Configure

   1 #! /usr/bin/env perl
   2 # -*- mode: perl; -*-
   3 # Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
   4 #
   5 # Licensed under the Apache License 2.0 (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
  12 use 5.10.0;
  13 use strict;
  14 use Config;
  15 use FindBin;
  16 use lib "$FindBin::Bin/util/perl";
  17 use File::Basename;
  18 use File::Spec::Functions qw/:DEFAULT abs2rel rel2abs splitdir/;
  19 use File::Path qw/mkpath/;
  20 use OpenSSL::Glob;
  21
  22 # see INSTALL for instructions.
  23
  24 my $orig_death_handler = $SIG{__DIE__};
  25 $SIG{__DIE__} = \&death_handler;
  26
  27 my $usage="Usage: Configure [no-<cipher> ...] [enable-<cipher> ...] [-Dxxx] [-lxxx] [-Lxxx] [-fxxx] [-Kxxx] [no-hw-xxx|no-hw] [[no-]threads] [[no-]shared] [[no-]zlib|zlib-dynamic] [no-asm] [no-dso] [no-egd] [sctp] [386] [--prefix=DIR] [--openssldir=OPENSSLDIR] [--with-xxx[=vvv]] [--config=FILE] os/compiler[:flags]\n";
  28
  29 # Options:
  30 #
  31 # --config      add the given configuration file, which will be read after
  32 #               any "Configurations*" files that are found in the same
  33 #               directory as this script.
  34 # --prefix      prefix for the OpenSSL installation, which includes the
  35 #               directories bin, lib, include, share/man, share/doc/openssl
  36 #               This becomes the value of INSTALLTOP in Makefile
  37 #               (Default: /usr/local)
  38 # --openssldir  OpenSSL data area, such as openssl.cnf, certificates and keys.
  39 #               If it's a relative directory, it will be added on the directory
  40 #               given with --prefix.
  41 #               This becomes the value of OPENSSLDIR in Makefile and in C.
  42 #               (Default: PREFIX/ssl)
  43 #
  44 # --cross-compile-prefix Add specified prefix to binutils components.
  45 #
  46 # --api         One of 0.9.8, 1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.1.1, or 3.0.0 / 3.
  47 #               Do not compile support for interfaces deprecated as of the
  48 #               specified OpenSSL version.
  49 #
  50 # no-hw-xxx     do not compile support for specific crypto hardware.
  51 #               Generic OpenSSL-style methods relating to this support
  52 #               are always compiled but return NULL if the hardware
  53 #               support isn't compiled.
  54 # no-hw         do not compile support for any crypto hardware.
  55 # [no-]threads  [don't] try to create a library that is suitable for
  56 #               multithreaded applications (default is "threads" if we
  57 #               know how to do it)
  58 # [no-]shared   [don't] try to create shared libraries when supported.
  59 # [no-]pic      [don't] try to build position independent code when supported.
  60 #               If disabled, it also disables shared and dynamic-engine.
  61 # no-asm        do not use assembler
  62 # no-dso        do not compile in any native shared-library methods. This
  63 #               will ensure that all methods just return NULL.
  64 # no-egd        do not compile support for the entropy-gathering daemon APIs
  65 # [no-]zlib     [don't] compile support for zlib compression.
  66 # zlib-dynamic  Like "zlib", but the zlib library is expected to be a shared
  67 #               library and will be loaded in run-time by the OpenSSL library.
  68 # sctp          include SCTP support
  69 # enable-weak-ssl-ciphers
  70 #               Enable weak ciphers that are disabled by default.
  71 # 386           generate 80386 code in assembly modules
  72 # no-sse2       disables IA-32 SSE2 code in assembly modules, the above
  73 #               mentioned '386' option implies this one
  74 # no-<cipher>   build without specified algorithm (rsa, idea, rc5, ...)
  75 # -<xxx> +<xxx> compiler options are passed through
  76 # -static       while -static is also a pass-through compiler option (and
  77 #               as such is limited to environments where it's actually
  78 #               meaningful), it triggers a number configuration options,
  79 #               namely no-dso, no-pic, no-shared and no-threads. It is
  80 #               argued that the only reason to produce statically linked
  81 #               binaries (and in context it means executables linked with
  82 #               -static flag, and not just executables linked with static
  83 #               libcrypto.a) is to eliminate dependency on specific run-time,
  84 #               a.k.a. libc version. The mentioned config options are meant
  85 #               to achieve just that. Unfortunately on Linux it's impossible
  86 #               to eliminate the dependency completely for openssl executable
  87 #               because of getaddrinfo and gethostbyname calls, which can
  88 #               invoke dynamically loadable library facility anyway to meet
  89 #               the lookup requests. For this reason on Linux statically
  90 #               linked openssl executable has rather debugging value than
  91 #               production quality.
  92 #
  93 # DEBUG_SAFESTACK use type-safe stacks to enforce type-safety on stack items
  94 #               provided to stack calls. Generates unique stack functions for
  95 #               each possible stack type.
  96 # BN_LLONG      use the type 'long long' in crypto/bn/bn.h
  97 # RC4_CHAR      use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
  98 # Following are set automatically by this script
  99 #
 100 # MD5_ASM       use some extra md5 assembler,
 101 # SHA1_ASM      use some extra sha1 assembler, must define L_ENDIAN for x86
 102 # RMD160_ASM    use some extra ripemd160 assembler,
 103 # SHA256_ASM    sha256_block is implemented in assembler
 104 # SHA512_ASM    sha512_block is implemented in assembler
 105 # AES_ASM       AES_[en|de]crypt is implemented in assembler
 106
 107 # Minimum warning options... any contributions to OpenSSL should at least get
 108 # past these.
 109
 110 # DEBUG_UNUSED enables __owur (warn unused result) checks.
 111 # -DPEDANTIC complements -pedantic and is meant to mask code that
 112 # is not strictly standard-compliant and/or implementation-specific,
 113 # e.g. inline assembly, disregards to alignment requirements, such
 114 # that -pedantic would complain about. Incidentally -DPEDANTIC has
 115 # to be used even in sanitized builds, because sanitizer too is
 116 # supposed to and does take notice of non-standard behaviour. Then
 117 # -pedantic with pre-C9x compiler would also complain about 'long
 118 # long' not being supported. As 64-bit algorithms are common now,
 119 # it grew impossible to resolve this without sizeable additional
 120 # code, so we just tell compiler to be pedantic about everything
 121 # but 'long long' type.
 122
 123 my $gcc_devteam_warn = "-DDEBUG_UNUSED"
 124         . " -DPEDANTIC -pedantic -Wno-long-long"
 125         . " -Wall"
 126         . " -Wextra"
 127         . " -Wno-unused-parameter"
 128         . " -Wno-missing-field-initializers"
 129         . " -Wswitch"
 130         . " -Wsign-compare"
 131         . " -Wmissing-prototypes"
 132         . " -Wstrict-prototypes"
 133         . " -Wshadow"
 134         . " -Wformat"
 135         . " -Wtype-limits"
 136         . " -Wundef"
 137         . " -Werror"
 138         ;
 139
 140 # These are used in addition to $gcc_devteam_warn when the compiler is clang.
 141 # TODO(openssl-team): fix problems and investigate if (at least) the
 142 # following warnings can also be enabled:
 143 #       -Wcast-align
 144 #       -Wunreachable-code -- no, too ugly/compiler-specific
 145 #       -Wlanguage-extension-token -- no, we use asm()
 146 #       -Wunused-macros -- no, too tricky for BN and _XOPEN_SOURCE etc
 147 #       -Wextended-offsetof -- no, needed in CMS ASN1 code
 148 my $clang_devteam_warn = ""
 149         . " -Wswitch-default"
 150         . " -Wno-parentheses-equality"
 151         . " -Wno-language-extension-token"
 152         . " -Wno-extended-offsetof"
 153         . " -Wconditional-uninitialized"
 154         . " -Wincompatible-pointer-types-discards-qualifiers"
 155         . " -Wmissing-variable-declarations"
 156         . " -Wno-unknown-warning-option"
 157         ;
 158
 159 # This adds backtrace information to the memory leak info.  Is only used
 160 # when crypto-mdebug-backtrace is enabled.
 161 my $memleak_devteam_backtrace = "-rdynamic";
 162
 163 my $strict_warnings = 0;
 164
 165 # As for $BSDthreads. Idea is to maintain "collective" set of flags,
 166 # which would cover all BSD flavors. -pthread applies to them all,
 167 # but is treated differently. OpenBSD expands is as -D_POSIX_THREAD
 168 # -lc_r, which is sufficient. FreeBSD 4.x expands it as -lc_r,
 169 # which has to be accompanied by explicit -D_THREAD_SAFE and
 170 # sometimes -D_REENTRANT. FreeBSD 5.x expands it as -lc_r, which
 171 # seems to be sufficient?
 172 our $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";
 173
 174 #
 175 # API compatibility name to version number mapping.
 176 #
 177 my $maxapi = "3.0.0";           # API for "no-deprecated" builds
 178 my $apitable = {
 179     "3.0.0" => 3,
 180     "1.1.1" => 2,
 181     "1.1.0" => 2,
 182     "1.0.2" => 1,
 183     "1.0.1" => 1,
 184     "1.0.0" => 1,
 185     "0.9.8" => 0,
 186 };
 187
 188 our %table = ();
 189 our %config = ();
 190 our %withargs = ();
 191 our $now_printing;      # set to current entry's name in print_table_entry
 192                         # (todo: right thing would be to encapsulate name
 193                         # into %target [class] and make print_table_entry
 194                         # a method)
 195
 196 # Forward declarations ###############################################
 197
 198 # read_config(filename)
 199 #
 200 # Reads a configuration file and populates %table with the contents
 201 # (which the configuration file places in %targets).
 202 sub read_config;
 203
 204 # resolve_config(target)
 205 #
 206 # Resolves all the late evaluations, inheritances and so on for the
 207 # chosen target and any target it inherits from.
 208 sub resolve_config;
 209
 210
 211 # Information collection #############################################
 212
 213 # Unified build supports separate build dir
 214 my $srcdir = catdir(absolutedir(dirname($0))); # catdir ensures local syntax
 215 my $blddir = catdir(absolutedir("."));         # catdir ensures local syntax
 216 my $dofile = abs2rel(catfile($srcdir, "util/dofile.pl"));
 217
 218 my $local_config_envname = 'OPENSSL_LOCAL_CONFIG_DIR';
 219
 220 $config{sourcedir} = abs2rel($srcdir);
 221 $config{builddir} = abs2rel($blddir);
 222
 223 # Collect reconfiguration information if needed
 224 my @argvcopy=@ARGV;
 225
 226 if (grep /^reconf(igure)?$/, @argvcopy) {
 227     die "reconfiguring with other arguments present isn't supported"
 228         if scalar @argvcopy > 1;
 229     if (-f "./configdata.pm") {
 230         my $file = "./configdata.pm";
 231         unless (my $return = do $file) {
 232             die "couldn't parse $file: $@" if $@;
 233             die "couldn't do $file: $!"    unless defined $return;
 234             die "couldn't run $file"       unless $return;
 235         }
 236
 237         @argvcopy = defined($configdata::config{perlargv}) ?
