xref: /freebsd/crypto/openssl/Configure (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71) 
1#! /usr/bin/env perl
2# -*- mode: perl; -*-
3# Copyright 2016-2020 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-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-egd        do not compile support for the entropy-gathering daemon APIs
62# [no-]zlib     [don't] compile support for zlib compression.
63# zlib-dynamic  Like "zlib", but the zlib library is expected to be a shared
64#               library and will be loaded in run-time by the OpenSSL library.
65# sctp          include SCTP support
66# enable-weak-ssl-ciphers
67#               Enable weak ciphers that are disabled by default.
68# 386           generate 80386 code in assembly modules
69# no-sse2       disables IA-32 SSE2 code in assembly modules, the above
70#               mentioned '386' option implies this one
71# no-<cipher>   build without specified algorithm (rsa, idea, rc5, ...)
72# -<xxx> +<xxx> All options which are unknown to the 'Configure' script are
73# /<xxx>        passed through to the compiler. Unix-style options beginning
74#               with a '-' or '+' are recognized, as well as Windows-style
75#               options beginning with a '/'. If the option contains arguments
76#               separated by spaces, then the URL-style notation %20 can be
77#               used for the space character in order to avoid having to quote
78#               the option. For example, -opt%20arg gets expanded to -opt arg.
79#               In fact, any ASCII character can be encoded as %xx using its
80#               hexadecimal encoding.
81# -static       while -static is also a pass-through compiler option (and
82#               as such is limited to environments where it's actually
83#               meaningful), it triggers a number configuration options,
84#               namely no-pic, no-shared and no-threads. It is
85#               argued that the only reason to produce statically linked
86#               binaries (and in context it means executables linked with
87#               -static flag, and not just executables linked with static
88#               libcrypto.a) is to eliminate dependency on specific run-time,
89#               a.k.a. libc version. The mentioned config options are meant
90#               to achieve just that. Unfortunately on Linux it's impossible
91#               to eliminate the dependency completely for openssl executable
92#               because of getaddrinfo and gethostbyname calls, which can
93#               invoke dynamically loadable library facility anyway to meet
94#               the lookup requests. For this reason on Linux statically
95#               linked openssl executable has rather debugging value than
96#               production quality.
97#
98# BN_LLONG      use the type 'long long' in crypto/bn/bn.h
99# RC4_CHAR      use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
100# Following are set automatically by this script
101#
102# MD5_ASM       use some extra md5 assembler,
103# SHA1_ASM      use some extra sha1 assembler, must define L_ENDIAN for x86
104# RMD160_ASM    use some extra ripemd160 assembler,
105# SHA256_ASM    sha256_block is implemented in assembler
106# SHA512_ASM    sha512_block is implemented in assembler
107# AES_ASM       AES_[en|de]crypt is implemented in assembler
108
109# Minimum warning options... any contributions to OpenSSL should at least
110# get past these.  Note that we only use these with C compilers, not with
111# C++ compilers.
112
113# DEBUG_UNUSED enables __owur (warn unused result) checks.
114# -DPEDANTIC complements -pedantic and is meant to mask code that
115# is not strictly standard-compliant and/or implementation-specific,
116# e.g. inline assembly, disregards to alignment requirements, such
117# that -pedantic would complain about. Incidentally -DPEDANTIC has
118# to be used even in sanitized builds, because sanitizer too is
119# supposed to and does take notice of non-standard behaviour. Then
120# -pedantic with pre-C9x compiler would also complain about 'long
121# long' not being supported. As 64-bit algorithms are common now,
122# it grew impossible to resolve this without sizeable additional
123# code, so we just tell compiler to be pedantic about everything
124# but 'long long' type.
125
126my @gcc_devteam_warn = qw(
127    -DDEBUG_UNUSED
128    -DPEDANTIC -pedantic -Wno-long-long
129    -Wall
130    -Wextra
131    -Wno-unused-parameter
132    -Wno-missing-field-initializers
133    -Wswitch
134    -Wsign-compare
135    -Wshadow
136    -Wformat
137    -Wtype-limits
138    -Wundef
139    -Werror
140    -Wmissing-prototypes
141    -Wstrict-prototypes
142);
143
144# These are used in addition to $gcc_devteam_warn when the compiler is clang.
145# TODO(openssl-team): fix problems and investigate if (at least) the
146# following warnings can also be enabled:
147#       -Wcast-align
148#       -Wunreachable-code -- no, too ugly/compiler-specific
149#       -Wlanguage-extension-token -- no, we use asm()
150#       -Wunused-macros -- no, too tricky for BN and _XOPEN_SOURCE etc
151#       -Wextended-offsetof -- no, needed in CMS ASN1 code
152my @clang_devteam_warn = qw(
153    -Wno-unknown-warning-option
154    -Wswitch-default
155    -Wno-parentheses-equality
156    -Wno-language-extension-token
157    -Wno-extended-offsetof
158    -Wconditional-uninitialized
159    -Wincompatible-pointer-types-discards-qualifiers
160    -Wmissing-variable-declarations
161);
162
163my @cl_devteam_warn = qw(
164    /WX
165);
166
167# This adds backtrace information to the memory leak info.  Is only used
168# when crypto-mdebug-backtrace is enabled.
169my $memleak_devteam_backtrace = "-rdynamic";
170
171my $strict_warnings = 0;
172
173# As for $BSDthreads. Idea is to maintain "collective" set of flags,
174# which would cover all BSD flavors. -pthread applies to them all,
175# but is treated differently. OpenBSD expands is as -D_POSIX_THREAD
176# -lc_r, which is sufficient. FreeBSD 4.x expands it as -lc_r,
177# which has to be accompanied by explicit -D_THREAD_SAFE and
178# sometimes -D_REENTRANT. FreeBSD 5.x expands it as -lc_r, which
179# seems to be sufficient?
180our $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";
181
182#
183# API compatibility name to version number mapping.
184#
185my $maxapi = "1.1.0";           # API for "no-deprecated" builds
186my $apitable = {
187    "1.1.0" => "0x10100000L",
188    "1.0.0" => "0x10000000L",
189    "0.9.8" => "0x00908000L",
190};
191
192our %table = ();
193our %config = ();
194our %withargs = ();
195our $now_printing;      # set to current entry's name in print_table_entry
196                        # (todo: right thing would be to encapsulate name
197                        # into %target [class] and make print_table_entry
198                        # a method)
199
200# Forward declarations ###############################################
201
202# read_config(filename)
203#
204# Reads a configuration file and populates %table with the contents
205# (which the configuration file places in %targets).
206sub read_config;
207
208# resolve_config(target)
209#
210# Resolves all the late evaluations, inheritances and so on for the
211# chosen target and any target it inherits from.
212sub resolve_config;
213
214
215# Information collection #############################################
216
217# Unified build supports separate build dir
218my $srcdir = catdir(absolutedir(dirname($0))); # catdir ensures local syntax
219my $blddir = catdir(absolutedir("."));         # catdir ensures local syntax
220
221# File::Spec::Unix doesn't detect case insensitivity, so we make sure to
222# check if the source and build directory are really the same, and make
223# them so.  This avoids all kinds of confusion later on.
224# We must check @File::Spec::ISA rather than using File::Spec->isa() to
225# know if File::Spec ended up loading File::Spec::Unix.
226$srcdir = $blddir
227    if (grep(/::Unix$/, @File::Spec::ISA)
228        && samedir($srcdir, $blddir));
229
230my $dofile = abs2rel(catfile($srcdir, "util/dofile.pl"));
231
232my $local_config_envname = 'OPENSSL_LOCAL_CONFIG_DIR';
233
234$config{sourcedir} = abs2rel($srcdir, $blddir);
235$config{builddir} = abs2rel($blddir, $blddir);
236
237# Collect reconfiguration information if needed
238my @argvcopy=@ARGV;
239
240if (grep /^reconf(igure)?$/, @argvcopy) {
241    die "reconfiguring with other arguments present isn't supported"
242        if scalar @argvcopy > 1;
243    if (-f "./configdata.pm") {
244        my $file = "./configdata.pm";
245        unless (my $return = do $file) {
246            die "couldn't parse $file: $@" if $@;
247            die "couldn't do $file: $!"    unless defined $return;
248            die "couldn't run $file"       unless $return;
249        }
250
251        @argvcopy = defined($configdata::config{perlargv}) ?
252            @{$configdata::config{perlargv}} : ();
253        die "Incorrect data to reconfigure, please do a normal configuration\n"
254            if (grep(/^reconf/,@argvcopy));
255        $config{perlenv} = $configdata::config{perlenv} // {};
256    } else {
257        die "Insufficient data to reconfigure, please do a normal configuration\n";
258    }
259}
260
261$config{perlargv} = [ @argvcopy ];
262
263# Collect version numbers
264$config{version} = "unknown";
265$config{version_num} = "unknown";
266$config{shlib_version_number} = "unknown";
267$config{shlib_version_history} = "unknown";
268
269collect_information(
270    collect_from_file(catfile($srcdir,'include/openssl/opensslv.h')),
271    qr/OPENSSL.VERSION.TEXT.*OpenSSL (\S+) / => sub { $config{version} = $1; },
272    qr/OPENSSL.VERSION.NUMBER.*(0x\S+)/      => sub { $config{version_num}=$1 },
273    qr/SHLIB_VERSION_NUMBER *"([^"]+)"/      => sub { $config{shlib_version_number}=$1 },
274    qr/SHLIB_VERSION_HISTORY *"([^"]*)"/     => sub { $config{shlib_version_history}=$1 }
275    );
276if ($config{shlib_version_history} ne "") { $config{shlib_version_history} .= ":"; }
277
278($config{major}, $config{minor})
279    = ($config{version} =~ /^([0-9]+)\.([0-9\.]+)/);
280($config{shlib_major}, $config{shlib_minor})
281    = ($config{shlib_version_number} =~ /^([0-9]+)\.([0-9\.]+)/);
282die "erroneous version information in opensslv.h: ",
283    "$config{major}, $config{minor}, $config{shlib_major}, $config{shlib_minor}\n"
284    if ($config{major} eq "" || $config{minor} eq ""
285        || $config{shlib_major} eq "" ||  $config{shlib_minor} eq "");
286
287# Collect target configurations
288
289my $pattern = catfile(dirname($0), "Configurations", "*.conf");
290foreach (sort glob($pattern)) {
291    &read_config($_);
292}
293
294if (defined env($local_config_envname)) {
295    if ($^O eq 'VMS') {
296        # VMS environment variables are logical names,
297        # which can be used as is
298        $pattern = $local_config_envname . ':' . '*.conf';
299    } else {
300        $pattern = catfile(env($local_config_envname), '*.conf');
301    }
302
303    foreach (sort glob($pattern)) {
304        &read_config($_);
305    }
306}
307
308# Save away perl command information
309$config{perl_cmd} = $^X;
310$config{perl_version} = $Config{version};
311$config{perl_archname} = $Config{archname};
312
313$config{prefix}="";
314$config{openssldir}="";
315$config{processor}="";
316$config{libdir}="";
317my $auto_threads=1;    # enable threads automatically? true by default
318my $default_ranlib;
319
320# Top level directories to build
321$config{dirs} = [ "crypto", "ssl", "engines", "apps", "test", "util", "tools", "fuzz" ];
322# crypto/ subdirectories to build
323$config{sdirs} = [
324    "objects",
325    "md2", "md4", "md5", "sha", "mdc2", "hmac", "ripemd", "whrlpool", "poly1305", "blake2", "siphash", "sm3",
326    "des", "aes", "rc2", "rc4", "rc5", "idea", "aria", "bf", "cast", "camellia", "seed", "sm4", "chacha", "modes",
327    "bn", "ec", "rsa", "dsa", "dh", "sm2", "dso", "engine",
328    "buffer", "bio", "stack", "lhash", "rand", "err",
329    "evp", "asn1", "pem", "x509", "x509v3", "conf", "txt_db", "pkcs7", "pkcs12", "comp", "ocsp", "ui",
330    "cms", "ts", "srp", "cmac", "ct", "async", "kdf", "store"
331    ];
332# test/ subdirectories to build
333$config{tdirs} = [ "ossl_shim" ];
334
335# Known TLS and DTLS protocols
336my @tls = qw(ssl3 tls1 tls1_1 tls1_2 tls1_3);
337my @dtls = qw(dtls1 dtls1_2);
338
339# Explicitly known options that are possible to disable.  They can
340# be regexps, and will be used like this: /^no-${option}$/
341# For developers: keep it sorted alphabetically
342
343my @disablables = (
344    "afalgeng",
345    "aria",
346    "asan",
347    "asm",
348    "async",
349    "autoalginit",
350    "autoerrinit",
351    "autoload-config",
352    "bf",
353    "blake2",
354    "buildtest-c\\+\\+",
355    "camellia",
356    "capieng",
357    "cast",
358    "chacha",
359    "cmac",
360    "cms",
361    "comp",
362    "crypto-mdebug",
363    "crypto-mdebug-backtrace",
364    "ct",
365    "deprecated",
366    "des",
367    "devcryptoeng",
368    "dgram",
369    "dh",
370    "dsa",
371    "dso",
372    "dtls",
373    "dynamic-engine",
374    "ec",
375    "ec2m",
376    "ecdh",
377    "ecdsa",
378    "ec_nistp_64_gcc_128",
379    "egd",
380    "engine",
381    "err",
382    "external-tests",
383    "filenames",
384    "fuzz-libfuzzer",
385    "fuzz-afl",
386    "gost",
387    "heartbeats",
388    "hw(-.+)?",
389    "idea",
390    "makedepend",
391    "md2",
392    "md4",
393    "mdc2",
394    "msan",
395    "multiblock",
396    "nextprotoneg",
397    "pinshared",
398    "ocb",
399    "ocsp",
400    "pic",
401    "poly1305",
402    "posix-io",
403    "psk",
404    "rc2",
405    "rc4",
406    "rc5",
407    "rdrand",
408    "rfc3779",
409    "rmd160",
410    "scrypt",
411    "sctp",
412    "seed",
413    "shared",
414    "siphash",
415    "sm2",
416    "sm3",
417    "sm4",
418    "sock",
419    "srp",
420    "srtp",
421    "sse2",
422    "ssl",
423    "ssl-trace",
424    "static-engine",
425    "stdio",
426    "tests",
427    "threads",
428    "tls",
429    "ts",
430    "ubsan",
431    "ui-console",
432    "unit-test",
433    "whirlpool",
434    "weak-ssl-ciphers",
435    "zlib",
436    "zlib-dynamic",
437    );
438foreach my $proto ((@tls, @dtls))
439        {
440        push(@disablables, $proto);
441        push(@disablables, "$proto-method") unless $proto eq "tls1_3";
442        }
443
444my %deprecated_disablables = (
445    "ssl2" => undef,
446    "buf-freelists" => undef,
447    "ripemd" => "rmd160",
448    "ui" => "ui-console",
449    );
450
451# All of the following are disabled by default:
452
453our %disabled = ( # "what"         => "comment"
454                  "asan"                => "default",
455                  "buildtest-c++"       => "default",
456                  "crypto-mdebug"       => "default",
457                  "crypto-mdebug-backtrace" => "default",
458                  "devcryptoeng"        => "default",
459                  "ec_nistp_64_gcc_128" => "default",
460                  "egd"                 => "default",
461                  "external-tests"      => "default",
462                  "fuzz-libfuzzer"      => "default",
463                  "fuzz-afl"            => "default",
464                  "heartbeats"          => "default",
465                  "md2"                 => "default",
466                  "msan"                => "default",
467                  "rc5"                 => "default",
468                  "sctp"                => "default",
469                  "ssl-trace"           => "default",
470                  "ssl3"                => "default",
471                  "ssl3-method"         => "default",
472                  "ubsan"               => "default",
473                  "unit-test"           => "default",
474                  "weak-ssl-ciphers"    => "default",
475                  "zlib"                => "default",
476                  "zlib-dynamic"        => "default",
477                );
478
479# Note: => pair form used for aesthetics, not to truly make a hash table
480my @disable_cascades = (
481    # "what"            => [ "cascade", ... ]
482    sub { $config{processor} eq "386" }
483                        => [ "sse2" ],
484    "ssl"               => [ "ssl3" ],
485    "ssl3-method"       => [ "ssl3" ],
486    "zlib"              => [ "zlib-dynamic" ],
487    "des"               => [ "mdc2" ],
488    "ec"                => [ "ecdsa", "ecdh" ],
489
490    "dgram"             => [ "dtls", "sctp" ],
491    "sock"              => [ "dgram" ],
492    "dtls"              => [ @dtls ],
493    sub { 0 == scalar grep { !$disabled{$_} } @dtls }
494                        => [ "dtls" ],
495
496    "tls"               => [ @tls ],
497    sub { 0 == scalar grep { !$disabled{$_} } @tls }
498                        => [ "tls" ],
499
500    "crypto-mdebug"     => [ "crypto-mdebug-backtrace" ],
501
502    # Without position independent code, there can be no shared libraries or DSOs
503    "pic"               => [ "shared" ],
504    "shared"            => [ "dynamic-engine" ],
505    "dso"               => [ "dynamic-engine" ],
506    "engine"            => [ "afalgeng", "devcryptoeng" ],
507
508    # no-autoalginit is only useful when building non-shared
509    "autoalginit"       => [ "shared", "apps" ],
510
511    "stdio"             => [ "apps", "capieng", "egd" ],
512    "apps"              => [ "tests" ],
513    "tests"             => [ "external-tests" ],
514    "comp"              => [ "zlib" ],
515    "ec"                => [ "tls1_3", "sm2" ],
516    "sm3"               => [ "sm2" ],
517    sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
518
519    sub { !$disabled{"msan"} } => [ "asm" ],
520    );
521
522# Avoid protocol support holes.  Also disable all versions below N, if version
523# N is disabled while N+1 is enabled.
