Borland's $(MAKEDIR) expands to the path where make.exe is located,
use this feature to define BCCDIR when user has not defined BCCDIR.

if add2list() returns an error, bail out!

Default libcurl's file names are kept equal to those used since Y2K.

Instead of reopening the downloaded file, fsetxattr uses the (already
open) file descriptor to attach extended attributes. This makes the
procedure more robust against errors caused by moved or deleted files.

CURLOPT_RESOLVE is a new option that sends along a curl_slist with
name:port:address sets that will populate the DNS cache with entries so
that request can be "fooled" to use another host than what otherwise
would've been used. Previously we've encouraged the use of Host: for
that when dealing with HTTP, but this new feature has the added bonus
that it allows the name from the URL to be used for TLS SNI and server
certificate name checks as well.

This is a first change. Surely more will follow to make it decent.

Removed the code that was needed for libcurl before 7.19.0 which now is
more than two years old.

Simplified the top comment and corrected the URL.

setxattr is a glibc call to set extended attributes, so configure now
checks for it and the code is adapted to only build when the
functionality is present.

It is often convinient to track back the source of a once downloaded
file; this patch makes curl store the source URL and other metadata
alongside the retrieved file by using the extended attributes (if
supported by the file system and enabled by --xattr).

These haven't worked in at least 8 years due to missing source
files, and most active RiscOS developers these days apparently
cross-compile anyway.

Signed-off-by: James Bursa <james@zamez.org>

Some options, such as the automatic decompression and some SSL related
ones now will bail out if the underlying libcurl doesn't have support
for the particular feature needed.

If the filename contains a backslash, only use filename portion. The
idea is that even systems that don't handle backslashes as path
separators probably want that path removed for convenience.

This flaw is considered a security problem, see the curl security
vulnerability http://curl.haxx.se/docs/adv_20101013.html

This is similar to how it's done in the lib directory.
The Amiga build appears to have been broken for a year because
of a missing homedir.c

Having an open brace without a closing brace caused a segfault.

Having a closing brace too many caused a silent error to occur, which
caused curl to bail out and return an error code but no error message
was shown. It does now!

All error message outputs no longer wrongly get _two_ newlines written
after the error message.

Reported by: Vlad Ureche
Bug: http://curl.haxx.se/bug/view.cgi?id=3083942

Renamed SDK_* to NDK_*; made NDK_* defines overwriteable from
environment; removed now obsolete YACC macro;
moved some curl_config.h defines to IPv6 section since they
are only needed when IPv6 is enabled - this makes libcurl compile
with older NDKs too which were not IPv6-aware.

if ( => if(
while ( => while(

and some other changes in the similar spirit, trying to make the
whole file use the same style