> Simon Marlow wrote:
> > [...] Add support for gcc-style "make bootstrap" which
> will build the
> > stage 1, 2 and 3 compilers in the same build tree. [...]
>
> Hmmm, I just ran into something counterintuitive:
>
> make bootstrap
> make install
>
> didn't yield an interactive version of GHC. After a quick look into
> fptools/ghc/compiler/Makefile things became clear: The stage1 version
> was installed, so the correct incantation would have been:
>
> make bootstrap
> make stage=2 install
>
> Is this intended? If yes, is this documented somewhere...? :-]
I mentioned at the end of the commit message that I hadn't decided what
to do about 'make install' yet ;-)
Some options are:
- leave it as it is; you can say 'make stage=N install' to
install the desired stage, otherwise you get stage 1. This
is a bit of a hack.
- if stage1 is bootstrapped, then install that, otherwise require
and install stage2.
- always build & install stage2
- select via a configure option or build.mk how many stages to
build/install
- ...any other ideas?
I'd welcome feedback on this one, it's not at all clear to me what to
do. The gcc crowd don't seem to mind doing a 3-stage bootstrap every
time, but then it doesn't take an hour or so for each stage.
Cheers,
Simon
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