524#
525my @list = (reverse @tls);
526while ((my $first, my $second) = (shift @list, shift @list)) {
527    last unless @list;
528    push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
529                              => [ @list ] );
530    unshift @list, $second;
531}
532my @list = (reverse @dtls);
533while ((my $first, my $second) = (shift @list, shift @list)) {
534    last unless @list;
535    push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
536                              => [ @list ] );
537    unshift @list, $second;
538}
539
540# Explicit "no-..." options will be collected in %disabled along with the defaults.
541# To remove something from %disabled, use "enable-foo".
542# For symmetry, "disable-foo" is a synonym for "no-foo".
543
544&usage if ($#ARGV < 0);
545
546# For the "make variables" CPPINCLUDES and CPPDEFINES, we support lists with
547# platform specific list separators.  Users from those platforms should
548# recognise those separators from how you set up the PATH to find executables.
549# The default is the Unix like separator, :, but as an exception, we also
550# support the space as separator.
551my $list_separator_re =
552    { VMS           => qr/(?<!\^),/,
553      MSWin32       => qr/(?<!\\);/ } -> {$^O} // qr/(?<!\\)[:\s]/;
554# All the "make variables" we support
555# Some get pre-populated for the sake of backward compatibility
556# (we supported those before the change to "make variable" support.
557my %user = (
558    AR          => env('AR'),
559    ARFLAGS     => [],
560    AS          => undef,
561    ASFLAGS     => [],
562    CC          => env('CC'),
563    CFLAGS      => [ env('CFLAGS') || () ],
564    CXX         => env('CXX'),
565    CXXFLAGS    => [ env('CXXFLAGS') || () ],
566    CPP         => undef,
567    CPPFLAGS    => [ env('CPPFLAGS') || () ],  # -D, -I, -Wp,
568    CPPDEFINES  => [],  # Alternative for -D
569    CPPINCLUDES => [],  # Alternative for -I
570    CROSS_COMPILE => env('CROSS_COMPILE'),
571    HASHBANGPERL=> env('HASHBANGPERL') || env('PERL'),
572    LD          => undef,
573    LDFLAGS     => [ env('LDFLAGS') || () ],  # -L, -Wl,
574    LDLIBS      => [ env('LDLIBS') || () ],  # -l
575    MT          => undef,
576    MTFLAGS     => [],
577    PERL        => env('PERL') || ($^O ne "VMS" ? $^X : "perl"),
578    RANLIB      => env('RANLIB'),
579    RC          => env('RC') || env('WINDRES'),
580    RCFLAGS     => [ env('RCFLAGS') || () ],
581    RM          => undef,
582   );
583# Info about what "make variables" may be prefixed with the cross compiler
584# prefix.  This should NEVER mention any such variable with a list for value.
585my @user_crossable = qw ( AR AS CC CXX CPP LD MT RANLIB RC );
586# The same but for flags given as Configure options.  These are *additional*
587# input, as opposed to the VAR=string option that override the corresponding
588# config target attributes
589my %useradd = (
590    CPPDEFINES  => [],
591    CPPINCLUDES => [],
592    CPPFLAGS    => [],
593    CFLAGS      => [],
594    CXXFLAGS    => [],
595    LDFLAGS     => [],
596    LDLIBS      => [],
597    RCFLAGS     => [],
598   );
599
600my %user_synonyms = (
601    HASHBANGPERL=> 'PERL',
602    RC          => 'WINDRES',
603   );
604
605# Some target attributes have been renamed, this is the translation table
606my %target_attr_translate =(
607    ar          => 'AR',
608    as          => 'AS',
609    cc          => 'CC',
610    cxx         => 'CXX',
611    cpp         => 'CPP',
612    hashbangperl => 'HASHBANGPERL',
613    ld          => 'LD',
614    mt          => 'MT',
615    ranlib      => 'RANLIB',
616    rc          => 'RC',
617    rm          => 'RM',
618   );
619
620# Initialisers coming from 'config' scripts
621$config{defines} = [ split(/$list_separator_re/, env('__CNF_CPPDEFINES')) ];
622$config{includes} = [ split(/$list_separator_re/, env('__CNF_CPPINCLUDES')) ];
623$config{cppflags} = [ env('__CNF_CPPFLAGS') || () ];
624$config{cflags} = [ env('__CNF_CFLAGS') || () ];
625$config{cxxflags} = [ env('__CNF_CXXFLAGS') || () ];
626$config{lflags} = [ env('__CNF_LDFLAGS') || () ];
627$config{ex_libs} = [ env('__CNF_LDLIBS') || () ];
628
629$config{openssl_api_defines}=[];
630$config{openssl_algorithm_defines}=[];
631$config{openssl_thread_defines}=[];
632$config{openssl_sys_defines}=[];
633$config{openssl_other_defines}=[];
634$config{options}="";
635$config{build_type} = "release";
636my $target="";
637
638my %cmdvars = ();               # Stores FOO='blah' type arguments
639my %unsupported_options = ();
640my %deprecated_options = ();
641# If you change this, update apps/version.c
642my @known_seed_sources = qw(getrandom devrandom os egd none rdcpu librandom);
643my @seed_sources = ();
644while (@argvcopy)
645        {
646        $_ = shift @argvcopy;
647
648        # Support env variable assignments among the options
649        if (m|^(\w+)=(.+)?$|)
650                {
651                $cmdvars{$1} = $2;
652                # Every time a variable is given as a configuration argument,
653                # it acts as a reset if the variable.
654                if (exists $user{$1})
655                        {
656                        $user{$1} = ref $user{$1} eq "ARRAY" ? [] : undef;
657                        }
658                #if (exists $useradd{$1})
659                #       {
660                #       $useradd{$1} = [];
661                #       }
662                next;
663                }
664
665        # VMS is a case insensitive environment, and depending on settings
666        # out of our control, we may receive options uppercased.  Let's
667        # downcase at least the part before any equal sign.
668        if ($^O eq "VMS")
669                {
670                s/^([^=]*)/lc($1)/e;
671                }
672
673        # some people just can't read the instructions, clang people have to...
674        s/^-no-(?!integrated-as)/no-/;
675
676        # rewrite some options in "enable-..." form
677        s /^-?-?shared$/enable-shared/;
678        s /^sctp$/enable-sctp/;
679        s /^threads$/enable-threads/;
680        s /^zlib$/enable-zlib/;
681        s /^zlib-dynamic$/enable-zlib-dynamic/;
682
683        if (/^(no|disable|enable)-(.+)$/)
684                {
685                my $word = $2;
686                if (!exists $deprecated_disablables{$word}
687                        && !grep { $word =~ /^${_}$/ } @disablables)
688                        {
689                        $unsupported_options{$_} = 1;
690                        next;
691                        }
692                }
693        if (/^no-(.+)$/ || /^disable-(.+)$/)
694                {
695                foreach my $proto ((@tls, @dtls))
696                        {
697                        if ($1 eq "$proto-method")
698                                {
699                                $disabled{"$proto"} = "option($proto-method)";
700                                last;
701                                }
702                        }
703                if ($1 eq "dtls")
704                        {
705                        foreach my $proto (@dtls)
706                                {
707                                $disabled{$proto} = "option(dtls)";
708                                }
709                        $disabled{"dtls"} = "option(dtls)";
710                        }
711                elsif ($1 eq "ssl")
712                        {
713                        # Last one of its kind
714                        $disabled{"ssl3"} = "option(ssl)";
715                        }
716                elsif ($1 eq "tls")
717                        {
718                        # XXX: Tests will fail if all SSL/TLS
719                        # protocols are disabled.
720                        foreach my $proto (@tls)
721                                {
722                                $disabled{$proto} = "option(tls)";
723                                }
724                        }
725                elsif ($1 eq "static-engine")
726                        {
727                        delete $disabled{"dynamic-engine"};
728                        }
729                elsif ($1 eq "dynamic-engine")
730                        {
731                        $disabled{"dynamic-engine"} = "option";
732                        }
733                elsif (exists $deprecated_disablables{$1})
734                        {
735                        if ($deprecated_disablables{$1} ne "")
736                                {
737                                $deprecated_options{$_} = 1;
738                                if (defined $deprecated_disablables{$1})
739                                        {
740                                        $disabled{$deprecated_disablables{$1}} = "option";
741                                        }
742                                }
743                        }
744                else
745                        {
746                        $disabled{$1} = "option";
747                        }
748                # No longer an automatic choice
749                $auto_threads = 0 if ($1 eq "threads");
750                }
751        elsif (/^enable-(.+)$/)
752                {
753                if ($1 eq "static-engine")
754                        {
755                        $disabled{"dynamic-engine"} = "option";
756                        }
757                elsif ($1 eq "dynamic-engine")
758                        {
759                        delete $disabled{"dynamic-engine"};
760                        }
761                elsif ($1 eq "zlib-dynamic")
762                        {
763                        delete $disabled{"zlib"};
764                        }
765                my $algo = $1;
766                delete $disabled{$algo};
767
768                # No longer an automatic choice
769                $auto_threads = 0 if ($1 eq "threads");
770                }
771        elsif (/^--strict-warnings$/)
772                {
773                # Pretend that our strict flags is a C flag, and replace it
774                # with the proper flags later on
775                push @{$useradd{CFLAGS}}, '--ossl-strict-warnings';
776                $strict_warnings=1;
777                }
778        elsif (/^--debug$/)
779                {
780                $config{build_type} = "debug";
781                }
782        elsif (/^--release$/)
783                {
784                $config{build_type} = "release";
785                }
786        elsif (/^386$/)
787                { $config{processor}=386; }
788        elsif (/^fips$/)
789                {
790                die "FIPS mode not supported\n";
791                }
792        elsif (/^rsaref$/)
793                {
794                # No RSAref support any more since it's not needed.
795                # The check for the option is there so scripts aren't
796                # broken
797                }
798        elsif (/^nofipscanistercheck$/)
799                {
800                die "FIPS mode not supported\n";
801                }
802        elsif (m|^[-+/]|)
803                {
804                if (/^--prefix=(.*)$/)
805                        {
806                        $config{prefix}=$1;
807                        die "Directory given with --prefix MUST be absolute\n"
808                                unless file_name_is_absolute($config{prefix});
809                        }
810                elsif (/^--api=(.*)$/)
811                        {
812                        $config{api}=$1;
813                        }
814                elsif (/^--libdir=(.*)$/)
815                        {
816                        $config{libdir}=$1;
817                        }
818                elsif (/^--openssldir=(.*)$/)
819                        {
820                        $config{openssldir}=$1;
821                        }
822                elsif (/^--with-zlib-lib=(.*)$/)
823                        {
824                        $withargs{zlib_lib}=$1;
825                        }
826                elsif (/^--with-zlib-include=(.*)$/)
827                        {
828                        $withargs{zlib_include}=$1;
829                        }
830                elsif (/^--with-fuzzer-lib=(.*)$/)
831                        {
832                        $withargs{fuzzer_lib}=$1;
833                        }
834                elsif (/^--with-fuzzer-include=(.*)$/)
835                        {
836                        $withargs{fuzzer_include}=$1;
837                        }
838                elsif (/^--with-rand-seed=(.*)$/)
839                        {
840                        foreach my $x (split(m|,|, $1))
841                            {
842                            die "Unknown --with-rand-seed choice $x\n"
843                                if ! grep { $x eq $_ } @known_seed_sources;
844                            push @seed_sources, $x;
845                            }
846                        }
847                elsif (/^--cross-compile-prefix=(.*)$/)
848                        {
849                        $user{CROSS_COMPILE}=$1;
850                        }
851                elsif (/^--config=(.*)$/)
852                        {
853                        read_config $1;
854                        }
855                elsif (/^-l(.*)$/)
856                        {
857                        push @{$useradd{LDLIBS}}, $_;
858                        }
859                elsif (/^-framework$/)
860                        {
861                        push @{$useradd{LDLIBS}}, $_, shift(@argvcopy);
862                        }
863                elsif (/^-L(.*)$/ or /^-Wl,/)
864                        {
865                        push @{$useradd{LDFLAGS}}, $_;
866                        }
867                elsif (/^-rpath$/ or /^-R$/)
868                        # -rpath is the OSF1 rpath flag
869                        # -R is the old Solaris rpath flag
870                        {
871                        my $rpath = shift(@argvcopy) || "";
872                        $rpath .= " " if $rpath ne "";
873                        push @{$useradd{LDFLAGS}}, $_, $rpath;
874                        }
875                elsif (/^-static$/)
876                        {
877                        push @{$useradd{LDFLAGS}}, $_;
878                        }
879                elsif (m|^[-/]D(.*)$|)
880                        {
881                        push @{$useradd{CPPDEFINES}}, $1;
882                        }
883                elsif (m|^[-/]I(.*)$|)
884                        {
885                        push @{$useradd{CPPINCLUDES}}, $1;
886                        }
887                elsif (/^-Wp,$/)
888                        {
889                        push @{$useradd{CPPFLAGS}}, $1;
890                        }
891                else    # common if (/^[-+]/), just pass down...
892                        {
893                        # Treat %xx as an ASCII code (e.g. replace %20 by a space character).
894                        # This provides a simple way to pass options with arguments separated
895                        # by spaces without quoting (e.g. -opt%20arg translates to -opt arg).
896                        $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
897                        push @{$useradd{CFLAGS}}, $_;
898                        push @{$useradd{CXXFLAGS}}, $_;
899                        }
900                }
901        elsif (m|^/|)
902                {
903                # Treat %xx as an ASCII code (e.g. replace %20 by a space character).
904                # This provides a simple way to pass options with arguments separated
905                # by spaces without quoting (e.g. /opt%20arg translates to /opt arg).
906                $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
907                push @{$useradd{CFLAGS}}, $_;
908                push @{$useradd{CXXFLAGS}}, $_;
909                }
910        else
911                {
912                die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
913                $target=$_;
914                }
915        unless ($_ eq $target || /^no-/ || /^disable-/)
916                {
917                # "no-..." follows later after implied deactivations
918                # have been derived.  (Don't take this too seriously,
919                # we really only write OPTIONS to the Makefile out of
920                # nostalgia.)
921
922                if ($config{options} eq "")
923                        { $config{options} = $_; }
924                else
925                        { $config{options} .= " ".$_; }
926                }
927        }
928
929if (defined($config{api}) && !exists $apitable->{$config{api}}) {
930        die "***** Unsupported api compatibility level: $config{api}\n",
931}
932
933if (keys %deprecated_options)
934        {
935        warn "***** Deprecated options: ",
936                join(", ", keys %deprecated_options), "\n";
937        }
938if (keys %unsupported_options)
939        {
940        die "***** Unsupported options: ",
941                join(", ", keys %unsupported_options), "\n";
942        }
943
944# If any %useradd entry has been set, we must check that the "make
945# variables" haven't been set.  We start by checking of any %useradd entry
946# is set.
947if (grep { scalar @$_ > 0 } values %useradd) {
948    # Hash of env / make variables names.  The possible values are:
949    # 1 - "make vars"
950    # 2 - %useradd entry set
951    # 3 - both set
952    my %detected_vars =
953        map { my $v = 0;
954              $v += 1 if $cmdvars{$_};
955              $v += 2 if @{$useradd{$_}};
956              $_ => $v }
957        keys %useradd;
958
959    # If any of the corresponding "make variables" is set, we error
960    if (grep { $_ & 1 } values %detected_vars) {
961        my $names = join(', ', grep { $detected_vars{$_} > 0 }
962                               sort keys %detected_vars);
963        die <<"_____";
964***** Mixing make variables and additional compiler/linker flags as
965***** configure command line option is not permitted.
966***** Affected make variables: $names
967_____
968    }
969}
970
971# Check through all supported command line variables to see if any of them
972# were set, and canonicalise the values we got.  If no compiler or linker
973# flag or anything else that affects %useradd was set, we also check the
974# environment for values.
