xref: /freebsd/crypto/openssl/Configure (revision b7d75bb75cbcaee0015f024bef3476cd5710ba03) 
1#! /usr/bin/env perl
2# -*- mode: perl; -*-
3# Copyright 2016-2019 The OpenSSL Project Authors. All Rights Reserved.
4#
5# Licensed under the OpenSSL license (the "License").  You may not use
6# this file except in compliance with the License.  You can obtain a copy
7# in the file LICENSE in the source distribution or at
8# https://www.openssl.org/source/license.html
9
10##  Configure -- OpenSSL source tree configuration script
11
12use 5.10.0;
13use strict;
14use Config;
15use FindBin;
16use lib "$FindBin::Bin/util/perl";
17use File::Basename;
18use File::Spec::Functions qw/:DEFAULT abs2rel rel2abs/;
19use File::Path qw/mkpath/;
20use OpenSSL::Glob;
21
22# see INSTALL for instructions.
23
24my $orig_death_handler = $SIG{__DIE__};
25$SIG{__DIE__} = \&death_handler;
26
27my $usage="Usage: Configure [no-<cipher> ...] [enable-<cipher> ...] [-Dxxx] [-lxxx] [-Lxxx] [-fxxx] [-Kxxx] [no-hw-xxx|no-hw] [[no-]threads] [[no-]shared] [[no-]zlib|zlib-dynamic] [no-asm] [no-dso] [no-egd] [sctp] [386] [--prefix=DIR] [--openssldir=OPENSSLDIR] [--with-xxx[=vvv]] [--config=FILE] os/compiler[:flags]\n";
28
29# Options:
30#
31# --config      add the given configuration file, which will be read after
32#               any "Configurations*" files that are found in the same
33#               directory as this script.
34# --prefix      prefix for the OpenSSL installation, which includes the
35#               directories bin, lib, include, share/man, share/doc/openssl
36#               This becomes the value of INSTALLTOP in Makefile
37#               (Default: /usr/local)
38# --openssldir  OpenSSL data area, such as openssl.cnf, certificates and keys.
39#               If it's a relative directory, it will be added on the directory
40#               given with --prefix.
41#               This becomes the value of OPENSSLDIR in Makefile and in C.
42#               (Default: PREFIX/ssl)
43#
44# --cross-compile-prefix Add specified prefix to binutils components.
45#
46# --api         One of 0.9.8, 1.0.0 or 1.1.0.  Do not compile support for
47#               interfaces deprecated as of the specified OpenSSL version.
48#
49# no-hw-xxx     do not compile support for specific crypto hardware.
50#               Generic OpenSSL-style methods relating to this support
51#               are always compiled but return NULL if the hardware
52#               support isn't compiled.
53# no-hw         do not compile support for any crypto hardware.
54# [no-]threads  [don't] try to create a library that is suitable for
55#               multithreaded applications (default is "threads" if we
56#               know how to do it)
57# [no-]shared	[don't] try to create shared libraries when supported.
58# [no-]pic      [don't] try to build position independent code when supported.
59#               If disabled, it also disables shared and dynamic-engine.
60# no-asm        do not use assembler
61# no-dso        do not compile in any native shared-library methods. This
62#               will ensure that all methods just return NULL.
63# no-egd        do not compile support for the entropy-gathering daemon APIs
64# [no-]zlib     [don't] compile support for zlib compression.
65# zlib-dynamic	Like "zlib", but the zlib library is expected to be a shared
66#		library and will be loaded in run-time by the OpenSSL library.
67# sctp          include SCTP support
68# enable-weak-ssl-ciphers
69#               Enable weak ciphers that are disabled by default.
70# 386           generate 80386 code in assembly modules
71# no-sse2       disables IA-32 SSE2 code in assembly modules, the above
72#               mentioned '386' option implies this one
73# no-<cipher>   build without specified algorithm (rsa, idea, rc5, ...)
74# -<xxx> +<xxx> compiler options are passed through
75# -static       while -static is also a pass-through compiler option (and
76#               as such is limited to environments where it's actually
77#               meaningful), it triggers a number configuration options,
78#               namely no-dso, no-pic, no-shared and no-threads. It is
79#               argued that the only reason to produce statically linked
80#               binaries (and in context it means executables linked with
81#               -static flag, and not just executables linked with static
82#               libcrypto.a) is to eliminate dependency on specific run-time,
83#               a.k.a. libc version. The mentioned config options are meant
84#               to achieve just that. Unfortunately on Linux it's impossible
85#               to eliminate the dependency completely for openssl executable
86#               because of getaddrinfo and gethostbyname calls, which can
87#               invoke dynamically loadable library facility anyway to meet
88#               the lookup requests. For this reason on Linux statically
89#               linked openssl executable has rather debugging value than
90#               production quality.
91#
92# DEBUG_SAFESTACK use type-safe stacks to enforce type-safety on stack items
93#		provided to stack calls. Generates unique stack functions for
94#		each possible stack type.
95# BN_LLONG	use the type 'long long' in crypto/bn/bn.h
96# RC4_CHAR	use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
97# Following are set automatically by this script
98#
99# MD5_ASM	use some extra md5 assembler,
100# SHA1_ASM	use some extra sha1 assembler, must define L_ENDIAN for x86
101# RMD160_ASM	use some extra ripemd160 assembler,
102# SHA256_ASM	sha256_block is implemented in assembler
103# SHA512_ASM	sha512_block is implemented in assembler
104# AES_ASM	AES_[en|de]crypt is implemented in assembler
105
106# Minimum warning options... any contributions to OpenSSL should at least get
107# past these.
108
109# DEBUG_UNUSED enables __owur (warn unused result) checks.
110# -DPEDANTIC complements -pedantic and is meant to mask code that
111# is not strictly standard-compliant and/or implementation-specific,
112# e.g. inline assembly, disregards to alignment requirements, such
113# that -pedantic would complain about. Incidentally -DPEDANTIC has
114# to be used even in sanitized builds, because sanitizer too is
115# supposed to and does take notice of non-standard behaviour. Then
116# -pedantic with pre-C9x compiler would also complain about 'long
117# long' not being supported. As 64-bit algorithms are common now,
118# it grew impossible to resolve this without sizeable additional
119# code, so we just tell compiler to be pedantic about everything
120# but 'long long' type.
121
122my $gcc_devteam_warn = "-DDEBUG_UNUSED"
123        . " -DPEDANTIC -pedantic -Wno-long-long"
124        . " -Wall"
125        . " -Wextra"
126        . " -Wno-unused-parameter"
127        . " -Wno-missing-field-initializers"
128        . " -Wswitch"
129        . " -Wsign-compare"
130        . " -Wmissing-prototypes"
131        . " -Wstrict-prototypes"
132        . " -Wshadow"
133        . " -Wformat"
134        . " -Wtype-limits"
135        . " -Wundef"
136        . " -Werror"
137        ;
138
139# These are used in addition to $gcc_devteam_warn when the compiler is clang.
140# TODO(openssl-team): fix problems and investigate if (at least) the
141# following warnings can also be enabled:
142#       -Wcast-align
143#       -Wunreachable-code -- no, too ugly/compiler-specific
144#       -Wlanguage-extension-token -- no, we use asm()
145#       -Wunused-macros -- no, too tricky for BN and _XOPEN_SOURCE etc
146#       -Wextended-offsetof -- no, needed in CMS ASN1 code
147#       -Wunused-function -- no, it forces header use of safestack et al
148#                            DEFINE macros
149my $clang_devteam_warn = ""
150        . " -Wswitch-default"
151        . " -Wno-parentheses-equality"
152        . " -Wno-language-extension-token"
153        . " -Wno-extended-offsetof"
154        . " -Wconditional-uninitialized"
155        . " -Wincompatible-pointer-types-discards-qualifiers"
156        . " -Wmissing-variable-declarations"
157        . " -Wno-unknown-warning-option"
158        . " -Wno-unused-function"
159        ;
160
161# This adds backtrace information to the memory leak info.  Is only used
162# when crypto-mdebug-backtrace is enabled.
163my $memleak_devteam_backtrace = "-rdynamic";
164
165my $strict_warnings = 0;
166
167# As for $BSDthreads. Idea is to maintain "collective" set of flags,
168# which would cover all BSD flavors. -pthread applies to them all,
169# but is treated differently. OpenBSD expands is as -D_POSIX_THREAD
170# -lc_r, which is sufficient. FreeBSD 4.x expands it as -lc_r,
171# which has to be accompanied by explicit -D_THREAD_SAFE and
172# sometimes -D_REENTRANT. FreeBSD 5.x expands it as -lc_r, which
173# seems to be sufficient?
174our $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";
175
176#
177# API compatibility name to version number mapping.
178#
179my $maxapi = "1.1.0";           # API for "no-deprecated" builds
180my $apitable = {
181    "1.1.0" => "0x10100000L",
182    "1.0.0" => "0x10000000L",
183    "0.9.8" => "0x00908000L",
184};
185
186our %table = ();
187our %config = ();
188our %withargs = ();
189our $now_printing;      # set to current entry's name in print_table_entry
190                        # (todo: right thing would be to encapsulate name
191                        # into %target [class] and make print_table_entry
192                        # a method)
193
194# Forward declarations ###############################################
195
196# read_config(filename)
197#
198# Reads a configuration file and populates %table with the contents
199# (which the configuration file places in %targets).
200sub read_config;
201
202# resolve_config(target)
203#
204# Resolves all the late evaluations, inheritances and so on for the
205# chosen target and any target it inherits from.
206sub resolve_config;
207
208
209# Information collection #############################################
210
211# Unified build supports separate build dir
212my $srcdir = catdir(absolutedir(dirname($0))); # catdir ensures local syntax
213my $blddir = catdir(absolutedir("."));         # catdir ensures local syntax
214my $dofile = abs2rel(catfile($srcdir, "util/dofile.pl"));
215
216my $local_config_envname = 'OPENSSL_LOCAL_CONFIG_DIR';
217
218$config{sourcedir} = abs2rel($srcdir);
219$config{builddir} = abs2rel($blddir);
220
221# Collect reconfiguration information if needed
222my @argvcopy=@ARGV;
223
224if (grep /^reconf(igure)?$/, @argvcopy) {
225    die "reconfiguring with other arguments present isn't supported"
226        if scalar @argvcopy > 1;
227    if (-f "./configdata.pm") {
228	my $file = "./configdata.pm";
229	unless (my $return = do $file) {
230	    die "couldn't parse $file: $@" if $@;
231            die "couldn't do $file: $!"    unless defined $return;
232            die "couldn't run $file"       unless $return;
233	}
234
235	@argvcopy = defined($configdata::config{perlargv}) ?
236	    @{$configdata::config{perlargv}} : ();
237	die "Incorrect data to reconfigure, please do a normal configuration\n"
238	    if (grep(/^reconf/,@argvcopy));
239	$config{perlenv} = $configdata::config{perlenv} // {};
240    } else {
241	die "Insufficient data to reconfigure, please do a normal configuration\n";
242    }
243}
244
245$config{perlargv} = [ @argvcopy ];
246
247# Collect version numbers
248$config{version} = "unknown";
249$config{version_num} = "unknown";
250$config{shlib_version_number} = "unknown";
251$config{shlib_version_history} = "unknown";
252
253collect_information(
254    collect_from_file(catfile($srcdir,'include/openssl/opensslv.h')),
255    qr/OPENSSL.VERSION.TEXT.*OpenSSL (\S+) / => sub { $config{version} = $1; },
256    qr/OPENSSL.VERSION.NUMBER.*(0x\S+)/	     => sub { $config{version_num}=$1 },
257    qr/SHLIB_VERSION_NUMBER *"([^"]+)"/	     => sub { $config{shlib_version_number}=$1 },
258    qr/SHLIB_VERSION_HISTORY *"([^"]*)"/     => sub { $config{shlib_version_history}=$1 }
259    );
260if ($config{shlib_version_history} ne "") { $config{shlib_version_history} .= ":"; }
261
262($config{major}, $config{minor})
263    = ($config{version} =~ /^([0-9]+)\.([0-9\.]+)/);
264($config{shlib_major}, $config{shlib_minor})
265    = ($config{shlib_version_number} =~ /^([0-9]+)\.([0-9\.]+)/);
266die "erroneous version information in opensslv.h: ",
267    "$config{major}, $config{minor}, $config{shlib_major}, $config{shlib_minor}\n"
268    if ($config{major} eq "" || $config{minor} eq ""
269	|| $config{shlib_major} eq "" ||  $config{shlib_minor} eq "");
270
271# Collect target configurations
272
273my $pattern = catfile(dirname($0), "Configurations", "*.conf");
274foreach (sort glob($pattern)) {
275    &read_config($_);
276}
277
278if (defined env($local_config_envname)) {
279    if ($^O eq 'VMS') {
280        # VMS environment variables are logical names,
281        # which can be used as is
282        $pattern = $local_config_envname . ':' . '*.conf';
283    } else {
284        $pattern = catfile(env($local_config_envname), '*.conf');
285    }
286
287    foreach (sort glob($pattern)) {
288        &read_config($_);
289    }
290}
291
292# Save away perl command information
293$config{perl_cmd} = $^X;
294$config{perl_version} = $Config{version};
295$config{perl_archname} = $Config{archname};
296
297$config{prefix}="";
298$config{openssldir}="";
299$config{processor}="";
300$config{libdir}="";
301my $auto_threads=1;    # enable threads automatically? true by default
302my $default_ranlib;
303
304# Top level directories to build
305$config{dirs} = [ "crypto", "ssl", "engines", "apps", "test", "util", "tools", "fuzz" ];
306# crypto/ subdirectories to build
307$config{sdirs} = [
308    "objects",
309    "md2", "md4", "md5", "sha", "mdc2", "hmac", "ripemd", "whrlpool", "poly1305", "blake2", "siphash", "sm3",
310    "des", "aes", "rc2", "rc4", "rc5", "idea", "aria", "bf", "cast", "camellia", "seed", "sm4", "chacha", "modes",
311    "bn", "ec", "rsa", "dsa", "dh", "sm2", "dso", "engine",
312    "buffer", "bio", "stack", "lhash", "rand", "err",
313    "evp", "asn1", "pem", "x509", "x509v3", "conf", "txt_db", "pkcs7", "pkcs12", "comp", "ocsp", "ui",
314    "cms", "ts", "srp", "cmac", "ct", "async", "kdf", "store"
315    ];
316# test/ subdirectories to build
317$config{tdirs} = [ "ossl_shim" ];
318
319# Known TLS and DTLS protocols
320my @tls = qw(ssl3 tls1 tls1_1 tls1_2 tls1_3);
321my @dtls = qw(dtls1 dtls1_2);
322
323# Explicitly known options that are possible to disable.  They can
324# be regexps, and will be used like this: /^no-${option}$/
325# For developers: keep it sorted alphabetically
326
327my @disablables = (
328    "afalgeng",
329    "aria",
330    "asan",
331    "asm",
332    "async",
333    "autoalginit",
334    "autoerrinit",
335    "autoload-config",
336    "bf",
337    "blake2",
338    "camellia",
339    "capieng",
340    "cast",
341    "chacha",
342    "cmac",
343    "cms",
344    "comp",
345    "crypto-mdebug",
346    "crypto-mdebug-backtrace",
347    "ct",
348    "deprecated",
349    "des",
350    "devcryptoeng",
351    "dgram",
352    "dh",
353    "dsa",
354    "dso",
355    "dtls",
356    "dynamic-engine",
357    "ec",
358    "ec2m",
359    "ecdh",
360    "ecdsa",
361    "ec_nistp_64_gcc_128",
362    "egd",
363    "engine",
364    "err",
365    "external-tests",
366    "filenames",
367    "fuzz-libfuzzer",
368    "fuzz-afl",
369    "gost",
370    "heartbeats",
371    "hw(-.+)?",
372    "idea",
373    "makedepend",
374    "md2",
375    "md4",
376    "mdc2",
377    "msan",
378    "multiblock",
379    "nextprotoneg",
380    "pinshared",
381    "ocb",
382    "ocsp",
383    "pic",
384    "poly1305",
385    "posix-io",
386    "psk",
387    "rc2",
388    "rc4",
389    "rc5",
390    "rdrand",
391    "rfc3779",
392    "rmd160",
393    "scrypt",
394    "sctp",
395    "seed",
396    "shared",
397    "siphash",
398    "sm2",
399    "sm3",
400    "sm4",
401    "sock",
402    "srp",
403    "srtp",
404    "sse2",
405    "ssl",
406    "ssl-trace",
407    "static-engine",
408    "stdio",
409    "tests",
410    "threads",
411    "tls",
412    "ts",
413    "ubsan",
414    "ui-console",
415    "unit-test",
416    "whirlpool",
417    "weak-ssl-ciphers",
418    "zlib",
419    "zlib-dynamic",
420    );
421foreach my $proto ((@tls, @dtls))
422	{
423	push(@disablables, $proto);
424	push(@disablables, "$proto-method") unless $proto eq "tls1_3";
425	}
426
427my %deprecated_disablables = (
428    "ssl2" => undef,
429    "buf-freelists" => undef,
430    "ripemd" => "rmd160",
431    "ui" => "ui-console",
432    );
433
434# All of the following are disabled by default:
435
436our %disabled = ( # "what"         => "comment"
437		  "asan"		=> "default",
438		  "crypto-mdebug"       => "default",
439		  "crypto-mdebug-backtrace" => "default",
440		  "devcryptoeng"	=> "default",
441		  "ec_nistp_64_gcc_128" => "default",
442		  "egd"                 => "default",
443		  "external-tests"	=> "default",
444		  "fuzz-libfuzzer"	=> "default",
445		  "fuzz-afl"		=> "default",
446		  "heartbeats"          => "default",
447		  "md2"                 => "default",
448                  "msan"                => "default",
449		  "rc5"                 => "default",
450		  "sctp"                => "default",
451		  "ssl-trace"           => "default",
452		  "ssl3"                => "default",
453		  "ssl3-method"         => "default",
454                  "ubsan"		=> "default",
455		  "unit-test"           => "default",
456		  "weak-ssl-ciphers"    => "default",
457		  "zlib"                => "default",
458		  "zlib-dynamic"        => "default",
459		);
460
461# Note: => pair form used for aesthetics, not to truly make a hash table
462my @disable_cascades = (
463    # "what"		=> [ "cascade", ... ]
464    sub { $config{processor} eq "386" }
465			=> [ "sse2" ],
466    "ssl"		=> [ "ssl3" ],
467    "ssl3-method"	=> [ "ssl3" ],
468    "zlib"		=> [ "zlib-dynamic" ],
469    "des"		=> [ "mdc2" ],
470    "ec"		=> [ "ecdsa", "ecdh" ],
471
472    "dgram"		=> [ "dtls", "sctp" ],
473    "sock"		=> [ "dgram" ],
474    "dtls"		=> [ @dtls ],
475    sub { 0 == scalar grep { !$disabled{$_} } @dtls }
476			=> [ "dtls" ],
477
478    "tls"		=> [ @tls ],
479    sub { 0 == scalar grep { !$disabled{$_} } @tls }
480			=> [ "tls" ],
481
482    "crypto-mdebug"     => [ "crypto-mdebug-backtrace" ],
483
484    # Without DSO, we can't load dynamic engines, so don't build them dynamic
485    "dso"               => [ "dynamic-engine" ],
486
487    # Without position independent code, there can be no shared libraries or DSOs
488    "pic"               => [ "shared" ],
489    "shared"            => [ "dynamic-engine" ],
490    "engine"            => [ "afalgeng", "devcryptoeng" ],
491
492    # no-autoalginit is only useful when building non-shared
493    "autoalginit"       => [ "shared", "apps" ],
494
495    "stdio"             => [ "apps", "capieng", "egd" ],
496    "apps"              => [ "tests" ],
497    "tests"             => [ "external-tests" ],
498    "comp"              => [ "zlib" ],
499    "ec"                => [ "tls1_3", "sm2" ],
500    "sm3"               => [ "sm2" ],
501    sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
502
503    sub { !$disabled{"msan"} } => [ "asm" ],
504    );
505
506# Avoid protocol support holes.  Also disable all versions below N, if version
507# N is disabled while N+1 is enabled.
