OS free code but I
haven't so far been successful because D requires the runtime and
then also Phobos. Compared to C/C++ where you can create pretty
advanced stand alone code without even include any standard
libraries, this because much of C++ is part of the compiler.
With D this is not the case. I don't really have a good picture
what is part of the compiler or the runtime. Even creating a
simple sample class and create a stack object requires that I
include *everything*, that hairy runtime phobos nest. The runtime
also has dependencies into Phobos which I find to be very
inconvenient and I don't think it is a good idea. The runtime
should be stand alone and Phobos should depended on the runtime
and not vice versa.
Also, I am not too happy about the change "scope for allocating
classes on the stack",
http://dlang.org/deprecate.html#scope%20for%20allocating%20classes%20on%20the%20stack.
This change requires you to include std.typecons from Phobos,
which means you have include a library for a simple operation
like stack allocation. C++ does not require this as it is a part
of the language.
Compared to C/C++, D is very hard to get to work in the
embedded/OS less environment because of this.
