Problems building docs

[Joseph Rushton Wakeling]

Hello all,

I'm having problems building the docs.  I've got the latest
d-programming-language.org checked out, and have tried to build with make -f
posix.mak.

The basic html part builds fine, but it falls over when trying to build
phobos-prerelease with the error:

    make --directory=../phobos -f posix.mak \
	DOC_OUTPUT_DIR=~/code/D/d-programming-language.org/web/phobos-prerelease html -j 4
    make[1]: Entering directory `~/code/D/phobos'
    make[1]: *** No rule to make target
`~/code/D/d-programming-language.org/web/phobos-prerelease/index.html', needed
by `html'.  Stop.
    make[1]: Leaving directory `~/code/D/phobos'
    make: ***
[~/code/D/d-programming-language.org/web/phobos-prerelease/index.html] Error 2

Can anyone advise?  Or is it just a bug in the makefile?

Thanks & best wishes,

    -- Joe