508#
509my @list = (reverse @tls);
510while ((my $first, my $second) = (shift @list, shift @list)) {
511    last unless @list;
512    push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
513			      => [ @list ] );
514    unshift @list, $second;
515}
516my @list = (reverse @dtls);
517while ((my $first, my $second) = (shift @list, shift @list)) {
518    last unless @list;
519    push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
520			      => [ @list ] );
521    unshift @list, $second;
522}
523
524# Explicit "no-..." options will be collected in %disabled along with the defaults.
525# To remove something from %disabled, use "enable-foo".
526# For symmetry, "disable-foo" is a synonym for "no-foo".
527
528&usage if ($#ARGV < 0);
529
530# For the "make variables" CINCLUDES and CDEFINES, we support lists with
531# platform specific list separators.  Users from those platforms should
532# recognise those separators from how you set up the PATH to find executables.
533# The default is the Unix like separator, :, but as an exception, we also
534# support the space as separator.
535my $list_separator_re =
536    { VMS           => qr/(?<!\^),/,
537      MSWin32       => qr/(?<!\\);/ } -> {$^O} // qr/(?<!\\)[:\s]/;
538# All the "make variables" we support
539# Some get pre-populated for the sake of backward compatibility
540# (we supported those before the change to "make variable" support.
541my %user = (
542    AR          => env('AR'),
543    ARFLAGS     => [],
544    AS          => undef,
545    ASFLAGS     => [],
546    CC          => env('CC'),
547    CFLAGS      => [],
548    CXX         => env('CXX'),
549    CXXFLAGS    => [],
550    CPP         => undef,
551    CPPFLAGS    => [],  # -D, -I, -Wp,
552    CPPDEFINES  => [],  # Alternative for -D
553    CPPINCLUDES => [],  # Alternative for -I
554    CROSS_COMPILE => env('CROSS_COMPILE'),
555    HASHBANGPERL=> env('HASHBANGPERL') || env('PERL'),
556    LD          => undef,
557    LDFLAGS     => [],  # -L, -Wl,
558    LDLIBS      => [],  # -l
559    MT          => undef,
560    MTFLAGS     => [],
561    PERL        => env('PERL') || ($^O ne "VMS" ? $^X : "perl"),
562    RANLIB      => env('RANLIB'),
563    RC          => env('RC') || env('WINDRES'),
564    RCFLAGS     => [],
565    RM          => undef,
566   );
567# Info about what "make variables" may be prefixed with the cross compiler
568# prefix.  This should NEVER mention any such variable with a list for value.
569my @user_crossable = qw ( AR AS CC CXX CPP LD MT RANLIB RC );
570# The same but for flags given as Configure options.  These are *additional*
571# input, as opposed to the VAR=string option that override the corresponding
572# config target attributes
573my %useradd = (
574    CPPDEFINES  => [],
575    CPPINCLUDES => [],
576    CPPFLAGS    => [],
577    CFLAGS      => [],
578    CXXFLAGS    => [],
579    LDFLAGS     => [],
580    LDLIBS      => [],
581   );
582
583my %user_synonyms = (
584    HASHBANGPERL=> 'PERL',
585    RC          => 'WINDRES',
586   );
587
588# Some target attributes have been renamed, this is the translation table
589my %target_attr_translate =(
590    ar          => 'AR',
591    as          => 'AS',
592    cc          => 'CC',
593    cxx         => 'CXX',
594    cpp         => 'CPP',
595    hashbangperl => 'HASHBANGPERL',
596    ld          => 'LD',
597    mt          => 'MT',
598    ranlib      => 'RANLIB',
599    rc          => 'RC',
600    rm          => 'RM',
601   );
602
603# Initialisers coming from 'config' scripts
604$config{defines} = [ split(/$list_separator_re/, env('__CNF_CPPDEFINES')) ];
605$config{includes} = [ split(/$list_separator_re/, env('__CNF_CPPINCLUDES')) ];
606$config{cppflags} = [ env('__CNF_CPPFLAGS') || () ];
607$config{cflags} = [ env('__CNF_CFLAGS') || () ];
608$config{cxxflags} = [ env('__CNF_CXXFLAGS') || () ];
609$config{lflags} = [ env('__CNF_LDFLAGS') || () ];
610$config{ex_libs} = [ env('__CNF_LDLIBS') || () ];
611
612$config{openssl_api_defines}=[];
613$config{openssl_algorithm_defines}=[];
614$config{openssl_thread_defines}=[];
615$config{openssl_sys_defines}=[];
616$config{openssl_other_defines}=[];
617$config{options}="";
618$config{build_type} = "release";
619my $target="";
620
621my %cmdvars = ();               # Stores FOO='blah' type arguments
622my %unsupported_options = ();
623my %deprecated_options = ();
624# If you change this, update apps/version.c
625my @known_seed_sources = qw(getrandom devrandom os egd none rdcpu librandom);
626my @seed_sources = ();
627while (@argvcopy)
628	{
629	$_ = shift @argvcopy;
630
631	# Support env variable assignments among the options
632	if (m|^(\w+)=(.+)?$|)
633		{
634		$cmdvars{$1} = $2;
635		# Every time a variable is given as a configuration argument,
636		# it acts as a reset if the variable.
637		if (exists $user{$1})
638			{
639			$user{$1} = ref $user{$1} eq "ARRAY" ? [] : undef;
640			}
641		#if (exists $useradd{$1})
642		#	{
643		#	$useradd{$1} = [];
644		#	}
645		next;
646		}
647
648	# VMS is a case insensitive environment, and depending on settings
649	# out of our control, we may receive options uppercased.  Let's
650	# downcase at least the part before any equal sign.
651	if ($^O eq "VMS")
652		{
653		s/^([^=]*)/lc($1)/e;
654		}
655
656	# some people just can't read the instructions, clang people have to...
657	s/^-no-(?!integrated-as)/no-/;
658
659	# rewrite some options in "enable-..." form
660	s /^-?-?shared$/enable-shared/;
661	s /^sctp$/enable-sctp/;
662	s /^threads$/enable-threads/;
663	s /^zlib$/enable-zlib/;
664	s /^zlib-dynamic$/enable-zlib-dynamic/;
665
666        if (/^(no|disable|enable)-(.+)$/)
667                {
668                my $word = $2;
669                if (!exists $deprecated_disablables{$word}
670                        && !grep { $word =~ /^${_}$/ } @disablables)
671                        {
672                        $unsupported_options{$_} = 1;
673                        next;
674                        }
675                }
676        if (/^no-(.+)$/ || /^disable-(.+)$/)
677                {
678                foreach my $proto ((@tls, @dtls))
679                        {
680                        if ($1 eq "$proto-method")
681                                {
682                                $disabled{"$proto"} = "option($proto-method)";
683                                last;
684                                }
685                        }
686                if ($1 eq "dtls")
687                        {
688                        foreach my $proto (@dtls)
689                                {
690                                $disabled{$proto} = "option(dtls)";
691                                }
692                        $disabled{"dtls"} = "option(dtls)";
693                        }
694                elsif ($1 eq "ssl")
695                        {
696                        # Last one of its kind
697                        $disabled{"ssl3"} = "option(ssl)";
698                        }
699                elsif ($1 eq "tls")
700                        {
701                        # XXX: Tests will fail if all SSL/TLS
702                        # protocols are disabled.
703                        foreach my $proto (@tls)
704                                {
705                                $disabled{$proto} = "option(tls)";
706                                }
707                        }
708                elsif ($1 eq "static-engine")
709                        {
710                        delete $disabled{"dynamic-engine"};
711                        }
712                elsif ($1 eq "dynamic-engine")
713                        {
714                        $disabled{"dynamic-engine"} = "option";
715                        }
716                elsif (exists $deprecated_disablables{$1})
717                        {
718                        $deprecated_options{$_} = 1;
719                        if (defined $deprecated_disablables{$1})
720                                {
721                                $disabled{$deprecated_disablables{$1}} = "option";
722                                }
723                        }
724                else
725                        {
726                        $disabled{$1} = "option";
727                        }
728		# No longer an automatic choice
729		$auto_threads = 0 if ($1 eq "threads");
730		}
731	elsif (/^enable-(.+)$/)
732		{
733                if ($1 eq "static-engine")
734                        {
735                        $disabled{"dynamic-engine"} = "option";
736                        }
737                elsif ($1 eq "dynamic-engine")
738                        {
739                        delete $disabled{"dynamic-engine"};
740                        }
741                elsif ($1 eq "zlib-dynamic")
742                        {
743                        delete $disabled{"zlib"};
744                        }
745		my $algo = $1;
746		delete $disabled{$algo};
747
748		# No longer an automatic choice
749		$auto_threads = 0 if ($1 eq "threads");
750		}
751	elsif (/^--strict-warnings$/)
752		{
753		$strict_warnings = 1;
754		}
755	elsif (/^--debug$/)
756		{
757		$config{build_type} = "debug";
758		}
759	elsif (/^--release$/)
760		{
761		$config{build_type} = "release";
762		}
763	elsif (/^386$/)
764		{ $config{processor}=386; }
765	elsif (/^fips$/)
766		{
767		die "FIPS mode not supported\n";
768		}
769	elsif (/^rsaref$/)
770		{
771		# No RSAref support any more since it's not needed.
772		# The check for the option is there so scripts aren't
773		# broken
774		}
775	elsif (/^nofipscanistercheck$/)
776		{
777		die "FIPS mode not supported\n";
778		}
779	elsif (/^[-+]/)
780		{
781		if (/^--prefix=(.*)$/)
782			{
783			$config{prefix}=$1;
784			die "Directory given with --prefix MUST be absolute\n"
785				unless file_name_is_absolute($config{prefix});
786			}
787		elsif (/^--api=(.*)$/)
788			{
789			$config{api}=$1;
790			}
791		elsif (/^--libdir=(.*)$/)
792			{
793			$config{libdir}=$1;
794			}
795		elsif (/^--openssldir=(.*)$/)
796			{
797			$config{openssldir}=$1;
798			}
799		elsif (/^--with-zlib-lib=(.*)$/)
800			{
801			$withargs{zlib_lib}=$1;
802			}
803		elsif (/^--with-zlib-include=(.*)$/)
804			{
805			$withargs{zlib_include}=$1;
806			}
807		elsif (/^--with-fuzzer-lib=(.*)$/)
808			{
809			$withargs{fuzzer_lib}=$1;
810			}
811		elsif (/^--with-fuzzer-include=(.*)$/)
812			{
813			$withargs{fuzzer_include}=$1;
814			}
815		elsif (/^--with-rand-seed=(.*)$/)
816			{
817			foreach my $x (split(m|,|, $1))
818			    {
819			    die "Unknown --with-rand-seed choice $x\n"
820				if ! grep { $x eq $_ } @known_seed_sources;
821			    push @seed_sources, $x;
822			    }
823                        }
824		elsif (/^--cross-compile-prefix=(.*)$/)
825			{
826			$user{CROSS_COMPILE}=$1;
827			}
828		elsif (/^--config=(.*)$/)
829			{
830			read_config $1;
831			}
832		elsif (/^-l(.*)$/)
833			{
834			push @{$useradd{LDLIBS}}, $_;
835			}
836		elsif (/^-framework$/)
837			{
838			push @{$useradd{LDLIBS}}, $_, shift(@argvcopy);
839			}
840		elsif (/^-L(.*)$/ or /^-Wl,/)
841			{
842			push @{$useradd{LDFLAGS}}, $_;
843			}
844		elsif (/^-rpath$/ or /^-R$/)
845			# -rpath is the OSF1 rpath flag
846			# -R is the old Solaris rpath flag
847			{
848			my $rpath = shift(@argvcopy) || "";
849			$rpath .= " " if $rpath ne "";
850			push @{$useradd{LDFLAGS}}, $_, $rpath;
851			}
852		elsif (/^-static$/)
853			{
854			push @{$useradd{LDFLAGS}}, $_;
855			$disabled{"dso"} = "forced";
856			$disabled{"pic"} = "forced";
857			$disabled{"shared"} = "forced";
858			$disabled{"threads"} = "forced";
859			}
860		elsif (/^-D(.*)$/)
861			{
862			push @{$useradd{CPPDEFINES}}, $1;
863			}
864		elsif (/^-I(.*)$/)
865			{
866			push @{$useradd{CPPINCLUDES}}, $1;
867			}
868		elsif (/^-Wp,$/)
869			{
870			push @{$useradd{CPPFLAGS}}, $1;
871			}
872		else	# common if (/^[-+]/), just pass down...
873			{
874			$_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
875			push @{$useradd{CFLAGS}}, $_;
876			push @{$useradd{CXXFLAGS}}, $_;
877			}
878		}
879	else
880		{
881		die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
882		$target=$_;
883		}
884	unless ($_ eq $target || /^no-/ || /^disable-/)
885		{
886		# "no-..." follows later after implied deactivations
887		# have been derived.  (Don't take this too seriously,
888		# we really only write OPTIONS to the Makefile out of
889		# nostalgia.)