 238             @{$configdata::config{perlargv}} : ();
 239         die "Incorrect data to reconfigure, please do a normal configuration\n"
 240             if (grep(/^reconf/,@argvcopy));
 241         $config{perlenv} = $configdata::config{perlenv} // {};
 242     } else {
 243         die "Insufficient data to reconfigure, please do a normal configuration\n";
 244     }
 245 }
 246
 247 $config{perlargv} = [ @argvcopy ];
 248
 249 # Collect version numbers
 250 $config{major} = "unknown";
 251 $config{minor} = "unknown";
 252 $config{patch} = "unknown";
 253 $config{prerelease} = "";
 254 $config{build_metadata} = "";
 255 $config{shlib_version} = "unknown";
 256
 257 collect_information(
 258     collect_from_file(catfile($srcdir,'include/openssl/opensslv.h')),
 259     qr/#\s+define\s+OPENSSL_VERSION_MAJOR\s+(\d+)/ =>
 260         sub { $config{major} = $1; },
 261     qr/#\s+define\s+OPENSSL_VERSION_MINOR\s+(\d+)/ =>
 262         sub { $config{minor} = $1; },
 263     qr/#\s+define\s+OPENSSL_VERSION_PATCH\s+(\d+)/ =>
 264         sub { $config{patch} = $1; },
 265     qr/#\s+define\s+OPENSSL_VERSION_PRE_RELEASE\s+"((?:\\.|[^"])*)"/ =>
 266         sub { $config{prerelease} = $1; },
 267     qr/#\s+define\s+OPENSSL_VERSION_BUILD_METADATA\s+"((?:\\.|[^"])*)"/ =>
 268         sub { $config{build_metadata} = $1; },
 269     qr/#\s+define\s+OPENSSL_SHLIB_VERSION\s+([\d\.]+)/ =>
 270         sub { $config{shlib_version} = $1; },
 271     );
 272 die "erroneous version information in opensslv.h: ",
 273     "$config{major}.$config{minor}.$config{patch}, $config{shlib_version}\n"
 274     if ($config{major} eq "unknown"
 275             || $config{minor} eq "unknown"
 276             || $config{patch} eq "unknown"
 277             || $config{shlib_version} eq "unknown");
 278
 279 $config{version} = "$config{major}.$config{minor}.$config{patch}";
 280 $config{full_version} = "$config{version}$config{prerelease}$config{build_metadata}";
 281
 282 # Collect target configurations
 283
 284 my $pattern = catfile(dirname($0), "Configurations", "*.conf");
 285 foreach (sort glob($pattern)) {
 286     &read_config($_);
 287 }
 288
 289 if (defined env($local_config_envname)) {
 290     if ($^O eq 'VMS') {
 291         # VMS environment variables are logical names,
 292         # which can be used as is
 293         $pattern = $local_config_envname . ':' . '*.conf';
 294     } else {
 295         $pattern = catfile(env($local_config_envname), '*.conf');
 296     }
 297
 298     foreach (sort glob($pattern)) {
 299         &read_config($_);
 300     }
 301 }
 302
 303 # Save away perl command information
 304 $config{perl_cmd} = $^X;
 305 $config{perl_version} = $Config{version};
 306 $config{perl_archname} = $Config{archname};
 307
 308 $config{prefix}="";
 309 $config{openssldir}="";
 310 $config{processor}="";
 311 $config{libdir}="";
 312 my $auto_threads=1;    # enable threads automatically? true by default
 313 my $default_ranlib;
 314
 315 # Known TLS and DTLS protocols
 316 my @tls = qw(ssl3 tls1 tls1_1 tls1_2 tls1_3);
 317 my @dtls = qw(dtls1 dtls1_2);
 318
 319 # Explicitly known options that are possible to disable.  They can
 320 # be regexps, and will be used like this: /^no-${option}$/
 321 # For developers: keep it sorted alphabetically
 322
 323 my @disablables = (
 324     "ktls",
 325     "afalgeng",
 326     "aria",
 327     "asan",
 328     "asm",
 329     "async",
 330     "autoalginit",
 331     "autoerrinit",
 332     "autoload-config",
 333     "bf",
 334     "blake2",
 335     "camellia",
 336     "capieng",
 337     "cast",
 338     "chacha",
 339     "cmac",
 340     "cms",
 341     "comp",
 342     "crypto-mdebug",
 343     "crypto-mdebug-backtrace",
 344     "ct",
 345     "deprecated",
 346     "des",
 347     "devcryptoeng",
 348     "dgram",
 349     "dh",
 350     "dsa",
 351     "dso",
 352     "dtls",
 353     "dynamic-engine",
 354     "ec",
 355     "ec2m",
 356     "ecdh",
 357     "ecdsa",
 358     "ec_nistp_64_gcc_128",
 359     "egd",
 360     "engine",
 361     "err",
 362     "external-tests",
 363     "filenames",
 364     "fuzz-libfuzzer",
 365     "fuzz-afl",
 366     "gost",
 367     "heartbeats",
 368     "hw(-.+)?",
 369     "idea",
 370     "makedepend",
 371     "md2",
 372     "md4",
 373     "mdc2",
 374     "msan",
 375     "multiblock",
 376     "nextprotoneg",
 377     "pinshared",
 378     "ocb",
 379     "ocsp",
 380     "pic",
 381     "poly1305",
 382     "posix-io",
 383     "psk",
 384     "rc2",
 385     "rc4",
 386     "rc5",
 387     "rdrand",
 388     "rfc3779",
 389     "rmd160",
 390     "scrypt",
 391     "sctp",
 392     "seed",
 393     "shared",
 394     "siphash",
 395     "siv",
 396     "sm2",
 397     "sm3",
 398     "sm4",
 399     "sock",
 400     "srp",
 401     "srtp",
 402     "sse2",
 403     "ssl",
 404     "ssl-trace",
 405     "static-engine",
 406     "stdio",
 407     "tests",
 408     "threads",
 409     "tls",
 410     "ts",
 411     "ubsan",
 412     "ui-console",
 413     "unit-test",
 414     "whirlpool",
 415     "weak-ssl-ciphers",
 416     "zlib",
 417     "zlib-dynamic",
 418     );
 419 foreach my $proto ((@tls, @dtls))
 420         {
 421         push(@disablables, $proto);
 422         push(@disablables, "$proto-method") unless $proto eq "tls1_3";
 423         }
 424
 425 my %deprecated_disablables = (
 426     "ssl2" => undef,
 427     "buf-freelists" => undef,
 428     "ripemd" => "rmd160",
 429     "ui" => "ui-console",
 430     );
 431
 432 # All of the following are disabled by default:
 433
 434 our %disabled = ( # "what"         => "comment"
 435                   "asan"                => "default",
 436                   "crypto-mdebug"       => "default",
 437                   "crypto-mdebug-backtrace" => "default",
 438                   "devcryptoeng"        => "default",
 439                   "ec_nistp_64_gcc_128" => "default",
 440                   "egd"                 => "default",
 441                   "external-tests"      => "default",
 442                   "fuzz-libfuzzer"      => "default",
 443                   "fuzz-afl"            => "default",
 444                   "heartbeats"          => "default",
 445                   "md2"                 => "default",
 446                   "msan"                => "default",
 447                   "rc5"                 => "default",
 448                   "sctp"                => "default",
 449                   "ssl-trace"           => "default",
 450                   "ssl3"                => "default",
 451                   "ssl3-method"         => "default",
 452                   "ubsan"               => "default",
 453                   "unit-test"           => "default",
 454                   "weak-ssl-ciphers"    => "default",
 455                   "zlib"                => "default",
 456                   "zlib-dynamic"        => "default",
 457                   "ktls"                => "default",
 458                 );
 459
 460 # Note: => pair form used for aesthetics, not to truly make a hash table
 461 my @disable_cascades = (
 462     # "what"            => [ "cascade", ... ]
 463     sub { $config{processor} eq "386" }
 464                         => [ "sse2" ],
 465     "ssl"               => [ "ssl3" ],
 466     "ssl3-method"       => [ "ssl3" ],
 467     "zlib"              => [ "zlib-dynamic" ],
 468     "des"               => [ "mdc2" ],
 469     "ec"                => [ "ecdsa", "ecdh" ],
 470
 471     "dgram"             => [ "dtls", "sctp" ],
 472     "sock"              => [ "dgram" ],
 473     "dtls"              => [ @dtls ],
 474     sub { 0 == scalar grep { !$disabled{$_} } @dtls }
 475                         => [ "dtls" ],
 476
 477     "tls"               => [ @tls ],
 478     sub { 0 == scalar grep { !$disabled{$_} } @tls }
 479                         => [ "tls" ],
 480
 481     "crypto-mdebug"     => [ "crypto-mdebug-backtrace" ],
 482
 483     # Without DSO, we can't load dynamic engines, so don't build them dynamic
 484     "dso"               => [ "dynamic-engine" ],
 485
 486     # Without position independent code, there can be no shared libraries or DSOs
 487     "pic"               => [ "shared" ],
 488     "shared"            => [ "dynamic-engine" ],
 489     "engine"            => [ "afalgeng", "devcryptoeng" ],
 490
 491     # no-autoalginit is only useful when building non-shared
 492     "autoalginit"       => [ "shared", "apps" ],
 493
 494     "stdio"             => [ "apps", "capieng", "egd" ],
 495     "apps"              => [ "tests" ],
 496     "tests"             => [ "external-tests" ],
 497     "comp"              => [ "zlib" ],
 498     "ec"                => [ "tls1_3", "sm2" ],
 499     "sm3"               => [ "sm2" ],
 500     sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
 501
 502     sub { !$disabled{"msan"} } => [ "asm" ],
 503
 504     sub { $disabled{cmac}; } => [ "siv" ],
 505     );
 506
 507 # Avoid protocol support holes.  Also disable all versions below N, if version
 508 # N is disabled while N+1 is enabled.
 509 #
 510 my @list = (reverse @tls);
 511 while ((my $first, my $second) = (shift @list, shift @list)) {
 512     last unless @list;
 513     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 514                               => [ @list ] );
 515     unshift @list, $second;
 516 }
 517 my @list = (reverse @dtls);
 518 while ((my $first, my $second) = (shift @list, shift @list)) {
 519     last unless @list;
 520     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 521                               => [ @list ] );
 522     unshift @list, $second;
 523 }
 524
 525 # Explicit "no-..." options will be collected in %disabled along with the defaults.
 526 # To remove something from %disabled, use "enable-foo".
 527 # For symmetry, "disable-foo" is a synonym for "no-foo".
 528
 529 &usage if ($#ARGV < 0);
 530
 531 # For the "make variables" CINCLUDES and CDEFINES, we support lists with
 532 # platform specific list separators.  Users from those platforms should
 533 # recognise those separators from how you set up the PATH to find executables.
 534 # The default is the Unix like separator, :, but as an exception, we also
 535 # support the space as separator.
 536 my $list_separator_re =
 537     { VMS           => qr/(?<!\^),/,
 538       MSWin32       => qr/(?<!\\);/ } -> {$^O} // qr/(?<!\\)[:\s]/;
 539 # All the "make variables" we support
 540 # Some get pre-populated for the sake of backward compatibility
 541 # (we supported those before the change to "make variable" support.
