On 19/12/2007, at 9:00 PM, Malcolm Wallace wrote:
In the case of HaXml use the 1.13.3 version was updated to use the
new
split base libs but not to use configurations so it would also build
with ghc-6.6. Hopefully we can persuade Malcolm to upload a .4 that
uses configurations and works with both.
I have actually tried to use configurations for HaXml's cabal file,
but
I'm a bit stuck. I don't know what the library dependencies for
various
older versions of ghc are, and I don't know how to find out, short of
installing several versions of ghc, upgrading their Cabal to 1.2, and
guessing dependencies until it builds.
Got any good hints?
I don't, but I believe Bjorn does. Here's some stuff from Hope that
might help.
Flag bytestring-in-base
Flag split-base
Library
Build-depends:
if flag(bytestring-in-base)
-- bytestring was in base-2.0 and 2.1.1
Build-depends: base >= 2.0 && < 2.2
else
-- in base 1.0 and 3.0 bytestring is a separate package
Build-depends: base < 2.0 || >= 3, bytestring >= 0.9
if flag(split-base)
Build-depends: base >= 3.0, containers, random, directory, old-
time, old-locale
else
Build-depends: base < 3.0
Exposed-Modules:
<same old>
Other-modules:
<same old>
Ghc-options: <same old>
If you try it out under whatever GHC you've got, I'll try it out under
a fairly vanilla GHC 6.6.1 and the latest Cabal. I think everything
you depend on (except polyparse, what's that?) is in the old "base". I
will repair it if not.
cheers
peter
