attempt in generated config.h

Moved *_CHECK_COMPILER_HALT_ON_ERROR and *_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE to *-compilers.m4 along with other *_CHECK_COMPILER_*

  reported in the Debian package.

  (http://curl.haxx.se/bug/view.cgi?id=2723236) identifying a problem with
  libcurl's TFTP code and its lack of dealing with the OACK packet.

This will be removed in 24 or 48 hours.

The origin of the problem with test case #251 was the --ftp-port not being the CLIENTIP address.

one and store the current one, as it makes the code less complex and I'm not
even sure I can check for the same session id using memcmp() like that.

  corresponding fix in the GnuTLS code: make sure to store the new session id
  in case the re-used one is rejected.

  (http://curl.haxx.se/bug/view.cgi?id=2786255) with a patch, identifying how
  libcurl did not deal with SSL session ids properly if the server rejected a
  re-use of one. Starting now, it will forget the rejected one and remember
  the new. This change was for OpenSSL only, it is likely that other SSL lib
  code needs similar fixes.

David McCreedy's patch to fix test suite harness to allow test FTP server and client on different machines, providing FTP client address when running the FTP test server.

David McCreedy's "transfer.c fixes for CURL_DO_LINEEND_CONV and non-ASCII platform HTTP requests" patch

report failed to mention that a proxy must be used to reproduce it.

So, until fixed this will remain FIXME.