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|
#!/usr/bin/perl
#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 2011-2015, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at http://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
#
# Experience has shown that the symbols-in-versions file is very useful to
# applications that want to build with a wide range of libcurl versions.
# It is however easy to get it wrong and the source gets a bit messy with all
# the fixed numerical comparisons.
#
# The point of this script is to provide an easy-to-use macro for libcurl-
# using applications to do preprocessor checks for specific libcurl defines,
# and yet make the code clearly show what the macro is used for.
#
# Run this script and generate curl/has.h and then use that header in
# a fashion similar to:
#
# #include <curl/has.h>
#
# #if CURL_HAS(CURLOPT_MUTE)
# has mute
# #else
# no mute
# #endif
#
#
sub str2num {
my ($str)=@_;
if($str =~ /([0-9]*)\.([0-9]*)\.*([0-9]*)/) {
return sprintf("0x%06x", $1<<16 | $2 << 8 | $3);
}
}
print <<EOS
#ifndef __CURL_HAS_H
#define __CURL_HAS_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \\| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \\___|\\___/|_| \\_\\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* This file is generated. Do not edit by hand. Edit
* docs/libcurl/symbols-in-versions and regenerate this with has.pl
*/
#include <curl/curlver.h>
/*
* #include <curl/has.h>
*
* #if CURL_HAS(CURLOPT_MUTE)
* use_mute();
* #else
* without_mute();
* #endif
*/
#define CURL_HAS_IN(x,y) \\
(defined(CURLHAS_ ## x ) && (CURLHAS_ ## x <= y) && \\
(!defined(CURLHAS_ ## x ## _L) || ( CURLHAS_ ## x ## _L >= y)))
#define CURL_HAS(x) CURL_HAS_IN(x, LIBCURL_VERSION_NUM)
EOS
;
while(<STDIN>) {
if(/^(CURL[^ ]*)[ \t]*(.*)/) {
my ($sym, $vers)=($1, $2);
my $intr;
my $rm;
my $dep;
# is there removed info?
if($vers =~ /([\d.]+)[ \t-]+([\d.-]+)[ \t]+([\d.]+)/) {
($intr, $dep, $rm)=($1, $2, $3);
}
# is it a dep-only line?
elsif($vers =~ /([\d.]+)[ \t-]+([\d.]+)/) {
($intr, $dep)=($1, $2);
}
else {
$intr = $vers;
}
my $inum = str2num($intr);
print <<EOS
#define CURLHAS_${sym} $inum /* $intr */
EOS
;
my $irm = str2num($rm);
if($rm) {
print <<EOS
#define CURLHAS_${sym}_L $irm /* Last $rm */
EOS
;
}
}
}
print <<EOS
#endif /* __CURL_HAS_H */
EOS
;
|
