Don't shoot the messenger. Reverted the previous 'silent treatment' patch,

Don't shoot the messenger.  Reverted the previous 'silent treatment' patch,
users should be informed of things that go wrong, when they go wrong, without
having to figure out what cold silence means in that context from other clues.

If broken configure scripts perform unnecessary tests, or clever ones want
to perform them silently, then they should redirect stderr to /dev/null like
all other well behaved tools might.

Fixed bug diagnosed by Fritz Elfert where an explicit --host specification to
configure was not properly ignored for native builds.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@30406 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775