I have just moved to Windows 8.1 64bit. I copied the dmd compiler
and environment I was using on the 32 bit XP and hooked up the
environmental variables to see what would happen. When I come to
compile and run one of the Derelict3 programs it compiles and
runs ok (mouse isn't doing what it should but haven't looked into
why yet). The SDL2 dlls, including the ttf and image dlls are
from the 32 bit environment and they seem to be working (window,
text and images at least) on the 64 bit os. I am just trying to
get my head around this.
I would assume, and please tell me if I am wrong as that is the
point of the post, that any D code will compile on any dmd
compiler irrespective of whether 32 or 64 bit. But I would have
thought the object files compiled would be different, assuming
that the compiler knowing its environment stipulates in the
object files what the linker needs to do. Or am I wrong on this,
and that the object files will be identical but the linker sc.ini
defines will make the difference. If this last is true there
would be no need for something like the gcc -m32 flag as that
would be handled by the linker chosen. If it is not true then is
there a dmd flag to demand that the exe be 32 bit compatible?
Also, what is the deal with using dlls from a 32bit system on a
64bit os; is this just backwards compatibility?
Any help or helpful links appreciated.