975my $anyuseradd =
976    grep { defined $_ && (ref $_ ne 'ARRAY' || @$_) } values %useradd;
977foreach (keys %user) {
978    my $value = $cmdvars{$_};
979    $value //= env($_) unless $anyuseradd;
980    $value //=
981        defined $user_synonyms{$_} ? $cmdvars{$user_synonyms{$_}} : undef;
982    $value //= defined $user_synonyms{$_} ? env($user_synonyms{$_}) : undef
983        unless $anyuseradd;
984
985    if (defined $value) {
986        if (ref $user{$_} eq 'ARRAY') {
987            if ($_ eq 'CPPDEFINES' || $_ eq 'CPPINCLUDES') {
988                $user{$_} = [ split /$list_separator_re/, $value ];
989            } else {
990                $user{$_} = [ $value ];
991            }
992        } elsif (!defined $user{$_}) {
993            $user{$_} = $value;
994        }
995    }
996}
997
998if (grep { /-rpath\b/ } ($user{LDFLAGS} ? @{$user{LDFLAGS}} : ())
999    && !$disabled{shared}
1000    && !($disabled{asan} && $disabled{msan} && $disabled{ubsan})) {
1001    die "***** Cannot simultaneously use -rpath, shared libraries, and\n",
1002        "***** any of asan, msan or ubsan\n";
1003}
1004
1005sub disable {
1006    my $disable_type = shift;
1007
1008    for (@_) {
1009        $disabled{$_} = $disable_type;
1010    }
1011
1012    my @tocheckfor = (@_ ? @_ : keys %disabled);
1013    while (@tocheckfor) {
1014        my %new_tocheckfor = ();
1015        my @cascade_copy = (@disable_cascades);
1016        while (@cascade_copy) {
1017            my ($test, $descendents) =
1018                (shift @cascade_copy, shift @cascade_copy);
1019            if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
1020                foreach (grep { !defined($disabled{$_}) } @$descendents) {
1021                    $new_tocheckfor{$_} = 1; $disabled{$_} = "cascade";
1022                }
1023            }
1024        }
1025        @tocheckfor = (keys %new_tocheckfor);
1026    }
1027}
1028disable();                     # First cascade run
1029
1030our $die = sub { die @_; };
1031if ($target eq "TABLE") {
1032    local $die = sub { warn @_; };
1033    foreach (sort keys %table) {
1034        print_table_entry($_, "TABLE");
1035    }
1036    exit 0;
1037}
1038
1039if ($target eq "LIST") {
1040    foreach (sort keys %table) {
1041        print $_,"\n" unless $table{$_}->{template};
1042    }
1043    exit 0;
1044}
1045
1046if ($target eq "HASH") {
1047    local $die = sub { warn @_; };
1048    print "%table = (\n";
1049    foreach (sort keys %table) {
1050        print_table_entry($_, "HASH");
1051    }
1052    exit 0;
1053}
1054
1055print "Configuring OpenSSL version $config{version} ($config{version_num}) ";
1056print "for $target\n";
1057
1058if (scalar(@seed_sources) == 0) {
1059    print "Using os-specific seed configuration\n";
1060    push @seed_sources, 'os';
1061}
1062if (scalar(grep { $_ eq 'egd' } @seed_sources) > 0) {
1063    delete $disabled{'egd'};
1064}
1065if (scalar(grep { $_ eq 'none' } @seed_sources) > 0) {
1066    die "Cannot seed with none and anything else" if scalar(@seed_sources) > 1;
1067    warn <<_____ if scalar(@seed_sources) == 1;
1068
1069============================== WARNING ===============================
1070You have selected the --with-rand-seed=none option, which effectively
1071disables automatic reseeding of the OpenSSL random generator.
1072All operations depending on the random generator such as creating keys
1073will not work unless the random generator is seeded manually by the
1074application.
1075
1076Please read the 'Note on random number generation' section in the
1077INSTALL instructions and the RAND_DRBG(7) manual page for more details.
1078============================== WARNING ===============================
1079
1080_____
1081}
1082push @{$config{openssl_other_defines}},
1083     map { (my $x = $_) =~ tr|[\-a-z]|[_A-Z]|; "OPENSSL_RAND_SEED_$x" }
1084        @seed_sources;
1085
1086# Backward compatibility?
1087if ($target =~ m/^CygWin32(-.*)$/) {
1088    $target = "Cygwin".$1;
1089}
1090
1091# Support for legacy targets having a name starting with 'debug-'
1092my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
1093if ($d) {
1094    $config{build_type} = "debug";
1095
1096    # If we do not find debug-foo in the table, the target is set to foo.
1097    if (!$table{$target}) {
1098        $target = $t;
1099    }
1100}
1101
1102&usage if !$table{$target} || $table{$target}->{template};
1103
1104$config{target} = $target;
1105my %target = resolve_config($target);
1106
1107foreach (keys %target_attr_translate) {
1108    $target{$target_attr_translate{$_}} = $target{$_}
1109        if $target{$_};
1110    delete $target{$_};
1111}
1112
1113%target = ( %{$table{DEFAULTS}}, %target );
1114
1115my %conf_files = map { $_ => 1 } (@{$target{_conf_fname_int}});
1116$config{conf_files} = [ sort keys %conf_files ];
1117
1118# Using sub disable within these loops may prove fragile, so we run
1119# a cascade afterwards
1120foreach my $feature (@{$target{disable}}) {
1121    if (exists $deprecated_disablables{$feature}) {
1122        warn "***** config $target disables deprecated feature $feature\n";
1123    } elsif (!grep { $feature eq $_ } @disablables) {
1124        die "***** config $target disables unknown feature $feature\n";
1125    }
1126    $disabled{$feature} = 'config';
1127}
1128foreach my $feature (@{$target{enable}}) {
1129    if ("default" eq ($disabled{$feature} // "")) {
1130        if (exists $deprecated_disablables{$feature}) {
1131            warn "***** config $target enables deprecated feature $feature\n";
1132        } elsif (!grep { $feature eq $_ } @disablables) {
1133            die "***** config $target enables unknown feature $feature\n";
1134        }
1135        delete $disabled{$feature};
1136    }
1137}
1138disable();                      # Run a cascade now
1139
1140$target{CXXFLAGS}//=$target{CFLAGS} if $target{CXX};
1141$target{cxxflags}//=$target{cflags} if $target{CXX};
1142$target{exe_extension}="";
1143$target{exe_extension}=".exe" if ($config{target} eq "DJGPP"
1144                                  || $config{target} =~ /^(?:Cygwin|mingw)/);
1145$target{exe_extension}=".pm"  if ($config{target} =~ /vos/);
1146
1147($target{shared_extension_simple}=$target{shared_extension})
1148    =~ s|\.\$\(SHLIB_VERSION_NUMBER\)||
1149    unless defined($target{shared_extension_simple});
1150$target{dso_extension}//=$target{shared_extension_simple};
1151($target{shared_import_extension}=$target{shared_extension_simple}.".a")
1152    if ($config{target} =~ /^(?:Cygwin|mingw)/);
1153
1154# Fill %config with values from %user, and in case those are undefined or
1155# empty, use values from %target (acting as a default).
1156foreach (keys %user) {
1157    my $ref_type = ref $user{$_};
1158
1159    # Temporary function.  Takes an intended ref type (empty string or "ARRAY")
1160    # and a value that's to be coerced into that type.
1161    my $mkvalue = sub {
1162        my $type = shift;
1163        my $value = shift;
1164        my $undef_p = shift;
1165
1166        die "Too many arguments for \$mkvalue" if @_;
1167
1168        while (ref $value eq 'CODE') {
1169            $value = $value->();
1170        }
1171
1172        if ($type eq 'ARRAY') {
1173            return undef unless defined $value;
1174            return undef if ref $value ne 'ARRAY' && !$value;
1175            return undef if ref $value eq 'ARRAY' && !@$value;
1176            return [ $value ] unless ref $value eq 'ARRAY';
1177        }
1178        return undef unless $value;
1179        return $value;
1180    };
1181
1182    $config{$_} =
1183        $mkvalue->($ref_type, $user{$_})
1184        || $mkvalue->($ref_type, $target{$_});
1185    delete $config{$_} unless defined $config{$_};
1186}
1187
1188# Finish up %config by appending things the user gave us on the command line
1189# apart from "make variables"
1190foreach (keys %useradd) {
1191    # The must all be lists, so we assert that here
1192    die "internal error: \$useradd{$_} isn't an ARRAY\n"
1193        unless ref $useradd{$_} eq 'ARRAY';
1194
1195    if (defined $config{$_}) {
1196        push @{$config{$_}}, @{$useradd{$_}};
1197    } else {
1198        $config{$_} = [ @{$useradd{$_}} ];
1199    }
1200}
1201# At this point, we can forget everything about %user and %useradd,
1202# because it's now all been merged into the corresponding $config entry
1203
1204# Allow overriding the build file name
1205$config{build_file} = env('BUILDFILE') || $target{build_file} || "Makefile";
1206
1207# Make sure build_scheme is consistent.
1208$target{build_scheme} = [ $target{build_scheme} ]
1209    if ref($target{build_scheme}) ne "ARRAY";
1210
1211my ($builder, $builder_platform, @builder_opts) =
1212    @{$target{build_scheme}};
1213
1214foreach my $checker (($builder_platform."-".$target{build_file}."-checker.pm",
1215                      $builder_platform."-checker.pm")) {
1216    my $checker_path = catfile($srcdir, "Configurations", $checker);
1217    if (-f $checker_path) {
1218        my $fn = $ENV{CONFIGURE_CHECKER_WARN}
1219            ? sub { warn $@; } : sub { die $@; };
1220        if (! do $checker_path) {
1221            if ($@) {
1222                $fn->($@);
1223            } elsif ($!) {
1224                $fn->($!);
1225            } else {
1226                $fn->("The detected tools didn't match the platform\n");
1227            }
1228        }
1229        last;
1230    }
1231}
1232
1233push @{$config{defines}}, "NDEBUG"    if $config{build_type} eq "release";
1234
1235if ($target =~ /^mingw/ && `$config{CC} --target-help 2>&1` =~ m/-mno-cygwin/m)
1236        {
1237        push @{$config{cflags}}, "-mno-cygwin";
1238        push @{$config{cxxflags}}, "-mno-cygwin" if $config{CXX};
1239        push @{$config{shared_ldflag}}, "-mno-cygwin";
1240        }
1241
1242if ($target =~ /linux.*-mips/ && !$disabled{asm}
1243        && !grep { $_ !~ /-m(ips|arch=)/ } (@{$config{CFLAGS}})) {
1244        # minimally required architecture flags for assembly modules
1245        my $value;
1246        $value = '-mips2' if ($target =~ /mips32/);
1247        $value = '-mips3' if ($target =~ /mips64/);
1248        unshift @{$config{cflags}}, $value;
1249        unshift @{$config{cxxflags}}, $value if $config{CXX};
1250}
1251
1252# If threads aren't disabled, check how possible they are
1253unless ($disabled{threads}) {
1254    if ($auto_threads) {
1255        # Enabled by default, disable it forcibly if unavailable
1256        if ($target{thread_scheme} eq "(unknown)") {
1257            disable("unavailable", 'threads');
1258        }
1259    } else {
1260        # The user chose to enable threads explicitly, let's see
1261        # if there's a chance that's possible
1262        if ($target{thread_scheme} eq "(unknown)") {
1263            # If the user asked for "threads" and we don't have internal
1264            # knowledge how to do it, [s]he is expected to provide any
1265            # system-dependent compiler options that are necessary.  We
1266            # can't truly check that the given options are correct, but
1267            # we expect the user to know what [s]He is doing.
1268            if (!@{$config{CFLAGS}} && !@{$config{CPPDEFINES}}) {
1269                die "You asked for multi-threading support, but didn't\n"
1270                    ,"provide any system-specific compiler options\n";
1271            }
1272        }
1273    }
1274}
1275
1276# If threads still aren't disabled, add a C macro to ensure the source
1277# code knows about it.  Any other flag is taken care of by the configs.
1278unless($disabled{threads}) {
1279    push @{$config{openssl_thread_defines}}, "OPENSSL_THREADS";
1280}
1281
1282# With "deprecated" disable all deprecated features.
1283if (defined($disabled{"deprecated"})) {
1284        $config{api} = $maxapi;
1285}
1286
1287my $no_shared_warn=0;
1288if ($target{shared_target} eq "")
1289        {
1290        $no_shared_warn = 1
1291            if (!$disabled{shared} || !$disabled{"dynamic-engine"});
1292        disable('no-shared-target', 'pic');
1293        }
1294
1295if ($disabled{"dynamic-engine"}) {
1296        $config{dynamic_engines} = 0;
1297} else {
1298        $config{dynamic_engines} = 1;
1299}
1300
1301unless ($disabled{asan}) {
1302    push @{$config{cflags}}, "-fsanitize=address";
1303}
1304
1305unless ($disabled{ubsan}) {
1306    # -DPEDANTIC or -fnosanitize=alignment may also be required on some
1307    # platforms.
1308    push @{$config{cflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all";
1309}
1310
1311unless ($disabled{msan}) {
1312  push @{$config{cflags}}, "-fsanitize=memory";
1313}
1314
1315unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
1316        && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
1317    push @{$config{cflags}}, "-fno-omit-frame-pointer", "-g";
1318    push @{$config{cxxflags}}, "-fno-omit-frame-pointer", "-g" if $config{CXX};
1319}
1320#
1321# Platform fix-ups
1322#
1323
1324# This saves the build files from having to check
1325if ($disabled{pic})
1326        {
1327        foreach (qw(shared_cflag shared_cxxflag shared_cppflag
1328                    shared_defines shared_includes shared_ldflag
1329                    module_cflags module_cxxflags module_cppflags
1330                    module_defines module_includes module_lflags))
1331                {
1332                delete $config{$_};
1333                $target{$_} = "";
1334                }
1335        }
1336else
1337        {
1338        push @{$config{lib_defines}}, "OPENSSL_PIC";
1339        }
1340
1341if ($target{sys_id} ne "")
1342        {
1343        push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
1344        }
1345
1346unless ($disabled{asm}) {
1347    $target{cpuid_asm_src}=$table{DEFAULTS}->{cpuid_asm_src} if ($config{processor} eq "386");
1348    push @{$config{lib_defines}}, "OPENSSL_CPUID_OBJ" if ($target{cpuid_asm_src} ne "mem_clr.c");
1349
1350    $target{bn_asm_src} =~ s/\w+-gf2m.c// if (defined($disabled{ec2m}));
1351
1352    # bn-586 is the only one implementing bn_*_part_words
1353    push @{$config{lib_defines}}, "OPENSSL_BN_ASM_PART_WORDS" if ($target{bn_asm_src} =~ /bn-586/);
1354    push @{$config{lib_defines}}, "OPENSSL_IA32_SSE2" if (!$disabled{sse2} && $target{bn_asm_src} =~ /86/);
1355
1356    push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT" if ($target{bn_asm_src} =~ /-mont/);
1357    push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT5" if ($target{bn_asm_src} =~ /-mont5/);
1358    push @{$config{lib_defines}}, "OPENSSL_BN_ASM_GF2m" if ($target{bn_asm_src} =~ /-gf2m/);
1359    push @{$config{lib_defines}}, "BN_DIV3W" if ($target{bn_asm_src} =~ /-div3w/);
1360
1361    if ($target{sha1_asm_src}) {
1362        push @{$config{lib_defines}}, "SHA1_ASM"   if ($target{sha1_asm_src} =~ /sx86/ || $target{sha1_asm_src} =~ /sha1/);
1363        push @{$config{lib_defines}}, "SHA256_ASM" if ($target{sha1_asm_src} =~ /sha256/);
1364        push @{$config{lib_defines}}, "SHA512_ASM" if ($target{sha1_asm_src} =~ /sha512/);
1365    }
1366    if ($target{keccak1600_asm_src} ne $table{DEFAULTS}->{keccak1600_asm_src}) {
1367        push @{$config{lib_defines}}, "KECCAK1600_ASM";
1368    }
1369    if ($target{rc4_asm_src} ne $table{DEFAULTS}->{rc4_asm_src}) {
1370        push @{$config{lib_defines}}, "RC4_ASM";
1371    }
1372    if ($target{md5_asm_src}) {
1373        push @{$config{lib_defines}}, "MD5_ASM";
1374    }
1375    $target{cast_asm_src}=$table{DEFAULTS}->{cast_asm_src} unless $disabled{pic}; # CAST assembler is not PIC
1376    if ($target{rmd160_asm_src}) {
1377        push @{$config{lib_defines}}, "RMD160_ASM";
1378    }
1379    if ($target{aes_asm_src}) {
1380        push @{$config{lib_defines}}, "AES_ASM" if ($target{aes_asm_src} =~ m/\baes-/);;
1381        push @{$config{lib_defines}}, "AESNI_ASM" if ($target{aes_asm_src} =~ m/\baesni-/);;
1382        # aes-ctr.fake is not a real file, only indication that assembler
1383        # module implements AES_ctr32_encrypt...
