During install, network's Typeable.h clobbers base's copy

[bos]

There are two copies of Typeable.h in a fully populated GHC tree. The copy in libraries/network/include is a cut-down version of the copy from libraries/base/include.

Unfortunately, the network copy overwrites the base copy when GHC is installed. Since the network version defines INSTANCE_TYPEABLE0 but not [123], anything that rquires one of the other definitions is going to break.

This affects hs-plugins, for example; I can't build it, because on my Fedora box, it's getting network's copy of Typeable.h.

It seems that a correct approach would be to drop the less-capable duplicate from the network tree.

[bos]

By the way, Jens and I have tested dropping network's Typeable.h, and everything seems OK. Your mileage may vary, of course.

[simonmar]

Fixed. To merge:

Thu Feb  1 12:58:21 GMT 2007  Simon Marlow <simonmar@microsoft.com>
  * don't install Typeable.h, fixes #1106

[igloo]

network is an extralib, so no merging to be done.