890
891		if ($config{options} eq "")
892			{ $config{options} = $_; }
893		else
894			{ $config{options} .= " ".$_; }
895		}
896	}
897
898if (defined($config{api}) && !exists $apitable->{$config{api}}) {
899	die "***** Unsupported api compatibility level: $config{api}\n",
900}
901
902if (keys %deprecated_options)
903	{
904	warn "***** Deprecated options: ",
905		join(", ", keys %deprecated_options), "\n";
906	}
907if (keys %unsupported_options)
908	{
909	die "***** Unsupported options: ",
910		join(", ", keys %unsupported_options), "\n";
911	}
912
913# If any %useradd entry has been set, we must check that the "make
914# variables" haven't been set.  We start by checking of any %useradd entry
915# is set.
916if (grep { scalar @$_ > 0 } values %useradd) {
917    # Hash of env / make variables names.  The possible values are:
918    # 1 - "make vars"
919    # 2 - %useradd entry set
920    # 3 - both set
921    my %detected_vars =
922        map { my $v = 0;
923              $v += 1 if $cmdvars{$_};
924              $v += 2 if @{$useradd{$_}};
925              $_ => $v }
926        keys %useradd;
927
928    # If any of the corresponding "make variables" is set, we error
929    if (grep { $_ & 1 } values %detected_vars) {
930        my $names = join(', ', grep { $detected_vars{$_} > 0 }
931                               sort keys %detected_vars);
932        die <<"_____";
933***** Mixing make variables and additional compiler/linker flags as
934***** configure command line option is not permitted.
935***** Affected make variables: $names
936_____
937    }
938}
939
940# Check through all supported command line variables to see if any of them
941# were set, and canonicalise the values we got.  If no compiler or linker
942# flag or anything else that affects %useradd was set, we also check the
943# environment for values.
944my $anyuseradd =
945    grep { defined $_ && (ref $_ ne 'ARRAY' || @$_) } values %useradd;
946foreach (keys %user) {
947    my $value = $cmdvars{$_};
948    $value //= env($_) unless $anyuseradd;
949    $value //=
950        defined $user_synonyms{$_} ? $cmdvars{$user_synonyms{$_}} : undef;
951    $value //= defined $user_synonyms{$_} ? env($user_synonyms{$_}) : undef
952        unless $anyuseradd;
953
954    if (defined $value) {
955        if (ref $user{$_} eq 'ARRAY') {
956            $user{$_} = [ split /$list_separator_re/, $value ];
957        } elsif (!defined $user{$_}) {
958            $user{$_} = $value;
959        }
960    }
961}
962
963if (grep { /-rpath\b/ } ($user{LDFLAGS} ? @{$user{LDFLAGS}} : ())
964    && !$disabled{shared}
965    && !($disabled{asan} && $disabled{msan} && $disabled{ubsan})) {
966    die "***** Cannot simultaneously use -rpath, shared libraries, and\n",
967	"***** any of asan, msan or ubsan\n";
968}
969
970my @tocheckfor = (keys %disabled);
971while (@tocheckfor) {
972    my %new_tocheckfor = ();
973    my @cascade_copy = (@disable_cascades);
974    while (@cascade_copy) {
975	my ($test, $descendents) = (shift @cascade_copy, shift @cascade_copy);
976	if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
977	    foreach(grep { !defined($disabled{$_}) } @$descendents) {
978		$new_tocheckfor{$_} = 1; $disabled{$_} = "forced";
979	    }
980	}
981    }
982    @tocheckfor = (keys %new_tocheckfor);
983}
984
985our $die = sub { die @_; };
986if ($target eq "TABLE") {
987    local $die = sub { warn @_; };
988    foreach (sort keys %table) {
989	print_table_entry($_, "TABLE");
990    }
991    exit 0;
992}
993
994if ($target eq "LIST") {
995    foreach (sort keys %table) {
996	print $_,"\n" unless $table{$_}->{template};
997    }
998    exit 0;
999}
1000
1001if ($target eq "HASH") {
1002    local $die = sub { warn @_; };
1003    print "%table = (\n";
1004    foreach (sort keys %table) {
1005	print_table_entry($_, "HASH");
1006    }
1007    exit 0;
1008}
1009
1010print "Configuring OpenSSL version $config{version} ($config{version_num}) ";
1011print "for $target\n";
1012
1013if (scalar(@seed_sources) == 0) {
1014    print "Using os-specific seed configuration\n";
1015    push @seed_sources, 'os';
1016}
1017if (scalar(grep { $_ eq 'none' } @seed_sources) > 0) {
1018    die "Cannot seed with none and anything else" if scalar(@seed_sources) > 1;
1019    warn <<_____ if scalar(@seed_sources) == 1;
1020
1021============================== WARNING ===============================
1022You have selected the --with-rand-seed=none option, which effectively
1023disables automatic reseeding of the OpenSSL random generator.
1024All operations depending on the random generator such as creating keys
1025will not work unless the random generator is seeded manually by the
1026application.
1027
1028Please read the 'Note on random number generation' section in the
1029INSTALL instructions and the RAND_DRBG(7) manual page for more details.
1030============================== WARNING ===============================
1031
1032_____
1033}
1034push @{$config{openssl_other_defines}},
1035     map { (my $x = $_) =~ tr|[\-a-z]|[_A-Z]|; "OPENSSL_RAND_SEED_$x" }
1036	@seed_sources;
1037
1038# Backward compatibility?
1039if ($target =~ m/^CygWin32(-.*)$/) {
1040    $target = "Cygwin".$1;
1041}
1042
1043# Support for legacy targets having a name starting with 'debug-'
1044my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
1045if ($d) {
1046    $config{build_type} = "debug";
1047
1048    # If we do not find debug-foo in the table, the target is set to foo.
1049    if (!$table{$target}) {
1050	$target = $t;
1051    }
1052}
1053
1054&usage if !$table{$target} || $table{$target}->{template};
1055
1056$config{target} = $target;
1057my %target = resolve_config($target);
1058
1059foreach (keys %target_attr_translate) {
1060    $target{$target_attr_translate{$_}} = $target{$_}
1061        if $target{$_};
1062    delete $target{$_};
1063}
1064
1065%target = ( %{$table{DEFAULTS}}, %target );
1066
1067# Make the flags to build DSOs the same as for shared libraries unless they
1068# are already defined
1069$target{module_cflags} = $target{shared_cflag} unless defined $target{module_cflags};
1070$target{module_cxxflags} = $target{shared_cxxflag} unless defined $target{module_cxxflags};
1071$target{module_ldflags} = $target{shared_ldflag} unless defined $target{module_ldflags};
1072{
1073    my $shared_info_pl =
1074        catfile(dirname($0), "Configurations", "shared-info.pl");
1075    my %shared_info = read_eval_file($shared_info_pl);
1076    push @{$target{_conf_fname_int}}, $shared_info_pl;
1077    my $si = $target{shared_target};
1078    while (ref $si ne "HASH") {
1079        last if ! defined $si;
1080        if (ref $si eq "CODE") {
1081            $si = $si->();
1082        } else {
1083            $si = $shared_info{$si};
1084        }
1085    }
1086
1087    # Some of the 'shared_target' values don't have any entried in
1088    # %shared_info.  That's perfectly fine, AS LONG AS the build file
1089    # template knows how to handle this.  That is currently the case for
1090    # Windows and VMS.
1091    if (defined $si) {
1092        # Just as above, copy certain shared_* attributes to the corresponding
1093        # module_ attribute unless the latter is already defined
1094        $si->{module_cflags} = $si->{shared_cflag} unless defined $si->{module_cflags};
1095        $si->{module_cxxflags} = $si->{shared_cxxflag} unless defined $si->{module_cxxflags};
1096        $si->{module_ldflags} = $si->{shared_ldflag} unless defined $si->{module_ldflags};
1097        foreach (sort keys %$si) {
1098            $target{$_} = defined $target{$_}
1099                ? add($si->{$_})->($target{$_})
1100                : $si->{$_};
1101        }
1102    }
1103}
1104
1105my %conf_files = map { $_ => 1 } (@{$target{_conf_fname_int}});
1106$config{conf_files} = [ sort keys %conf_files ];
1107
1108foreach my $feature (@{$target{disable}}) {
1109    if (exists $deprecated_disablables{$feature}) {
1110        warn "***** config $target disables deprecated feature $feature\n";
1111    } elsif (!grep { $feature eq $_ } @disablables) {
1112        die "***** config $target disables unknown feature $feature\n";
1113    }
1114    $disabled{$feature} = 'config';
1115}
1116foreach my $feature (@{$target{enable}}) {
1117    if ("default" eq ($disabled{$feature} // "")) {
1118        if (exists $deprecated_disablables{$feature}) {
1119            warn "***** config $target enables deprecated feature $feature\n";
1120        } elsif (!grep { $feature eq $_ } @disablables) {
1121            die "***** config $target enables unknown feature $feature\n";
1122        }
1123        delete $disabled{$feature};
1124    }
1125}
1126
1127$target{CXXFLAGS}//=$target{CFLAGS} if $target{CXX};
1128$target{cxxflags}//=$target{cflags} if $target{CXX};
1129$target{exe_extension}="";
1130$target{exe_extension}=".exe" if ($config{target} eq "DJGPP"
1131                                  || $config{target} =~ /^(?:Cygwin|mingw)/);
1132$target{exe_extension}=".pm"  if ($config{target} =~ /vos/);
1133
1134($target{shared_extension_simple}=$target{shared_extension})
1135    =~ s|\.\$\(SHLIB_VERSION_NUMBER\)||
1136    unless defined($target{shared_extension_simple});
1137$target{dso_extension}//=$target{shared_extension_simple};
1138($target{shared_import_extension}=$target{shared_extension_simple}.".a")
1139    if ($config{target} =~ /^(?:Cygwin|mingw)/);
1140
1141# Fill %config with values from %user, and in case those are undefined or
1142# empty, use values from %target (acting as a default).
1143foreach (keys %user) {
1144    my $ref_type = ref $user{$_};
1145
1146    # Temporary function.  Takes an intended ref type (empty string or "ARRAY")
1147    # and a value that's to be coerced into that type.
1148    my $mkvalue = sub {
1149        my $type = shift;
1150        my $value = shift;
1151        my $undef_p = shift;
1152
1153        die "Too many arguments for \$mkvalue" if @_;
1154
1155        while (ref $value eq 'CODE') {
1156            $value = $value->();
1157        }
1158
1159        if ($type eq 'ARRAY') {
1160            return undef unless defined $value;
1161            return undef if ref $value ne 'ARRAY' && !$value;
1162            return undef if ref $value eq 'ARRAY' && !@$value;
1163            return [ $value ] unless ref $value eq 'ARRAY';
1164        }
1165        return undef unless $value;
1166        return $value;
1167    };
1168
1169    $config{$_} =
1170        $mkvalue->($ref_type, $user{$_})
1171        || $mkvalue->($ref_type, $target{$_});
1172    delete $config{$_} unless defined $config{$_};
1173}
1174
1175# Allow overriding the build file name
1176$config{build_file} = env('BUILDFILE') || $target{build_file} || "Makefile";
1177
1178my %disabled_info = ();         # For configdata.pm
1179foreach my $what (sort keys %disabled) {
1180    $config{options} .= " no-$what";
1181
1182    if (!grep { $what eq $_ } ( 'dso', 'threads', 'shared', 'pic',
1183                                'dynamic-engine', 'makedepend',
1184                                'zlib-dynamic', 'zlib', 'sse2' )) {
1185        (my $WHAT = uc $what) =~ s|-|_|g;
1186
1187        # Fix up C macro end names
1188        $WHAT = "RMD160" if $what eq "ripemd";
1189
1190        # fix-up crypto/directory name(s)
1191        $what = "ripemd" if $what eq "rmd160";
1192        $what = "whrlpool" if $what eq "whirlpool";
1193
1194        my $macro = $disabled_info{$what}->{macro} = "OPENSSL_NO_$WHAT";
1195
1196        if ((grep { $what eq $_ } @{$config{sdirs}})
1197                && $what ne 'async' && $what ne 'err') {
1198            @{$config{sdirs}} = grep { $what ne $_} @{$config{sdirs}};
1199            $disabled_info{$what}->{skipped} = [ catdir('crypto', $what) ];
1200
1201            if ($what ne 'engine') {
1202                push @{$config{openssl_algorithm_defines}}, $macro;
1203            } else {
1204                @{$config{dirs}} = grep !/^engines$/, @{$config{dirs}};
1205                push @{$disabled_info{engine}->{skipped}}, catdir('engines');
1206                push @{$config{openssl_other_defines}}, $macro;
1207            }
1208        } else {
1209            push @{$config{openssl_other_defines}}, $macro;
1210        }
1211
1212    }
1213}
1214
1215# Make sure build_scheme is consistent.
1216$target{build_scheme} = [ $target{build_scheme} ]
1217    if ref($target{build_scheme}) ne "ARRAY";
1218
1219my ($builder, $builder_platform, @builder_opts) =
1220    @{$target{build_scheme}};
1221
1222foreach my $checker (($builder_platform."-".$target{build_file}."-checker.pm",
1223                      $builder_platform."-checker.pm")) {
1224    my $checker_path = catfile($srcdir, "Configurations", $checker);
1225    if (-f $checker_path) {
1226        my $fn = $ENV{CONFIGURE_CHECKER_WARN}
1227            ? sub { warn $@; } : sub { die $@; };
1228        if (! do $checker_path) {
1229            if ($@) {
1230                $fn->($@);
1231            } elsif ($!) {
1232                $fn->($!);
1233            } else {
1234                $fn->("The detected tools didn't match the platform\n");
1235            }
1236        }
1237        last;
1238    }
1239}
1240
1241push @{$config{defines}}, "NDEBUG"    if $config{build_type} eq "release";
1242
1243if ($target =~ /^mingw/ && `$config{CC} --target-help 2>&1` =~ m/-mno-cygwin/m)
1244	{
1245	push @{$config{cflags}}, "-mno-cygwin";
1246	push @{$config{cxxflags}}, "-mno-cygwin" if $config{CXX};
1247	push @{$config{shared_ldflag}}, "-mno-cygwin";
1248	}
1249
1250if ($target =~ /linux.*-mips/ && !$disabled{asm}
1251        && !grep { $_ !~ /-m(ips|arch=)/ } (@{$user{CFLAGS}},
1252                                            @{$useradd{CFLAGS}})) {
1253	# minimally required architecture flags for assembly modules
1254	my $value;
1255	$value = '-mips2' if ($target =~ /mips32/);
1256	$value = '-mips3' if ($target =~ /mips64/);
1257	unshift @{$config{cflags}}, $value;
1258	unshift @{$config{cxxflags}}, $value if $config{CXX};
1259}
1260
1261# If threads aren't disabled, check how possible they are
1262unless ($disabled{threads}) {
1263    if ($auto_threads) {
1264        # Enabled by default, disable it forcibly if unavailable
1265        if ($target{thread_scheme} eq "(unknown)") {
1266            $disabled{threads} = "unavailable";
1267        }
1268    } else {
1269        # The user chose to enable threads explicitly, let's see
1270        # if there's a chance that's possible
1271        if ($target{thread_scheme} eq "(unknown)") {
1272            # If the user asked for "threads" and we don't have internal
1273            # knowledge how to do it, [s]he is expected to provide any
1274            # system-dependent compiler options that are necessary.  We
1275            # can't truly check that the given options are correct, but
1276            # we expect the user to know what [s]He is doing.
1277            if (!@{$user{CFLAGS}} && !@{$useradd{CFLAGS}}
1278                    && !@{$user{CPPDEFINES}} && !@{$useradd{CPPDEFINES}}) {
1279                die "You asked for multi-threading support, but didn't\n"
1280                    ,"provide any system-specific compiler options\n";
1281            }
1282        }
1283    }
1284}
1285
1286# If threads still aren't disabled, add a C macro to ensure the source
1287# code knows about it.  Any other flag is taken care of by the configs.
1288unless($disabled{threads}) {
1289    push @{$config{openssl_thread_defines}}, "OPENSSL_THREADS";
1290}
1291
1292# With "deprecated" disable all deprecated features.
1293if (defined($disabled{"deprecated"})) {
1294        $config{api} = $maxapi;
1295}
1296
1297my $no_shared_warn=0;
1298if ($target{shared_target} eq "")
1299	{
1300	$no_shared_warn = 1
1301	    if (!$disabled{shared} || !$disabled{"dynamic-engine"});
1302	$disabled{shared} = "no-shared-target";
1303	$disabled{pic} = $disabled{shared} = $disabled{"dynamic-engine"} =
1304	    "no-shared-target";
1305	}
1306
1307if ($disabled{"dynamic-engine"}) {
1308        push @{$config{openssl_other_defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
1309        $config{dynamic_engines} = 0;
1310} else {
1311        push @{$config{openssl_other_defines}}, "OPENSSL_NO_STATIC_ENGINE";
1312        $config{dynamic_engines} = 1;
1313}
1314
1315unless ($disabled{asan}) {
1316    push @{$config{cflags}}, "-fsanitize=address";
1317    push @{$config{cxxflags}}, "-fsanitize=address" if $config{CXX};
1318}
1319
1320unless ($disabled{ubsan}) {
1321    # -DPEDANTIC or -fnosanitize=alignment may also be required on some
1322    # platforms.