 542 my %user = (
 543     AR          => env('AR'),
 544     ARFLAGS     => [],
 545     AS          => undef,
 546     ASFLAGS     => [],
 547     CC          => env('CC'),
 548     CFLAGS      => [],
 549     CXX         => env('CXX'),
 550     CXXFLAGS    => [],
 551     CPP         => undef,
 552     CPPFLAGS    => [],  # -D, -I, -Wp,
 553     CPPDEFINES  => [],  # Alternative for -D
 554     CPPINCLUDES => [],  # Alternative for -I
 555     CROSS_COMPILE => env('CROSS_COMPILE'),
 556     HASHBANGPERL=> env('HASHBANGPERL') || env('PERL'),
 557     LD          => undef,
 558     LDFLAGS     => [],  # -L, -Wl,
 559     LDLIBS      => [],  # -l
 560     MT          => undef,
 561     MTFLAGS     => [],
 562     PERL        => env('PERL') || ($^O ne "VMS" ? $^X : "perl"),
 563     RANLIB      => env('RANLIB'),
 564     RC          => env('RC') || env('WINDRES'),
 565     RCFLAGS     => [],
 566     RM          => undef,
 567    );
 568 # Info about what "make variables" may be prefixed with the cross compiler
 569 # prefix.  This should NEVER mention any such variable with a list for value.
 570 my @user_crossable = qw ( AR AS CC CXX CPP LD MT RANLIB RC );
 571 # The same but for flags given as Configure options.  These are *additional*
 572 # input, as opposed to the VAR=string option that override the corresponding
 573 # config target attributes
 574 my %useradd = (
 575     CPPDEFINES  => [],
 576     CPPINCLUDES => [],
 577     CPPFLAGS    => [],
 578     CFLAGS      => [],
 579     CXXFLAGS    => [],
 580     LDFLAGS     => [],
 581     LDLIBS      => [],
 582    );
 583
 584 my %user_synonyms = (
 585     HASHBANGPERL=> 'PERL',
 586     RC          => 'WINDRES',
 587    );
 588
 589 # Some target attributes have been renamed, this is the translation table
 590 my %target_attr_translate =(
 591     ar          => 'AR',
 592     as          => 'AS',
 593     cc          => 'CC',
 594     cxx         => 'CXX',
 595     cpp         => 'CPP',
 596     hashbangperl => 'HASHBANGPERL',
 597     ld          => 'LD',
 598     mt          => 'MT',
 599     ranlib      => 'RANLIB',
 600     rc          => 'RC',
 601     rm          => 'RM',
 602    );
 603
 604 # Initialisers coming from 'config' scripts
 605 $config{defines} = [ split(/$list_separator_re/, env('__CNF_CPPDEFINES')) ];
 606 $config{includes} = [ split(/$list_separator_re/, env('__CNF_CPPINCLUDES')) ];
 607 $config{cppflags} = [ env('__CNF_CPPFLAGS') || () ];
 608 $config{cflags} = [ env('__CNF_CFLAGS') || () ];
 609 $config{cxxflags} = [ env('__CNF_CXXFLAGS') || () ];
 610 $config{lflags} = [ env('__CNF_LDFLAGS') || () ];
 611 $config{ex_libs} = [ env('__CNF_LDLIBS') || () ];
 612
 613 $config{openssl_api_defines}=[];
 614 $config{openssl_sys_defines}=[];
 615 $config{openssl_feature_defines}=[];
 616 $config{options}="";
 617 $config{build_type} = "release";
 618 my $target="";
 619
 620 my %cmdvars = ();               # Stores FOO='blah' type arguments
 621 my %unsupported_options = ();
 622 my %deprecated_options = ();
 623 # If you change this, update apps/version.c
 624 my @known_seed_sources = qw(getrandom devrandom os egd none rdcpu librandom);
 625 my @seed_sources = ();
 626 while (@argvcopy)
 627         {
 628         $_ = shift @argvcopy;
 629
 630         # Support env variable assignments among the options
 631         if (m|^(\w+)=(.+)?$|)
 632                 {
 633                 $cmdvars{$1} = $2;
 634                 # Every time a variable is given as a configuration argument,
 635                 # it acts as a reset if the variable.
 636                 if (exists $user{$1})
 637                         {
 638                         $user{$1} = ref $user{$1} eq "ARRAY" ? [] : undef;
 639                         }
 640                 #if (exists $useradd{$1})
 641                 #       {
 642                 #       $useradd{$1} = [];
 643                 #       }
 644                 next;
 645                 }
 646
 647         # VMS is a case insensitive environment, and depending on settings
 648         # out of our control, we may receive options uppercased.  Let's
 649         # downcase at least the part before any equal sign.
 650         if ($^O eq "VMS")
 651                 {
 652                 s/^([^=]*)/lc($1)/e;
 653                 }
 654
 655         # some people just can't read the instructions, clang people have to...
 656         s/^-no-(?!integrated-as)/no-/;
 657
 658         # rewrite some options in "enable-..." form
 659         s /^-?-?shared$/enable-shared/;
 660         s /^sctp$/enable-sctp/;
 661         s /^threads$/enable-threads/;
 662         s /^zlib$/enable-zlib/;
 663         s /^zlib-dynamic$/enable-zlib-dynamic/;
 664
 665         if (/^(no|disable|enable)-(.+)$/)
 666                 {
 667                 my $word = $2;
 668                 if (!exists $deprecated_disablables{$word}
 669                         && !grep { $word =~ /^${_}$/ } @disablables)
 670                         {
 671                         $unsupported_options{$_} = 1;
 672                         next;
 673                         }
 674                 }
 675         if (/^no-(.+)$/ || /^disable-(.+)$/)
 676                 {
 677                 foreach my $proto ((@tls, @dtls))
 678                         {
 679                         if ($1 eq "$proto-method")
 680                                 {
 681                                 $disabled{"$proto"} = "option($proto-method)";
 682                                 last;
 683                                 }
 684                         }
 685                 if ($1 eq "dtls")
 686                         {
 687                         foreach my $proto (@dtls)
 688                                 {
 689                                 $disabled{$proto} = "option(dtls)";
 690                                 }
 691                         $disabled{"dtls"} = "option(dtls)";
 692                         }
 693                 elsif ($1 eq "ssl")
 694                         {
 695                         # Last one of its kind
 696                         $disabled{"ssl3"} = "option(ssl)";
 697                         }
 698                 elsif ($1 eq "tls")
 699                         {
 700                         # XXX: Tests will fail if all SSL/TLS
 701                         # protocols are disabled.
 702                         foreach my $proto (@tls)
 703                                 {
 704                                 $disabled{$proto} = "option(tls)";
 705                                 }
 706                         }
 707                 elsif ($1 eq "static-engine")
 708                         {
 709                         delete $disabled{"dynamic-engine"};
 710                         }
 711                 elsif ($1 eq "dynamic-engine")
 712                         {
 713                         $disabled{"dynamic-engine"} = "option";
 714                         }
 715                 elsif (exists $deprecated_disablables{$1})
 716                         {
 717                         $deprecated_options{$_} = 1;
 718                         if (defined $deprecated_disablables{$1})
 719                                 {
 720                                 $disabled{$deprecated_disablables{$1}} = "option";
 721                                 }
 722                         }
 723                 else
 724                         {
 725                         $disabled{$1} = "option";
 726                         }
 727                 # No longer an automatic choice
 728                 $auto_threads = 0 if ($1 eq "threads");
 729                 }
 730         elsif (/^enable-(.+)$/)
 731                 {
 732                 if ($1 eq "static-engine")
 733                         {
 734                         $disabled{"dynamic-engine"} = "option";
 735                         }
 736                 elsif ($1 eq "dynamic-engine")
 737                         {
 738                         delete $disabled{"dynamic-engine"};
 739                         }
 740                 elsif ($1 eq "zlib-dynamic")
 741                         {
 742                         delete $disabled{"zlib"};
 743                         }
 744                 my $algo = $1;
 745                 delete $disabled{$algo};
 746
 747                 # No longer an automatic choice
 748                 $auto_threads = 0 if ($1 eq "threads");
 749                 }
 750         elsif (/^--strict-warnings$/)
 751                 {
 752                 $strict_warnings = 1;
 753                 }
 754         elsif (/^--debug$/)
 755                 {
 756                 $config{build_type} = "debug";
 757                 }
 758         elsif (/^--release$/)
 759                 {
 760                 $config{build_type} = "release";
 761                 }
 762         elsif (/^386$/)
 763                 { $config{processor}=386; }
 764         elsif (/^fips$/)
 765                 {
 766                 die "FIPS mode not supported\n";
 767                 }
 768         elsif (/^rsaref$/)
 769                 {
 770                 # No RSAref support any more since it's not needed.
 771                 # The check for the option is there so scripts aren't
 772                 # broken
 773                 }
 774         elsif (/^nofipscanistercheck$/)
 775                 {
 776                 die "FIPS mode not supported\n";
 777                 }
 778         elsif (/^[-+]/)
 779                 {
 780                 if (/^--prefix=(.*)$/)
 781                         {
 782                         $config{prefix}=$1;
 783                         die "Directory given with --prefix MUST be absolute\n"
 784                                 unless file_name_is_absolute($config{prefix});
 785                         }
 786                 elsif (/^--api=(.*)$/)
 787                         {
 788                         $config{api}=$1;
 789                         }
 790                 elsif (/^--libdir=(.*)$/)
 791                         {
 792                         $config{libdir}=$1;
 793                         }
 794                 elsif (/^--openssldir=(.*)$/)
 795                         {
 796                         $config{openssldir}=$1;
 797                         }
 798                 elsif (/^--with-zlib-lib=(.*)$/)
 799                         {
 800                         $withargs{zlib_lib}=$1;
 801                         }
 802                 elsif (/^--with-zlib-include=(.*)$/)
 803                         {
 804                         $withargs{zlib_include}=$1;
 805                         }
 806                 elsif (/^--with-fuzzer-lib=(.*)$/)
 807                         {
 808                         $withargs{fuzzer_lib}=$1;
 809                         }
 810                 elsif (/^--with-fuzzer-include=(.*)$/)
 811                         {
 812                         $withargs{fuzzer_include}=$1;
 813                         }
 814                 elsif (/^--with-rand-seed=(.*)$/)
 815                         {
 816                         foreach my $x (split(m|,|, $1))
 817                             {
 818                             die "Unknown --with-rand-seed choice $x\n"
 819                                 if ! grep { $x eq $_ } @known_seed_sources;
 820                             push @seed_sources, $x;
 821                             }
 822                         }
 823                 elsif (/^--cross-compile-prefix=(.*)$/)
 824                         {
 825                         $user{CROSS_COMPILE}=$1;
 826                         }
 827                 elsif (/^--config=(.*)$/)
 828                         {
 829                         read_config $1;
 830                         }
 831                 elsif (/^-l(.*)$/)
 832                         {
 833                         push @{$useradd{LDLIBS}}, $_;
 834                         }
 835                 elsif (/^-framework$/)
 836                         {
 837                         push @{$useradd{LDLIBS}}, $_, shift(@argvcopy);
 838                         }
 839                 elsif (/^-L(.*)$/ or /^-Wl,/)
 840                         {
 841                         push @{$useradd{LDFLAGS}}, $_;
 842                         }
 843                 elsif (/^-rpath$/ or /^-R$/)
 844                         # -rpath is the OSF1 rpath flag
 845                         # -R is the old Solaris rpath flag
 846                         {
 847                         my $rpath = shift(@argvcopy) || "";
 848                         $rpath .= " " if $rpath ne "";
 849                         push @{$useradd{LDFLAGS}}, $_, $rpath;
 850                         }
 851                 elsif (/^-static$/)
 852                         {
 853                         push @{$useradd{LDFLAGS}}, $_;
 854                         $disabled{"dso"} = "forced";
 855                         $disabled{"pic"} = "forced";
 856                         $disabled{"shared"} = "forced";
 857                         $disabled{"threads"} = "forced";
 858                         }
 859                 elsif (/^-D(.*)$/)
 860                         {
 861                         push @{$useradd{CPPDEFINES}}, $1;
 862                         }
 863                 elsif (/^-I(.*)$/)
 864                         {
 865                         push @{$useradd{CPPINCLUDES}}, $1;
 866                         }
 867                 elsif (/^-Wp,$/)
 868                         {
 869                         push @{$useradd{CPPFLAGS}}, $1;
 870                         }
 871                 else    # common if (/^[-+]/), just pass down...
