patch applied (ghc): Explicitly set "docdir" when calling make, configure's --docdir seems to be ignored

[Judah Jacobson]

On 9/2/07, Sven Panne <Sven.Panne at aedion.de> wrote:
>   * Explicitly set "docdir" when calling make, configure's --docdir seems to be ignored
>
>     M ./ghc.spec.in -4 +2
>


I've actually been looking at that problem (in an effort to learn more
about ghc's make system), and I think I tracked down the cause of this
issue.  In config.mk.in, there is

> prefix			= @prefix@
> datarootdir		= @datarootdir@
> exec_prefix		= @exec_prefix@
> bindir			= @bindir@
(etc.)

and later:

> docdir    = $(datarootdir)/doc/ghc
> htmldir   = $(docdir)
> dvidir    = $(docdir)
> pdfdir    = $(docdir)
> psdir     = $(docdir)

But the variable "datarootdir" appears nowhere else in the ghc tree,
so it's set to "@datarootdir@" when config.mk.in is turned into
config.mk.  (In contrast, variables like exec_prefix, bindir etc. are
set externally to config.mk.in, and config.mk.in also gives them
defaults if they're empty.)

That's my assessment as a newcomer to the make system; I'm not sure
what the right fix would be (probably either setting or removing the
datarootdir variable, I guess).

Best,
-Judah