1384        push @{$config{lib_defines}}, "AES_CTR_ASM" if ($target{aes_asm_src} =~ s/\s*aes-ctr\.fake//);
1385        # aes-xts.fake indicates presence of AES_xts_[en|de]crypt...
1386        push @{$config{lib_defines}}, "AES_XTS_ASM" if ($target{aes_asm_src} =~ s/\s*aes-xts\.fake//);
1387        $target{aes_asm_src} =~ s/\s*(vpaes|aesni)-x86\.s//g if ($disabled{sse2});
1388        push @{$config{lib_defines}}, "VPAES_ASM" if ($target{aes_asm_src} =~ m/vpaes/);
1389        push @{$config{lib_defines}}, "BSAES_ASM" if ($target{aes_asm_src} =~ m/bsaes/);
1390    }
1391    if ($target{wp_asm_src} =~ /mmx/) {
1392        if ($config{processor} eq "386") {
1393            $target{wp_asm_src}=$table{DEFAULTS}->{wp_asm_src};
1394        } elsif (!$disabled{"whirlpool"}) {
1395            push @{$config{lib_defines}}, "WHIRLPOOL_ASM";
1396        }
1397    }
1398    if ($target{modes_asm_src} =~ /ghash-/) {
1399        push @{$config{lib_defines}}, "GHASH_ASM";
1400    }
1401    if ($target{ec_asm_src} =~ /ecp_nistz256/) {
1402        push @{$config{lib_defines}}, "ECP_NISTZ256_ASM";
1403    }
1404    if ($target{ec_asm_src} =~ /x25519/) {
1405        push @{$config{lib_defines}}, "X25519_ASM";
1406    }
1407    if ($target{padlock_asm_src} ne $table{DEFAULTS}->{padlock_asm_src}) {
1408        push @{$config{dso_defines}}, "PADLOCK_ASM";
1409    }
1410    if ($target{poly1305_asm_src} ne "") {
1411        push @{$config{lib_defines}}, "POLY1305_ASM";
1412    }
1413}
1414
1415my %predefined_C = compiler_predefined($config{CROSS_COMPILE}.$config{CC});
1416my %predefined_CXX = $config{CXX}
1417    ? compiler_predefined($config{CROSS_COMPILE}.$config{CXX})
1418    : ();
1419
1420# Check for makedepend capabilities.
1421if (!$disabled{makedepend}) {
1422    if ($config{target} =~ /^(VC|vms)-/) {
1423        # For VC- and vms- targets, there's nothing more to do here.  The
1424        # functionality is hard coded in the corresponding build files for
1425        # cl (Windows) and CC/DECC (VMS).
1426    } elsif (($predefined_C{__GNUC__} // -1) >= 3
1427             && !($predefined_C{__APPLE_CC__} && !$predefined_C{__clang__})) {
1428        # We know that GNU C version 3 and up as well as all clang
1429        # versions support dependency generation, but Xcode did not
1430        # handle $cc -M before clang support (but claims __GNUC__ = 3)
1431        $config{makedepprog} = "\$(CROSS_COMPILE)$config{CC}";
1432    } else {
1433        # In all other cases, we look for 'makedepend', and disable the
1434        # capability if not found.
1435        $config{makedepprog} = which('makedepend');
1436        disable('unavailable', 'makedepend') unless $config{makedepprog};
1437    }
1438}
1439
1440if (!$disabled{asm} && !$predefined_C{__MACH__} && $^O ne 'VMS') {
1441    # probe for -Wa,--noexecstack option...
1442    if ($predefined_C{__clang__}) {
1443        # clang has builtin assembler, which doesn't recognize --help,
1444        # but it apparently recognizes the option in question on all
1445        # supported platforms even when it's meaningless. In other words
1446        # probe would fail, but probed option always accepted...
1447        push @{$config{cflags}}, "-Wa,--noexecstack", "-Qunused-arguments";
1448    } else {
1449        my $cc = $config{CROSS_COMPILE}.$config{CC};
1450        open(PIPE, "$cc -Wa,--help -c -o null.$$.o -x assembler /dev/null 2>&1 |");
1451        while(<PIPE>) {
1452            if (m/--noexecstack/) {
1453                push @{$config{cflags}}, "-Wa,--noexecstack";
1454                last;
1455            }
1456        }
1457        close(PIPE);
1458        unlink("null.$$.o");
1459    }
1460}
1461
1462# Deal with bn_ops ###################################################
1463
1464$config{bn_ll}                  =0;
1465$config{export_var_as_fn}       =0;
1466my $def_int="unsigned int";
1467$config{rc4_int}                =$def_int;
1468($config{b64l},$config{b64},$config{b32})=(0,0,1);
1469
1470my $count = 0;
1471foreach (sort split(/\s+/,$target{bn_ops})) {
1472    $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
1473    $config{export_var_as_fn}=1                 if $_ eq 'EXPORT_VAR_AS_FN';
1474    $config{bn_ll}=1                            if $_ eq 'BN_LLONG';
1475    $config{rc4_int}="unsigned char"            if $_ eq 'RC4_CHAR';
1476    ($config{b64l},$config{b64},$config{b32})
1477        =(0,1,0)                                if $_ eq 'SIXTY_FOUR_BIT';
1478    ($config{b64l},$config{b64},$config{b32})
1479        =(1,0,0)                                if $_ eq 'SIXTY_FOUR_BIT_LONG';
1480    ($config{b64l},$config{b64},$config{b32})
1481        =(0,0,1)                                if $_ eq 'THIRTY_TWO_BIT';
1482}
1483die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
1484    if $count > 1;
1485
1486
1487# Hack cflags for better warnings (dev option) #######################
1488
1489# "Stringify" the C and C++ flags string.  This permits it to be made part of
1490# a string and works as well on command lines.
1491$config{cflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1492                        @{$config{cflags}} ];
1493$config{cxxflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1494                          @{$config{cxxflags}} ] if $config{CXX};
1495
1496if (defined($config{api})) {
1497    $config{openssl_api_defines} = [ "OPENSSL_MIN_API=".$apitable->{$config{api}} ];
1498    my $apiflag = sprintf("OPENSSL_API_COMPAT=%s", $apitable->{$config{api}});
1499    push @{$config{defines}}, $apiflag;
1500}
1501
1502my @strict_warnings_collection=();
1503if ($strict_warnings)
1504        {
1505        my $wopt;
1506        my $gccver = $predefined_C{__GNUC__} // -1;
1507
1508        if ($gccver >= 4)
1509                {
1510                push @strict_warnings_collection, @gcc_devteam_warn;
1511                push @strict_warnings_collection, @clang_devteam_warn
1512                    if (defined($predefined_C{__clang__}));
1513                }
1514        elsif ($config{target} =~ /^VC-/)
1515                {
1516                push @strict_warnings_collection, @cl_devteam_warn;
1517                }
1518        else
1519                {
1520                warn "WARNING --strict-warnings requires gcc[>=4] or gcc-alike, or MSVC"
1521                }
1522        }
1523
1524if (grep { $_ eq '-static' } @{$config{LDFLAGS}}) {
1525    disable('static', 'pic', 'threads');
1526}
1527
1528$config{CFLAGS} = [ map { $_ eq '--ossl-strict-warnings'
1529                              ? @strict_warnings_collection
1530                              : ( $_ ) }
1531                    @{$config{CFLAGS}} ];
1532
1533unless ($disabled{"crypto-mdebug-backtrace"})
1534        {
1535        foreach my $wopt (split /\s+/, $memleak_devteam_backtrace)
1536                {
1537                push @{$config{cflags}}, $wopt
1538                        unless grep { $_ eq $wopt } @{$config{cflags}};
1539                }
1540        if ($target =~ /^BSD-/)
1541                {
1542                push @{$config{ex_libs}}, "-lexecinfo";
1543                }
1544        }
1545
1546unless ($disabled{afalgeng}) {
1547    $config{afalgeng}="";
1548    if (grep { $_ eq 'afalgeng' } @{$target{enable}}) {
1549        my $minver = 4*10000 + 1*100 + 0;
1550        if ($config{CROSS_COMPILE} eq "") {
1551            my $verstr = `uname -r`;
1552            my ($ma, $mi1, $mi2) = split("\\.", $verstr);
1553            ($mi2) = $mi2 =~ /(\d+)/;
1554            my $ver = $ma*10000 + $mi1*100 + $mi2;
1555            if ($ver < $minver) {
1556                disable('too-old-kernel', 'afalgeng');
1557            } else {
1558                push @{$config{engdirs}}, "afalg";
1559            }
1560        } else {
1561            disable('cross-compiling', 'afalgeng');
1562        }
1563    } else {
1564        disable('not-linux', 'afalgeng');
1565    }
1566}
1567
1568unless ($disabled{devcryptoeng}) {
1569    if ($target =~ m/^BSD/) {
1570        my $maxver = 5*100 + 7;
1571        my $sysstr = `uname -s`;
1572        my $verstr = `uname -r`;
1573        $sysstr =~ s|\R$||;
1574        $verstr =~ s|\R$||;
1575        my ($ma, $mi, @rest) = split m|\.|, $verstr;
1576        my $ver = $ma*100 + $mi;
1577        if ($sysstr eq 'OpenBSD' && $ver >= $maxver) {
1578            disable('too-new-kernel', 'devcryptoeng');
1579        }
1580    }
1581}
1582
1583# Get the extra flags used when building shared libraries and modules.  We
1584# do this late because some of them depend on %disabled.
1585
1586# Make the flags to build DSOs the same as for shared libraries unless they
1587# are already defined
1588$target{module_cflags} = $target{shared_cflag} unless defined $target{module_cflags};
1589$target{module_cxxflags} = $target{shared_cxxflag} unless defined $target{module_cxxflags};
1590$target{module_ldflags} = $target{shared_ldflag} unless defined $target{module_ldflags};
1591{
1592    my $shared_info_pl =
1593        catfile(dirname($0), "Configurations", "shared-info.pl");
1594    my %shared_info = read_eval_file($shared_info_pl);
1595    push @{$target{_conf_fname_int}}, $shared_info_pl;
1596    my $si = $target{shared_target};
1597    while (ref $si ne "HASH") {
1598        last if ! defined $si;
1599        if (ref $si eq "CODE") {
1600            $si = $si->();
1601        } else {
1602            $si = $shared_info{$si};
1603        }
1604    }
1605
1606    # Some of the 'shared_target' values don't have any entries in
1607    # %shared_info.  That's perfectly fine, AS LONG AS the build file
1608    # template knows how to handle this.  That is currently the case for
1609    # Windows and VMS.
1610    if (defined $si) {
1611        # Just as above, copy certain shared_* attributes to the corresponding
1612        # module_ attribute unless the latter is already defined
1613        $si->{module_cflags} = $si->{shared_cflag} unless defined $si->{module_cflags};
1614        $si->{module_cxxflags} = $si->{shared_cxxflag} unless defined $si->{module_cxxflags};
1615        $si->{module_ldflags} = $si->{shared_ldflag} unless defined $si->{module_ldflags};
1616        foreach (sort keys %$si) {
1617            $target{$_} = defined $target{$_}
1618                ? add($si->{$_})->($target{$_})
1619                : $si->{$_};
1620        }
1621    }
1622}
1623
1624# ALL MODIFICATIONS TO %disabled, %config and %target MUST BE DONE FROM HERE ON
1625
1626my %disabled_info = ();         # For configdata.pm
1627foreach my $what (sort keys %disabled) {
1628    $config{options} .= " no-$what";
1629
1630    if (!grep { $what eq $_ } ( 'buildtest-c++', 'threads', 'shared', 'pic',
1631                                'dynamic-engine', 'makedepend',
1632                                'zlib-dynamic', 'zlib', 'sse2' )) {
1633        (my $WHAT = uc $what) =~ s|-|_|g;
1634
1635        # Fix up C macro end names
1636        $WHAT = "RMD160" if $what eq "ripemd";
1637
1638        # fix-up crypto/directory name(s)
1639        $what = "ripemd" if $what eq "rmd160";
1640        $what = "whrlpool" if $what eq "whirlpool";
1641
1642        my $macro = $disabled_info{$what}->{macro} = "OPENSSL_NO_$WHAT";
1643
1644        if ((grep { $what eq $_ } @{$config{sdirs}})
1645                && $what ne 'async' && $what ne 'err' && $what ne 'dso') {
1646            @{$config{sdirs}} = grep { $what ne $_} @{$config{sdirs}};
1647            $disabled_info{$what}->{skipped} = [ catdir('crypto', $what) ];
1648
1649            if ($what ne 'engine') {
1650                push @{$config{openssl_algorithm_defines}}, $macro;
1651            } else {
1652                @{$config{dirs}} = grep !/^engines$/, @{$config{dirs}};
1653                push @{$disabled_info{engine}->{skipped}}, catdir('engines');
1654                push @{$config{openssl_other_defines}}, $macro;
1655            }
1656        } else {
1657            push @{$config{openssl_other_defines}}, $macro;
1658        }
1659
1660    }
1661}
1662
1663if ($disabled{"dynamic-engine"}) {
1664    push @{$config{openssl_other_defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
1665} else {
1666    push @{$config{openssl_other_defines}}, "OPENSSL_NO_STATIC_ENGINE";
1667}
1668
1669# If we use the unified build, collect information from build.info files
1670my %unified_info = ();
1671
1672my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
1673if ($builder eq "unified") {
1674    use with_fallback qw(Text::Template);
1675
1676    sub cleandir {
1677        my $base = shift;
1678        my $dir = shift;
1679        my $relativeto = shift || ".";
1680
1681        $dir = catdir($base,$dir) unless isabsolute($dir);
1682
1683        # Make sure the directories we're building in exists
1684        mkpath($dir);
1685
1686        my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
1687        #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
1688        return $res;
1689    }
1690
1691    sub cleanfile {
1692        my $base = shift;
1693        my $file = shift;
1694        my $relativeto = shift || ".";
1695
1696        $file = catfile($base,$file) unless isabsolute($file);
1697
1698        my $d = dirname($file);
1699        my $f = basename($file);
1700
1701        # Make sure the directories we're building in exists
1702        mkpath($d);
1703
1704        my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
1705        #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
1706        return $res;
1707    }
1708
1709    # Store the name of the template file we will build the build file from
1710    # in %config.  This may be useful for the build file itself.
1711    my @build_file_template_names =
1712        ( $builder_platform."-".$target{build_file}.".tmpl",
1713          $target{build_file}.".tmpl" );
1714    my @build_file_templates = ();
1715
1716    # First, look in the user provided directory, if given
1717    if (defined env($local_config_envname)) {
1718        @build_file_templates =
1719            map {
1720                if ($^O eq 'VMS') {
1721                    # VMS environment variables are logical names,
1722                    # which can be used as is
1723                    $local_config_envname . ':' . $_;
1724                } else {
1725                    catfile(env($local_config_envname), $_);
1726                }
1727            }
1728            @build_file_template_names;
1729    }
1730    # Then, look in our standard directory
1731    push @build_file_templates,
1732        ( map { cleanfile($srcdir, catfile("Configurations", $_), $blddir) }
1733          @build_file_template_names );
1734
1735    my $build_file_template;
1736    for $_ (@build_file_templates) {
1737        $build_file_template = $_;
1738        last if -f $build_file_template;
1739
1740        $build_file_template = undef;
1741    }
1742    if (!defined $build_file_template) {
1743        die "*** Couldn't find any of:\n", join("\n", @build_file_templates), "\n";
1744    }
1745    $config{build_file_templates}
1746      = [ cleanfile($srcdir, catfile("Configurations", "common0.tmpl"),
1747                    $blddir),
1748          $build_file_template,
1749          cleanfile($srcdir, catfile("Configurations", "common.tmpl"),
1750                    $blddir) ];
1751
1752    my @build_infos = ( [ ".", "build.info" ] );
1753    foreach (@{$config{dirs}}) {
1754        push @build_infos, [ $_, "build.info" ]
1755            if (-f catfile($srcdir, $_, "build.info"));
1756    }
1757    foreach (@{$config{sdirs}}) {
1758        push @build_infos, [ catdir("crypto", $_), "build.info" ]
1759            if (-f catfile($srcdir, "crypto", $_, "build.info"));
1760    }
1761    foreach (@{$config{engdirs}}) {
1762        push @build_infos, [ catdir("engines", $_), "build.info" ]
1763            if (-f catfile($srcdir, "engines", $_, "build.info"));
1764    }
1765    foreach (@{$config{tdirs}}) {
1766        push @build_infos, [ catdir("test", $_), "build.info" ]
1767            if (-f catfile($srcdir, "test", $_, "build.info"));
1768    }
1769
1770    $config{build_infos} = [ ];
1771
1772    my %ordinals = ();
1773    foreach (@build_infos) {
1774        my $sourced = catdir($srcdir, $_->[0]);
1775        my $buildd = catdir($blddir, $_->[0]);
1776
1777        mkpath($buildd);
1778
1779        my $f = $_->[1];
1780        # The basic things we're trying to build
1781        my @programs = ();
1782        my @programs_install = ();
1783        my @libraries = ();
1784        my @libraries_install = ();
1785        my @engines = ();
1786        my @engines_install = ();
1787        my @scripts = ();
1788        my @scripts_install = ();
1789        my @extra = ();
1790        my @overrides = ();
1791        my @intermediates = ();
1792        my @rawlines = ();
1793
1794        my %sources = ();
1795        my %shared_sources = ();
1796        my %includes = ();
1797        my %depends = ();
1798        my %renames = ();
1799        my %sharednames = ();
1800        my %generate = ();
1801
1802        # We want to detect configdata.pm in the source tree, so we
1803        # don't use it if the build tree is different.