 872                         {
 873                         $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
 874                         push @{$useradd{CFLAGS}}, $_;
 875                         push @{$useradd{CXXFLAGS}}, $_;
 876                         }
 877                 }
 878         else
 879                 {
 880                 die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
 881                 $target=$_;
 882                 }
 883         unless ($_ eq $target || /^no-/ || /^disable-/)
 884                 {
 885                 # "no-..." follows later after implied deactivations
 886                 # have been derived.  (Don't take this too seriously,
 887                 # we really only write OPTIONS to the Makefile out of
 888                 # nostalgia.)
 889
 890                 if ($config{options} eq "")
 891                         { $config{options} = $_; }
 892                 else
 893                         { $config{options} .= " ".$_; }
 894                 }
 895         }
 896
 897 if (defined($config{api}) && !exists $apitable->{$config{api}}) {
 898         die "***** Unsupported api compatibility level: $config{api}\n",
 899 }
 900
 901 if (keys %deprecated_options)
 902         {
 903         warn "***** Deprecated options: ",
 904                 join(", ", keys %deprecated_options), "\n";
 905         }
 906 if (keys %unsupported_options)
 907         {
 908         die "***** Unsupported options: ",
 909                 join(", ", keys %unsupported_options), "\n";
 910         }
 911
 912 # If any %useradd entry has been set, we must check that the "make
 913 # variables" haven't been set.  We start by checking of any %useradd entry
 914 # is set.
 915 if (grep { scalar @$_ > 0 } values %useradd) {
 916     # Hash of env / make variables names.  The possible values are:
 917     # 1 - "make vars"
 918     # 2 - %useradd entry set
 919     # 3 - both set
 920     my %detected_vars =
 921         map { my $v = 0;
 922               $v += 1 if $cmdvars{$_};
 923               $v += 2 if @{$useradd{$_}};
 924               $_ => $v }
 925         keys %useradd;
 926
 927     # If any of the corresponding "make variables" is set, we error
 928     if (grep { $_ & 1 } values %detected_vars) {
 929         my $names = join(', ', grep { $detected_vars{$_} > 0 }
 930                                sort keys %detected_vars);
 931         die <<"_____";
 932 ***** Mixing make variables and additional compiler/linker flags as
 933 ***** configure command line option is not permitted.
 934 ***** Affected make variables: $names
 935 _____
 936     }
 937 }
 938
 939 # Check through all supported command line variables to see if any of them
 940 # were set, and canonicalise the values we got.  If no compiler or linker
 941 # flag or anything else that affects %useradd was set, we also check the
 942 # environment for values.
 943 my $anyuseradd =
 944     grep { defined $_ && (ref $_ ne 'ARRAY' || @$_) } values %useradd;
 945 foreach (keys %user) {
 946     my $value = $cmdvars{$_};
 947     $value //= env($_) unless $anyuseradd;
 948     $value //=
 949         defined $user_synonyms{$_} ? $cmdvars{$user_synonyms{$_}} : undef;
 950     $value //= defined $user_synonyms{$_} ? env($user_synonyms{$_}) : undef
 951         unless $anyuseradd;
 952
 953     if (defined $value) {
 954         if (ref $user{$_} eq 'ARRAY') {
 955             $user{$_} = [ split /$list_separator_re/, $value ];
 956         } elsif (!defined $user{$_}) {
 957             $user{$_} = $value;
 958         }
 959     }
 960 }
 961
 962 if (grep { /-rpath\b/ } ($user{LDFLAGS} ? @{$user{LDFLAGS}} : ())
 963     && !$disabled{shared}
 964     && !($disabled{asan} && $disabled{msan} && $disabled{ubsan})) {
 965     die "***** Cannot simultaneously use -rpath, shared libraries, and\n",
 966         "***** any of asan, msan or ubsan\n";
 967 }
 968
 969 my @tocheckfor = (keys %disabled);
 970 while (@tocheckfor) {
 971     my %new_tocheckfor = ();
 972     my @cascade_copy = (@disable_cascades);
 973     while (@cascade_copy) {
 974         my ($test, $descendents) = (shift @cascade_copy, shift @cascade_copy);
 975         if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
 976             foreach(grep { !defined($disabled{$_}) } @$descendents) {
 977                 $new_tocheckfor{$_} = 1; $disabled{$_} = "forced";
 978             }
 979         }
 980     }
 981     @tocheckfor = (keys %new_tocheckfor);
 982 }
 983
 984 our $die = sub { die @_; };
 985 if ($target eq "TABLE") {
 986     local $die = sub { warn @_; };
 987     foreach (sort keys %table) {
 988         print_table_entry($_, "TABLE");
 989     }
 990     exit 0;
 991 }
 992
 993 if ($target eq "LIST") {
 994     foreach (sort keys %table) {
 995         print $_,"\n" unless $table{$_}->{template};
 996     }
 997     exit 0;
 998 }
 999
1000 if ($target eq "HASH") {
1001     local $die = sub { warn @_; };
1002     print "%table = (\n";
1003     foreach (sort keys %table) {
1004         print_table_entry($_, "HASH");
1005     }
1006     exit 0;
1007 }
1008
1009 print "Configuring OpenSSL version $config{full_version} ";
1010 print "for target $target\n";
1011
1012 if (scalar(@seed_sources) == 0) {
1013     print "Using os-specific seed configuration\n";
1014     push @seed_sources, 'os';
1015 }
1016 if (scalar(grep { $_ eq 'none' } @seed_sources) > 0) {
1017     die "Cannot seed with none and anything else" if scalar(@seed_sources) > 1;
1018     warn <<_____ if scalar(@seed_sources) == 1;
1019
1020 ============================== WARNING ===============================
1021 You have selected the --with-rand-seed=none option, which effectively
1022 disables automatic reseeding of the OpenSSL random generator.
1023 All operations depending on the random generator such as creating keys
1024 will not work unless the random generator is seeded manually by the
1025 application.
1026
1027 Please read the 'Note on random number generation' section in the
1028 INSTALL instructions and the RAND_DRBG(7) manual page for more details.
1029 ============================== WARNING ===============================
1030
1031 _____
1032 }
1033 push @{$config{openssl_feature_defines}},
1034      map { (my $x = $_) =~ tr|[\-a-z]|[_A-Z]|; "OPENSSL_RAND_SEED_$x" }
1035         @seed_sources;
1036
1037 # Backward compatibility?
1038 if ($target =~ m/^CygWin32(-.*)$/) {
1039     $target = "Cygwin".$1;
1040 }
1041
1042 # Support for legacy targets having a name starting with 'debug-'
1043 my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
1044 if ($d) {
1045     $config{build_type} = "debug";
1046
1047     # If we do not find debug-foo in the table, the target is set to foo.
1048     if (!$table{$target}) {
1049         $target = $t;
1050     }
1051 }
1052
1053 &usage if !$table{$target} || $table{$target}->{template};
1054
1055 $config{target} = $target;
1056 my %target = resolve_config($target);
1057
1058 foreach (keys %target_attr_translate) {
1059     $target{$target_attr_translate{$_}} = $target{$_}
1060         if $target{$_};
1061     delete $target{$_};
1062 }
1063
1064 %target = ( %{$table{DEFAULTS}}, %target );
1065
1066 # Make the flags to build DSOs the same as for shared libraries unless they
1067 # are already defined
1068 $target{module_cflags} = $target{shared_cflag} unless defined $target{module_cflags};
1069 $target{module_cxxflags} = $target{shared_cxxflag} unless defined $target{module_cxxflags};
1070 $target{module_ldflags} = $target{shared_ldflag} unless defined $target{module_ldflags};
1071 {
1072     my $shared_info_pl =
1073         catfile(dirname($0), "Configurations", "shared-info.pl");
1074     my %shared_info = read_eval_file($shared_info_pl);
1075     push @{$target{_conf_fname_int}}, $shared_info_pl;
1076     my $si = $target{shared_target};
1077     while (ref $si ne "HASH") {
1078         last if ! defined $si;
1079         if (ref $si eq "CODE") {
1080             $si = $si->();
1081         } else {
1082             $si = $shared_info{$si};
1083         }
1084     }
1085
1086     # Some of the 'shared_target' values don't have any entried in
1087     # %shared_info.  That's perfectly fine, AS LONG AS the build file
1088     # template knows how to handle this.  That is currently the case for
1089     # Windows and VMS.
1090     if (defined $si) {
1091         # Just as above, copy certain shared_* attributes to the corresponding
1092         # module_ attribute unless the latter is already defined
1093         $si->{module_cflags} = $si->{shared_cflag} unless defined $si->{module_cflags};
1094         $si->{module_cxxflags} = $si->{shared_cxxflag} unless defined $si->{module_cxxflags};
1095         $si->{module_ldflags} = $si->{shared_ldflag} unless defined $si->{module_ldflags};
1096         foreach (sort keys %$si) {
1097             $target{$_} = defined $target{$_}
1098                 ? add($si->{$_})->($target{$_})
1099                 : $si->{$_};
1100         }
1101     }
1102 }
1103
1104 my %conf_files = map { $_ => 1 } (@{$target{_conf_fname_int}});
1105 $config{conf_files} = [ sort keys %conf_files ];
1106
1107 foreach my $feature (@{$target{disable}}) {
1108     if (exists $deprecated_disablables{$feature}) {
1109         warn "***** config $target disables deprecated feature $feature\n";
1110     } elsif (!grep { $feature eq $_ } @disablables) {
1111         die "***** config $target disables unknown feature $feature\n";
1112     }
1113     $disabled{$feature} = 'config';
1114 }
1115 foreach my $feature (@{$target{enable}}) {
1116     if ("default" eq ($disabled{$feature} // "")) {
1117         if (exists $deprecated_disablables{$feature}) {
1118             warn "***** config $target enables deprecated feature $feature\n";
1119         } elsif (!grep { $feature eq $_ } @disablables) {
1120             die "***** config $target enables unknown feature $feature\n";
1121         }
1122         delete $disabled{$feature};
1123     }
1124 }
1125
1126 $target{CXXFLAGS}//=$target{CFLAGS} if $target{CXX};
1127 $target{cxxflags}//=$target{cflags} if $target{CXX};
1128 $target{exe_extension}="";
1129 $target{exe_extension}=".exe" if ($config{target} eq "DJGPP"
1130                                   || $config{target} =~ /^(?:Cygwin|mingw)/);
1131 $target{exe_extension}=".pm"  if ($config{target} =~ /vos/);
1132 $target{def_extension}=".ld";
1133 $target{def_extension}=".def" if $config{target} =~ /^mingw|VC-/;
1134 $target{def_extension}=".opt" if $config{target} =~ /^vms/;
1135 ($target{shared_extension_simple}=$target{shared_extension})
1136     =~ s|\.\$\(SHLIB_VERSION_NUMBER\)||
1137     unless defined($target{shared_extension_simple});
1138 $target{dso_extension}//=$target{shared_extension_simple};
1139 ($target{shared_import_extension}=$target{shared_extension_simple}.".a")
1140     if ($config{target} =~ /^(?:Cygwin|mingw)/);
1141
1142 # Fill %config with values from %user, and in case those are undefined or
1143 # empty, use values from %target (acting as a default).