1323    push @{$config{cflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all";
1324    push @{$config{cxxflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all"
1325        if $config{CXX};
1326}
1327
1328unless ($disabled{msan}) {
1329  push @{$config{cflags}}, "-fsanitize=memory";
1330  push @{$config{cxxflags}}, "-fsanitize=memory" if $config{CXX};
1331}
1332
1333unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
1334        && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
1335    push @{$config{cflags}}, "-fno-omit-frame-pointer", "-g";
1336    push @{$config{cxxflags}}, "-fno-omit-frame-pointer", "-g" if $config{CXX};
1337}
1338#
1339# Platform fix-ups
1340#
1341
1342# This saves the build files from having to check
1343if ($disabled{pic})
1344	{
1345	foreach (qw(shared_cflag shared_cxxflag shared_cppflag
1346		    shared_defines shared_includes shared_ldflag
1347		    module_cflags module_cxxflags module_cppflags
1348		    module_defines module_includes module_lflags))
1349		{
1350		delete $config{$_};
1351		$target{$_} = "";
1352		}
1353	}
1354else
1355	{
1356	push @{$config{lib_defines}}, "OPENSSL_PIC";
1357	}
1358
1359if ($target{sys_id} ne "")
1360	{
1361	push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
1362	}
1363
1364unless ($disabled{asm}) {
1365    $target{cpuid_asm_src}=$table{DEFAULTS}->{cpuid_asm_src} if ($config{processor} eq "386");
1366    push @{$config{lib_defines}}, "OPENSSL_CPUID_OBJ" if ($target{cpuid_asm_src} ne "mem_clr.c");
1367
1368    $target{bn_asm_src} =~ s/\w+-gf2m.c// if (defined($disabled{ec2m}));
1369
1370    # bn-586 is the only one implementing bn_*_part_words
1371    push @{$config{lib_defines}}, "OPENSSL_BN_ASM_PART_WORDS" if ($target{bn_asm_src} =~ /bn-586/);
1372    push @{$config{lib_defines}}, "OPENSSL_IA32_SSE2" if (!$disabled{sse2} && $target{bn_asm_src} =~ /86/);
1373
1374    push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT" if ($target{bn_asm_src} =~ /-mont/);
1375    push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT5" if ($target{bn_asm_src} =~ /-mont5/);
1376    push @{$config{lib_defines}}, "OPENSSL_BN_ASM_GF2m" if ($target{bn_asm_src} =~ /-gf2m/);
1377    push @{$config{lib_defines}}, "BN_DIV3W" if ($target{bn_asm_src} =~ /-div3w/);
1378
1379    if ($target{sha1_asm_src}) {
1380	push @{$config{lib_defines}}, "SHA1_ASM"   if ($target{sha1_asm_src} =~ /sx86/ || $target{sha1_asm_src} =~ /sha1/);
1381	push @{$config{lib_defines}}, "SHA256_ASM" if ($target{sha1_asm_src} =~ /sha256/);
1382	push @{$config{lib_defines}}, "SHA512_ASM" if ($target{sha1_asm_src} =~ /sha512/);
1383    }
1384    if ($target{keccak1600_asm_src} ne $table{DEFAULTS}->{keccak1600_asm_src}) {
1385	push @{$config{lib_defines}}, "KECCAK1600_ASM";
1386    }
1387    if ($target{rc4_asm_src} ne $table{DEFAULTS}->{rc4_asm_src}) {
1388	push @{$config{lib_defines}}, "RC4_ASM";
1389    }
1390    if ($target{md5_asm_src}) {
1391	push @{$config{lib_defines}}, "MD5_ASM";
1392    }
1393    $target{cast_asm_src}=$table{DEFAULTS}->{cast_asm_src} unless $disabled{pic}; # CAST assembler is not PIC
1394    if ($target{rmd160_asm_src}) {
1395	push @{$config{lib_defines}}, "RMD160_ASM";
1396    }
1397    if ($target{aes_asm_src}) {
1398	push @{$config{lib_defines}}, "AES_ASM" if ($target{aes_asm_src} =~ m/\baes-/);;
1399	# aes-ctr.fake is not a real file, only indication that assembler
1400	# module implements AES_ctr32_encrypt...
1401	push @{$config{lib_defines}}, "AES_CTR_ASM" if ($target{aes_asm_src} =~ s/\s*aes-ctr\.fake//);
1402	# aes-xts.fake indicates presence of AES_xts_[en|de]crypt...
1403	push @{$config{lib_defines}}, "AES_XTS_ASM" if ($target{aes_asm_src} =~ s/\s*aes-xts\.fake//);
1404	$target{aes_asm_src} =~ s/\s*(vpaes|aesni)-x86\.s//g if ($disabled{sse2});
1405	push @{$config{lib_defines}}, "VPAES_ASM" if ($target{aes_asm_src} =~ m/vpaes/);
1406	push @{$config{lib_defines}}, "BSAES_ASM" if ($target{aes_asm_src} =~ m/bsaes/);
1407    }
1408    if ($target{wp_asm_src} =~ /mmx/) {
1409        if ($config{processor} eq "386") {
1410	    $target{wp_asm_src}=$table{DEFAULTS}->{wp_asm_src};
1411	} elsif (!$disabled{"whirlpool"}) {
1412	    push @{$config{lib_defines}}, "WHIRLPOOL_ASM";
1413	}
1414    }
1415    if ($target{modes_asm_src} =~ /ghash-/) {
1416	push @{$config{lib_defines}}, "GHASH_ASM";
1417    }
1418    if ($target{ec_asm_src} =~ /ecp_nistz256/) {
1419	push @{$config{lib_defines}}, "ECP_NISTZ256_ASM";
1420    }
1421    if ($target{ec_asm_src} =~ /x25519/) {
1422	push @{$config{lib_defines}}, "X25519_ASM";
1423    }
1424    if ($target{padlock_asm_src} ne $table{DEFAULTS}->{padlock_asm_src}) {
1425	push @{$config{lib_defines}}, "PADLOCK_ASM";
1426    }
1427    if ($target{poly1305_asm_src} ne "") {
1428	push @{$config{lib_defines}}, "POLY1305_ASM";
1429    }
1430}
1431
1432my %predefined = compiler_predefined($config{CROSS_COMPILE}.$config{CC});
1433
1434# Check for makedepend capabilities.
1435if (!$disabled{makedepend}) {
1436    if ($config{target} =~ /^(VC|vms)-/) {
1437        # For VC- and vms- targets, there's nothing more to do here.  The
1438        # functionality is hard coded in the corresponding build files for
1439        # cl (Windows) and CC/DECC (VMS).
1440    } elsif (($predefined{__GNUC__} // -1) >= 3
1441	     && !($predefined{__APPLE_CC__} && !$predefined{__clang__})) {
1442        # We know that GNU C version 3 and up as well as all clang
1443        # versions support dependency generation, but Xcode did not
1444        # handle $cc -M before clang support (but claims __GNUC__ = 3)
1445        $config{makedepprog} = "\$(CROSS_COMPILE)$config{CC}";
1446    } else {
1447        # In all other cases, we look for 'makedepend', and disable the
1448        # capability if not found.
1449        $config{makedepprog} = which('makedepend');
1450        $disabled{makedepend} = "unavailable" unless $config{makedepprog};
1451    }
1452}
1453
1454if (!$disabled{asm} && !$predefined{__MACH__} && $^O ne 'VMS') {
1455    # probe for -Wa,--noexecstack option...
1456    if ($predefined{__clang__}) {
1457        # clang has builtin assembler, which doesn't recognize --help,
1458        # but it apparently recognizes the option in question on all
1459        # supported platforms even when it's meaningless. In other words
1460        # probe would fail, but probed option always accepted...
1461        push @{$config{cflags}}, "-Wa,--noexecstack", "-Qunused-arguments";
1462    } else {
1463        my $cc = $config{CROSS_COMPILE}.$config{CC};
1464        open(PIPE, "$cc -Wa,--help -c -o null.$$.o -x assembler /dev/null 2>&1 |");
1465        while(<PIPE>) {
1466            if (m/--noexecstack/) {
1467                push @{$config{cflags}}, "-Wa,--noexecstack";
1468                last;
1469            }
1470        }
1471        close(PIPE);
1472        unlink("null.$$.o");
1473    }
1474}
1475
1476# Deal with bn_ops ###################################################
1477
1478$config{bn_ll}			=0;
1479$config{export_var_as_fn}	=0;
1480my $def_int="unsigned int";
1481$config{rc4_int}		=$def_int;
1482($config{b64l},$config{b64},$config{b32})=(0,0,1);
1483
1484my $count = 0;
1485foreach (sort split(/\s+/,$target{bn_ops})) {
1486    $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
1487    $config{export_var_as_fn}=1                 if $_ eq 'EXPORT_VAR_AS_FN';
1488    $config{bn_ll}=1				if $_ eq 'BN_LLONG';
1489    $config{rc4_int}="unsigned char"		if $_ eq 'RC4_CHAR';
1490    ($config{b64l},$config{b64},$config{b32})
1491	=(0,1,0)				if $_ eq 'SIXTY_FOUR_BIT';
1492    ($config{b64l},$config{b64},$config{b32})
1493	=(1,0,0)				if $_ eq 'SIXTY_FOUR_BIT_LONG';
1494    ($config{b64l},$config{b64},$config{b32})
1495	=(0,0,1)				if $_ eq 'THIRTY_TWO_BIT';
1496}
1497die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
1498    if $count > 1;
1499
1500
1501# Hack cflags for better warnings (dev option) #######################
1502
1503# "Stringify" the C and C++ flags string.  This permits it to be made part of
1504# a string and works as well on command lines.
1505$config{cflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1506                        @{$config{cflags}} ];
1507$config{cxxflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1508                          @{$config{cxxflags}} ] if $config{CXX};
1509
1510if (defined($config{api})) {
1511    $config{openssl_api_defines} = [ "OPENSSL_MIN_API=".$apitable->{$config{api}} ];
1512    my $apiflag = sprintf("OPENSSL_API_COMPAT=%s", $apitable->{$config{api}});
1513    push @{$config{defines}}, $apiflag;
1514}
1515
1516if ($strict_warnings)
1517	{
1518	my $wopt;
1519	my $gccver = $predefined{__GNUC__} // -1;
1520
1521	die "ERROR --strict-warnings requires gcc[>=4] or gcc-alike"
1522            unless $gccver >= 4;
1523	foreach $wopt (split /\s+/, $gcc_devteam_warn)
1524		{
1525		push @{$config{cflags}}, $wopt
1526			unless grep { $_ eq $wopt } @{$config{cflags}};
1527		push @{$config{cxxflags}}, $wopt
1528			if ($config{CXX}
1529			    && !grep { $_ eq $wopt } @{$config{cxxflags}});
1530		}
1531	if (defined($predefined{__clang__}))
1532		{
1533		foreach $wopt (split /\s+/, $clang_devteam_warn)
1534			{
1535			push @{$config{cflags}}, $wopt
1536				unless grep { $_ eq $wopt } @{$config{cflags}};
1537			push @{$config{cxxflags}}, $wopt
1538				if ($config{CXX}
1539				    && !grep { $_ eq $wopt } @{$config{cxxflags}});
1540			}
1541		}
1542	}
1543
1544unless ($disabled{"crypto-mdebug-backtrace"})
1545	{
1546	foreach my $wopt (split /\s+/, $memleak_devteam_backtrace)
1547		{
1548		push @{$config{cflags}}, $wopt
1549			unless grep { $_ eq $wopt } @{$config{cflags}};
1550		push @{$config{cxxflags}}, $wopt
1551			if ($config{CXX}
1552			    && !grep { $_ eq $wopt } @{$config{cxxflags}});
1553		}
1554	if ($target =~ /^BSD-/)
1555		{
1556		push @{$config{ex_libs}}, "-lexecinfo";
1557		}
1558	}
1559
1560unless ($disabled{afalgeng}) {
1561    $config{afalgeng}="";
1562    if (grep { $_ eq 'afalgeng' } @{$target{enable}}) {
1563        my $minver = 4*10000 + 1*100 + 0;
1564        if ($config{CROSS_COMPILE} eq "") {
1565            my $verstr = `uname -r`;
1566            my ($ma, $mi1, $mi2) = split("\\.", $verstr);
1567            ($mi2) = $mi2 =~ /(\d+)/;
1568            my $ver = $ma*10000 + $mi1*100 + $mi2;
1569            if ($ver < $minver) {
1570                $disabled{afalgeng} = "too-old-kernel";
1571            } else {
1572                push @{$config{engdirs}}, "afalg";
1573            }
1574        } else {
1575            $disabled{afalgeng} = "cross-compiling";
1576        }
1577    } else {
1578        $disabled{afalgeng}  = "not-linux";
1579    }
1580}
1581
1582push @{$config{openssl_other_defines}}, "OPENSSL_NO_AFALGENG" if ($disabled{afalgeng});
1583
1584# Finish up %config by appending things the user gave us on the command line
1585# apart from "make variables"
1586foreach (keys %useradd) {
1587    # The must all be lists, so we assert that here
1588    die "internal error: \$useradd{$_} isn't an ARRAY\n"
1589        unless ref $useradd{$_} eq 'ARRAY';
1590
1591    if (defined $config{$_}) {
1592        push @{$config{$_}}, @{$useradd{$_}};
1593    } else {
1594        $config{$_} = [ @{$useradd{$_}} ];
1595    }
1596}
1597
1598# ALL MODIFICATIONS TO %config and %target MUST BE DONE FROM HERE ON
1599
1600# If we use the unified build, collect information from build.info files
1601my %unified_info = ();
1602
1603my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
1604if ($builder eq "unified") {
1605    use with_fallback qw(Text::Template);
1606
1607    sub cleandir {
1608        my $base = shift;
1609        my $dir = shift;
1610        my $relativeto = shift || ".";
1611
1612        $dir = catdir($base,$dir) unless isabsolute($dir);
1613
1614        # Make sure the directories we're building in exists
1615        mkpath($dir);
1616
1617        my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
1618        #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
1619        return $res;
1620    }
1621
1622    sub cleanfile {
1623        my $base = shift;
1624        my $file = shift;
1625        my $relativeto = shift || ".";
1626
1627        $file = catfile($base,$file) unless isabsolute($file);
1628
1629        my $d = dirname($file);
1630        my $f = basename($file);
1631
1632        # Make sure the directories we're building in exists
1633        mkpath($d);
1634
1635        my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
1636        #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
1637        return $res;
1638    }
1639
1640    # Store the name of the template file we will build the build file from
1641    # in %config.  This may be useful for the build file itself.
