Starting D with a project in mind.

[Andrew]

I'm a very happy man ! Everything is built and working including 
dub and the http_server example from vibe.d.

It's slow to build, but it executes quickly and strips down to 
about 3MB which is heavy but tolerable.

Thanks to everybody for the help, now I can start learning D, 
exploring vibe.d and Pegged and hopefully make some good progress 
on my MUD.

So to recap, to help anybody else building on ARM these are the 
steps I took :-

mkdir gdc
cd gdc
wget 
http://gcc.igor.onlinedirect.bg/snapshots/LATEST-4.8/gcc-4.8-20131010.tar.bz2
tar xvf gcc-4.8-20131010.tar.bz2
git clone https://github.com/jpf91/GDC.git arm_gdc
cd arm_gdc
git checkout arm
./setup-gcc.sh ../gcc-4.8-20131010
cd ../
mkdir build
cd build
export C_INCLUDE_PATH=/usr/include/$(gcc -print-multiarch)
export EXTRA_CONF="-mfloat-abi=hard --with-float=hard"
../gcc-4.8-20131010/configure --enable-languages=d 
--disable-bootstrap --prefix=/usr/local/gdc --disable-multilib 
--disable-softfloat --with-float=hard
make -j2
sudo make install
sudo cp ../arm_gdc/libphobos/libdruntime/core/time.d 
/usr/local/gdc/include/d/4.8.2/armv7l-unknown-linux-gnueabihf/core
sudo mv 
/usr/local/gdc/include/d/4.8.2/armv7l-unknown-linux-gnueabihf/core/time.di 
/usr/local/gdc/include/d/4.8.2/armv7l-unknown-linux-gnueabihf/core/time.di.old

I don't know why that last step was necessary but dub and a few 
other things didn't build without it.

After that dub built fine once I'd hacked the build file to use 
gdc.