1144 foreach (keys %user) {
1145     my $ref_type = ref $user{$_};
1146
1147     # Temporary function.  Takes an intended ref type (empty string or "ARRAY")
1148     # and a value that's to be coerced into that type.
1149     my $mkvalue = sub {
1150         my $type = shift;
1151         my $value = shift;
1152         my $undef_p = shift;
1153
1154         die "Too many arguments for \$mkvalue" if @_;
1155
1156         while (ref $value eq 'CODE') {
1157             $value = $value->();
1158         }
1159
1160         if ($type eq 'ARRAY') {
1161             return undef unless defined $value;
1162             return undef if ref $value ne 'ARRAY' && !$value;
1163             return undef if ref $value eq 'ARRAY' && !@$value;
1164             return [ $value ] unless ref $value eq 'ARRAY';
1165         }
1166         return undef unless $value;
1167         return $value;
1168     };
1169
1170     $config{$_} =
1171         $mkvalue->($ref_type, $user{$_})
1172         || $mkvalue->($ref_type, $target{$_});
1173     delete $config{$_} unless defined $config{$_};
1174 }
1175
1176 # Allow overriding the build file name
1177 $config{build_file} = env('BUILDFILE') || $target{build_file} || "Makefile";
1178
1179 ######################################################################
1180 # Build up information for skipping certain directories depending on disabled
1181 # features, as well as setting up macros for disabled features.
1182
1183 # This is a tentative database of directories to skip.  Some entries may not
1184 # correspond to anything real, but that's ok, they will simply be ignored.
1185 # The actual processing of these entries is done in the build.info lookup
1186 # loop further down.
1187 #
1188 # The key is a Unix formated path in the source tree, the value is an index
1189 # into %disabled_info, so any existing path gets added to a corresponding
1190 # 'skipped' entry in there with the list of skipped directories.
1191 my %skipdir = ();
1192 my %disabled_info = ();         # For configdata.pm
1193 foreach my $what (sort keys %disabled) {
1194     $config{options} .= " no-$what";
1195
1196     if (!grep { $what eq $_ } ( 'dso', 'threads', 'shared', 'pic',
1197                                 'dynamic-engine', 'makedepend',
1198                                 'zlib-dynamic', 'zlib', 'sse2' )) {
1199         (my $WHAT = uc $what) =~ s|-|_|g;
1200         my $skipdir = $what;
1201
1202         # fix-up crypto/directory name(s)
1203         $skipdir = "ripemd" if $what eq "rmd160";
1204         $skipdir = "whrlpool" if $what eq "whirlpool";
1205
1206         my $macro = $disabled_info{$what}->{macro} = "OPENSSL_NO_$WHAT";
1207         push @{$config{openssl_feature_defines}}, $macro;
1208
1209         $skipdir{engines} = $what if $what eq 'engine';
1210         $skipdir{"crypto/$skipdir"} = $what
1211             unless $what eq 'async' || $what eq 'err';
1212     }
1213 }
1214
1215 # Make sure build_scheme is consistent.
1216 $target{build_scheme} = [ $target{build_scheme} ]
1217     if ref($target{build_scheme}) ne "ARRAY";
1218
1219 my ($builder, $builder_platform, @builder_opts) =
1220     @{$target{build_scheme}};
1221
1222 foreach my $checker (($builder_platform."-".$target{build_file}."-checker.pm",
1223                       $builder_platform."-checker.pm")) {
1224     my $checker_path = catfile($srcdir, "Configurations", $checker);
1225     if (-f $checker_path) {
1226         my $fn = $ENV{CONFIGURE_CHECKER_WARN}
1227             ? sub { warn $@; } : sub { die $@; };
1228         if (! do $checker_path) {
1229             if ($@) {
1230                 $fn->($@);
1231             } elsif ($!) {
1232                 $fn->($!);
1233             } else {
1234                 $fn->("The detected tools didn't match the platform\n");
1235             }
1236         }
1237         last;
1238     }
1239 }
1240
1241 push @{$config{defines}}, "NDEBUG"    if $config{build_type} eq "release";
1242
1243 if ($target =~ /^mingw/ && `$config{CC} --target-help 2>&1` =~ m/-mno-cygwin/m)
1244         {
1245         push @{$config{cflags}}, "-mno-cygwin";
1246         push @{$config{cxxflags}}, "-mno-cygwin" if $config{CXX};
1247         push @{$config{shared_ldflag}}, "-mno-cygwin";
1248         }
1249
1250 if ($target =~ /linux.*-mips/ && !$disabled{asm}
1251         && !grep { $_ !~ /-m(ips|arch=)/ } (@{$user{CFLAGS}},
1252                                             @{$useradd{CFLAGS}})) {
1253         # minimally required architecture flags for assembly modules
1254         my $value;
1255         $value = '-mips2' if ($target =~ /mips32/);
1256         $value = '-mips3' if ($target =~ /mips64/);
1257         unshift @{$config{cflags}}, $value;
1258         unshift @{$config{cxxflags}}, $value if $config{CXX};
1259 }
1260
1261 # If threads aren't disabled, check how possible they are
1262 unless ($disabled{threads}) {
1263     if ($auto_threads) {
1264         # Enabled by default, disable it forcibly if unavailable
1265         if ($target{thread_scheme} eq "(unknown)") {
1266             $disabled{threads} = "unavailable";
1267         }
1268     } else {
1269         # The user chose to enable threads explicitly, let's see
1270         # if there's a chance that's possible
1271         if ($target{thread_scheme} eq "(unknown)") {
1272             # If the user asked for "threads" and we don't have internal
1273             # knowledge how to do it, [s]he is expected to provide any
1274             # system-dependent compiler options that are necessary.  We
1275             # can't truly check that the given options are correct, but
1276             # we expect the user to know what [s]He is doing.
1277             if (!@{$user{CFLAGS}} && !@{$useradd{CFLAGS}}
1278                     && !@{$user{CPPDEFINES}} && !@{$useradd{CPPDEFINES}}) {
1279                 die "You asked for multi-threading support, but didn't\n"
1280                     ,"provide any system-specific compiler options\n";
1281             }
1282         }
1283     }
1284 }
1285
1286 # If threads still aren't disabled, add a C macro to ensure the source
1287 # code knows about it.  Any other flag is taken care of by the configs.
1288 unless($disabled{threads}) {
1289     push @{$config{openssl_feature_defines}}, "OPENSSL_THREADS";
1290 }
1291
1292 # With "deprecated" disable all deprecated features.
1293 if (defined($disabled{"deprecated"})) {
1294         $config{api} = $maxapi;
1295 }
1296
1297 my $no_shared_warn=0;
1298 if ($target{shared_target} eq "")
1299         {
1300         $no_shared_warn = 1
1301             if (!$disabled{shared} || !$disabled{"dynamic-engine"});
1302         $disabled{shared} = "no-shared-target";
1303         $disabled{pic} = $disabled{shared} = $disabled{"dynamic-engine"} =
1304             "no-shared-target";
1305         }
1306
1307 if ($disabled{"dynamic-engine"}) {
1308         push @{$config{openssl_feature_defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
1309         $config{dynamic_engines} = 0;
1310 } else {
1311         push @{$config{openssl_feature_defines}}, "OPENSSL_NO_STATIC_ENGINE";
1312         $config{dynamic_engines} = 1;
1313 }
1314
1315 unless ($disabled{asan}) {
1316     push @{$config{cflags}}, "-fsanitize=address";
1317     push @{$config{cxxflags}}, "-fsanitize=address" if $config{CXX};
1318 }
1319
1320 unless ($disabled{ubsan}) {
1321     # -DPEDANTIC or -fnosanitize=alignment may also be required on some
1322     # platforms.
1323     push @{$config{cflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all";
1324     push @{$config{cxxflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all"
1325         if $config{CXX};
1326 }
1327
1328 unless ($disabled{msan}) {
1329   push @{$config{cflags}}, "-fsanitize=memory";
1330   push @{$config{cxxflags}}, "-fsanitize=memory" if $config{CXX};
1331 }
1332
1333 unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
1334         && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
1335     push @{$config{cflags}}, "-fno-omit-frame-pointer", "-g";
1336     push @{$config{cxxflags}}, "-fno-omit-frame-pointer", "-g" if $config{CXX};
1337 }
1338 #
1339 # Platform fix-ups
1340 #
1341
1342 # This saves the build files from having to check
1343 if ($disabled{pic})
1344         {
1345         foreach (qw(shared_cflag shared_cxxflag shared_cppflag
1346                     shared_defines shared_includes shared_ldflag
1347                     module_cflags module_cxxflags module_cppflags
1348                     module_defines module_includes module_lflags))
1349                 {
1350                 delete $config{$_};
1351                 $target{$_} = "";
1352                 }
1353         }
1354 else
1355         {
1356         push @{$config{lib_defines}}, "OPENSSL_PIC";
1357         }
1358
1359 if ($target{sys_id} ne "")
1360         {
1361         push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
1362         }
1363
1364 unless ($disabled{asm}) {
1365     $target{cpuid_asm_src}=$table{DEFAULTS}->{cpuid_asm_src} if ($config{processor} eq "386");
1366     push @{$config{lib_defines}}, "OPENSSL_CPUID_OBJ" if ($target{cpuid_asm_src} ne "mem_clr.c");
1367
1368     $target{bn_asm_src} =~ s/\w+-gf2m.c// if (defined($disabled{ec2m}));
1369
1370     # bn-586 is the only one implementing bn_*_part_words
1371     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_PART_WORDS" if ($target{bn_asm_src} =~ /bn-586/);
1372     push @{$config{lib_defines}}, "OPENSSL_IA32_SSE2" if (!$disabled{sse2} && $target{bn_asm_src} =~ /86/);
1373
1374     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT" if ($target{bn_asm_src} =~ /-mont/);
1375     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT5" if ($target{bn_asm_src} =~ /-mont5/);
1376     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_GF2m" if ($target{bn_asm_src} =~ /-gf2m/);
1377     push @{$config{lib_defines}}, "BN_DIV3W" if ($target{bn_asm_src} =~ /-div3w/);
1378
1379     if ($target{sha1_asm_src}) {
1380         push @{$config{lib_defines}}, "SHA1_ASM"   if ($target{sha1_asm_src} =~ /sx86/ || $target{sha1_asm_src} =~ /sha1/);
1381         push @{$config{lib_defines}}, "SHA256_ASM" if ($target{sha1_asm_src} =~ /sha256/);
1382         push @{$config{lib_defines}}, "SHA512_ASM" if ($target{sha1_asm_src} =~ /sha512/);
1383     }
1384     if ($target{keccak1600_asm_src} ne $table{DEFAULTS}->{keccak1600_asm_src}) {
1385         push @{$config{lib_defines}}, "KECCAK1600_ASM";
1386     }
1387     if ($target{rc4_asm_src} ne $table{DEFAULTS}->{rc4_asm_src}) {
1388         push @{$config{lib_defines}}, "RC4_ASM";
1389     }
1390     if ($target{md5_asm_src}) {
1391         push @{$config{lib_defines}}, "MD5_ASM";
1392     }
1393     $target{cast_asm_src}=$table{DEFAULTS}->{cast_asm_src} unless $disabled{pic}; # CAST assembler is not PIC
1394     if ($target{rmd160_asm_src}) {
1395         push @{$config{lib_defines}}, "RMD160_ASM";
1396     }
1397     if ($target{aes_asm_src}) {
1398         push @{$config{lib_defines}}, "AES_ASM" if ($target{aes_asm_src} =~ m/\baes-/);;
1399         # aes-ctr.fake is not a real file, only indication that assembler
1400         # module implements AES_ctr32_encrypt...