1642    my @build_file_template_names =
1643	( $builder_platform."-".$target{build_file}.".tmpl",
1644	  $target{build_file}.".tmpl" );
1645    my @build_file_templates = ();
1646
1647    # First, look in the user provided directory, if given
1648    if (defined env($local_config_envname)) {
1649	@build_file_templates =
1650	    map {
1651		if ($^O eq 'VMS') {
1652		    # VMS environment variables are logical names,
1653		    # which can be used as is
1654		    $local_config_envname . ':' . $_;
1655		} else {
1656		    catfile(env($local_config_envname), $_);
1657		}
1658	    }
1659	    @build_file_template_names;
1660    }
1661    # Then, look in our standard directory
1662    push @build_file_templates,
1663	( map { cleanfile($srcdir, catfile("Configurations", $_), $blddir) }
1664	  @build_file_template_names );
1665
1666    my $build_file_template;
1667    for $_ (@build_file_templates) {
1668	$build_file_template = $_;
1669        last if -f $build_file_template;
1670
1671        $build_file_template = undef;
1672    }
1673    if (!defined $build_file_template) {
1674	die "*** Couldn't find any of:\n", join("\n", @build_file_templates), "\n";
1675    }
1676    $config{build_file_templates}
1677      = [ cleanfile($srcdir, catfile("Configurations", "common0.tmpl"),
1678                    $blddir),
1679          $build_file_template,
1680          cleanfile($srcdir, catfile("Configurations", "common.tmpl"),
1681                    $blddir) ];
1682
1683    my @build_infos = ( [ ".", "build.info" ] );
1684    foreach (@{$config{dirs}}) {
1685        push @build_infos, [ $_, "build.info" ]
1686            if (-f catfile($srcdir, $_, "build.info"));
1687    }
1688    foreach (@{$config{sdirs}}) {
1689        push @build_infos, [ catdir("crypto", $_), "build.info" ]
1690            if (-f catfile($srcdir, "crypto", $_, "build.info"));
1691    }
1692    foreach (@{$config{engdirs}}) {
1693        push @build_infos, [ catdir("engines", $_), "build.info" ]
1694            if (-f catfile($srcdir, "engines", $_, "build.info"));
1695    }
1696    foreach (@{$config{tdirs}}) {
1697        push @build_infos, [ catdir("test", $_), "build.info" ]
1698            if (-f catfile($srcdir, "test", $_, "build.info"));
1699    }
1700
1701    $config{build_infos} = [ ];
1702
1703    my %ordinals = ();
1704    foreach (@build_infos) {
1705        my $sourced = catdir($srcdir, $_->[0]);
1706        my $buildd = catdir($blddir, $_->[0]);
1707
1708        mkpath($buildd);
1709
1710        my $f = $_->[1];
1711        # The basic things we're trying to build
1712        my @programs = ();
1713        my @programs_install = ();
1714        my @libraries = ();
1715        my @libraries_install = ();
1716        my @engines = ();
1717        my @engines_install = ();
1718        my @scripts = ();
1719        my @scripts_install = ();
1720        my @extra = ();
1721        my @overrides = ();
1722        my @intermediates = ();
1723        my @rawlines = ();
1724
1725        my %sources = ();
1726        my %shared_sources = ();
1727        my %includes = ();
1728        my %depends = ();
1729        my %renames = ();
1730        my %sharednames = ();
1731        my %generate = ();
1732
1733        # We want to detect configdata.pm in the source tree, so we
1734        # don't use it if the build tree is different.
1735        my $src_configdata = cleanfile($srcdir, "configdata.pm", $blddir);
1736
1737        push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
1738        my $template =
1739            Text::Template->new(TYPE => 'FILE',
1740                                SOURCE => catfile($sourced, $f),
1741                                PREPEND => qq{use lib "$FindBin::Bin/util/perl";});
1742        die "Something went wrong with $sourced/$f: $!\n" unless $template;
1743        my @text =
1744            split /^/m,
1745            $template->fill_in(HASH => { config => \%config,
1746                                         target => \%target,
1747                                         disabled => \%disabled,
1748                                         withargs => \%withargs,
1749                                         builddir => abs2rel($buildd, $blddir),
1750                                         sourcedir => abs2rel($sourced, $blddir),
1751                                         buildtop => abs2rel($blddir, $blddir),
1752                                         sourcetop => abs2rel($srcdir, $blddir) },
1753                               DELIMITERS => [ "{-", "-}" ]);
1754
1755        # The top item of this stack has the following values
1756        # -2 positive already run and we found ELSE (following ELSIF should fail)
1757        # -1 positive already run (skip until ENDIF)
1758        # 0 negatives so far (if we're at a condition, check it)
1759        # 1 last was positive (don't skip lines until next ELSE, ELSIF or ENDIF)
1760        # 2 positive ELSE (following ELSIF should fail)
1761        my @skip = ();
1762        collect_information(
1763            collect_from_array([ @text ],
1764                               qr/\\$/ => sub { my $l1 = shift; my $l2 = shift;
1765                                                $l1 =~ s/\\$//; $l1.$l2 }),
1766            # Info we're looking for
1767            qr/^\s*IF\[((?:\\.|[^\\\]])*)\]\s*$/
1768            => sub {
1769                if (! @skip || $skip[$#skip] > 0) {
1770                    push @skip, !! $1;
1771                } else {
1772                    push @skip, -1;
1773                }
1774            },
1775            qr/^\s*ELSIF\[((?:\\.|[^\\\]])*)\]\s*$/
1776            => sub { die "ELSIF out of scope" if ! @skip;
1777                     die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
1778                     $skip[$#skip] = -1 if $skip[$#skip] != 0;
1779                     $skip[$#skip] = !! $1
1780                         if $skip[$#skip] == 0; },
1781            qr/^\s*ELSE\s*$/
1782            => sub { die "ELSE out of scope" if ! @skip;
1783                     $skip[$#skip] = -2 if $skip[$#skip] != 0;
1784                     $skip[$#skip] = 2 if $skip[$#skip] == 0; },
1785            qr/^\s*ENDIF\s*$/
1786            => sub { die "ENDIF out of scope" if ! @skip;
1787                     pop @skip; },
1788            qr/^\s*PROGRAMS(_NO_INST)?\s*=\s*(.*)\s*$/
1789            => sub {
1790                if (!@skip || $skip[$#skip] > 0) {
1791                    my $install = $1;
1792                    my @x = tokenize($2);
1793                    push @programs, @x;
1794                    push @programs_install, @x unless $install;
1795                }
1796            },
1797            qr/^\s*LIBS(_NO_INST)?\s*=\s*(.*)\s*$/
1798            => sub {
1799                if (!@skip || $skip[$#skip] > 0) {
1800                    my $install = $1;
1801                    my @x = tokenize($2);
1802                    push @libraries, @x;
1803                    push @libraries_install, @x unless $install;
1804                }
1805            },
1806            qr/^\s*ENGINES(_NO_INST)?\s*=\s*(.*)\s*$/
1807            => sub {
1808                if (!@skip || $skip[$#skip] > 0) {
1809                    my $install = $1;
1810                    my @x = tokenize($2);
1811                    push @engines, @x;
1812                    push @engines_install, @x unless $install;
1813                }
1814            },
1815            qr/^\s*SCRIPTS(_NO_INST)?\s*=\s*(.*)\s*$/
1816            => sub {
1817                if (!@skip || $skip[$#skip] > 0) {
1818                    my $install = $1;
1819                    my @x = tokenize($2);
1820                    push @scripts, @x;
1821                    push @scripts_install, @x unless $install;
1822                }
1823            },
1824            qr/^\s*EXTRA\s*=\s*(.*)\s*$/
1825            => sub { push @extra, tokenize($1)
1826                         if !@skip || $skip[$#skip] > 0 },
1827            qr/^\s*OVERRIDES\s*=\s*(.*)\s*$/
1828            => sub { push @overrides, tokenize($1)
1829                         if !@skip || $skip[$#skip] > 0 },
1830
1831            qr/^\s*ORDINALS\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/,
1832            => sub { push @{$ordinals{$1}}, tokenize($2)
1833                         if !@skip || $skip[$#skip] > 0 },
1834            qr/^\s*SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1835            => sub { push @{$sources{$1}}, tokenize($2)
1836                         if !@skip || $skip[$#skip] > 0 },
1837            qr/^\s*SHARED_SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1838            => sub { push @{$shared_sources{$1}}, tokenize($2)
1839                         if !@skip || $skip[$#skip] > 0 },
1840            qr/^\s*INCLUDE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1841            => sub { push @{$includes{$1}}, tokenize($2)
1842                         if !@skip || $skip[$#skip] > 0 },
1843            qr/^\s*DEPEND\[((?:\\.|[^\\\]])*)\]\s*=\s*(.*)\s*$/
1844            => sub { push @{$depends{$1}}, tokenize($2)
1845                         if !@skip || $skip[$#skip] > 0 },
1846            qr/^\s*GENERATE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1847            => sub { push @{$generate{$1}}, $2
1848                         if !@skip || $skip[$#skip] > 0 },
1849            qr/^\s*RENAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1850            => sub { push @{$renames{$1}}, tokenize($2)
1851                         if !@skip || $skip[$#skip] > 0 },
1852            qr/^\s*SHARED_NAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1853            => sub { push @{$sharednames{$1}}, tokenize($2)
1854                         if !@skip || $skip[$#skip] > 0 },
1855            qr/^\s*BEGINRAW\[((?:\\.|[^\\\]])+)\]\s*$/
1856            => sub {
1857                my $lineiterator = shift;
1858                my $target_kind = $1;
1859                while (defined $lineiterator->()) {
1860                    s|\R$||;
1861                    if (/^\s*ENDRAW\[((?:\\.|[^\\\]])+)\]\s*$/) {
1862                        die "ENDRAW doesn't match BEGINRAW"
1863                            if $1 ne $target_kind;
1864                        last;
1865                    }
1866                    next if @skip && $skip[$#skip] <= 0;
1867                    push @rawlines,  $_
1868                        if ($target_kind eq $target{build_file}
1869                            || $target_kind eq $target{build_file}."(".$builder_platform.")");
1870                }
1871            },
1872            qr/^\s*(?:#.*)?$/ => sub { },
1873            "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
1874            "BEFORE" => sub {
1875                if ($buildinfo_debug) {
1876                    print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
1877                    print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1878                }
1879            },
1880            "AFTER" => sub {
1881                if ($buildinfo_debug) {
1882                    print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1883                }
1884            },
1885            );
1886        die "runaway IF?" if (@skip);
1887
1888        foreach (keys %renames) {
1889            die "$_ renamed to more than one thing: "
1890                ,join(" ", @{$renames{$_}}),"\n"
1891                if scalar @{$renames{$_}} > 1;
1892            my $dest = cleanfile($buildd, $_, $blddir);
1893            my $to = cleanfile($buildd, $renames{$_}->[0], $blddir);
1894            die "$dest renamed to more than one thing: "
1895                ,$unified_info{rename}->{$dest}, $to
1896                unless !defined($unified_info{rename}->{$dest})
1897                or $unified_info{rename}->{$dest} eq $to;
1898            $unified_info{rename}->{$dest} = $to;
1899        }
1900
1901        foreach (@programs) {
1902            my $program = cleanfile($buildd, $_, $blddir);
1903            if ($unified_info{rename}->{$program}) {
1904                $program = $unified_info{rename}->{$program};
1905            }
1906            $unified_info{programs}->{$program} = 1;
1907        }
1908
1909        foreach (@programs_install) {
1910            my $program = cleanfile($buildd, $_, $blddir);
1911            if ($unified_info{rename}->{$program}) {
1912                $program = $unified_info{rename}->{$program};
1913            }
1914            $unified_info{install}->{programs}->{$program} = 1;
1915        }
1916
1917        foreach (@libraries) {
1918            my $library = cleanfile($buildd, $_, $blddir);
1919            if ($unified_info{rename}->{$library}) {
1920                $library = $unified_info{rename}->{$library};
1921            }
1922            $unified_info{libraries}->{$library} = 1;
1923        }
1924
1925        foreach (@libraries_install) {
1926            my $library = cleanfile($buildd, $_, $blddir);
1927            if ($unified_info{rename}->{$library}) {
1928                $library = $unified_info{rename}->{$library};
1929            }
1930            $unified_info{install}->{libraries}->{$library} = 1;
1931        }
1932
1933        die <<"EOF" if scalar @engines and !$config{dynamic_engines};
1934ENGINES can only be used if configured with 'dynamic-engine'.
1935This is usually a fault in a build.info file.
1936EOF
1937        foreach (@engines) {
1938            my $library = cleanfile($buildd, $_, $blddir);
1939            if ($unified_info{rename}->{$library}) {
1940                $library = $unified_info{rename}->{$library};
1941            }
1942            $unified_info{engines}->{$library} = 1;
1943        }
1944
1945        foreach (@engines_install) {
1946            my $library = cleanfile($buildd, $_, $blddir);
1947            if ($unified_info{rename}->{$library}) {
1948                $library = $unified_info{rename}->{$library};
1949            }
1950            $unified_info{install}->{engines}->{$library} = 1;
1951        }
1952
1953        foreach (@scripts) {
1954            my $script = cleanfile($buildd, $_, $blddir);
1955            if ($unified_info{rename}->{$script}) {
1956                $script = $unified_info{rename}->{$script};
1957            }
1958            $unified_info{scripts}->{$script} = 1;
1959        }
1960
1961        foreach (@scripts_install) {
1962            my $script = cleanfile($buildd, $_, $blddir);
1963            if ($unified_info{rename}->{$script}) {
1964                $script = $unified_info{rename}->{$script};
1965            }
1966            $unified_info{install}->{scripts}->{$script} = 1;
1967        }
1968
1969        foreach (@extra) {
1970            my $extra = cleanfile($buildd, $_, $blddir);
1971            $unified_info{extra}->{$extra} = 1;
1972        }
1973
1974        foreach (@overrides) {
1975            my $override = cleanfile($buildd, $_, $blddir);
1976            $unified_info{overrides}->{$override} = 1;
1977        }
1978
1979        push @{$unified_info{rawlines}}, @rawlines;
1980
1981        unless ($disabled{shared}) {
1982            # Check sharednames.
1983            foreach (keys %sharednames) {
1984                my $dest = cleanfile($buildd, $_, $blddir);
1985                if ($unified_info{rename}->{$dest}) {
1986                    $dest = $unified_info{rename}->{$dest};
1987                }
1988                die "shared_name for $dest with multiple values: "
1989                    ,join(" ", @{$sharednames{$_}}),"\n"
1990                    if scalar @{$sharednames{$_}} > 1;
1991                my $to = cleanfile($buildd, $sharednames{$_}->[0], $blddir);
1992                die "shared_name found for a library $dest that isn't defined\n"
1993                    unless $unified_info{libraries}->{$dest};
1994                die "shared_name for $dest with multiple values: "
1995                    ,$unified_info{sharednames}->{$dest}, ", ", $to
1996                    unless !defined($unified_info{sharednames}->{$dest})
1997                    or $unified_info{sharednames}->{$dest} eq $to;
1998                $unified_info{sharednames}->{$dest} = $to;
1999            }
2000
2001            # Additionally, we set up sharednames for libraries that don't
2002            # have any, as themselves.  Only for libraries that aren't
2003            # explicitly static.
2004            foreach (grep !/\.a$/, keys %{$unified_info{libraries}}) {
2005                if (!defined $unified_info{sharednames}->{$_}) {
2006                    $unified_info{sharednames}->{$_} = $_
2007                }
2008            }
2009
2010            # Check that we haven't defined any library as both shared and
2011            # explicitly static.  That is forbidden.
2012            my @doubles = ();
2013            foreach (grep /\.a$/, keys %{$unified_info{libraries}}) {
2014                (my $l = $_) =~ s/\.a$//;
2015                push @doubles, $l if defined $unified_info{sharednames}->{$l};
2016            }
2017            die "these libraries are both explicitly static and shared:\n  ",
2018                join(" ", @doubles), "\n"
2019                if @doubles;
2020        }
2021
2022        foreach (keys %sources) {
2023            my $dest = $_;
2024            my $ddest = cleanfile($buildd, $_, $blddir);
2025            if ($unified_info{rename}->{$ddest}) {
2026                $ddest = $unified_info{rename}->{$ddest};
2027            }
2028            foreach (@{$sources{$dest}}) {
2029                my $s = cleanfile($sourced, $_, $blddir);
2030
2031                # If it isn't in the source tree, we assume it's generated
2032                # in the build tree
2033                if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
2034                    $s = cleanfile($buildd, $_, $blddir);
2035                }
2036                # We recognise C++, C and asm files
2037                if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2038                    my $o = $_;
2039                    $o =~ s/\.[csS]$/.o/; # C and assembler
2040                    $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2041                    $o = cleanfile($buildd, $o, $blddir);
2042                    $unified_info{sources}->{$ddest}->{$o} = 1;
2043                    $unified_info{sources}->{$o}->{$s} = 1;
2044                } elsif ($s =~ /\.rc$/) {
2045                    # We also recognise resource files
2046                    my $o = $_;
2047                    $o =~ s/\.rc$/.res/; # Resource configuration
2048                    my $o = cleanfile($buildd, $o, $blddir);
2049                    $unified_info{sources}->{$ddest}->{$o} = 1;
2050                    $unified_info{sources}->{$o}->{$s} = 1;
2051                } else {
2052                    $unified_info{sources}->{$ddest}->{$s} = 1;
2053                }
2054            }
2055        }
2056
2057        foreach (keys %shared_sources) {
2058            my $dest = $_;
2059            my $ddest = cleanfile($buildd, $_, $blddir);
2060            if ($unified_info{rename}->{$ddest}) {
2061                $ddest = $unified_info{rename}->{$ddest};
2062            }
2063            foreach (@{$shared_sources{$dest}}) {
2064                my $s = cleanfile($sourced, $_, $blddir);
2065
2066                # If it isn't in the source tree, we assume it's generated
2067                # in the build tree
2068                if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
2069                    $s = cleanfile($buildd, $_, $blddir);
2070                }
2071
2072                if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2073                    # We recognise C++, C and asm files
2074                    my $o = $_;
2075                    $o =~ s/\.[csS]$/.o/; # C and assembler
2076                    $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2077                    $o = cleanfile($buildd, $o, $blddir);
2078                    $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2079                    $unified_info{sources}->{$o}->{$s} = 1;
2080                } elsif ($s =~ /\.rc$/) {
2081                    # We also recognise resource files
2082                    my $o = $_;
2083                    $o =~ s/\.rc$/.res/; # Resource configuration
2084                    my $o = cleanfile($buildd, $o, $blddir);
2085                    $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2086                    $unified_info{sources}->{$o}->{$s} = 1;
2087                } elsif ($s =~ /\.(def|map|opt)$/) {
2088                    # We also recognise .def / .map / .opt files
2089                    # We know they are generated files
2090                    my $def = cleanfile($buildd, $s, $blddir);
2091                    $unified_info{shared_sources}->{$ddest}->{$def} = 1;
2092                } else {
2093                    die "unrecognised source file type for shared library: $s\n";
2094                }
2095            }
2096        }
2097
2098        foreach (keys %generate) {
2099            my $dest = $_;
2100            my $ddest = cleanfile($buildd, $_, $blddir);
2101            if ($unified_info{rename}->{$ddest}) {
2102                $ddest = $unified_info{rename}->{$ddest};
2103            }
2104            die "more than one generator for $dest: "
2105                    ,join(" ", @{$generate{$_}}),"\n"
2106                    if scalar @{$generate{$_}} > 1;
2107            my @generator = split /\s+/, $generate{$dest}->[0];
2108            $generator[0] = cleanfile($sourced, $generator[0], $blddir),
2109            $unified_info{generate}->{$ddest} = [ @generator ];
2110        }
2111
2112        foreach (keys %depends) {
2113            my $dest = $_;
2114            my $ddest = $dest eq "" ? "" : cleanfile($sourced, $_, $blddir);
2115
2116            # If the destination doesn't exist in source, it can only be
2117            # a generated file in the build tree.