1804        my $src_configdata = cleanfile($srcdir, "configdata.pm", $blddir);
1805
1806        push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
1807        my $template =
1808            Text::Template->new(TYPE => 'FILE',
1809                                SOURCE => catfile($sourced, $f),
1810                                PREPEND => qq{use lib "$FindBin::Bin/util/perl";});
1811        die "Something went wrong with $sourced/$f: $!\n" unless $template;
1812        my @text =
1813            split /^/m,
1814            $template->fill_in(HASH => { config => \%config,
1815                                         target => \%target,
1816                                         disabled => \%disabled,
1817                                         withargs => \%withargs,
1818                                         builddir => abs2rel($buildd, $blddir),
1819                                         sourcedir => abs2rel($sourced, $blddir),
1820                                         buildtop => abs2rel($blddir, $blddir),
1821                                         sourcetop => abs2rel($srcdir, $blddir) },
1822                               DELIMITERS => [ "{-", "-}" ]);
1823
1824        # The top item of this stack has the following values
1825        # -2 positive already run and we found ELSE (following ELSIF should fail)
1826        # -1 positive already run (skip until ENDIF)
1827        # 0 negatives so far (if we're at a condition, check it)
1828        # 1 last was positive (don't skip lines until next ELSE, ELSIF or ENDIF)
1829        # 2 positive ELSE (following ELSIF should fail)
1830        my @skip = ();
1831        collect_information(
1832            collect_from_array([ @text ],
1833                               qr/\\$/ => sub { my $l1 = shift; my $l2 = shift;
1834                                                $l1 =~ s/\\$//; $l1.$l2 }),
1835            # Info we're looking for
1836            qr/^\s*IF\[((?:\\.|[^\\\]])*)\]\s*$/
1837            => sub {
1838                if (! @skip || $skip[$#skip] > 0) {
1839                    push @skip, !! $1;
1840                } else {
1841                    push @skip, -1;
1842                }
1843            },
1844            qr/^\s*ELSIF\[((?:\\.|[^\\\]])*)\]\s*$/
1845            => sub { die "ELSIF out of scope" if ! @skip;
1846                     die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
1847                     $skip[$#skip] = -1 if $skip[$#skip] != 0;
1848                     $skip[$#skip] = !! $1
1849                         if $skip[$#skip] == 0; },
1850            qr/^\s*ELSE\s*$/
1851            => sub { die "ELSE out of scope" if ! @skip;
1852                     $skip[$#skip] = -2 if $skip[$#skip] != 0;
1853                     $skip[$#skip] = 2 if $skip[$#skip] == 0; },
1854            qr/^\s*ENDIF\s*$/
1855            => sub { die "ENDIF out of scope" if ! @skip;
1856                     pop @skip; },
1857            qr/^\s*PROGRAMS(_NO_INST)?\s*=\s*(.*)\s*$/
1858            => sub {
1859                if (!@skip || $skip[$#skip] > 0) {
1860                    my $install = $1;
1861                    my @x = tokenize($2);
1862                    push @programs, @x;
1863                    push @programs_install, @x unless $install;
1864                }
1865            },
1866            qr/^\s*LIBS(_NO_INST)?\s*=\s*(.*)\s*$/
1867            => sub {
1868                if (!@skip || $skip[$#skip] > 0) {
1869                    my $install = $1;
1870                    my @x = tokenize($2);
1871                    push @libraries, @x;
1872                    push @libraries_install, @x unless $install;
1873                }
1874            },
1875            qr/^\s*ENGINES(_NO_INST)?\s*=\s*(.*)\s*$/
1876            => sub {
1877                if (!@skip || $skip[$#skip] > 0) {
1878                    my $install = $1;
1879                    my @x = tokenize($2);
1880                    push @engines, @x;
1881                    push @engines_install, @x unless $install;
1882                }
1883            },
1884            qr/^\s*SCRIPTS(_NO_INST)?\s*=\s*(.*)\s*$/
1885            => sub {
1886                if (!@skip || $skip[$#skip] > 0) {
1887                    my $install = $1;
1888                    my @x = tokenize($2);
1889                    push @scripts, @x;
1890                    push @scripts_install, @x unless $install;
1891                }
1892            },
1893            qr/^\s*EXTRA\s*=\s*(.*)\s*$/
1894            => sub { push @extra, tokenize($1)
1895                         if !@skip || $skip[$#skip] > 0 },
1896            qr/^\s*OVERRIDES\s*=\s*(.*)\s*$/
1897            => sub { push @overrides, tokenize($1)
1898                         if !@skip || $skip[$#skip] > 0 },
1899
1900            qr/^\s*ORDINALS\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/,
1901            => sub { push @{$ordinals{$1}}, tokenize($2)
1902                         if !@skip || $skip[$#skip] > 0 },
1903            qr/^\s*SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1904            => sub { push @{$sources{$1}}, tokenize($2)
1905                         if !@skip || $skip[$#skip] > 0 },
1906            qr/^\s*SHARED_SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1907            => sub { push @{$shared_sources{$1}}, tokenize($2)
1908                         if !@skip || $skip[$#skip] > 0 },
1909            qr/^\s*INCLUDE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1910            => sub { push @{$includes{$1}}, tokenize($2)
1911                         if !@skip || $skip[$#skip] > 0 },
1912            qr/^\s*DEPEND\[((?:\\.|[^\\\]])*)\]\s*=\s*(.*)\s*$/
1913            => sub { push @{$depends{$1}}, tokenize($2)
1914                         if !@skip || $skip[$#skip] > 0 },
1915            qr/^\s*GENERATE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1916            => sub { push @{$generate{$1}}, $2
1917                         if !@skip || $skip[$#skip] > 0 },
1918            qr/^\s*RENAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1919            => sub { push @{$renames{$1}}, tokenize($2)
1920                         if !@skip || $skip[$#skip] > 0 },
1921            qr/^\s*SHARED_NAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1922            => sub { push @{$sharednames{$1}}, tokenize($2)
1923                         if !@skip || $skip[$#skip] > 0 },
1924            qr/^\s*BEGINRAW\[((?:\\.|[^\\\]])+)\]\s*$/
1925            => sub {
1926                my $lineiterator = shift;
1927                my $target_kind = $1;
1928                while (defined $lineiterator->()) {
1929                    s|\R$||;
1930                    if (/^\s*ENDRAW\[((?:\\.|[^\\\]])+)\]\s*$/) {
1931                        die "ENDRAW doesn't match BEGINRAW"
1932                            if $1 ne $target_kind;
1933                        last;
1934                    }
1935                    next if @skip && $skip[$#skip] <= 0;
1936                    push @rawlines,  $_
1937                        if ($target_kind eq $target{build_file}
1938                            || $target_kind eq $target{build_file}."(".$builder_platform.")");
1939                }
1940            },
1941            qr/^\s*(?:#.*)?$/ => sub { },
1942            "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
1943            "BEFORE" => sub {
1944                if ($buildinfo_debug) {
1945                    print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
1946                    print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1947                }
1948            },
1949            "AFTER" => sub {
1950                if ($buildinfo_debug) {
1951                    print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1952                }
1953            },
1954            );
1955        die "runaway IF?" if (@skip);
1956
1957        foreach (keys %renames) {
1958            die "$_ renamed to more than one thing: "
1959                ,join(" ", @{$renames{$_}}),"\n"
1960                if scalar @{$renames{$_}} > 1;
1961            my $dest = cleanfile($buildd, $_, $blddir);
1962            my $to = cleanfile($buildd, $renames{$_}->[0], $blddir);
1963            die "$dest renamed to more than one thing: "
1964                ,$unified_info{rename}->{$dest}, $to
1965                unless !defined($unified_info{rename}->{$dest})
1966                or $unified_info{rename}->{$dest} eq $to;
1967            $unified_info{rename}->{$dest} = $to;
1968        }
1969
1970        foreach (@programs) {
1971            my $program = cleanfile($buildd, $_, $blddir);
1972            if ($unified_info{rename}->{$program}) {
1973                $program = $unified_info{rename}->{$program};
1974            }
1975            $unified_info{programs}->{$program} = 1;
1976        }
1977
1978        foreach (@programs_install) {
1979            my $program = cleanfile($buildd, $_, $blddir);
1980            if ($unified_info{rename}->{$program}) {
1981                $program = $unified_info{rename}->{$program};
1982            }
1983            $unified_info{install}->{programs}->{$program} = 1;
1984        }
1985
1986        foreach (@libraries) {
1987            my $library = cleanfile($buildd, $_, $blddir);
1988            if ($unified_info{rename}->{$library}) {
1989                $library = $unified_info{rename}->{$library};
1990            }
1991            $unified_info{libraries}->{$library} = 1;
1992        }
1993
1994        foreach (@libraries_install) {
1995            my $library = cleanfile($buildd, $_, $blddir);
1996            if ($unified_info{rename}->{$library}) {
1997                $library = $unified_info{rename}->{$library};
1998            }
1999            $unified_info{install}->{libraries}->{$library} = 1;
2000        }
2001
2002        die <<"EOF" if scalar @engines and !$config{dynamic_engines};
2003ENGINES can only be used if configured with 'dynamic-engine'.
2004This is usually a fault in a build.info file.
2005EOF
2006        foreach (@engines) {
2007            my $library = cleanfile($buildd, $_, $blddir);
2008            if ($unified_info{rename}->{$library}) {
2009                $library = $unified_info{rename}->{$library};
2010            }
2011            $unified_info{engines}->{$library} = 1;
2012        }
2013
2014        foreach (@engines_install) {
2015            my $library = cleanfile($buildd, $_, $blddir);
2016            if ($unified_info{rename}->{$library}) {
2017                $library = $unified_info{rename}->{$library};
2018            }
2019            $unified_info{install}->{engines}->{$library} = 1;
2020        }
2021
2022        foreach (@scripts) {
2023            my $script = cleanfile($buildd, $_, $blddir);
2024            if ($unified_info{rename}->{$script}) {
2025                $script = $unified_info{rename}->{$script};
2026            }
2027            $unified_info{scripts}->{$script} = 1;
2028        }
2029
2030        foreach (@scripts_install) {
2031            my $script = cleanfile($buildd, $_, $blddir);
2032            if ($unified_info{rename}->{$script}) {
2033                $script = $unified_info{rename}->{$script};
2034            }
2035            $unified_info{install}->{scripts}->{$script} = 1;
2036        }
2037
2038        foreach (@extra) {
2039            my $extra = cleanfile($buildd, $_, $blddir);
2040            $unified_info{extra}->{$extra} = 1;
2041        }
2042
2043        foreach (@overrides) {
2044            my $override = cleanfile($buildd, $_, $blddir);
2045            $unified_info{overrides}->{$override} = 1;
2046        }
2047
2048        push @{$unified_info{rawlines}}, @rawlines;
2049
2050        unless ($disabled{shared}) {
2051            # Check sharednames.
2052            foreach (keys %sharednames) {
2053                my $dest = cleanfile($buildd, $_, $blddir);
2054                if ($unified_info{rename}->{$dest}) {
2055                    $dest = $unified_info{rename}->{$dest};
2056                }
2057                die "shared_name for $dest with multiple values: "
2058                    ,join(" ", @{$sharednames{$_}}),"\n"
2059                    if scalar @{$sharednames{$_}} > 1;
2060                my $to = cleanfile($buildd, $sharednames{$_}->[0], $blddir);
2061                die "shared_name found for a library $dest that isn't defined\n"
2062                    unless $unified_info{libraries}->{$dest};
2063                die "shared_name for $dest with multiple values: "
2064                    ,$unified_info{sharednames}->{$dest}, ", ", $to
2065                    unless !defined($unified_info{sharednames}->{$dest})
2066                    or $unified_info{sharednames}->{$dest} eq $to;
2067                $unified_info{sharednames}->{$dest} = $to;
2068            }
2069
2070            # Additionally, we set up sharednames for libraries that don't
2071            # have any, as themselves.  Only for libraries that aren't
2072            # explicitly static.
2073            foreach (grep !/\.a$/, keys %{$unified_info{libraries}}) {
2074                if (!defined $unified_info{sharednames}->{$_}) {
2075                    $unified_info{sharednames}->{$_} = $_
2076                }
2077            }
2078
2079            # Check that we haven't defined any library as both shared and
2080            # explicitly static.  That is forbidden.
2081            my @doubles = ();
2082            foreach (grep /\.a$/, keys %{$unified_info{libraries}}) {
2083                (my $l = $_) =~ s/\.a$//;
2084                push @doubles, $l if defined $unified_info{sharednames}->{$l};
2085            }
2086            die "these libraries are both explicitly static and shared:\n  ",
2087                join(" ", @doubles), "\n"
2088                if @doubles;
2089        }
2090
2091        foreach (keys %sources) {
2092            my $dest = $_;
2093            my $ddest = cleanfile($buildd, $_, $blddir);
2094            if ($unified_info{rename}->{$ddest}) {
2095                $ddest = $unified_info{rename}->{$ddest};
2096            }
2097            foreach (@{$sources{$dest}}) {
2098                my $s = cleanfile($sourced, $_, $blddir);
2099
2100                # If it isn't in the source tree, we assume it's generated
2101                # in the build tree
2102                if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
2103                    $s = cleanfile($buildd, $_, $blddir);
2104                }
2105                # We recognise C++, C and asm files
2106                if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2107                    my $o = $_;
2108                    $o =~ s/\.[csS]$/.o/; # C and assembler
2109                    $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2110                    $o = cleanfile($buildd, $o, $blddir);
2111                    $unified_info{sources}->{$ddest}->{$o} = 1;
2112                    $unified_info{sources}->{$o}->{$s} = 1;
2113                } elsif ($s =~ /\.rc$/) {
2114                    # We also recognise resource files
2115                    my $o = $_;
2116                    $o =~ s/\.rc$/.res/; # Resource configuration
2117                    my $o = cleanfile($buildd, $o, $blddir);
2118                    $unified_info{sources}->{$ddest}->{$o} = 1;
2119                    $unified_info{sources}->{$o}->{$s} = 1;
2120                } else {
2121                    $unified_info{sources}->{$ddest}->{$s} = 1;
2122                }
2123            }
2124        }
2125
2126        foreach (keys %shared_sources) {
2127            my $dest = $_;
2128            my $ddest = cleanfile($buildd, $_, $blddir);
2129            if ($unified_info{rename}->{$ddest}) {
2130                $ddest = $unified_info{rename}->{$ddest};
2131            }
2132            foreach (@{$shared_sources{$dest}}) {
2133                my $s = cleanfile($sourced, $_, $blddir);
2134
2135                # If it isn't in the source tree, we assume it's generated
2136                # in the build tree
2137                if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
2138                    $s = cleanfile($buildd, $_, $blddir);
2139                }
2140
2141                if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2142                    # We recognise C++, C and asm files
2143                    my $o = $_;
2144                    $o =~ s/\.[csS]$/.o/; # C and assembler
2145                    $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2146                    $o = cleanfile($buildd, $o, $blddir);
2147                    $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2148                    $unified_info{sources}->{$o}->{$s} = 1;
2149                } elsif ($s =~ /\.rc$/) {
2150                    # We also recognise resource files
2151                    my $o = $_;
2152                    $o =~ s/\.rc$/.res/; # Resource configuration
2153                    my $o = cleanfile($buildd, $o, $blddir);
2154                    $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2155                    $unified_info{sources}->{$o}->{$s} = 1;
2156                } elsif ($s =~ /\.(def|map|opt)$/) {
2157                    # We also recognise .def / .map / .opt files
2158                    # We know they are generated files
2159                    my $def = cleanfile($buildd, $s, $blddir);
2160                    $unified_info{shared_sources}->{$ddest}->{$def} = 1;
2161                } else {
2162                    die "unrecognised source file type for shared library: $s\n";
2163                }
2164            }
2165        }
2166
2167        foreach (keys %generate) {
2168            my $dest = $_;
2169            my $ddest = cleanfile($buildd, $_, $blddir);
2170            if ($unified_info{rename}->{$ddest}) {
2171                $ddest = $unified_info{rename}->{$ddest};
2172            }
2173            die "more than one generator for $dest: "
2174                    ,join(" ", @{$generate{$_}}),"\n"
2175                    if scalar @{$generate{$_}} > 1;
2176            my @generator = split /\s+/, $generate{$dest}->[0];
2177            $generator[0] = cleanfile($sourced, $generator[0], $blddir),
2178            $unified_info{generate}->{$ddest} = [ @generator ];
2179        }
2180
2181        foreach (keys %depends) {
2182            my $dest = $_;
2183            my $ddest = $dest eq "" ? "" : cleanfile($sourced, $_, $blddir);
2184
2185            # If the destination doesn't exist in source, it can only be
2186            # a generated file in the build tree.