1401         push @{$config{lib_defines}}, "AES_CTR_ASM" if ($target{aes_asm_src} =~ s/\s*aes-ctr\.fake//);
1402         # aes-xts.fake indicates presence of AES_xts_[en|de]crypt...
1403         push @{$config{lib_defines}}, "AES_XTS_ASM" if ($target{aes_asm_src} =~ s/\s*aes-xts\.fake//);
1404         $target{aes_asm_src} =~ s/\s*(vpaes|aesni)-x86\.s//g if ($disabled{sse2});
1405         push @{$config{lib_defines}}, "VPAES_ASM" if ($target{aes_asm_src} =~ m/vpaes/);
1406         push @{$config{lib_defines}}, "BSAES_ASM" if ($target{aes_asm_src} =~ m/bsaes/);
1407     }
1408     if ($target{wp_asm_src} =~ /mmx/) {
1409         if ($config{processor} eq "386") {
1410             $target{wp_asm_src}=$table{DEFAULTS}->{wp_asm_src};
1411         } elsif (!$disabled{"whirlpool"}) {
1412             push @{$config{lib_defines}}, "WHIRLPOOL_ASM";
1413         }
1414     }
1415     if ($target{modes_asm_src} =~ /ghash-/) {
1416         push @{$config{lib_defines}}, "GHASH_ASM";
1417     }
1418     if ($target{ec_asm_src} =~ /ecp_nistz256/) {
1419         push @{$config{lib_defines}}, "ECP_NISTZ256_ASM";
1420     }
1421     if ($target{ec_asm_src} =~ /x25519/) {
1422         push @{$config{lib_defines}}, "X25519_ASM";
1423     }
1424     if ($target{padlock_asm_src} ne $table{DEFAULTS}->{padlock_asm_src}) {
1425         push @{$config{lib_defines}}, "PADLOCK_ASM";
1426     }
1427     if ($target{poly1305_asm_src} ne "") {
1428         push @{$config{lib_defines}}, "POLY1305_ASM";
1429     }
1430 }
1431
1432 my %predefined = compiler_predefined($config{CROSS_COMPILE}.$config{CC});
1433
1434 # Check for makedepend capabilities.
1435 if (!$disabled{makedepend}) {
1436     if ($config{target} =~ /^(VC|vms)-/) {
1437         # For VC- and vms- targets, there's nothing more to do here.  The
1438         # functionality is hard coded in the corresponding build files for
1439         # cl (Windows) and CC/DECC (VMS).
1440     } elsif (($predefined{__GNUC__} // -1) >= 3
1441              && !($predefined{__APPLE_CC__} && !$predefined{__clang__})) {
1442         # We know that GNU C version 3 and up as well as all clang
1443         # versions support dependency generation, but Xcode did not
1444         # handle $cc -M before clang support (but claims __GNUC__ = 3)
1445         $config{makedepprog} = "\$(CROSS_COMPILE)$config{CC}";
1446     } else {
1447         # In all other cases, we look for 'makedepend', and disable the
1448         # capability if not found.
1449         $config{makedepprog} = which('makedepend');
1450         $disabled{makedepend} = "unavailable" unless $config{makedepprog};
1451     }
1452 }
1453
1454 if (!$disabled{asm} && !$predefined{__MACH__} && $^O ne 'VMS') {
1455     # probe for -Wa,--noexecstack option...
1456     if ($predefined{__clang__}) {
1457         # clang has builtin assembler, which doesn't recognize --help,
1458         # but it apparently recognizes the option in question on all
1459         # supported platforms even when it's meaningless. In other words
1460         # probe would fail, but probed option always accepted...
1461         push @{$config{cflags}}, "-Wa,--noexecstack", "-Qunused-arguments";
1462     } else {
1463         my $cc = $config{CROSS_COMPILE}.$config{CC};
1464         open(PIPE, "$cc -Wa,--help -c -o null.$$.o -x assembler /dev/null 2>&1 |");
1465         while(<PIPE>) {
1466             if (m/--noexecstack/) {
1467                 push @{$config{cflags}}, "-Wa,--noexecstack";
1468                 last;
1469             }
1470         }
1471         close(PIPE);
1472         unlink("null.$$.o");
1473     }
1474 }
1475
1476 # Deal with bn_ops ###################################################
1477
1478 $config{bn_ll}                  =0;
1479 $config{export_var_as_fn}       =0;
1480 my $def_int="unsigned int";
1481 $config{rc4_int}                =$def_int;
1482 ($config{b64l},$config{b64},$config{b32})=(0,0,1);
1483
1484 my $count = 0;
1485 foreach (sort split(/\s+/,$target{bn_ops})) {
1486     $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
1487     $config{export_var_as_fn}=1                 if $_ eq 'EXPORT_VAR_AS_FN';
1488     $config{bn_ll}=1                            if $_ eq 'BN_LLONG';
1489     $config{rc4_int}="unsigned char"            if $_ eq 'RC4_CHAR';
1490     ($config{b64l},$config{b64},$config{b32})
1491         =(0,1,0)                                if $_ eq 'SIXTY_FOUR_BIT';
1492     ($config{b64l},$config{b64},$config{b32})
1493         =(1,0,0)                                if $_ eq 'SIXTY_FOUR_BIT_LONG';
1494     ($config{b64l},$config{b64},$config{b32})
1495         =(0,0,1)                                if $_ eq 'THIRTY_TWO_BIT';
1496 }
1497 die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
1498     if $count > 1;
1499
1500
1501 # Hack cflags for better warnings (dev option) #######################
1502
1503 # "Stringify" the C and C++ flags string.  This permits it to be made part of
1504 # a string and works as well on command lines.
1505 $config{cflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1506                         @{$config{cflags}} ];
1507 $config{cxxflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1508                           @{$config{cxxflags}} ] if $config{CXX};
1509
1510 $config{openssl_api_defines} = [
1511     "OPENSSL_MIN_API=".($apitable->{$config{api} // ""} // -1)
1512 ];
1513
1514 if ($strict_warnings)
1515         {
1516         my $wopt;
1517         my $gccver = $predefined{__GNUC__} // -1;
1518
1519         die "ERROR --strict-warnings requires gcc[>=4] or gcc-alike"
1520             unless $gccver >= 4;
1521         foreach $wopt (split /\s+/, $gcc_devteam_warn)
1522                 {
1523                 push @{$config{cflags}}, $wopt
1524                         unless grep { $_ eq $wopt } @{$config{cflags}};
1525                 push @{$config{cxxflags}}, $wopt
1526                         if ($config{CXX}
1527                             && !grep { $_ eq $wopt } @{$config{cxxflags}});
1528                 }
1529         if (defined($predefined{__clang__}))
1530                 {
1531                 foreach $wopt (split /\s+/, $clang_devteam_warn)
1532                         {
1533                         push @{$config{cflags}}, $wopt
1534                                 unless grep { $_ eq $wopt } @{$config{cflags}};
1535                         push @{$config{cxxflags}}, $wopt
1536                                 if ($config{CXX}
1537                                     && !grep { $_ eq $wopt } @{$config{cxxflags}});
1538                         }
1539                 }
1540         }
1541
1542 unless ($disabled{"crypto-mdebug-backtrace"})
1543         {
1544         foreach my $wopt (split /\s+/, $memleak_devteam_backtrace)
1545                 {
1546                 push @{$config{cflags}}, $wopt
1547                         unless grep { $_ eq $wopt } @{$config{cflags}};
1548                 push @{$config{cxxflags}}, $wopt
1549                         if ($config{CXX}
1550                             && !grep { $_ eq $wopt } @{$config{cxxflags}});
1551                 }
1552         if ($target =~ /^BSD-/)
1553                 {
1554                 push @{$config{ex_libs}}, "-lexecinfo";
1555                 }
1556         }
1557
1558 unless ($disabled{afalgeng}) {
1559     $config{afalgeng}="";
1560     if (grep { $_ eq 'afalgeng' } @{$target{enable}}) {
1561         my $minver = 4*10000 + 1*100 + 0;
1562         if ($config{CROSS_COMPILE} eq "") {
1563             my $verstr = `uname -r`;
1564             my ($ma, $mi1, $mi2) = split("\\.", $verstr);
1565             ($mi2) = $mi2 =~ /(\d+)/;
1566             my $ver = $ma*10000 + $mi1*100 + $mi2;
1567             if ($ver < $minver) {
1568                 $disabled{afalgeng} = "too-old-kernel";
1569             } else {
1570                 push @{$config{engdirs}}, "afalg";
1571             }
1572         } else {
1573             $disabled{afalgeng} = "cross-compiling";
1574         }
1575     } else {
1576         $disabled{afalgeng}  = "not-linux";
1577     }
1578 }
1579
1580 push @{$config{openssl_feature_defines}}, "OPENSSL_NO_AFALGENG" if ($disabled{afalgeng});
1581
1582 unless ($disabled{ktls}) {
1583     $config{ktls}="";
1584     if ($target =~ m/^linux/) {
1585         my $usr = "/usr/$config{cross_compile_prefix}";
1586         chop($usr);
1587         if ($config{cross_compile_prefix} eq "") {
1588             $usr = "/usr";
1589         }
1590         my $minver = (4 << 16) + (13 << 8) + 0;
1591         my @verstr = split(" ",`cat $usr/include/linux/version.h | grep LINUX_VERSION_CODE`);
1592
1593         if ($verstr[2] < $minver) {
1594             $disabled{ktls} = "too-old-kernel";
1595         }
1596     } else {
1597         $disabled{ktls}  = "not-linux";
1598     }
1599 }
1600
1601 push @{$config{openssl_other_defines}}, "OPENSSL_NO_KTLS" if ($disabled{ktls});
1602
1603 # Finish up %config by appending things the user gave us on the command line
1604 # apart from "make variables"
1605 foreach (keys %useradd) {
1606     # The must all be lists, so we assert that here
1607     die "internal error: \$useradd{$_} isn't an ARRAY\n"
1608         unless ref $useradd{$_} eq 'ARRAY';
1609
1610     if (defined $config{$_}) {
1611         push @{$config{$_}}, @{$useradd{$_}};
1612     } else {
1613         $config{$_} = [ @{$useradd{$_}} ];
1614     }
1615 }
1616
1617 # ALL MODIFICATIONS TO %config and %target MUST BE DONE FROM HERE ON
1618
1619 # If we use the unified build, collect information from build.info files
1620 my %unified_info = ();
1621
1622 my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
1623 if ($builder eq "unified") {
1624     use with_fallback qw(Text::Template);
1625
1626     sub cleandir {
1627         my $base = shift;
1628         my $dir = shift;
1629         my $relativeto = shift || ".";
1630
1631         $dir = catdir($base,$dir) unless isabsolute($dir);
1632
1633         # Make sure the directories we're building in exists
1634         mkpath($dir);
1635
1636         my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
1637         #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
1638         return $res;
1639     }
1640
1641     sub cleanfile {
1642         my $base = shift;
1643         my $file = shift;
1644         my $relativeto = shift || ".";
1645
1646         $file = catfile($base,$file) unless isabsolute($file);
1647
1648         my $d = dirname($file);
1649         my $f = basename($file);
1650
1651         # Make sure the directories we're building in exists
1652         mkpath($d);
1653
1654         my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
1655         #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
1656         return $res;
1657     }
1658
1659     # Store the name of the template file we will build the build file from
1660     # in %config.  This may be useful for the build file itself.