2118            if ($ddest ne "" && ($ddest eq $src_configdata || ! -f $ddest)) {
2119                $ddest = cleanfile($buildd, $_, $blddir);
2120                if ($unified_info{rename}->{$ddest}) {
2121                    $ddest = $unified_info{rename}->{$ddest};
2122                }
2123            }
2124            foreach (@{$depends{$dest}}) {
2125                my $d = cleanfile($sourced, $_, $blddir);
2126
2127                # If we know it's generated, or assume it is because we can't
2128                # find it in the source tree, we set file we depend on to be
2129                # in the build tree rather than the source tree, and assume
2130                # and that there are lines to build it in a BEGINRAW..ENDRAW
2131                # section or in the Makefile template.
2132                if ($d eq $src_configdata
2133                    || ! -f $d
2134                    || (grep { $d eq $_ }
2135                        map { cleanfile($srcdir, $_, $blddir) }
2136                        grep { /\.h$/ } keys %{$unified_info{generate}})) {
2137                    $d = cleanfile($buildd, $_, $blddir);
2138                }
2139                # Take note if the file to depend on is being renamed
2140                # Take extra care with files ending with .a, they should
2141                # be treated without that extension, and the extension
2142                # should be added back after treatment.
2143                $d =~ /(\.a)?$/;
2144                my $e = $1 // "";
2145                $d = $`;
2146                if ($unified_info{rename}->{$d}) {
2147                    $d = $unified_info{rename}->{$d};
2148                }
2149                $d .= $e;
2150                $unified_info{depends}->{$ddest}->{$d} = 1;
2151            }
2152        }
2153
2154        foreach (keys %includes) {
2155            my $dest = $_;
2156            my $ddest = cleanfile($sourced, $_, $blddir);
2157
2158            # If the destination doesn't exist in source, it can only be
2159            # a generated file in the build tree.
2160            if ($ddest eq $src_configdata || ! -f $ddest) {
2161                $ddest = cleanfile($buildd, $_, $blddir);
2162                if ($unified_info{rename}->{$ddest}) {
2163                    $ddest = $unified_info{rename}->{$ddest};
2164                }
2165            }
2166            foreach (@{$includes{$dest}}) {
2167                my $is = cleandir($sourced, $_, $blddir);
2168                my $ib = cleandir($buildd, $_, $blddir);
2169                push @{$unified_info{includes}->{$ddest}->{source}}, $is
2170                    unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
2171                push @{$unified_info{includes}->{$ddest}->{build}}, $ib
2172                    unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
2173            }
2174        }
2175    }
2176
2177    my $ordinals_text = join(', ', sort keys %ordinals);
2178    warn <<"EOF" if $ordinals_text;
2179
2180WARNING: ORDINALS were specified for $ordinals_text
2181They are ignored and should be replaced with a combination of GENERATE,
2182DEPEND and SHARED_SOURCE.
2183EOF
2184
2185    # Massage the result
2186
2187    # If the user configured no-shared, we allow no shared sources
2188    if ($disabled{shared}) {
2189        foreach (keys %{$unified_info{shared_sources}}) {
2190            foreach (keys %{$unified_info{shared_sources}->{$_}}) {
2191                delete $unified_info{sources}->{$_};
2192            }
2193        }
2194        $unified_info{shared_sources} = {};
2195    }
2196
2197    # If we depend on a header file or a perl module, add an inclusion of
2198    # its directory to allow smoothe inclusion
2199    foreach my $dest (keys %{$unified_info{depends}}) {
2200        next if $dest eq "";
2201        foreach my $d (keys %{$unified_info{depends}->{$dest}}) {
2202            next unless $d =~ /\.(h|pm)$/;
2203            my $i = dirname($d);
2204            my $spot =
2205                $d eq "configdata.pm" || defined($unified_info{generate}->{$d})
2206                ? 'build' : 'source';
2207            push @{$unified_info{includes}->{$dest}->{$spot}}, $i
2208                unless grep { $_ eq $i } @{$unified_info{includes}->{$dest}->{$spot}};
2209        }
2210    }
2211
2212    # Trickle down includes placed on libraries, engines and programs to
2213    # their sources (i.e. object files)
2214    foreach my $dest (keys %{$unified_info{engines}},
2215                      keys %{$unified_info{libraries}},
2216                      keys %{$unified_info{programs}}) {
2217        foreach my $k (("source", "build")) {
2218            next unless defined($unified_info{includes}->{$dest}->{$k});
2219            my @incs = reverse @{$unified_info{includes}->{$dest}->{$k}};
2220            foreach my $obj (grep /\.o$/,
2221                             (keys %{$unified_info{sources}->{$dest} // {}},
2222                              keys %{$unified_info{shared_sources}->{$dest} // {}})) {
2223                foreach my $inc (@incs) {
2224                    unshift @{$unified_info{includes}->{$obj}->{$k}}, $inc
2225                        unless grep { $_ eq $inc } @{$unified_info{includes}->{$obj}->{$k}};
2226                }
2227            }
2228        }
2229        delete $unified_info{includes}->{$dest};
2230    }
2231
2232    ### Make unified_info a bit more efficient
2233    # One level structures
2234    foreach (("programs", "libraries", "engines", "scripts", "extra", "overrides")) {
2235        $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
2236    }
2237    # Two level structures
2238    foreach my $l1 (("install", "sources", "shared_sources", "ldadd", "depends")) {
2239        foreach my $l2 (sort keys %{$unified_info{$l1}}) {
2240            $unified_info{$l1}->{$l2} =
2241                [ sort keys %{$unified_info{$l1}->{$l2}} ];
2242        }
2243    }
2244    # Includes
2245    foreach my $dest (sort keys %{$unified_info{includes}}) {
2246        if (defined($unified_info{includes}->{$dest}->{build})) {
2247            my @source_includes = ();
2248            @source_includes = ( @{$unified_info{includes}->{$dest}->{source}} )
2249                if defined($unified_info{includes}->{$dest}->{source});
2250            $unified_info{includes}->{$dest} =
2251                [ @{$unified_info{includes}->{$dest}->{build}} ];
2252            foreach my $inc (@source_includes) {
2253                push @{$unified_info{includes}->{$dest}}, $inc
2254                    unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
2255            }
2256        } else {
2257            $unified_info{includes}->{$dest} =
2258                [ @{$unified_info{includes}->{$dest}->{source}} ];
2259        }
2260    }
2261
2262    # For convenience collect information regarding directories where
2263    # files are generated, those generated files and the end product
2264    # they end up in where applicable.  Then, add build rules for those
2265    # directories
2266    my %loopinfo = ( "lib" => [ @{$unified_info{libraries}} ],
2267                     "dso" => [ @{$unified_info{engines}} ],
2268                     "bin" => [ @{$unified_info{programs}} ],
2269                     "script" => [ @{$unified_info{scripts}} ] );
2270    foreach my $type (keys %loopinfo) {
2271        foreach my $product (@{$loopinfo{$type}}) {
2272            my %dirs = ();
2273            my $pd = dirname($product);
2274
2275            foreach (@{$unified_info{sources}->{$product} // []},
2276                     @{$unified_info{shared_sources}->{$product} // []}) {
2277                my $d = dirname($_);
2278
2279                # We don't want to create targets for source directories
2280                # when building out of source
2281                next if ($config{sourcedir} ne $config{builddir}
2282                             && $d =~ m|^\Q$config{sourcedir}\E|);
2283                # We already have a "test" target, and the current directory
2284                # is just silly to make a target for
2285                next if $d eq "test" || $d eq ".";
2286
2287                $dirs{$d} = 1;
2288                push @{$unified_info{dirinfo}->{$d}->{deps}}, $_
2289                    if $d ne $pd;
2290            }
2291            foreach (keys %dirs) {
2292                push @{$unified_info{dirinfo}->{$_}->{products}->{$type}},
2293                    $product;
2294            }
2295        }
2296    }
2297}
2298
2299# For the schemes that need it, we provide the old *_obj configs
2300# from the *_asm_obj ones
2301foreach (grep /_(asm|aux)_src$/, keys %target) {
2302    my $src = $_;
2303    (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
2304    $target{$obj} = $target{$src};
2305    $target{$obj} =~ s/\.[csS]\b/.o/g; # C and assembler
2306    $target{$obj} =~ s/\.(cc|cpp)\b/_cc.o/g; # C++
2307}
2308
2309# Write down our configuration where it fits #########################
2310
2311print "Creating configdata.pm\n";
2312open(OUT,">configdata.pm") || die "unable to create configdata.pm: $!\n";
2313print OUT <<"EOF";
2314#! $config{HASHBANGPERL}
2315
2316package configdata;
2317
2318use strict;
2319use warnings;
2320
2321use Exporter;
2322#use vars qw(\@ISA \@EXPORT);
2323our \@ISA = qw(Exporter);
2324our \@EXPORT = qw(\%config \%target \%disabled \%withargs \%unified_info \@disablables);
2325
2326EOF
2327print OUT "our %config = (\n";
2328foreach (sort keys %config) {
2329    if (ref($config{$_}) eq "ARRAY") {
2330	print OUT "  ", $_, " => [ ", join(", ",
2331					   map { quotify("perl", $_) }
2332					   @{$config{$_}}), " ],\n";
2333    } elsif (ref($config{$_}) eq "HASH") {
2334	print OUT "  ", $_, " => {";
2335        if (scalar keys %{$config{$_}} > 0) {
2336            print OUT "\n";
2337            foreach my $key (sort keys %{$config{$_}}) {
2338                print OUT "      ",
2339                    join(" => ",
2340                         quotify("perl", $key),
2341                         defined $config{$_}->{$key}
2342                             ? quotify("perl", $config{$_}->{$key})
2343                             : "undef");
2344                print OUT ",\n";
2345            }
2346            print OUT "  ";
2347        }
2348        print OUT "},\n";
2349    } else {
2350	print OUT "  ", $_, " => ", quotify("perl", $config{$_}), ",\n"
2351    }
2352}
2353print OUT <<"EOF";
2354);
2355
2356EOF
2357print OUT "our %target = (\n";
2358foreach (sort keys %target) {
2359    if (ref($target{$_}) eq "ARRAY") {
2360	print OUT "  ", $_, " => [ ", join(", ",
2361					   map { quotify("perl", $_) }
2362					   @{$target{$_}}), " ],\n";
2363    } else {
2364	print OUT "  ", $_, " => ", quotify("perl", $target{$_}), ",\n"
2365    }
2366}
2367print OUT <<"EOF";
2368);
2369
2370EOF
2371print OUT "our \%available_protocols = (\n";
2372print OUT "  tls => [ ", join(", ", map { quotify("perl", $_) } @tls), " ],\n";
2373print OUT "  dtls => [ ", join(", ", map { quotify("perl", $_) } @dtls), " ],\n";
2374print OUT <<"EOF";
2375);
2376
2377EOF
2378print OUT "our \@disablables = (\n";
2379foreach (@disablables) {
2380    print OUT "  ", quotify("perl", $_), ",\n";
2381}
2382print OUT <<"EOF";
2383);
2384
2385EOF
2386print OUT "our \%disabled = (\n";
2387foreach (sort keys %disabled) {
2388    print OUT "  ", quotify("perl", $_), " => ", quotify("perl", $disabled{$_}), ",\n";
2389}
2390print OUT <<"EOF";
2391);
2392
2393EOF
2394print OUT "our %withargs = (\n";
2395foreach (sort keys %withargs) {
2396    if (ref($withargs{$_}) eq "ARRAY") {
2397	print OUT "  ", $_, " => [ ", join(", ",
2398					   map { quotify("perl", $_) }
2399					   @{$withargs{$_}}), " ],\n";
2400    } else {
2401	print OUT "  ", $_, " => ", quotify("perl", $withargs{$_}), ",\n"
2402    }
2403}
2404print OUT <<"EOF";
2405);
2406
2407EOF
2408if ($builder eq "unified") {
2409    my $recurse;
2410    $recurse = sub {
2411        my $indent = shift;
2412        foreach (@_) {
2413            if (ref $_ eq "ARRAY") {
2414                print OUT " "x$indent, "[\n";
2415                foreach (@$_) {
2416                    $recurse->($indent + 4, $_);
2417                }
2418                print OUT " "x$indent, "],\n";
2419            } elsif (ref $_ eq "HASH") {
2420                my %h = %$_;
2421                print OUT " "x$indent, "{\n";
2422                foreach (sort keys %h) {
2423                    if (ref $h{$_} eq "") {
2424                        print OUT " "x($indent + 4), quotify("perl", $_), " => ", quotify("perl", $h{$_}), ",\n";
2425                    } else {
2426                        print OUT " "x($indent + 4), quotify("perl", $_), " =>\n";
2427                        $recurse->($indent + 8, $h{$_});
2428                    }
2429                }
2430                print OUT " "x$indent, "},\n";
2431            } else {
2432                print OUT " "x$indent, quotify("perl", $_), ",\n";
2433            }
2434        }
2435    };
2436    print OUT "our %unified_info = (\n";
2437    foreach (sort keys %unified_info) {
2438        if (ref $unified_info{$_} eq "") {
2439            print OUT " "x4, quotify("perl", $_), " => ", quotify("perl", $unified_info{$_}), ",\n";
2440        } else {
2441            print OUT " "x4, quotify("perl", $_), " =>\n";
2442            $recurse->(8, $unified_info{$_});
2443        }
2444    }
2445    print OUT <<"EOF";
2446);
2447
2448EOF
2449}
2450print OUT
2451    "# The following data is only used when this files is use as a script\n";
2452print OUT "my \@makevars = (\n";
2453foreach (sort keys %user) {
2454    print OUT "    '",$_,"',\n";
2455}
2456print OUT ");\n";
2457print OUT "my \%disabled_info = (\n";
2458foreach my $what (sort keys %disabled_info) {
2459    print OUT "    '$what' => {\n";
2460    foreach my $info (sort keys %{$disabled_info{$what}}) {
2461        if (ref $disabled_info{$what}->{$info} eq 'ARRAY') {
2462            print OUT "        $info => [ ",
2463                join(', ', map { "'$_'" } @{$disabled_info{$what}->{$info}}),
2464                " ],\n";
2465        } else {
2466            print OUT "        $info => '", $disabled_info{$what}->{$info},
2467                "',\n";
2468        }
2469    }
2470    print OUT "    },\n";
2471}
2472print OUT ");\n";
2473print OUT 'my @user_crossable = qw( ', join (' ', @user_crossable), " );\n";
2474print OUT << 'EOF';
2475# If run directly, we can give some answers, and even reconfigure
2476unless (caller) {
2477    use Getopt::Long;
2478    use File::Spec::Functions;
2479    use File::Basename;
2480    use Pod::Usage;
2481
2482    my $here = dirname($0);
2483
2484    my $dump = undef;
2485    my $cmdline = undef;
2486    my $options = undef;
2487    my $target = undef;
2488    my $envvars = undef;
2489    my $makevars = undef;
2490    my $buildparams = undef;
2491    my $reconf = undef;
2492    my $verbose = undef;
2493    my $help = undef;
2494    my $man = undef;
2495    GetOptions('dump|d'                 => \$dump,
2496               'command-line|c'         => \$cmdline,
2497               'options|o'              => \$options,
2498               'target|t'               => \$target,
2499               'environment|e'          => \$envvars,
2500               'make-variables|m'       => \$makevars,
2501               'build-parameters|b'     => \$buildparams,
2502               'reconfigure|reconf|r'   => \$reconf,
2503               'verbose|v'              => \$verbose,
2504               'help'                   => \$help,
2505               'man'                    => \$man)
2506        or die "Errors in command line arguments\n";
2507
2508    unless ($dump || $cmdline || $options || $target || $envvars || $makevars
2509            || $buildparams || $reconf || $verbose || $help || $man) {
2510        print STDERR <<"_____";
2511You must give at least one option.
