Multiple test failures with --disable-shared

[Peter O'Gorman]

Hi,

I got an off-list report from a user about test failures in 2.2.6b, that 
turned out to be either because he'd configured with --disable-shared or 
libtool had incorrectly guessed that his system did not support shared 
libraries. (lots of lag in the exchange).

Either way, we should probably add:
  and `make distcheck DISTCHECK_CONFIGURE_FLAGS=--disable-shared'

to the release procedure in HACKING and fix these failures.

I will look into it after cleaning my tree (not sure if some of these 
failures are due to local changes).

Peter