1661     my @build_file_template_names =
1662         ( $builder_platform."-".$target{build_file}.".tmpl",
1663           $target{build_file}.".tmpl" );
1664     my @build_file_templates = ();
1665
1666     # First, look in the user provided directory, if given
1667     if (defined env($local_config_envname)) {
1668         @build_file_templates =
1669             map {
1670                 if ($^O eq 'VMS') {
1671                     # VMS environment variables are logical names,
1672                     # which can be used as is
1673                     $local_config_envname . ':' . $_;
1674                 } else {
1675                     catfile(env($local_config_envname), $_);
1676                 }
1677             }
1678             @build_file_template_names;
1679     }
1680     # Then, look in our standard directory
1681     push @build_file_templates,
1682         ( map { cleanfile($srcdir, catfile("Configurations", $_), $blddir) }
1683           @build_file_template_names );
1684
1685     my $build_file_template;
1686     for $_ (@build_file_templates) {
1687         $build_file_template = $_;
1688         last if -f $build_file_template;
1689
1690         $build_file_template = undef;
1691     }
1692     if (!defined $build_file_template) {
1693         die "*** Couldn't find any of:\n", join("\n", @build_file_templates), "\n";
1694     }
1695     $config{build_file_templates}
1696       = [ cleanfile($srcdir, catfile("Configurations", "common0.tmpl"),
1697                     $blddir),
1698           $build_file_template,
1699           cleanfile($srcdir, catfile("Configurations", "common.tmpl"),
1700                     $blddir) ];
1701
1702     my @build_dirs = ( [ ] );   # current directory
1703
1704     $config{build_infos} = [ ];
1705
1706     my %ordinals = ();
1707     while (@build_dirs) {
1708         my @curd = @{shift @build_dirs};
1709         my $sourced = catdir($srcdir, @curd);
1710         my $buildd = catdir($blddir, @curd);
1711
1712         my $unixdir = join('/', @curd);
1713         if (exists $skipdir{$unixdir}) {
1714             my $what = $skipdir{$unixdir};
1715             push @{$disabled_info{$what}->{skipped}}, catdir(@curd);
1716             next;
1717         }
1718
1719         mkpath($buildd);
1720
1721         my $f = 'build.info';
1722         # The basic things we're trying to build
1723         my @programs = ();
1724         my @programs_install = ();
1725         my @libraries = ();
1726         my @libraries_install = ();
1727         my @engines = ();
1728         my @engines_install = ();
1729         my @scripts = ();
1730         my @scripts_install = ();
1731         my @extra = ();
1732         my @overrides = ();
1733         my @intermediates = ();
1734         my @rawlines = ();
1735
1736         my %sources = ();
1737         my %shared_sources = ();
1738         my %includes = ();
1739         my %defines = ();
1740         my %depends = ();
1741         my %renames = ();
1742         my %sharednames = ();
1743         my %generate = ();
1744
1745         # We want to detect configdata.pm in the source tree, so we
1746         # don't use it if the build tree is different.
1747         my $src_configdata = cleanfile($srcdir, "configdata.pm", $blddir);
1748
1749         push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
1750         my $template =
1751             Text::Template->new(TYPE => 'FILE',
1752                                 SOURCE => catfile($sourced, $f),
1753                                 PREPEND => qq{use lib "$FindBin::Bin/util/perl";});
1754         die "Something went wrong with $sourced/$f: $!\n" unless $template;
1755         my @text =
1756             split /^/m,
1757             $template->fill_in(HASH => { config => \%config,
1758                                          target => \%target,
1759                                          disabled => \%disabled,
1760                                          withargs => \%withargs,
1761                                          builddir => abs2rel($buildd, $blddir),
1762                                          sourcedir => abs2rel($sourced, $blddir),
1763                                          buildtop => abs2rel($blddir, $blddir),
1764                                          sourcetop => abs2rel($srcdir, $blddir) },
1765                                DELIMITERS => [ "{-", "-}" ]);
1766
1767         # The top item of this stack has the following values
1768         # -2 positive already run and we found ELSE (following ELSIF should fail)
1769         # -1 positive already run (skip until ENDIF)
1770         # 0 negatives so far (if we're at a condition, check it)
1771         # 1 last was positive (don't skip lines until next ELSE, ELSIF or ENDIF)
1772         # 2 positive ELSE (following ELSIF should fail)
1773         my @skip = ();
1774         collect_information(
1775             collect_from_array([ @text ],
1776                                qr/\\$/ => sub { my $l1 = shift; my $l2 = shift;
1777                                                 $l1 =~ s/\\$//; $l1.$l2 }),
1778             # Info we're looking for
1779             qr/^\s*IF\[((?:\\.|[^\\\]])*)\]\s*$/
1780             => sub {
1781                 if (! @skip || $skip[$#skip] > 0) {
1782                     push @skip, !! $1;
1783                 } else {
1784                     push @skip, -1;
1785                 }
1786             },
1787             qr/^\s*ELSIF\[((?:\\.|[^\\\]])*)\]\s*$/
1788             => sub { die "ELSIF out of scope" if ! @skip;
1789                      die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
1790                      $skip[$#skip] = -1 if $skip[$#skip] != 0;
1791                      $skip[$#skip] = !! $1
1792                          if $skip[$#skip] == 0; },
1793             qr/^\s*ELSE\s*$/
1794             => sub { die "ELSE out of scope" if ! @skip;
1795                      $skip[$#skip] = -2 if $skip[$#skip] != 0;
1796                      $skip[$#skip] = 2 if $skip[$#skip] == 0; },
1797             qr/^\s*ENDIF\s*$/
1798             => sub { die "ENDIF out of scope" if ! @skip;
1799                      pop @skip; },
1800             qr/^\s*SUBDIRS\s*=\s*(.*)\s*$/
1801             => sub {
1802                 if (!@skip || $skip[$#skip] > 0) {
1803                     foreach (tokenize($1)) {
1804                         push @build_dirs, [ @curd, splitdir($_, 1) ];
1805                     }
1806                 }
1807             },
1808             qr/^\s*PROGRAMS(_NO_INST)?\s*=\s*(.*)\s*$/
1809             => sub {
1810                 if (!@skip || $skip[$#skip] > 0) {
1811                     my $install = $1;
1812                     my @x = tokenize($2);
1813                     push @programs, @x;
1814                     push @programs_install, @x unless $install;
1815                 }
1816             },
1817             qr/^\s*LIBS(_NO_INST)?\s*=\s*(.*)\s*$/
1818             => sub {
1819                 if (!@skip || $skip[$#skip] > 0) {
1820                     my $install = $1;
1821                     my @x = tokenize($2);
1822                     push @libraries, @x;
1823                     push @libraries_install, @x unless $install;
1824                 }
1825             },
1826             qr/^\s*ENGINES(_NO_INST)?\s*=\s*(.*)\s*$/
1827             => sub {
1828                 if (!@skip || $skip[$#skip] > 0) {
1829                     my $install = $1;
1830                     my @x = tokenize($2);
1831                     push @engines, @x;
1832                     push @engines_install, @x unless $install;
1833                 }
1834             },
1835             qr/^\s*SCRIPTS(_NO_INST)?\s*=\s*(.*)\s*$/
1836             => sub {
1837                 if (!@skip || $skip[$#skip] > 0) {
1838                     my $install = $1;
1839                     my @x = tokenize($2);
1840                     push @scripts, @x;
1841                     push @scripts_install, @x unless $install;
1842                 }
1843             },
1844             qr/^\s*EXTRA\s*=\s*(.*)\s*$/
1845             => sub { push @extra, tokenize($1)
1846                          if !@skip || $skip[$#skip] > 0 },
1847             qr/^\s*OVERRIDES\s*=\s*(.*)\s*$/
1848             => sub { push @overrides, tokenize($1)
1849                          if !@skip || $skip[$#skip] > 0 },
1850
1851             qr/^\s*ORDINALS\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/,
1852             => sub { push @{$ordinals{$1}}, tokenize($2)
1853                          if !@skip || $skip[$#skip] > 0 },
1854             qr/^\s*SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1855             => sub { push @{$sources{$1}}, tokenize($2)
1856                          if !@skip || $skip[$#skip] > 0 },
1857             qr/^\s*SHARED_SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1858             => sub { push @{$shared_sources{$1}}, tokenize($2)
1859                          if !@skip || $skip[$#skip] > 0 },
1860             qr/^\s*INCLUDE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1861             => sub { push @{$includes{$1}}, tokenize($2)
1862                          if !@skip || $skip[$#skip] > 0 },
1863             qr/^\s*DEFINE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1864             => sub { push @{$defines{$1}}, tokenize($2)
1865                          if !@skip || $skip[$#skip] > 0 },
1866             qr/^\s*DEPEND\[((?:\\.|[^\\\]])*)\]\s*=\s*(.*)\s*$/
1867             => sub { push @{$depends{$1}}, tokenize($2)
1868                          if !@skip || $skip[$#skip] > 0 },
1869             qr/^\s*GENERATE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1870             => sub { push @{$generate{$1}}, $2
1871                          if !@skip || $skip[$#skip] > 0 },
1872             qr/^\s*RENAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1873             => sub { push @{$renames{$1}}, tokenize($2)
1874                          if !@skip || $skip[$#skip] > 0 },
1875             qr/^\s*SHARED_NAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1876             => sub { push @{$sharednames{$1}}, tokenize($2)
1877                          if !@skip || $skip[$#skip] > 0 },
1878             qr/^\s*BEGINRAW\[((?:\\.|[^\\\]])+)\]\s*$/
1879             => sub {
1880                 my $lineiterator = shift;
1881                 my $target_kind = $1;
1882                 while (defined $lineiterator->()) {
1883                     s|\R$||;
1884                     if (/^\s*ENDRAW\[((?:\\.|[^\\\]])+)\]\s*$/) {
1885                         die "ENDRAW doesn't match BEGINRAW"
1886                             if $1 ne $target_kind;
1887                         last;
1888                     }
1889                     next if @skip && $skip[$#skip] <= 0;
1890                     push @rawlines,  $_
1891                         if ($target_kind eq $target{build_file}
1892                             || $target_kind eq $target{build_file}."(".$builder_platform.")");
1893                 }
1894             },
1895             qr/^\s*(?:#.*)?$/ => sub { },
1896             "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
1897             "BEFORE" => sub {
1898                 if ($buildinfo_debug) {
1899                     print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
1900                     print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1901                 }
1902             },
1903             "AFTER" => sub {
1904                 if ($buildinfo_debug) {
1905                     print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1906                 }
1907             },
1908             );
1909         die "runaway IF?" if (@skip);
1910
1911         foreach (keys %renames) {
1912             die "$_ renamed to more than one thing: "
1913                 ,join(" ", @{$renames{$_}}),"\n"
1914                 if scalar @{$renames{$_}} > 1;
1915             my $dest = cleanfile($buildd, $_, $blddir);
1916             my $to = cleanfile($buildd, $renames{$_}->[0], $blddir);
1917             die "$dest renamed to more than one thing: "
1918                 ,$unified_info{rename}->{$dest}, $to
1919                 unless !defined($unified_info{rename}->{$dest})
1920                 or $unified_info{rename}->{$dest} eq $to;
1921             $unified_info{rename}->{$dest} = $to;
1922         }
1923
1924         foreach (@programs) {
1925             my $program = cleanfile($buildd, $_, $blddir);
1926             if ($unified_info{rename}->{$program}) {
1927                 $program = $unified_info{rename}->{$program};
1928             }
1929             $unified_info{programs}->{$program} = 1;
1930         }
1931
1932         foreach (@programs_install) {
1933             my $program = cleanfile($buildd, $_, $blddir);
1934             if ($unified_info{rename}->{$program}) {
1935                 $program = $unified_info{rename}->{$program};
1936             }
1937             $unified_info{install}->{programs}->{$program} = 1;
1938         }
1939
1940         foreach (@libraries) {
1941             my $library = cleanfile($buildd, $_, $blddir);
1942             if ($unified_info{rename}->{$library}) {
1943                 $library = $unified_info{rename}->{$library};
1944             }
1945             $unified_info{libraries}->{$library} = 1;
1946         }
1947
1948         foreach (@libraries_install) {
1949             my $library = cleanfile($buildd, $_, $blddir);
1950             if ($unified_info{rename}->{$library}) {
1951                 $library = $unified_info{rename}->{$library};
1952             }
1953             $unified_info{install}->{libraries}->{$library} = 1;
1954         }
1955
1956         die <<"EOF" if scalar @engines and !$config{dynamic_engines};