2187            if ($ddest ne "" && ($ddest eq $src_configdata || ! -f $ddest)) {
2188                $ddest = cleanfile($buildd, $_, $blddir);
2189                if ($unified_info{rename}->{$ddest}) {
2190                    $ddest = $unified_info{rename}->{$ddest};
2191                }
2192            }
2193            foreach (@{$depends{$dest}}) {
2194                my $d = cleanfile($sourced, $_, $blddir);
2195
2196                # If we know it's generated, or assume it is because we can't
2197                # find it in the source tree, we set file we depend on to be
2198                # in the build tree rather than the source tree, and assume
2199                # and that there are lines to build it in a BEGINRAW..ENDRAW
2200                # section or in the Makefile template.
2201                if ($d eq $src_configdata
2202                    || ! -f $d
2203                    || (grep { $d eq $_ }
2204                        map { cleanfile($srcdir, $_, $blddir) }
2205                        grep { /\.h$/ } keys %{$unified_info{generate}})) {
2206                    $d = cleanfile($buildd, $_, $blddir);
2207                }
2208                # Take note if the file to depend on is being renamed
2209                # Take extra care with files ending with .a, they should
2210                # be treated without that extension, and the extension
2211                # should be added back after treatment.
2212                $d =~ /(\.a)?$/;
2213                my $e = $1 // "";
2214                $d = $`;
2215                if ($unified_info{rename}->{$d}) {
2216                    $d = $unified_info{rename}->{$d};
2217                }
2218                $d .= $e;
2219                $unified_info{depends}->{$ddest}->{$d} = 1;
2220            }
2221        }
2222
2223        foreach (keys %includes) {
2224            my $dest = $_;
2225            my $ddest = cleanfile($sourced, $_, $blddir);
2226
2227            # If the destination doesn't exist in source, it can only be
2228            # a generated file in the build tree.
2229            if ($ddest eq $src_configdata || ! -f $ddest) {
2230                $ddest = cleanfile($buildd, $_, $blddir);
2231                if ($unified_info{rename}->{$ddest}) {
2232                    $ddest = $unified_info{rename}->{$ddest};
2233                }
2234            }
2235            foreach (@{$includes{$dest}}) {
2236                my $is = cleandir($sourced, $_, $blddir);
2237                my $ib = cleandir($buildd, $_, $blddir);
2238                push @{$unified_info{includes}->{$ddest}->{source}}, $is
2239                    unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
2240                push @{$unified_info{includes}->{$ddest}->{build}}, $ib
2241                    unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
2242            }
2243        }
2244    }
2245
2246    my $ordinals_text = join(', ', sort keys %ordinals);
2247    warn <<"EOF" if $ordinals_text;
2248
2249WARNING: ORDINALS were specified for $ordinals_text
2250They are ignored and should be replaced with a combination of GENERATE,
2251DEPEND and SHARED_SOURCE.
2252EOF
2253
2254    # Massage the result
2255
2256    # If the user configured no-shared, we allow no shared sources
2257    if ($disabled{shared}) {
2258        foreach (keys %{$unified_info{shared_sources}}) {
2259            foreach (keys %{$unified_info{shared_sources}->{$_}}) {
2260                delete $unified_info{sources}->{$_};
2261            }
2262        }
2263        $unified_info{shared_sources} = {};
2264    }
2265
2266    # If we depend on a header file or a perl module, add an inclusion of
2267    # its directory to allow smoothe inclusion
2268    foreach my $dest (keys %{$unified_info{depends}}) {
2269        next if $dest eq "";
2270        foreach my $d (keys %{$unified_info{depends}->{$dest}}) {
2271            next unless $d =~ /\.(h|pm)$/;
2272            my $i = dirname($d);
2273            my $spot =
2274                $d eq "configdata.pm" || defined($unified_info{generate}->{$d})
2275                ? 'build' : 'source';
2276            push @{$unified_info{includes}->{$dest}->{$spot}}, $i
2277                unless grep { $_ eq $i } @{$unified_info{includes}->{$dest}->{$spot}};
2278        }
2279    }
2280
2281    # Trickle down includes placed on libraries, engines and programs to
2282    # their sources (i.e. object files)
2283    foreach my $dest (keys %{$unified_info{engines}},
2284                      keys %{$unified_info{libraries}},
2285                      keys %{$unified_info{programs}}) {
2286        foreach my $k (("source", "build")) {
2287            next unless defined($unified_info{includes}->{$dest}->{$k});
2288            my @incs = reverse @{$unified_info{includes}->{$dest}->{$k}};
2289            foreach my $obj (grep /\.o$/,
2290                             (keys %{$unified_info{sources}->{$dest} // {}},
2291                              keys %{$unified_info{shared_sources}->{$dest} // {}})) {
2292                foreach my $inc (@incs) {
2293                    unshift @{$unified_info{includes}->{$obj}->{$k}}, $inc
2294                        unless grep { $_ eq $inc } @{$unified_info{includes}->{$obj}->{$k}};
2295                }
2296            }
2297        }
2298        delete $unified_info{includes}->{$dest};
2299    }
2300
2301    ### Make unified_info a bit more efficient
2302    # One level structures
2303    foreach (("programs", "libraries", "engines", "scripts", "extra", "overrides")) {
2304        $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
2305    }
2306    # Two level structures
2307    foreach my $l1 (("install", "sources", "shared_sources", "ldadd", "depends")) {
2308        foreach my $l2 (sort keys %{$unified_info{$l1}}) {
2309            $unified_info{$l1}->{$l2} =
2310                [ sort keys %{$unified_info{$l1}->{$l2}} ];
2311        }
2312    }
2313    # Includes
2314    foreach my $dest (sort keys %{$unified_info{includes}}) {
2315        if (defined($unified_info{includes}->{$dest}->{build})) {
2316            my @source_includes = ();
2317            @source_includes = ( @{$unified_info{includes}->{$dest}->{source}} )
2318                if defined($unified_info{includes}->{$dest}->{source});
2319            $unified_info{includes}->{$dest} =
2320                [ @{$unified_info{includes}->{$dest}->{build}} ];
2321            foreach my $inc (@source_includes) {
2322                push @{$unified_info{includes}->{$dest}}, $inc
2323                    unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
2324            }
2325        } else {
2326            $unified_info{includes}->{$dest} =
2327                [ @{$unified_info{includes}->{$dest}->{source}} ];
2328        }
2329    }
2330
2331    # For convenience collect information regarding directories where
2332    # files are generated, those generated files and the end product
2333    # they end up in where applicable.  Then, add build rules for those
2334    # directories
2335    my %loopinfo = ( "lib" => [ @{$unified_info{libraries}} ],
2336                     "dso" => [ @{$unified_info{engines}} ],
2337                     "bin" => [ @{$unified_info{programs}} ],
2338                     "script" => [ @{$unified_info{scripts}} ] );
2339    foreach my $type (keys %loopinfo) {
2340        foreach my $product (@{$loopinfo{$type}}) {
2341            my %dirs = ();
2342            my $pd = dirname($product);
2343
2344            foreach (@{$unified_info{sources}->{$product} // []},
2345                     @{$unified_info{shared_sources}->{$product} // []}) {
2346                my $d = dirname($_);
2347
2348                # We don't want to create targets for source directories
2349                # when building out of source
2350                next if ($config{sourcedir} ne $config{builddir}
2351                             && $d =~ m|^\Q$config{sourcedir}\E|);
2352                # We already have a "test" target, and the current directory
2353                # is just silly to make a target for
2354                next if $d eq "test" || $d eq ".";
2355
2356                $dirs{$d} = 1;
2357                push @{$unified_info{dirinfo}->{$d}->{deps}}, $_
2358                    if $d ne $pd;
2359            }
2360            foreach (keys %dirs) {
2361                push @{$unified_info{dirinfo}->{$_}->{products}->{$type}},
2362                    $product;
2363            }
2364        }
2365    }
2366}
2367
2368# For the schemes that need it, we provide the old *_obj configs
2369# from the *_asm_obj ones
2370foreach (grep /_(asm|aux)_src$/, keys %target) {
2371    my $src = $_;
2372    (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
2373    $target{$obj} = $target{$src};
2374    $target{$obj} =~ s/\.[csS]\b/.o/g; # C and assembler
2375    $target{$obj} =~ s/\.(cc|cpp)\b/_cc.o/g; # C++
2376}
2377
2378# Write down our configuration where it fits #########################
2379
2380print "Creating configdata.pm\n";
2381open(OUT,">configdata.pm") || die "unable to create configdata.pm: $!\n";
2382print OUT <<"EOF";
2383#! $config{HASHBANGPERL}
2384
2385package configdata;
2386
2387use strict;
2388use warnings;
2389
2390use Exporter;
2391#use vars qw(\@ISA \@EXPORT);
2392our \@ISA = qw(Exporter);
2393our \@EXPORT = qw(\%config \%target \%disabled \%withargs \%unified_info \@disablables);
2394
2395EOF
2396print OUT "our %config = (\n";
2397foreach (sort keys %config) {
2398    if (ref($config{$_}) eq "ARRAY") {
2399        print OUT "  ", $_, " => [ ", join(", ",
2400                                           map { quotify("perl", $_) }
2401                                           @{$config{$_}}), " ],\n";
2402    } elsif (ref($config{$_}) eq "HASH") {
2403        print OUT "  ", $_, " => {";
2404        if (scalar keys %{$config{$_}} > 0) {
2405            print OUT "\n";
2406            foreach my $key (sort keys %{$config{$_}}) {
2407                print OUT "      ",
2408                    join(" => ",
2409                         quotify("perl", $key),
2410                         defined $config{$_}->{$key}
2411                             ? quotify("perl", $config{$_}->{$key})
2412                             : "undef");
2413                print OUT ",\n";
2414            }
2415            print OUT "  ";
2416        }
2417        print OUT "},\n";
2418    } else {
2419        print OUT "  ", $_, " => ", quotify("perl", $config{$_}), ",\n"
2420    }
2421}
2422print OUT <<"EOF";
2423);
2424
2425EOF
2426print OUT "our %target = (\n";
2427foreach (sort keys %target) {
2428    if (ref($target{$_}) eq "ARRAY") {
2429        print OUT "  ", $_, " => [ ", join(", ",
2430                                           map { quotify("perl", $_) }
2431                                           @{$target{$_}}), " ],\n";
2432    } else {
2433        print OUT "  ", $_, " => ", quotify("perl", $target{$_}), ",\n"
2434    }
2435}
2436print OUT <<"EOF";
2437);
2438
2439EOF
2440print OUT "our \%available_protocols = (\n";
2441print OUT "  tls => [ ", join(", ", map { quotify("perl", $_) } @tls), " ],\n";
2442print OUT "  dtls => [ ", join(", ", map { quotify("perl", $_) } @dtls), " ],\n";
2443print OUT <<"EOF";
2444);
2445
2446EOF
2447print OUT "our \@disablables = (\n";
2448foreach (@disablables) {
2449    print OUT "  ", quotify("perl", $_), ",\n";
2450}
2451print OUT <<"EOF";
2452);
2453
2454EOF
2455print OUT "our \%disabled = (\n";
2456foreach (sort keys %disabled) {
2457    print OUT "  ", quotify("perl", $_), " => ", quotify("perl", $disabled{$_}), ",\n";
2458}
2459print OUT <<"EOF";
2460);
2461
2462EOF
2463print OUT "our %withargs = (\n";
2464foreach (sort keys %withargs) {
2465    if (ref($withargs{$_}) eq "ARRAY") {
2466        print OUT "  ", $_, " => [ ", join(", ",
2467                                           map { quotify("perl", $_) }
2468                                           @{$withargs{$_}}), " ],\n";
2469    } else {
2470        print OUT "  ", $_, " => ", quotify("perl", $withargs{$_}), ",\n"
2471    }
2472}
2473print OUT <<"EOF";
2474);
2475
2476EOF
2477if ($builder eq "unified") {
2478    my $recurse;
2479    $recurse = sub {
2480        my $indent = shift;
2481        foreach (@_) {
2482            if (ref $_ eq "ARRAY") {
2483                print OUT " "x$indent, "[\n";
2484                foreach (@$_) {
2485                    $recurse->($indent + 4, $_);
2486                }
2487                print OUT " "x$indent, "],\n";
2488            } elsif (ref $_ eq "HASH") {
2489                my %h = %$_;
2490                print OUT " "x$indent, "{\n";
2491                foreach (sort keys %h) {
2492                    if (ref $h{$_} eq "") {
2493                        print OUT " "x($indent + 4), quotify("perl", $_), " => ", quotify("perl", $h{$_}), ",\n";
2494                    } else {
2495                        print OUT " "x($indent + 4), quotify("perl", $_), " =>\n";
2496                        $recurse->($indent + 8, $h{$_});
2497                    }
2498                }
2499                print OUT " "x$indent, "},\n";
2500            } else {
2501                print OUT " "x$indent, quotify("perl", $_), ",\n";
2502            }
2503        }
2504    };
2505    print OUT "our %unified_info = (\n";
2506    foreach (sort keys %unified_info) {
2507        if (ref $unified_info{$_} eq "") {
2508            print OUT " "x4, quotify("perl", $_), " => ", quotify("perl", $unified_info{$_}), ",\n";
2509        } else {
2510            print OUT " "x4, quotify("perl", $_), " =>\n";
2511            $recurse->(8, $unified_info{$_});
2512        }
2513    }
2514    print OUT <<"EOF";
2515);
2516
2517EOF
2518}
2519print OUT
2520    "# The following data is only used when this files is use as a script\n";
2521print OUT "my \@makevars = (\n";
2522foreach (sort keys %user) {
2523    print OUT "    '",$_,"',\n";
2524}
2525print OUT ");\n";
2526print OUT "my \%disabled_info = (\n";
2527foreach my $what (sort keys %disabled_info) {
2528    print OUT "    '$what' => {\n";
2529    foreach my $info (sort keys %{$disabled_info{$what}}) {
2530        if (ref $disabled_info{$what}->{$info} eq 'ARRAY') {
2531            print OUT "        $info => [ ",
2532                join(', ', map { "'$_'" } @{$disabled_info{$what}->{$info}}),
2533                " ],\n";
2534        } else {
2535            print OUT "        $info => '", $disabled_info{$what}->{$info},
2536                "',\n";
2537        }
2538    }
2539    print OUT "    },\n";
2540}
2541print OUT ");\n";
2542print OUT 'my @user_crossable = qw( ', join (' ', @user_crossable), " );\n";
2543print OUT << 'EOF';
2544# If run directly, we can give some answers, and even reconfigure
2545unless (caller) {
2546    use Getopt::Long;
2547    use File::Spec::Functions;
2548    use File::Basename;
2549    use Pod::Usage;
2550
2551    my $here = dirname($0);
2552
2553    my $dump = undef;
2554    my $cmdline = undef;
2555    my $options = undef;
2556    my $target = undef;
2557    my $envvars = undef;
2558    my $makevars = undef;
2559    my $buildparams = undef;
2560    my $reconf = undef;
2561    my $verbose = undef;
2562    my $help = undef;
2563    my $man = undef;
2564    GetOptions('dump|d'                 => \$dump,
2565               'command-line|c'         => \$cmdline,
2566               'options|o'              => \$options,
2567               'target|t'               => \$target,
2568               'environment|e'          => \$envvars,
2569               'make-variables|m'       => \$makevars,
2570               'build-parameters|b'     => \$buildparams,
2571               'reconfigure|reconf|r'   => \$reconf,
2572               'verbose|v'              => \$verbose,
2573               'help'                   => \$help,
2574               'man'                    => \$man)
2575        or die "Errors in command line arguments\n";
2576
2577    unless ($dump || $cmdline || $options || $target || $envvars || $makevars
2578            || $buildparams || $reconf || $verbose || $help || $man) {
2579        print STDERR <<"_____";
2580You must give at least one option.
