Re: [Gtk2hs-users] Gtk2Hs Linker Errors, Simple Window from Tutorial.

[Donnie J. <do...@da...>]

Hello Bertram,

I filed a bug report for GHC 6.11.x since GHC should print an error message
and exit if GHC is compiled without support for split objects and the
-split-objs argument is given to GHC.

http://hackage.haskell.org/trac/ghc/ticket/2832#preview

Thank you all for your help, it is very very much appreciated.
__
Donnie Jones

On Mon, Dec 1, 2008 at 1:48 PM, Bertram Felgenhauer <
ber...@go...> wrote:

> Axel Simon wrote:
> > On Mon, 2008-12-01 at 08:38 -0500, Donnie Jones wrote:
> [snip]
> > Something is going wrong during the build. Sometimes one of the tools
> > encounters an error but 'make' does not stop. The build then continues
> > and in this case it seems like a library is built and everything seems
> > fine. Maybe you could check for error messages during the build (there
> > will be some warnings about duplicate macro definitions of
> > GTK_CHECK_VERSION and similar, these are ok).
> >
> > Have you disabled split-objs when configuring? Enabling this sometimes
> > leads to problems.
>
> We discussed this on #ghc. There were two surprises:
>
> - Donnie's ghc was built using fast settings (setting SplitObjs = NO),
>  which - that's the surprise - has the effect of disabling the
>  -split-objs option in ghc.
>
> - split-objs is enabled by default in gtk2hs. (this surprised Duncan at
>  least)
>
> So in effect, -split-objs was enabled, and the option got passed to ghc,
> but the compiler ignored the flag. As a result, link-splitobjs.sh could
> not find the objects.
>
>
> To fix this for ghc 6.8 or later, we can check whether ghc --info
> prints a line saying
>
>  ,("Object splitting","YES")
>
> and disable split-objs if not.
>
> Alternatively, link-splitobjs.sh could pick up the Foo.o file if the
> Foo_split directory turns out to be empty.
>
> Bertram
>
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