2512For more information, do '$0 --help'
2513_____
2514        exit(2);
2515    }
2516
2517    if ($help) {
2518        pod2usage(-exitval => 0,
2519                  -verbose => 1);
2520    }
2521    if ($man) {
2522        pod2usage(-exitval => 0,
2523                  -verbose => 2);
2524    }
2525    if ($dump || $cmdline) {
2526        print "\nCommand line (with current working directory = $here):\n\n";
2527        print '    ',join(' ',
2528                          $config{PERL},
2529                          catfile($config{sourcedir}, 'Configure'),
2530                          @{$config{perlargv}}), "\n";
2531        print "\nPerl information:\n\n";
2532        print '    ',$config{perl_cmd},"\n";
2533        print '    ',$config{perl_version},' for ',$config{perl_archname},"\n";
2534    }
2535    if ($dump || $options) {
2536        my $longest = 0;
2537        my $longest2 = 0;
2538        foreach my $what (@disablables) {
2539            $longest = length($what) if $longest < length($what);
2540            $longest2 = length($disabled{$what})
2541                if $disabled{$what} && $longest2 < length($disabled{$what});
2542        }
2543        print "\nEnabled features:\n\n";
2544        foreach my $what (@disablables) {
2545            print "    $what\n" unless $disabled{$what};
2546        }
2547        print "\nDisabled features:\n\n";
2548        foreach my $what (@disablables) {
2549            if ($disabled{$what}) {
2550                print "    $what", ' ' x ($longest - length($what) + 1),
2551                    "[$disabled{$what}]", ' ' x ($longest2 - length($disabled{$what}) + 1);
2552                print $disabled_info{$what}->{macro}
2553                    if $disabled_info{$what}->{macro};
2554                print ' (skip ',
2555                    join(', ', @{$disabled_info{$what}->{skipped}}),
2556                    ')'
2557                    if $disabled_info{$what}->{skipped};
2558                print "\n";
2559            }
2560        }
2561    }
2562    if ($dump || $target) {
2563        print "\nConfig target attributes:\n\n";
2564        foreach (sort keys %target) {
2565            next if $_ =~ m|^_| || $_ eq 'template';
2566            my $quotify = sub {
2567                map { (my $x = $_) =~ s|([\\\$\@"])|\\$1|g; "\"$x\""} @_;
2568            };
2569            print '    ', $_, ' => ';
2570            if (ref($target{$_}) eq "ARRAY") {
2571                print '[ ', join(', ', $quotify->(@{$target{$_}})), " ],\n";
2572            } else {
2573                print $quotify->($target{$_}), ",\n"
2574            }
2575        }
2576    }
2577    if ($dump || $envvars) {
2578        print "\nRecorded environment:\n\n";
2579        foreach (sort keys %{$config{perlenv}}) {
2580            print '    ',$_,' = ',($config{perlenv}->{$_} || ''),"\n";
2581        }
2582    }
2583    if ($dump || $makevars) {
2584        print "\nMakevars:\n\n";
2585        foreach my $var (@makevars) {
2586            my $prefix = '';
2587            $prefix = $config{CROSS_COMPILE}
2588                if grep { $var eq $_ } @user_crossable;
2589            $prefix //= '';
2590            print '    ',$var,' ' x (16 - length $var),'= ',
2591                (ref $config{$var} eq 'ARRAY'
2592                 ? join(' ', @{$config{$var}})
2593                 : $prefix.$config{$var}),
2594                "\n"
2595                if defined $config{$var};
2596        }
2597
2598        my @buildfile = ($config{builddir}, $config{build_file});
2599        unshift @buildfile, $here
2600            unless file_name_is_absolute($config{builddir});
2601        my $buildfile = canonpath(catdir(@buildfile));
2602        print <<"_____";
2603
2604NOTE: These variables only represent the configuration view.  The build file
2605template may have processed these variables further, please have a look at the
2606build file for more exact data:
2607    $buildfile
2608_____
2609    }
2610    if ($dump || $buildparams) {
2611        my @buildfile = ($config{builddir}, $config{build_file});
2612        unshift @buildfile, $here
2613            unless file_name_is_absolute($config{builddir});
2614        print "\nbuild file:\n\n";
2615        print "    ", canonpath(catfile(@buildfile)),"\n";
2616
2617        print "\nbuild file templates:\n\n";
2618        foreach (@{$config{build_file_templates}}) {
2619            my @tmpl = ($_);
2620            unshift @tmpl, $here
2621                unless file_name_is_absolute($config{sourcedir});
2622            print '    ',canonpath(catfile(@tmpl)),"\n";
2623        }
2624    }
2625    if ($reconf) {
2626        if ($verbose) {
2627            print 'Reconfiguring with: ', join(' ',@{$config{perlargv}}), "\n";
2628	    foreach (sort keys %{$config{perlenv}}) {
2629	        print '    ',$_,' = ',($config{perlenv}->{$_} || ""),"\n";
2630	    }
2631        }
2632
2633        chdir $here;
2634        exec $^X,catfile($config{sourcedir}, 'Configure'),'reconf';
2635    }
2636}
2637
26381;
2639
2640__END__
2641
2642=head1 NAME
2643
2644configdata.pm - configuration data for OpenSSL builds
2645
2646=head1 SYNOPSIS
2647
2648Interactive:
2649
2650  perl configdata.pm [options]
2651
2652As data bank module:
2653
2654  use configdata;
2655
2656=head1 DESCRIPTION
2657
2658This module can be used in two modes, interactively and as a module containing
2659all the data recorded by OpenSSL's Configure script.
2660
2661When used interactively, simply run it as any perl script, with at least one
2662option, and you will get the information you ask for.  See L</OPTIONS> below.
2663
2664When loaded as a module, you get a few databanks with useful information to
2665perform build related tasks.  The databanks are:
2666
2667    %config             Configured things.
2668    %target             The OpenSSL config target with all inheritances
2669                        resolved.
2670    %disabled           The features that are disabled.
2671    @disablables        The list of features that can be disabled.
2672    %withargs           All data given through --with-THING options.
2673    %unified_info       All information that was computed from the build.info
2674                        files.
2675
2676=head1 OPTIONS
2677
2678=over 4
2679
2680=item B<--help>
2681
2682Print a brief help message and exit.
2683
2684=item B<--man>
2685
2686Print the manual page and exit.
2687
2688=item B<--dump> | B<-d>
2689
2690Print all relevant configuration data.  This is equivalent to B<--command-line>
2691B<--options> B<--target> B<--environment> B<--make-variables>
2692B<--build-parameters>.
2693
2694=item B<--command-line> | B<-c>
2695
2696Print the current configuration command line.
2697
2698=item B<--options> | B<-o>
2699
2700Print the features, both enabled and disabled, and display defined macro and
2701skipped directories where applicable.
2702
2703=item B<--target> | B<-t>
2704
2705Print the config attributes for this config target.
2706
2707=item B<--environment> | B<-e>
2708
2709Print the environment variables and their values at the time of configuration.
2710
2711=item B<--make-variables> | B<-m>
2712
2713Print the main make variables generated in the current configuration
2714
2715=item B<--build-parameters> | B<-b>
2716
2717Print the build parameters, i.e. build file and build file templates.
2718
2719=item B<--reconfigure> | B<--reconf> | B<-r>
2720
2721Redo the configuration.
2722
2723=item B<--verbose> | B<-v>
2724
2725Verbose output.
2726
2727=back
2728
2729=cut
2730
2731EOF
2732close(OUT);
2733if ($builder_platform eq 'unix') {
2734    my $mode = (0755 & ~umask);
2735    chmod $mode, 'configdata.pm'
2736        or warn sprintf("WARNING: Couldn't change mode for 'configdata.pm' to 0%03o: %s\n",$mode,$!);
2737}
2738
2739my %builders = (
2740    unified => sub {
2741        print 'Creating ',$target{build_file},"\n";
2742        run_dofile(catfile($blddir, $target{build_file}),
2743                   @{$config{build_file_templates}});
2744    },
2745    );
2746
2747$builders{$builder}->($builder_platform, @builder_opts);
2748
2749$SIG{__DIE__} = $orig_death_handler;
2750
2751print <<"EOF" if ($disabled{threads} eq "unavailable");
2752
2753The library could not be configured for supporting multi-threaded
2754applications as the compiler options required on this system are not known.
2755See file INSTALL for details if you need multi-threading.
2756EOF
2757
2758print <<"EOF" if ($no_shared_warn);
2759
2760The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
2761platform, so we will pretend you gave the option 'no-pic', which also disables
2762'shared' and 'dynamic-engine'.  If you know how to implement shared libraries
2763or position independent code, please let us know (but please first make sure
2764you have tried with a current version of OpenSSL).
2765EOF
2766
2767print <<"EOF";
2768
2769**********************************************************************
2770***                                                                ***
2771***   OpenSSL has been successfully configured                     ***
2772***                                                                ***
2773***   If you encounter a problem while building, please open an    ***
2774***   issue on GitHub <https://github.com/openssl/openssl/issues>  ***
2775***   and include the output from the following command:           ***
2776***                                                                ***
2777***       perl configdata.pm --dump                                ***
2778***                                                                ***
2779***   (If you are new to OpenSSL, you might want to consult the    ***
2780***   'Troubleshooting' section in the INSTALL file first)         ***
2781***                                                                ***
2782**********************************************************************
2783EOF
2784
2785exit(0);
2786
2787######################################################################
2788#
2789# Helpers and utility functions
2790#
2791
2792# Death handler, to print a helpful message in case of failure #######
2793#
2794sub death_handler {
2795    die @_ if $^S;              # To prevent the added message in eval blocks
2796    my $build_file = $target{build_file} // "build file";
2797    my @message = ( <<"_____", @_ );
2798
2799Failure!  $build_file wasn't produced.
2800Please read INSTALL and associated NOTES files.  You may also have to look over
2801your available compiler tool chain or change your configuration.
2802
2803_____
2804
2805    # Dying is terminal, so it's ok to reset the signal handler here.
2806    $SIG{__DIE__} = $orig_death_handler;
2807    die @message;
2808}
2809
2810# Configuration file reading #########################################
2811
2812# Note: All of the helper functions are for lazy evaluation.  They all
2813# return a CODE ref, which will return the intended value when evaluated.
2814# Thus, whenever there's mention of a returned value, it's about that
2815# intended value.
2816
2817# Helper function to implement conditional inheritance depending on the
2818# value of $disabled{asm}.  Used in inherit_from values as follows:
2819#
2820#      inherit_from => [ "template", asm("asm_tmpl") ]
2821#
2822sub asm {
2823    my @x = @_;
2824    sub {
2825	$disabled{asm} ? () : @x;
2826    }
2827}
2828
2829# Helper function to implement conditional value variants, with a default
2830# plus additional values based on the value of $config{build_type}.
2831# Arguments are given in hash table form:
2832#
2833#       picker(default => "Basic string: ",
2834#              debug   => "debug",
2835#              release => "release")
2836#
2837# When configuring with --debug, the resulting string will be
2838# "Basic string: debug", and when not, it will be "Basic string: release"
2839#
2840# This can be used to create variants of sets of flags according to the
2841# build type:
2842#
2843#       cflags => picker(default => "-Wall",
2844#                        debug   => "-g -O0",
2845#                        release => "-O3")
2846#
2847sub picker {
2848    my %opts = @_;
2849    return sub { add($opts{default} || (),
2850                     $opts{$config{build_type}} || ())->(); }
2851}
2852
2853# Helper function to combine several values of different types into one.
2854# This is useful if you want to combine a string with the result of a
2855# lazy function, such as:
2856#
2857#       cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
2858#
2859sub combine {
2860    my @stuff = @_;
2861    return sub { add(@stuff)->(); }
2862}
2863
2864# Helper function to implement conditional values depending on the value
2865# of $disabled{threads}.  Can be used as follows:
2866#
2867#       cflags => combine("-Wall", threads("-pthread"))
2868#
2869sub threads {
2870    my @flags = @_;
2871    return sub { add($disabled{threads} ? () : @flags)->(); }
2872}
2873
2874sub shared {
2875    my @flags = @_;
2876    return sub { add($disabled{shared} ? () : @flags)->(); }
2877}
2878
2879our $add_called = 0;
2880# Helper function to implement adding values to already existing configuration
2881# values.  It handles elements that are ARRAYs, CODEs and scalars
2882sub _add {
2883    my $separator = shift;
2884
2885    # If there's any ARRAY in the collection of values OR the separator
2886    # is undef, we will return an ARRAY of combined values, otherwise a
2887    # string of joined values with $separator as the separator.
2888    my $found_array = !defined($separator);
2889
2890    my @values =
2891	map {
2892	    my $res = $_;
2893	    while (ref($res) eq "CODE") {
2894		$res = $res->();
2895	    }
2896	    if (defined($res)) {
2897		if (ref($res) eq "ARRAY") {
2898		    $found_array = 1;
2899		    @$res;
2900		} else {
2901		    $res;
2902		}
2903	    } else {
2904		();
2905	    }
2906    } (@_);
2907
2908    $add_called = 1;
2909
2910    if ($found_array) {
2911	[ @values ];
2912    } else {
2913	join($separator, grep { defined($_) && $_ ne "" } @values);
2914    }
2915}
2916sub add_before {
2917    my $separator = " ";
2918    if (ref($_[$#_]) eq "HASH") {
2919        my $opts = pop;
2920        $separator = $opts->{separator};
2921    }
2922    my @x = @_;
2923    sub { _add($separator, @x, @_) };
2924}
2925sub add {
2926    my $separator = " ";
2927    if (ref($_[$#_]) eq "HASH") {
2928        my $opts = pop;
2929        $separator = $opts->{separator};
2930    }
2931    my @x = @_;
2932    sub { _add($separator, @_, @x) };
2933}
2934
2935sub read_eval_file {
2936    my $fname = shift;
2937    my $content;
2938    my @result;
2939
2940    open F, "< $fname" or die "Can't open '$fname': $!\n";
2941    {
2942        undef local $/;
2943        $content = <F>;
2944    }
2945    close F;
2946    {
2947        local $@;
2948
2949        @result = ( eval $content );
2950        warn $@ if $@;
2951    }
2952    return wantarray ? @result : $result[0];
2953}
2954
2955# configuration reader, evaluates the input file as a perl script and expects
2956# it to fill %targets with target configurations.  Those are then added to
2957# %table.
2958sub read_config {
2959    my $fname = shift;
2960    my %targets;
2961
2962    {
2963	# Protect certain tables from tampering
2964	local %table = ();
2965
2966	%targets = read_eval_file($fname);
2967    }
2968    my %preexisting = ();
2969    foreach (sort keys %targets) {
2970        $preexisting{$_} = 1 if $table{$_};
2971    }
2972    die <<"EOF",
2973The following config targets from $fname
2974shadow pre-existing config targets with the same name:
2975EOF
2976        map { "  $_\n" } sort keys %preexisting
2977        if %preexisting;
2978
2979
2980    # For each target, check that it's configured with a hash table.
2981    foreach (keys %targets) {
2982	if (ref($targets{$_}) ne "HASH") {
2983	    if (ref($targets{$_}) eq "") {
2984		warn "Deprecated target configuration for $_, ignoring...\n";
2985	    } else {
2986		warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
2987	    }
2988	    delete $targets{$_};
2989	} else {
2990            $targets{$_}->{_conf_fname_int} = add([ $fname ]);
2991        }
2992    }
2993
2994    %table = (%table, %targets);
2995
2996}
2997
2998# configuration resolver.  Will only resolve all the lazy evaluation
2999# codeblocks for the chosen target and all those it inherits from,
3000# recursively
3001sub resolve_config {
3002    my $target = shift;
3003    my @breadcrumbs = @_;
3004
3005#    my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
3006
3007    if (grep { $_ eq $target } @breadcrumbs) {
3008	die "inherit_from loop!  target backtrace:\n  "
3009	    ,$target,"\n  ",join("\n  ", @breadcrumbs),"\n";
3010    }
3011
3012    if (!defined($table{$target})) {
3013	warn "Warning! target $target doesn't exist!\n";
3014	return ();
3015    }
3016    # Recurse through all inheritances.  They will be resolved on the
3017    # fly, so when this operation is done, they will all just be a
3018    # bunch of attributes with string values.