2581For more information, do '$0 --help'
2582_____
2583        exit(2);
2584    }
2585
2586    if ($help) {
2587        pod2usage(-exitval => 0,
2588                  -verbose => 1);
2589    }
2590    if ($man) {
2591        pod2usage(-exitval => 0,
2592                  -verbose => 2);
2593    }
2594    if ($dump || $cmdline) {
2595        print "\nCommand line (with current working directory = $here):\n\n";
2596        print '    ',join(' ',
2597                          $config{PERL},
2598                          catfile($config{sourcedir}, 'Configure'),
2599                          @{$config{perlargv}}), "\n";
2600        print "\nPerl information:\n\n";
2601        print '    ',$config{perl_cmd},"\n";
2602        print '    ',$config{perl_version},' for ',$config{perl_archname},"\n";
2603    }
2604    if ($dump || $options) {
2605        my $longest = 0;
2606        my $longest2 = 0;
2607        foreach my $what (@disablables) {
2608            $longest = length($what) if $longest < length($what);
2609            $longest2 = length($disabled{$what})
2610                if $disabled{$what} && $longest2 < length($disabled{$what});
2611        }
2612        print "\nEnabled features:\n\n";
2613        foreach my $what (@disablables) {
2614            print "    $what\n" unless $disabled{$what};
2615        }
2616        print "\nDisabled features:\n\n";
2617        foreach my $what (@disablables) {
2618            if ($disabled{$what}) {
2619                print "    $what", ' ' x ($longest - length($what) + 1),
2620                    "[$disabled{$what}]", ' ' x ($longest2 - length($disabled{$what}) + 1);
2621                print $disabled_info{$what}->{macro}
2622                    if $disabled_info{$what}->{macro};
2623                print ' (skip ',
2624                    join(', ', @{$disabled_info{$what}->{skipped}}),
2625                    ')'
2626                    if $disabled_info{$what}->{skipped};
2627                print "\n";
2628            }
2629        }
2630    }
2631    if ($dump || $target) {
2632        print "\nConfig target attributes:\n\n";
2633        foreach (sort keys %target) {
2634            next if $_ =~ m|^_| || $_ eq 'template';
2635            my $quotify = sub {
2636                map { (my $x = $_) =~ s|([\\\$\@"])|\\$1|g; "\"$x\""} @_;
2637            };
2638            print '    ', $_, ' => ';
2639            if (ref($target{$_}) eq "ARRAY") {
2640                print '[ ', join(', ', $quotify->(@{$target{$_}})), " ],\n";
2641            } else {
2642                print $quotify->($target{$_}), ",\n"
2643            }
2644        }
2645    }
2646    if ($dump || $envvars) {
2647        print "\nRecorded environment:\n\n";
2648        foreach (sort keys %{$config{perlenv}}) {
2649            print '    ',$_,' = ',($config{perlenv}->{$_} || ''),"\n";
2650        }
2651    }
2652    if ($dump || $makevars) {
2653        print "\nMakevars:\n\n";
2654        foreach my $var (@makevars) {
2655            my $prefix = '';
2656            $prefix = $config{CROSS_COMPILE}
2657                if grep { $var eq $_ } @user_crossable;
2658            $prefix //= '';
2659            print '    ',$var,' ' x (16 - length $var),'= ',
2660                (ref $config{$var} eq 'ARRAY'
2661                 ? join(' ', @{$config{$var}})
2662                 : $prefix.$config{$var}),
2663                "\n"
2664                if defined $config{$var};
2665        }
2666
2667        my @buildfile = ($config{builddir}, $config{build_file});
2668        unshift @buildfile, $here
2669            unless file_name_is_absolute($config{builddir});
2670        my $buildfile = canonpath(catdir(@buildfile));
2671        print <<"_____";
2672
2673NOTE: These variables only represent the configuration view.  The build file
2674template may have processed these variables further, please have a look at the
2675build file for more exact data:
2676    $buildfile
2677_____
2678    }
2679    if ($dump || $buildparams) {
2680        my @buildfile = ($config{builddir}, $config{build_file});
2681        unshift @buildfile, $here
2682            unless file_name_is_absolute($config{builddir});
2683        print "\nbuild file:\n\n";
2684        print "    ", canonpath(catfile(@buildfile)),"\n";
2685
2686        print "\nbuild file templates:\n\n";
2687        foreach (@{$config{build_file_templates}}) {
2688            my @tmpl = ($_);
2689            unshift @tmpl, $here
2690                unless file_name_is_absolute($config{sourcedir});
2691            print '    ',canonpath(catfile(@tmpl)),"\n";
2692        }
2693    }
2694    if ($reconf) {
2695        if ($verbose) {
2696            print 'Reconfiguring with: ', join(' ',@{$config{perlargv}}), "\n";
2697            foreach (sort keys %{$config{perlenv}}) {
2698                print '    ',$_,' = ',($config{perlenv}->{$_} || ""),"\n";
2699            }
2700        }
2701
2702        chdir $here;
2703        exec $^X,catfile($config{sourcedir}, 'Configure'),'reconf';
2704    }
2705}
2706
27071;
2708
2709__END__
2710
2711=head1 NAME
2712
2713configdata.pm - configuration data for OpenSSL builds
2714
2715=head1 SYNOPSIS
2716
2717Interactive:
2718
2719  perl configdata.pm [options]
2720
2721As data bank module:
2722
2723  use configdata;
2724
2725=head1 DESCRIPTION
2726
2727This module can be used in two modes, interactively and as a module containing
2728all the data recorded by OpenSSL's Configure script.
2729
2730When used interactively, simply run it as any perl script, with at least one
2731option, and you will get the information you ask for.  See L</OPTIONS> below.
2732
2733When loaded as a module, you get a few databanks with useful information to
2734perform build related tasks.  The databanks are:
2735
2736    %config             Configured things.
2737    %target             The OpenSSL config target with all inheritances
2738                        resolved.
2739    %disabled           The features that are disabled.
2740    @disablables        The list of features that can be disabled.
2741    %withargs           All data given through --with-THING options.
2742    %unified_info       All information that was computed from the build.info
2743                        files.
2744
2745=head1 OPTIONS
2746
2747=over 4
2748
2749=item B<--help>
2750
2751Print a brief help message and exit.
2752
2753=item B<--man>
2754
2755Print the manual page and exit.
2756
2757=item B<--dump> | B<-d>
2758
2759Print all relevant configuration data.  This is equivalent to B<--command-line>
2760B<--options> B<--target> B<--environment> B<--make-variables>
2761B<--build-parameters>.
2762
2763=item B<--command-line> | B<-c>
2764
2765Print the current configuration command line.
2766
2767=item B<--options> | B<-o>
2768
2769Print the features, both enabled and disabled, and display defined macro and
2770skipped directories where applicable.
2771
2772=item B<--target> | B<-t>
2773
2774Print the config attributes for this config target.
2775
2776=item B<--environment> | B<-e>
2777
2778Print the environment variables and their values at the time of configuration.
2779
2780=item B<--make-variables> | B<-m>
2781
2782Print the main make variables generated in the current configuration
2783
2784=item B<--build-parameters> | B<-b>
2785
2786Print the build parameters, i.e. build file and build file templates.
2787
2788=item B<--reconfigure> | B<--reconf> | B<-r>
2789
2790Redo the configuration.
2791
2792=item B<--verbose> | B<-v>
2793
2794Verbose output.
2795
2796=back
2797
2798=cut
2799
2800EOF
2801close(OUT);
2802if ($builder_platform eq 'unix') {
2803    my $mode = (0755 & ~umask);
2804    chmod $mode, 'configdata.pm'
2805        or warn sprintf("WARNING: Couldn't change mode for 'configdata.pm' to 0%03o: %s\n",$mode,$!);
2806}
2807
2808my %builders = (
2809    unified => sub {
2810        print 'Creating ',$target{build_file},"\n";
2811        run_dofile(catfile($blddir, $target{build_file}),
2812                   @{$config{build_file_templates}});
2813    },
2814    );
2815
2816$builders{$builder}->($builder_platform, @builder_opts);
2817
2818$SIG{__DIE__} = $orig_death_handler;
2819
2820print <<"EOF" if ($disabled{threads} eq "unavailable");
2821
2822The library could not be configured for supporting multi-threaded
2823applications as the compiler options required on this system are not known.
2824See file INSTALL for details if you need multi-threading.
2825EOF
2826
2827print <<"EOF" if ($no_shared_warn);
2828
2829The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
2830platform, so we will pretend you gave the option 'no-pic', which also disables
2831'shared' and 'dynamic-engine'.  If you know how to implement shared libraries
2832or position independent code, please let us know (but please first make sure
2833you have tried with a current version of OpenSSL).
2834EOF
2835
2836print <<"EOF";
2837
2838**********************************************************************
2839***                                                                ***
2840***   OpenSSL has been successfully configured                     ***
2841***                                                                ***
2842***   If you encounter a problem while building, please open an    ***
2843***   issue on GitHub <https://github.com/openssl/openssl/issues>  ***
2844***   and include the output from the following command:           ***
2845***                                                                ***
2846***       perl configdata.pm --dump                                ***
2847***                                                                ***
2848***   (If you are new to OpenSSL, you might want to consult the    ***
2849***   'Troubleshooting' section in the INSTALL file first)         ***
2850***                                                                ***
2851**********************************************************************
2852EOF
2853
2854exit(0);
2855
2856######################################################################
2857#
2858# Helpers and utility functions
2859#
2860
2861# Death handler, to print a helpful message in case of failure #######
2862#
2863sub death_handler {
2864    die @_ if $^S;              # To prevent the added message in eval blocks
2865    my $build_file = $target{build_file} // "build file";
2866    my @message = ( <<"_____", @_ );
2867
2868Failure!  $build_file wasn't produced.
2869Please read INSTALL and associated NOTES files.  You may also have to look over
2870your available compiler tool chain or change your configuration.
2871
2872_____
2873
2874    # Dying is terminal, so it's ok to reset the signal handler here.
2875    $SIG{__DIE__} = $orig_death_handler;
2876    die @message;
2877}
2878
2879# Configuration file reading #########################################
2880
2881# Note: All of the helper functions are for lazy evaluation.  They all
2882# return a CODE ref, which will return the intended value when evaluated.
2883# Thus, whenever there's mention of a returned value, it's about that
2884# intended value.
2885
2886# Helper function to implement conditional inheritance depending on the
2887# value of $disabled{asm}.  Used in inherit_from values as follows:
2888#
2889#      inherit_from => [ "template", asm("asm_tmpl") ]
2890#
2891sub asm {
2892    my @x = @_;
2893    sub {
2894        $disabled{asm} ? () : @x;
2895    }
2896}
2897
2898# Helper function to implement conditional value variants, with a default
2899# plus additional values based on the value of $config{build_type}.
2900# Arguments are given in hash table form:
2901#
2902#       picker(default => "Basic string: ",
2903#              debug   => "debug",
2904#              release => "release")
2905#
2906# When configuring with --debug, the resulting string will be
2907# "Basic string: debug", and when not, it will be "Basic string: release"
2908#
2909# This can be used to create variants of sets of flags according to the
2910# build type:
2911#
2912#       cflags => picker(default => "-Wall",
2913#                        debug   => "-g -O0",
2914#                        release => "-O3")
2915#
2916sub picker {
2917    my %opts = @_;
2918    return sub { add($opts{default} || (),
2919                     $opts{$config{build_type}} || ())->(); }
2920}
2921
2922# Helper function to combine several values of different types into one.
2923# This is useful if you want to combine a string with the result of a
2924# lazy function, such as:
2925#
2926#       cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
2927#
2928sub combine {
2929    my @stuff = @_;
2930    return sub { add(@stuff)->(); }
2931}
2932
2933# Helper function to implement conditional values depending on the value
2934# of $disabled{threads}.  Can be used as follows:
2935#
2936#       cflags => combine("-Wall", threads("-pthread"))
2937#
2938sub threads {
2939    my @flags = @_;
2940    return sub { add($disabled{threads} ? () : @flags)->(); }
2941}
2942
2943sub shared {
2944    my @flags = @_;
2945    return sub { add($disabled{shared} ? () : @flags)->(); }
2946}
2947
2948our $add_called = 0;
2949# Helper function to implement adding values to already existing configuration
2950# values.  It handles elements that are ARRAYs, CODEs and scalars
2951sub _add {
2952    my $separator = shift;
2953
2954    # If there's any ARRAY in the collection of values OR the separator
2955    # is undef, we will return an ARRAY of combined values, otherwise a
2956    # string of joined values with $separator as the separator.
2957    my $found_array = !defined($separator);
2958
2959    my @values =
2960        map {
2961            my $res = $_;
2962            while (ref($res) eq "CODE") {
2963                $res = $res->();
2964            }
2965            if (defined($res)) {
2966                if (ref($res) eq "ARRAY") {
2967                    $found_array = 1;
2968                    @$res;
2969                } else {
2970                    $res;
2971                }
2972            } else {
2973                ();
2974            }
2975    } (@_);
2976
2977    $add_called = 1;
2978
2979    if ($found_array) {
2980        [ @values ];
2981    } else {
2982        join($separator, grep { defined($_) && $_ ne "" } @values);
2983    }
2984}
2985sub add_before {
2986    my $separator = " ";
2987    if (ref($_[$#_]) eq "HASH") {
2988        my $opts = pop;
2989        $separator = $opts->{separator};
2990    }
2991    my @x = @_;
2992    sub { _add($separator, @x, @_) };
2993}
2994sub add {
2995    my $separator = " ";
2996    if (ref($_[$#_]) eq "HASH") {
2997        my $opts = pop;
2998        $separator = $opts->{separator};
2999    }
3000    my @x = @_;
3001    sub { _add($separator, @_, @x) };
3002}
3003
3004sub read_eval_file {
3005    my $fname = shift;
3006    my $content;
3007    my @result;
3008
3009    open F, "< $fname" or die "Can't open '$fname': $!\n";
3010    {
3011        undef local $/;
3012        $content = <F>;
3013    }
3014    close F;
3015    {
3016        local $@;
3017
3018        @result = ( eval $content );
3019        warn $@ if $@;
3020    }
3021    return wantarray ? @result : $result[0];
3022}
3023
3024# configuration reader, evaluates the input file as a perl script and expects
3025# it to fill %targets with target configurations.  Those are then added to
3026# %table.
3027sub read_config {
3028    my $fname = shift;
3029    my %targets;
3030
3031    {
3032        # Protect certain tables from tampering
3033        local %table = ();
3034
3035        %targets = read_eval_file($fname);
3036    }
3037    my %preexisting = ();
3038    foreach (sort keys %targets) {
3039        $preexisting{$_} = 1 if $table{$_};
3040    }
3041    die <<"EOF",
3042The following config targets from $fname
3043shadow pre-existing config targets with the same name:
3044EOF
3045        map { "  $_\n" } sort keys %preexisting
3046        if %preexisting;
3047
3048
3049    # For each target, check that it's configured with a hash table.
3050    foreach (keys %targets) {
3051        if (ref($targets{$_}) ne "HASH") {
3052            if (ref($targets{$_}) eq "") {
3053                warn "Deprecated target configuration for $_, ignoring...\n";
3054            } else {
3055                warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
3056            }
3057            delete $targets{$_};
3058        } else {
3059            $targets{$_}->{_conf_fname_int} = add([ $fname ]);
3060        }
3061    }
3062
3063    %table = (%table, %targets);
3064
3065}
3066
3067# configuration resolver.  Will only resolve all the lazy evaluation
3068# codeblocks for the chosen target and all those it inherits from,
3069# recursively
3070sub resolve_config {
3071    my $target = shift;
3072    my @breadcrumbs = @_;
3073
3074#    my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
3075
3076    if (grep { $_ eq $target } @breadcrumbs) {
3077        die "inherit_from loop!  target backtrace:\n  "
3078            ,$target,"\n  ",join("\n  ", @breadcrumbs),"\n";
3079    }
3080
3081    if (!defined($table{$target})) {
3082        warn "Warning! target $target doesn't exist!\n";
3083        return ();
3084    }
3085    # Recurse through all inheritances.  They will be resolved on the
3086    # fly, so when this operation is done, they will all just be a
3087    # bunch of attributes with string values.
3088    # What we get here, though, are keys with references to lists of
3089    # the combined values of them all.  We will deal with lists after
3090    # this stage is done.
