'curl -v writes debugging to its network socket if stderr is closed'

executed" warning by gcc 3.4.0

Change OS name. Fix header guard.

Un-do changes for WinCE; cdecl decoration is not needed.
Confirmed by Paul Nolan.

in the build, since libidn 0.3.X didn't have the header and we don't support
that old libidn versions anyway.

This was mentioned on the list by Jean-Philippe Barrette-LaPierre and in bug
report #1062264.

pkg-config on the build host in order to detect OpenSSL compiler options.

Fixed _write() arguments.

file that was already completely downloaded caused an error, while it
doesn't if you don't use --fail! I added test case 194 to verify the fix.
Grrr. CURLOPT_FAILONERROR is now added to the list stuff to remove in
libcurl v8 due to all the kludges needed to support it.

is used at times but it doesn't decrease the array size

good. I fixed.

properly set, and the Makefile.am is now fixed to use that when building
a new package with make dist.