[m-rev.] diff: disable mfilterjavac by default

[Paul Bone]

On Tue, Oct 15, 2013 at 05:48:50PM +1100, Julien Fischer wrote:
> 
> All subsequent rotds have disabled mfilterjavac, you will need to generate
> one with it enabled.
> 

Okay, I can generate an ROTD, but then when I use it, without Mercury in my
path...

> (1) Build stage 1 using rotd-2013-04-18
> (2) Bootcheck (or otherwise build the stage 2 compiler).
> (3) cd stage2 && mmake install (with the java grade as one of the
>     grades to install).

I cannot run the bootcheck script, it expects mmake to be in the path but
it's not because I don't have a Mercury installation in my path.

So I commented out an "exit 1" in scripts/bootcheck and tried again.  This
time it gets as far as building the library, at which point it reports it
cannot find mmc, even though it used mmc in the previous step (generating
dependency information).

So I thought, maybe there's a problem with how buildcheck works and if I
just run 'make' it will work.  So in stage2 I ran make, and there's no
Makefile here.  I copied the one from the root of the tree and tried, it
still can't find mmc.

Are these really the steps you used to reproduce this problem?  I'm having
trouble accepting that they worked at all before I introduced mfilterjavac.
I'm also concerned that since it can't find mmc when I have none in my path,
that it isn't using the stage1 mmc to build stage2 which is a problem for
bootchecking in general.

Thanks.


-- 
Paul Bone
http://www.bone.id.au