3019    # What we get here, though, are keys with references to lists of
3020    # the combined values of them all.  We will deal with lists after
3021    # this stage is done.
3022    my %combined_inheritance = ();
3023    if ($table{$target}->{inherit_from}) {
3024	my @inherit_from =
3025	    map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
3026	foreach (@inherit_from) {
3027	    my %inherited_config = resolve_config($_, $target, @breadcrumbs);
3028
3029	    # 'template' is a marker that's considered private to
3030	    # the config that had it.
3031	    delete $inherited_config{template};
3032
3033	    foreach (keys %inherited_config) {
3034		if (!$combined_inheritance{$_}) {
3035		    $combined_inheritance{$_} = [];
3036		}
3037		push @{$combined_inheritance{$_}}, $inherited_config{$_};
3038	    }
3039	}
3040    }
3041
3042    # We won't need inherit_from in this target any more, since we've
3043    # resolved all the inheritances that lead to this
3044    delete $table{$target}->{inherit_from};
3045
3046    # Now is the time to deal with those lists.  Here's the place to
3047    # decide what shall be done with those lists, all based on the
3048    # values of the target we're currently dealing with.
3049    # - If a value is a coderef, it will be executed with the list of
3050    #   inherited values as arguments.
3051    # - If the corresponding key doesn't have a value at all or is the
3052    #   empty string, the inherited value list will be run through the
3053    #   default combiner (below), and the result becomes this target's
3054    #   value.
3055    # - Otherwise, this target's value is assumed to be a string that
3056    #   will simply override the inherited list of values.
3057    my $default_combiner = add();
3058
3059    my %all_keys =
3060	map { $_ => 1 } (keys %combined_inheritance,
3061			 keys %{$table{$target}});
3062
3063    sub process_values {
3064	my $object    = shift;
3065	my $inherited = shift;  # Always a [ list ]
3066	my $target    = shift;
3067	my $entry     = shift;
3068
3069        $add_called = 0;
3070
3071        while(ref($object) eq "CODE") {
3072            $object = $object->(@$inherited);
3073        }
3074        if (!defined($object)) {
3075            return ();
3076        }
3077        elsif (ref($object) eq "ARRAY") {
3078            local $add_called;  # To make sure recursive calls don't affect it
3079            return [ map { process_values($_, $inherited, $target, $entry) }
3080                     @$object ];
3081        } elsif (ref($object) eq "") {
3082            return $object;
3083        } else {
3084            die "cannot handle reference type ",ref($object)
3085                ," found in target ",$target," -> ",$entry,"\n";
3086        }
3087    }
3088
3089    foreach (sort keys %all_keys) {
3090        my $previous = $combined_inheritance{$_};
3091
3092	# Current target doesn't have a value for the current key?
3093	# Assign it the default combiner, the rest of this loop body
3094	# will handle it just like any other coderef.
3095	if (!exists $table{$target}->{$_}) {
3096	    $table{$target}->{$_} = $default_combiner;
3097	}
3098
3099	$table{$target}->{$_} = process_values($table{$target}->{$_},
3100					       $combined_inheritance{$_},
3101					       $target, $_);
3102        unless(defined($table{$target}->{$_})) {
3103            delete $table{$target}->{$_};
3104        }
3105#        if ($extra_checks &&
3106#            $previous && !($add_called ||  $previous ~~ $table{$target}->{$_})) {
3107#            warn "$_ got replaced in $target\n";
3108#        }
3109    }
3110
3111    # Finally done, return the result.
3112    return %{$table{$target}};
3113}
3114
3115sub usage
3116	{
3117	print STDERR $usage;
3118	print STDERR "\npick os/compiler from:\n";
3119	my $j=0;
3120	my $i;
3121        my $k=0;
3122	foreach $i (sort keys %table)
3123		{
3124		next if $table{$i}->{template};
3125		next if $i =~ /^debug/;
3126		$k += length($i) + 1;
3127		if ($k > 78)
3128			{
3129			print STDERR "\n";
3130			$k=length($i);
3131			}
3132		print STDERR $i . " ";
3133		}
3134	foreach $i (sort keys %table)
3135		{
3136		next if $table{$i}->{template};
3137		next if $i !~ /^debug/;
3138		$k += length($i) + 1;
3139		if ($k > 78)
3140			{
3141			print STDERR "\n";
3142			$k=length($i);
3143			}
3144		print STDERR $i . " ";
3145		}
3146	print STDERR "\n\nNOTE: If in doubt, on Unix-ish systems use './config'.\n";
3147	exit(1);
3148	}
3149
3150sub run_dofile
3151{
3152    my $out = shift;
3153    my @templates = @_;
3154
3155    unlink $out || warn "Can't remove $out, $!"
3156        if -f $out;
3157    foreach (@templates) {
3158        die "Can't open $_, $!" unless -f $_;
3159    }
3160    my $perlcmd = (quotify("maybeshell", $config{PERL}))[0];
3161    my $cmd = "$perlcmd \"-I.\" \"-Mconfigdata\" \"$dofile\" -o\"Configure\" \"".join("\" \"",@templates)."\" > \"$out.new\"";
3162    #print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
3163    system($cmd);
3164    exit 1 if $? != 0;
3165    rename("$out.new", $out) || die "Can't rename $out.new, $!";
3166}
3167
3168sub compiler_predefined {
3169    state %predefined;
3170    my $cc = shift;
3171
3172    return () if $^O eq 'VMS';
3173
3174    die 'compiler_predefined called without a compiler command'
3175        unless $cc;
3176
3177    if (! $predefined{$cc}) {
3178
3179        $predefined{$cc} = {};
3180
3181        # collect compiler pre-defines from gcc or gcc-alike...
3182        open(PIPE, "$cc -dM -E -x c /dev/null 2>&1 |");
3183        while (my $l = <PIPE>) {
3184            $l =~ m/^#define\s+(\w+(?:\(\w+\))?)(?:\s+(.+))?/ or last;
3185            $predefined{$cc}->{$1} = $2 // '';
3186        }
3187        close(PIPE);
3188    }
3189
3190    return %{$predefined{$cc}};
3191}
3192
3193sub which
3194{
3195    my ($name)=@_;
3196
3197    if (eval { require IPC::Cmd; 1; }) {
3198        IPC::Cmd->import();
3199        return scalar IPC::Cmd::can_run($name);
3200    } else {
3201        # if there is $directories component in splitpath,
3202        # then it's not something to test with $PATH...
3203        return $name if (File::Spec->splitpath($name))[1];
3204
3205        foreach (File::Spec->path()) {
3206            my $fullpath = catfile($_, "$name$target{exe_extension}");
3207            if (-f $fullpath and -x $fullpath) {
3208                return $fullpath;
3209            }
3210        }
3211    }
3212}
3213
3214sub env
3215{
3216    my $name = shift;
3217    my %opts = @_;
3218
3219    unless ($opts{cacheonly}) {
3220        # Note that if $ENV{$name} doesn't exist or is undefined,
3221        # $config{perlenv}->{$name} will be created with the value
3222        # undef.  This is intentional.
3223
3224        $config{perlenv}->{$name} = $ENV{$name}
3225            if ! exists $config{perlenv}->{$name};
3226    }
3227    return $config{perlenv}->{$name};
3228}
3229
3230# Configuration printer ##############################################
3231
3232sub print_table_entry
3233{
3234    local $now_printing = shift;
3235    my %target = resolve_config($now_printing);
3236    my $type = shift;
3237
3238    # Don't print the templates
3239    return if $target{template};
3240
3241    my @sequence = (
3242	"sys_id",
3243	"cpp",
3244	"cppflags",
3245	"defines",
3246	"includes",
3247	"cc",
3248	"cflags",
3249	"unistd",
3250	"ld",
3251	"lflags",
3252	"loutflag",
3253	"ex_libs",
3254	"bn_ops",
3255	"apps_aux_src",
3256	"cpuid_asm_src",
3257	"uplink_aux_src",
3258	"bn_asm_src",
3259	"ec_asm_src",
3260	"des_asm_src",
3261	"aes_asm_src",
3262	"bf_asm_src",
3263	"md5_asm_src",
3264	"cast_asm_src",
3265	"sha1_asm_src",
3266	"rc4_asm_src",
3267	"rmd160_asm_src",
3268	"rc5_asm_src",
3269	"wp_asm_src",
3270	"cmll_asm_src",
3271	"modes_asm_src",
3272	"padlock_asm_src",
3273	"chacha_asm_src",
3274	"poly1035_asm_src",
3275	"thread_scheme",
3276	"perlasm_scheme",
3277	"dso_scheme",
3278	"shared_target",
3279	"shared_cflag",
3280	"shared_defines",
3281	"shared_ldflag",
3282	"shared_rcflag",
3283	"shared_extension",
3284	"dso_extension",
3285	"obj_extension",
3286	"exe_extension",
3287	"ranlib",
3288	"ar",
3289	"arflags",
3290	"aroutflag",
3291	"rc",
3292	"rcflags",
3293	"rcoutflag",
3294	"mt",
3295	"mtflags",
3296	"mtinflag",
3297	"mtoutflag",
3298	"multilib",
3299	"build_scheme",
3300	);
3301
3302    if ($type eq "TABLE") {
3303	print "\n";
3304	print "*** $now_printing\n";
3305        foreach (@sequence) {
3306            if (ref($target{$_}) eq "ARRAY") {
3307                printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
3308            } else {
3309                printf "\$%-12s = %s\n", $_, $target{$_};
3310            }
3311        }
3312    } elsif ($type eq "HASH") {
3313	my $largest =
3314	    length((sort { length($a) <=> length($b) } @sequence)[-1]);
3315	print "    '$now_printing' => {\n";
3316	foreach (@sequence) {
3317	    if ($target{$_}) {
3318                if (ref($target{$_}) eq "ARRAY") {
3319                    print "      '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
3320                } else {
3321                    print "      '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
3322                }
3323	    }
3324	}
3325	print "    },\n";
3326    }
3327}
3328
3329# Utility routines ###################################################
3330
3331# On VMS, if the given file is a logical name, File::Spec::Functions
3332# will consider it an absolute path.  There are cases when we want a
3333# purely syntactic check without checking the environment.
3334sub isabsolute {
3335    my $file = shift;
3336
3337    # On non-platforms, we just use file_name_is_absolute().
3338    return file_name_is_absolute($file) unless $^O eq "VMS";
3339
3340    # If the file spec includes a device or a directory spec,
3341    # file_name_is_absolute() is perfectly safe.
3342    return file_name_is_absolute($file) if $file =~ m|[:\[]|;
3343
3344    # Here, we know the given file spec isn't absolute
3345    return 0;
3346}
3347
3348# Makes a directory absolute and cleans out /../ in paths like foo/../bar
3349# On some platforms, this uses rel2abs(), while on others, realpath() is used.
3350# realpath() requires that at least all path components except the last is an
3351# existing directory.  On VMS, the last component of the directory spec must
3352# exist.
3353sub absolutedir {
3354    my $dir = shift;
3355
3356    # realpath() is quite buggy on VMS.  It uses LIB$FID_TO_NAME, which
3357    # will return the volume name for the device, no matter what.  Also,
3358    # it will return an incorrect directory spec if the argument is a
3359    # directory that doesn't exist.
3360    if ($^O eq "VMS") {
3361        return rel2abs($dir);
3362    }
3363
3364    # We use realpath() on Unix, since no other will properly clean out
3365    # a directory spec.
3366    use Cwd qw/realpath/;
3367
3368    return realpath($dir);
3369}
3370
3371sub quotify {
3372    my %processors = (
3373	perl    => sub { my $x = shift;
3374			 $x =~ s/([\\\$\@"])/\\$1/g;
3375			 return '"'.$x.'"'; },
3376	maybeshell => sub { my $x = shift;
3377			    (my $y = $x) =~ s/([\\\"])/\\$1/g;
3378			    if ($x ne $y || $x =~ m|\s|) {
3379				return '"'.$y.'"';
3380			    } else {
3381				return $x;
3382			    }
3383			},
3384	);
3385    my $for = shift;
3386    my $processor =
3387	defined($processors{$for}) ? $processors{$for} : sub { shift; };
3388
3389    return map { $processor->($_); } @_;
3390}
3391
3392# collect_from_file($filename, $line_concat_cond_re, $line_concat)
3393# $filename is a file name to read from
3394# $line_concat_cond_re is a regexp detecting a line continuation ending
3395# $line_concat is a CODEref that takes care of concatenating two lines
3396sub collect_from_file {
3397    my $filename = shift;
3398    my $line_concat_cond_re = shift;
3399    my $line_concat = shift;
3400
3401    open my $fh, $filename || die "unable to read $filename: $!\n";
3402    return sub {
3403        my $saved_line = "";
3404        $_ = "";
3405        while (<$fh>) {
3406            s|\R$||;
3407            if (defined $line_concat) {
3408                $_ = $line_concat->($saved_line, $_);
3409                $saved_line = "";
3410            }
3411            if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3412                $saved_line = $_;
3413                next;
3414            }
3415            return $_;
3416        }
3417        die "$filename ending with continuation line\n" if $_;
3418        close $fh;
3419        return undef;
3420    }
3421}
3422
3423# collect_from_array($array, $line_concat_cond_re, $line_concat)
3424# $array is an ARRAYref of lines
3425# $line_concat_cond_re is a regexp detecting a line continuation ending
3426# $line_concat is a CODEref that takes care of concatenating two lines
3427sub collect_from_array {
3428    my $array = shift;
3429    my $line_concat_cond_re = shift;
3430    my $line_concat = shift;
3431    my @array = (@$array);
3432
3433    return sub {
3434        my $saved_line = "";
3435        $_ = "";
3436        while (defined($_ = shift @array)) {
3437            s|\R$||;
3438            if (defined $line_concat) {
3439                $_ = $line_concat->($saved_line, $_);
3440                $saved_line = "";
3441            }
3442            if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3443                $saved_line = $_;
3444                next;
3445            }
3446            return $_;
3447        }
3448        die "input text ending with continuation line\n" if $_;
3449        return undef;
3450    }
3451}
3452
3453# collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
3454# $lineiterator is a CODEref that delivers one line at a time.
3455# All following arguments are regex/CODEref pairs, where the regexp detects a
3456# line and the CODEref does something with the result of the regexp.
3457sub collect_information {
3458    my $lineiterator = shift;
3459    my %collectors = @_;
3460
3461    while(defined($_ = $lineiterator->())) {
3462        s|\R$||;
3463        my $found = 0;
3464        if ($collectors{"BEFORE"}) {
3465            $collectors{"BEFORE"}->($_);
3466        }
3467        foreach my $re (keys %collectors) {
3468            if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
3469                $collectors{$re}->($lineiterator);
3470                $found = 1;
3471            };
3472        }
3473        if ($collectors{"OTHERWISE"}) {
3474            $collectors{"OTHERWISE"}->($lineiterator, $_)
3475                unless $found || !defined $collectors{"OTHERWISE"};
3476        }
3477        if ($collectors{"AFTER"}) {
3478            $collectors{"AFTER"}->($_);
3479        }
3480    }
3481}
3482
3483# tokenize($line)
3484# $line is a line of text to split up into tokens
3485# returns a list of tokens
3486#
3487# Tokens are divided by spaces.  If the tokens include spaces, they
3488# have to be quoted with single or double quotes.  Double quotes
3489# inside a double quoted token must be escaped.  Escaping is done
3490# with backslash.
3491# Basically, the same quoting rules apply for " and ' as in any
3492# Unix shell.
3493sub tokenize {
3494    my $line = my $debug_line = shift;
3495    my @result = ();
3496
3497    while ($line =~ s|^\s+||, $line ne "") {
3498        my $token = "";
3499        while ($line ne "" && $line !~ m|^\s|) {
3500            if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
3501                $token .= $1;
3502                $line = $';
3503            } elsif ($line =~ m/^'([^']*)'/) {
3504                $token .= $1;
3505                $line = $';
3506            } elsif ($line =~ m/^(\S+)/) {
3507                $token .= $1;
3508                $line = $';
3509            }
3510        }
3511        push @result, $token;
3512    }
3513
3514    if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
3515	print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
3516	print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
3517    }
3518    return @result;
3519}
3520