3091    my %combined_inheritance = ();
3092    if ($table{$target}->{inherit_from}) {
3093        my @inherit_from =
3094            map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
3095        foreach (@inherit_from) {
3096            my %inherited_config = resolve_config($_, $target, @breadcrumbs);
3097
3098            # 'template' is a marker that's considered private to
3099            # the config that had it.
3100            delete $inherited_config{template};
3101
3102            foreach (keys %inherited_config) {
3103                if (!$combined_inheritance{$_}) {
3104                    $combined_inheritance{$_} = [];
3105                }
3106                push @{$combined_inheritance{$_}}, $inherited_config{$_};
3107            }
3108        }
3109    }
3110
3111    # We won't need inherit_from in this target any more, since we've
3112    # resolved all the inheritances that lead to this
3113    delete $table{$target}->{inherit_from};
3114
3115    # Now is the time to deal with those lists.  Here's the place to
3116    # decide what shall be done with those lists, all based on the
3117    # values of the target we're currently dealing with.
3118    # - If a value is a coderef, it will be executed with the list of
3119    #   inherited values as arguments.
3120    # - If the corresponding key doesn't have a value at all or is the
3121    #   empty string, the inherited value list will be run through the
3122    #   default combiner (below), and the result becomes this target's
3123    #   value.
3124    # - Otherwise, this target's value is assumed to be a string that
3125    #   will simply override the inherited list of values.
3126    my $default_combiner = add();
3127
3128    my %all_keys =
3129        map { $_ => 1 } (keys %combined_inheritance,
3130                         keys %{$table{$target}});
3131
3132    sub process_values {
3133        my $object    = shift;
3134        my $inherited = shift;  # Always a [ list ]
3135        my $target    = shift;
3136        my $entry     = shift;
3137
3138        $add_called = 0;
3139
3140        while(ref($object) eq "CODE") {
3141            $object = $object->(@$inherited);
3142        }
3143        if (!defined($object)) {
3144            return ();
3145        }
3146        elsif (ref($object) eq "ARRAY") {
3147            local $add_called;  # To make sure recursive calls don't affect it
3148            return [ map { process_values($_, $inherited, $target, $entry) }
3149                     @$object ];
3150        } elsif (ref($object) eq "") {
3151            return $object;
3152        } else {
3153            die "cannot handle reference type ",ref($object)
3154                ," found in target ",$target," -> ",$entry,"\n";
3155        }
3156    }
3157
3158    foreach (sort keys %all_keys) {
3159        my $previous = $combined_inheritance{$_};
3160
3161        # Current target doesn't have a value for the current key?
3162        # Assign it the default combiner, the rest of this loop body
3163        # will handle it just like any other coderef.
3164        if (!exists $table{$target}->{$_}) {
3165            $table{$target}->{$_} = $default_combiner;
3166        }
3167
3168        $table{$target}->{$_} = process_values($table{$target}->{$_},
3169                                               $combined_inheritance{$_},
3170                                               $target, $_);
3171        unless(defined($table{$target}->{$_})) {
3172            delete $table{$target}->{$_};
3173        }
3174#        if ($extra_checks &&
3175#            $previous && !($add_called ||  $previous ~~ $table{$target}->{$_})) {
3176#            warn "$_ got replaced in $target\n";
3177#        }
3178    }
3179
3180    # Finally done, return the result.
3181    return %{$table{$target}};
3182}
3183
3184sub usage
3185        {
3186        print STDERR $usage;
3187        print STDERR "\npick os/compiler from:\n";
3188        my $j=0;
3189        my $i;
3190        my $k=0;
3191        foreach $i (sort keys %table)
3192                {
3193                next if $table{$i}->{template};
3194                next if $i =~ /^debug/;
3195                $k += length($i) + 1;
3196                if ($k > 78)
3197                        {
3198                        print STDERR "\n";
3199                        $k=length($i);
3200                        }
3201                print STDERR $i . " ";
3202                }
3203        foreach $i (sort keys %table)
3204                {
3205                next if $table{$i}->{template};
3206                next if $i !~ /^debug/;
3207                $k += length($i) + 1;
3208                if ($k > 78)
3209                        {
3210                        print STDERR "\n";
3211                        $k=length($i);
3212                        }
3213                print STDERR $i . " ";
3214                }
3215        print STDERR "\n\nNOTE: If in doubt, on Unix-ish systems use './config'.\n";
3216        exit(1);
3217        }
3218
3219sub run_dofile
3220{
3221    my $out = shift;
3222    my @templates = @_;
3223
3224    unlink $out || warn "Can't remove $out, $!"
3225        if -f $out;
3226    foreach (@templates) {
3227        die "Can't open $_, $!" unless -f $_;
3228    }
3229    my $perlcmd = (quotify("maybeshell", $config{PERL}))[0];
3230    my $cmd = "$perlcmd \"-I.\" \"-Mconfigdata\" \"$dofile\" -o\"Configure\" \"".join("\" \"",@templates)."\" > \"$out.new\"";
3231    #print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
3232    system($cmd);
3233    exit 1 if $? != 0;
3234    rename("$out.new", $out) || die "Can't rename $out.new, $!";
3235}
3236
3237sub compiler_predefined {
3238    state %predefined;
3239    my $cc = shift;
3240
3241    return () if $^O eq 'VMS';
3242
3243    die 'compiler_predefined called without a compiler command'
3244        unless $cc;
3245
3246    if (! $predefined{$cc}) {
3247
3248        $predefined{$cc} = {};
3249
3250        # collect compiler pre-defines from gcc or gcc-alike...
3251        open(PIPE, "$cc -dM -E -x c /dev/null 2>&1 |");
3252        while (my $l = <PIPE>) {
3253            $l =~ m/^#define\s+(\w+(?:\(\w+\))?)(?:\s+(.+))?/ or last;
3254            $predefined{$cc}->{$1} = $2 // '';
3255        }
3256        close(PIPE);
3257    }
3258
3259    return %{$predefined{$cc}};
3260}
3261
3262sub which
3263{
3264    my ($name)=@_;
3265
3266    if (eval { require IPC::Cmd; 1; }) {
3267        IPC::Cmd->import();
3268        return scalar IPC::Cmd::can_run($name);
3269    } else {
3270        # if there is $directories component in splitpath,
3271        # then it's not something to test with $PATH...
3272        return $name if (File::Spec->splitpath($name))[1];
3273
3274        foreach (File::Spec->path()) {
3275            my $fullpath = catfile($_, "$name$target{exe_extension}");
3276            if (-f $fullpath and -x $fullpath) {
3277                return $fullpath;
3278            }
3279        }
3280    }
3281}
3282
3283sub env
3284{
3285    my $name = shift;
3286    my %opts = @_;
3287
3288    unless ($opts{cacheonly}) {
3289        # Note that if $ENV{$name} doesn't exist or is undefined,
3290        # $config{perlenv}->{$name} will be created with the value
3291        # undef.  This is intentional.
3292
3293        $config{perlenv}->{$name} = $ENV{$name}
3294            if ! exists $config{perlenv}->{$name};
3295    }
3296    return $config{perlenv}->{$name};
3297}
3298
3299# Configuration printer ##############################################
3300
3301sub print_table_entry
3302{
3303    local $now_printing = shift;
3304    my %target = resolve_config($now_printing);
3305    my $type = shift;
3306
3307    # Don't print the templates
3308    return if $target{template};
3309
3310    my @sequence = (
3311        "sys_id",
3312        "cpp",
3313        "cppflags",
3314        "defines",
3315        "includes",
3316        "cc",
3317        "cflags",
3318        "unistd",
3319        "ld",
3320        "lflags",
3321        "loutflag",
3322        "ex_libs",
3323        "bn_ops",
3324        "apps_aux_src",
3325        "cpuid_asm_src",
3326        "uplink_aux_src",
3327        "bn_asm_src",
3328        "ec_asm_src",
3329        "des_asm_src",
3330        "aes_asm_src",
3331        "bf_asm_src",
3332        "md5_asm_src",
3333        "cast_asm_src",
3334        "sha1_asm_src",
3335        "rc4_asm_src",
3336        "rmd160_asm_src",
3337        "rc5_asm_src",
3338        "wp_asm_src",
3339        "cmll_asm_src",
3340        "modes_asm_src",
3341        "padlock_asm_src",
3342        "chacha_asm_src",
3343        "poly1035_asm_src",
3344        "thread_scheme",
3345        "perlasm_scheme",
3346        "dso_scheme",
3347        "shared_target",
3348        "shared_cflag",
3349        "shared_defines",
3350        "shared_ldflag",
3351        "shared_rcflag",
3352        "shared_extension",
3353        "dso_extension",
3354        "obj_extension",
3355        "exe_extension",
3356        "ranlib",
3357        "ar",
3358        "arflags",
3359        "aroutflag",
3360        "rc",
3361        "rcflags",
3362        "rcoutflag",
3363        "mt",
3364        "mtflags",
3365        "mtinflag",
3366        "mtoutflag",
3367        "multilib",
3368        "build_scheme",
3369        );
3370
3371    if ($type eq "TABLE") {
3372        print "\n";
3373        print "*** $now_printing\n";
3374        foreach (@sequence) {
3375            if (ref($target{$_}) eq "ARRAY") {
3376                printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
3377            } else {
3378                printf "\$%-12s = %s\n", $_, $target{$_};
3379            }
3380        }
3381    } elsif ($type eq "HASH") {
3382        my $largest =
3383            length((sort { length($a) <=> length($b) } @sequence)[-1]);
3384        print "    '$now_printing' => {\n";
3385        foreach (@sequence) {
3386            if ($target{$_}) {
3387                if (ref($target{$_}) eq "ARRAY") {
3388                    print "      '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
3389                } else {
3390                    print "      '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
3391                }
3392            }
3393        }
3394        print "    },\n";
3395    }
3396}
3397
3398# Utility routines ###################################################
3399
3400# On VMS, if the given file is a logical name, File::Spec::Functions
3401# will consider it an absolute path.  There are cases when we want a
3402# purely syntactic check without checking the environment.
3403sub isabsolute {
3404    my $file = shift;
3405
3406    # On non-platforms, we just use file_name_is_absolute().
3407    return file_name_is_absolute($file) unless $^O eq "VMS";
3408
3409    # If the file spec includes a device or a directory spec,
3410    # file_name_is_absolute() is perfectly safe.
3411    return file_name_is_absolute($file) if $file =~ m|[:\[]|;
3412
3413    # Here, we know the given file spec isn't absolute
3414    return 0;
3415}
3416
3417# Makes a directory absolute and cleans out /../ in paths like foo/../bar
3418# On some platforms, this uses rel2abs(), while on others, realpath() is used.
3419# realpath() requires that at least all path components except the last is an
3420# existing directory.  On VMS, the last component of the directory spec must
3421# exist.
3422sub absolutedir {
3423    my $dir = shift;
3424
3425    # realpath() is quite buggy on VMS.  It uses LIB$FID_TO_NAME, which
3426    # will return the volume name for the device, no matter what.  Also,
3427    # it will return an incorrect directory spec if the argument is a
3428    # directory that doesn't exist.
3429    if ($^O eq "VMS") {
3430        return rel2abs($dir);
3431    }
3432
3433    # We use realpath() on Unix, since no other will properly clean out
3434    # a directory spec.
3435    use Cwd qw/realpath/;
3436
3437    return realpath($dir);
3438}
3439
3440# Check if all paths are one and the same, using stat.  They must both exist
3441# We need this for the cases when File::Spec doesn't detect case insensitivity
3442# (File::Spec::Unix assumes case sensitivity)
3443sub samedir {
3444    die "samedir expects two arguments\n" unless scalar @_ == 2;
3445
3446    my @stat0 = stat($_[0]);    # First argument
3447    my @stat1 = stat($_[1]);    # Second argument
3448
3449    die "Couldn't stat $_[0]" unless @stat0;
3450    die "Couldn't stat $_[1]" unless @stat1;
3451
3452    # Compare device number
3453    return 0 unless ($stat0[0] == $stat1[0]);
3454    # Compare "inode".  The perl manual recommends comparing as
3455    # string rather than as number.
3456    return 0 unless ($stat0[1] eq $stat1[1]);
3457
3458    return 1;                   # All the same
3459}
3460
3461sub quotify {
3462    my %processors = (
3463        perl    => sub { my $x = shift;
3464                         $x =~ s/([\\\$\@"])/\\$1/g;
3465                         return '"'.$x.'"'; },
3466        maybeshell => sub { my $x = shift;
3467                            (my $y = $x) =~ s/([\\\"])/\\$1/g;
3468                            if ($x ne $y || $x =~ m|\s|) {
3469                                return '"'.$y.'"';
3470                            } else {
3471                                return $x;
3472                            }
3473                        },
3474        );
3475    my $for = shift;
3476    my $processor =
3477        defined($processors{$for}) ? $processors{$for} : sub { shift; };
3478
3479    return map { $processor->($_); } @_;
3480}
3481
3482# collect_from_file($filename, $line_concat_cond_re, $line_concat)
3483# $filename is a file name to read from
3484# $line_concat_cond_re is a regexp detecting a line continuation ending
3485# $line_concat is a CODEref that takes care of concatenating two lines
3486sub collect_from_file {
3487    my $filename = shift;
3488    my $line_concat_cond_re = shift;
3489    my $line_concat = shift;
3490
3491    open my $fh, $filename || die "unable to read $filename: $!\n";
3492    return sub {
3493        my $saved_line = "";
3494        $_ = "";
3495        while (<$fh>) {
3496            s|\R$||;
3497            if (defined $line_concat) {
3498                $_ = $line_concat->($saved_line, $_);
3499                $saved_line = "";
3500            }
3501            if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3502                $saved_line = $_;
3503                next;
3504            }
3505            return $_;
3506        }
3507        die "$filename ending with continuation line\n" if $_;
3508        close $fh;
3509        return undef;
3510    }
3511}
3512
3513# collect_from_array($array, $line_concat_cond_re, $line_concat)
3514# $array is an ARRAYref of lines
3515# $line_concat_cond_re is a regexp detecting a line continuation ending
3516# $line_concat is a CODEref that takes care of concatenating two lines
3517sub collect_from_array {
3518    my $array = shift;
3519    my $line_concat_cond_re = shift;
3520    my $line_concat = shift;
3521    my @array = (@$array);
3522
3523    return sub {
3524        my $saved_line = "";
3525        $_ = "";
3526        while (defined($_ = shift @array)) {
3527            s|\R$||;
3528            if (defined $line_concat) {
3529                $_ = $line_concat->($saved_line, $_);
3530                $saved_line = "";
3531            }
3532            if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3533                $saved_line = $_;
3534                next;
3535            }
3536            return $_;
3537        }
3538        die "input text ending with continuation line\n" if $_;
3539        return undef;
3540    }
3541}
3542
3543# collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
3544# $lineiterator is a CODEref that delivers one line at a time.
3545# All following arguments are regex/CODEref pairs, where the regexp detects a
3546# line and the CODEref does something with the result of the regexp.
3547sub collect_information {
3548    my $lineiterator = shift;
3549    my %collectors = @_;
3550
3551    while(defined($_ = $lineiterator->())) {
3552        s|\R$||;
3553        my $found = 0;
3554        if ($collectors{"BEFORE"}) {
3555            $collectors{"BEFORE"}->($_);
3556        }
3557        foreach my $re (keys %collectors) {
3558            if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
3559                $collectors{$re}->($lineiterator);
3560                $found = 1;
3561            };
3562        }
3563        if ($collectors{"OTHERWISE"}) {
3564            $collectors{"OTHERWISE"}->($lineiterator, $_)
3565                unless $found || !defined $collectors{"OTHERWISE"};
3566        }
3567        if ($collectors{"AFTER"}) {
3568            $collectors{"AFTER"}->($_);
3569        }
3570    }
3571}
3572
3573# tokenize($line)
3574# $line is a line of text to split up into tokens
3575# returns a list of tokens
3576#
3577# Tokens are divided by spaces.  If the tokens include spaces, they
3578# have to be quoted with single or double quotes.  Double quotes
3579# inside a double quoted token must be escaped.  Escaping is done
3580# with backslash.
3581# Basically, the same quoting rules apply for " and ' as in any
3582# Unix shell.
3583sub tokenize {
3584    my $line = my $debug_line = shift;
3585    my @result = ();
3586
3587    while ($line =~ s|^\s+||, $line ne "") {
3588        my $token = "";
3589        while ($line ne "" && $line !~ m|^\s|) {
3590            if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
3591                $token .= $1;
3592                $line = $';
3593            } elsif ($line =~ m/^'([^']*)'/) {
3594                $token .= $1;
3595                $line = $';
3596            } elsif ($line =~ m/^(\S+)/) {
3597                $token .= $1;
3598                $line = $';
3599            }
3600        }
3601        push @result, $token;
3602    }
3603
3604    if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
3605        print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
3606        print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
3607    }
3608    return @result;
3609}
3610