xref: /curl/scripts/cmp-config.pl (revision 2cd78f52) 
1#!/usr/bin/env perl
2#***************************************************************************
3#                                  _   _ ____  _
4#  Project                     ___| | | |  _ \| |
5#                             / __| | | | |_) | |
6#                            | (__| |_| |  _ <| |___
7#                             \___|\___/|_| \_\_____|
8#
9# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
10#
11# This software is licensed as described in the file COPYING, which
12# you should have received as part of this distribution. The terms
13# are also available at https://curl.se/docs/copyright.html.
14#
15# You may opt to use, copy, modify, merge, publish, distribute and/or sell
16# copies of the Software, and permit persons to whom the Software is
17# furnished to do so, under the terms of the COPYING file.
18#
19# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
20# KIND, either express or implied.
21#
22# SPDX-License-Identifier: curl
23#
24###########################################################################
25
26my $autotools = $ARGV[0];
27my $cmake = $ARGV[1];
28
29if(!$cmake) {
30    print "Usage: cmp-config <config1> <config2.h>\n";
31    exit;
32}
33
34# this lists complete lines that will be removed from the output if
35# matching
36my %remove = (
37    '#define _FILE_OFFSET_BITS 64' => 1,
38    '#define CURL_EXTERN_SYMBOL' => 1,
39    '#define CURL_SA_FAMILY_T sa_family_t' => 1,
40    '#define GETHOSTNAME_TYPE_ARG2 size_t' => 1,
41    '#define HAVE_BROTLI 1' => 1,
42    '#define HAVE_BROTLI_DECODE_H 1' => 1,
43    '#define HAVE_DECL_GETPWUID_R 1' => 1,
44    '#define HAVE_DLFCN_H 1' => 1,
45    '#define HAVE_GETHOSTBYNAME 1' => 1,
46    '#define HAVE_INTTYPES_H 1' => 1,
47    '#define HAVE_IOCTL 1' => 1,
48    '#define HAVE_LDAP_SSL 1' => 1,
49    '#define HAVE_LIBBROTLIDEC 1' => 1,
50    '#define HAVE_LIBSSL 1' => 1,
51    '#define HAVE_LIBZSTD 1' => 1,
52    '#define HAVE_OPENSSL3 1' => 1,
53    '#define HAVE_OPENSSL_CRYPTO_H 1' => 1,
54    '#define HAVE_OPENSSL_ERR_H 1' => 1,
55    '#define HAVE_OPENSSL_PEM_H 1' => 1,
56    '#define HAVE_OPENSSL_RSA_H 1' => 1,
57    '#define HAVE_OPENSSL_SSL_H 1' => 1,
58    '#define HAVE_OPENSSL_X509_H 1' => 1,
59    '#define HAVE_SA_FAMILY_T 1' => 1,
60    '#define HAVE_SETJMP_H 1' => 1,
61    '#define HAVE_STDINT_H 1' => 1,
62    '#define HAVE_STDIO_H 1' => 1,
63    '#define HAVE_STDLIB_H 1' => 1,
64    '#define HAVE_STRING_H 1' => 1,
65    '#define HAVE_SYS_XATTR_H 1' => 1,
66    '#define HAVE_ZSTD 1' => 1,
67    '#define HAVE_ZSTD_H 1' => 1,
68    '#define LT_OBJDIR ".libs/"' => 1,
69    '#define OS "Linux"' => 1,
70    '#define OS "x86_64-pc-linux-gnu"' => 1,
71    '#define PACKAGE "curl"' => 1,
72    '#define PACKAGE_BUGREPORT "a suitable curl mailing list: https://curl.se/mail/"' => 1,
73    '#define PACKAGE_NAME "curl"' => 1,
74    '#define PACKAGE_STRING "curl -"' => 1,
75    '#define PACKAGE_TARNAME "curl"' => 1,
76    '#define PACKAGE_URL ""' => 1,
77    '#define PACKAGE_VERSION "-"' => 1,
78    '#define SIZEOF_LONG_LONG 8' => 1,
79    '#define USE_MANUAL 1' => 1,
80    '#define VERSION "-"' => 1,
81    );
82
83sub filter {
84    my ($line) = @_;
85    if(!$remove{$line}) {
86        return "$line\n";
87    }
88    $remove{$line}++;
89    return "";
90}
91
92sub grepit {
93    my ($input, $output) = @_;
94    my @defines;
95    # first get all the #define lines
96    open(F, "<$input");
97    while(<F>) {
98        if($_ =~ /^#def/) {
99            chomp;
100            push @defines, $_;
101        }
102    }
103    close(F);
104
105    open(O, ">$output");
106
107    # output the sorted list through the filter
108    foreach my $d(sort @defines) {
109        print O filter($d);
110    }
111    close(O);
112}
113
114grepit($autotools, "/tmp/autotools");
115grepit($cmake, "/tmp/cmake");
116
117foreach my $v (keys %remove) {
118    if($remove{$v} == 1) {
119        print "Ignored, never matched line: $v\n";
120    }
121}
122
123
124# return the exit code from diff
125exit system("diff -u /tmp/autotools /tmp/cmake") >> 8;
126