1957 ENGINES can only be used if configured with 'dynamic-engine'.
1958 This is usually a fault in a build.info file.
1959 EOF
1960         foreach (@engines) {
1961             my $library = cleanfile($buildd, $_, $blddir);
1962             if ($unified_info{rename}->{$library}) {
1963                 $library = $unified_info{rename}->{$library};
1964             }
1965             $unified_info{engines}->{$library} = 1;
1966         }
1967
1968         foreach (@engines_install) {
1969             my $library = cleanfile($buildd, $_, $blddir);
1970             if ($unified_info{rename}->{$library}) {
1971                 $library = $unified_info{rename}->{$library};
1972             }
1973             $unified_info{install}->{engines}->{$library} = 1;
1974         }
1975
1976         foreach (@scripts) {
1977             my $script = cleanfile($buildd, $_, $blddir);
1978             if ($unified_info{rename}->{$script}) {
1979                 $script = $unified_info{rename}->{$script};
1980             }
1981             $unified_info{scripts}->{$script} = 1;
1982         }
1983
1984         foreach (@scripts_install) {
1985             my $script = cleanfile($buildd, $_, $blddir);
1986             if ($unified_info{rename}->{$script}) {
1987                 $script = $unified_info{rename}->{$script};
1988             }
1989             $unified_info{install}->{scripts}->{$script} = 1;
1990         }
1991
1992         foreach (@extra) {
1993             my $extra = cleanfile($buildd, $_, $blddir);
1994             $unified_info{extra}->{$extra} = 1;
1995         }
1996
1997         foreach (@overrides) {
1998             my $override = cleanfile($buildd, $_, $blddir);
1999             $unified_info{overrides}->{$override} = 1;
2000         }
2001
2002         push @{$unified_info{rawlines}}, @rawlines;
2003
2004         unless ($disabled{shared}) {
2005             # Check sharednames.
2006             foreach (keys %sharednames) {
2007                 my $dest = cleanfile($buildd, $_, $blddir);
2008                 if ($unified_info{rename}->{$dest}) {
2009                     $dest = $unified_info{rename}->{$dest};
2010                 }
2011                 die "shared_name for $dest with multiple values: "
2012                     ,join(" ", @{$sharednames{$_}}),"\n"
2013                     if scalar @{$sharednames{$_}} > 1;
2014                 my $to = cleanfile($buildd, $sharednames{$_}->[0], $blddir);
2015                 die "shared_name found for a library $dest that isn't defined\n"
2016                     unless $unified_info{libraries}->{$dest};
2017                 die "shared_name for $dest with multiple values: "
2018                     ,$unified_info{sharednames}->{$dest}, ", ", $to
2019                     unless !defined($unified_info{sharednames}->{$dest})
2020                     or $unified_info{sharednames}->{$dest} eq $to;
2021                 $unified_info{sharednames}->{$dest} = $to;
2022             }
2023
2024             # Additionally, we set up sharednames for libraries that don't
2025             # have any, as themselves.  Only for libraries that aren't
2026             # explicitly static.
2027             foreach (grep !/\.a$/, keys %{$unified_info{libraries}}) {
2028                 if (!defined $unified_info{sharednames}->{$_}) {
2029                     $unified_info{sharednames}->{$_} = $_
2030                 }
2031             }
2032
2033             # Check that we haven't defined any library as both shared and
2034             # explicitly static.  That is forbidden.
2035             my @doubles = ();
2036             foreach (grep /\.a$/, keys %{$unified_info{libraries}}) {
2037                 (my $l = $_) =~ s/\.a$//;
2038                 push @doubles, $l if defined $unified_info{sharednames}->{$l};
2039             }
2040             die "these libraries are both explicitly static and shared:\n  ",
2041                 join(" ", @doubles), "\n"
2042                 if @doubles;
2043         }
2044
2045         foreach (keys %sources) {
2046             my $dest = $_;
2047             my $ddest = cleanfile($buildd, $_, $blddir);
2048             if ($unified_info{rename}->{$ddest}) {
2049                 $ddest = $unified_info{rename}->{$ddest};
2050             }
2051             foreach (@{$sources{$dest}}) {
2052                 my $s = cleanfile($sourced, $_, $blddir);
2053
2054                 # If it isn't in the source tree, we assume it's generated
2055                 # in the build tree
2056                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
2057                     $s = cleanfile($buildd, $_, $blddir);
2058                 }
2059                 # We recognise C++, C and asm files
2060                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2061                     my $o = $_;
2062                     $o =~ s/\.[csS]$/.o/; # C and assembler
2063                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2064                     $o = cleanfile($buildd, $o, $blddir);
2065                     $unified_info{sources}->{$ddest}->{$o} = -1;
2066                     $unified_info{sources}->{$o}->{$s} = -1;
2067                 } elsif ($s =~ /\.rc$/) {
2068                     # We also recognise resource files
2069                     my $o = $_;
2070                     $o =~ s/\.rc$/.res/; # Resource configuration
2071                     my $o = cleanfile($buildd, $o, $blddir);
2072                     $unified_info{sources}->{$ddest}->{$o} = -1;
2073                     $unified_info{sources}->{$o}->{$s} = -1;
2074                 } else {
2075                     $unified_info{sources}->{$ddest}->{$s} = 1;
2076                 }
2077             }
2078         }
2079
2080         foreach (keys %shared_sources) {
2081             my $dest = $_;
2082             my $ddest = cleanfile($buildd, $_, $blddir);
2083             if ($unified_info{rename}->{$ddest}) {
2084                 $ddest = $unified_info{rename}->{$ddest};
2085             }
2086             foreach (@{$shared_sources{$dest}}) {
2087                 my $s = cleanfile($sourced, $_, $blddir);
2088
2089                 # If it isn't in the source tree, we assume it's generated
2090                 # in the build tree
2091                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
2092                     $s = cleanfile($buildd, $_, $blddir);
2093                 }
2094
2095                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2096                     # We recognise C++, C and asm files
2097                     my $o = $_;
2098                     $o =~ s/\.[csS]$/.o/; # C and assembler
2099                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2100                     $o = cleanfile($buildd, $o, $blddir);
2101                     $unified_info{shared_sources}->{$ddest}->{$o} = -1;
2102                     $unified_info{sources}->{$o}->{$s} = -1;
2103                 } elsif ($s =~ /\.rc$/) {
2104                     # We also recognise resource files
2105                     my $o = $_;
2106                     $o =~ s/\.rc$/.res/; # Resource configuration
2107                     my $o = cleanfile($buildd, $o, $blddir);
2108                     $unified_info{shared_sources}->{$ddest}->{$o} = -1;
2109                     $unified_info{sources}->{$o}->{$s} = -1;
2110                 } elsif ($s =~ /\.ld$/) {
2111                     # We also recognise linker scripts (or corresponding)
2112                     # We know they are generated files
2113                     my $ld = cleanfile($buildd, $_, $blddir);
2114                     $unified_info{shared_sources}->{$ddest}->{$ld} = 1;
2115                 } else {
2116                     die "unrecognised source file type for shared library: $s\n";
2117                 }
2118             }
2119         }
2120
2121         foreach (keys %generate) {
2122             my $dest = $_;
2123             my $ddest = cleanfile($buildd, $_, $blddir);
2124             if ($unified_info{rename}->{$ddest}) {
2125                 $ddest = $unified_info{rename}->{$ddest};
2126             }
2127             die "more than one generator for $dest: "
2128                     ,join(" ", @{$generate{$_}}),"\n"
2129                     if scalar @{$generate{$_}} > 1;
2130             my @generator = split /\s+/, $generate{$dest}->[0];
2131             $generator[0] = cleanfile($sourced, $generator[0], $blddir),
2132             $unified_info{generate}->{$ddest} = [ @generator ];
2133         }
2134
2135         foreach (keys %depends) {
2136             my $dest = $_;
2137             my $ddest = $dest eq "" ? "" : cleanfile($sourced, $_, $blddir);
2138
2139             # If the destination doesn't exist in source, it can only be
2140             # a generated file in the build tree.
2141             if ($ddest ne "" && ($ddest eq $src_configdata || ! -f $ddest)) {
2142                 $ddest = cleanfile($buildd, $_, $blddir);
2143                 if ($unified_info{rename}->{$ddest}) {
2144                     $ddest = $unified_info{rename}->{$ddest};
2145                 }
2146             }
2147             foreach (@{$depends{$dest}}) {
2148                 my $d = cleanfile($sourced, $_, $blddir);
2149
2150                 # If we know it's generated, or assume it is because we can't
2151                 # find it in the source tree, we set file we depend on to be
2152                 # in the build tree rather than the source tree, and assume
2153                 # and that there are lines to build it in a BEGINRAW..ENDRAW
2154                 # section or in the Makefile template.
2155                 if ($d eq $src_configdata
2156                     || ! -f $d
2157                     || (grep { $d eq $_ }
2158                         map { cleanfile($srcdir, $_, $blddir) }
2159                         grep { /\.h$/ } keys %{$unified_info{generate}})) {
2160                     $d = cleanfile($buildd, $_, $blddir);
2161                 }
2162                 # Take note if the file to depend on is being renamed
2163                 # Take extra care with files ending with .a, they should
2164                 # be treated without that extension, and the extension
2165                 # should be added back after treatment.
2166                 $d =~ /(\.a)?$/;
2167                 my $e = $1 // "";
2168                 $d = $`;
2169                 if ($unified_info{rename}->{$d}) {
2170                     $d = $unified_info{rename}->{$d};
2171                 }
2172                 $d .= $e;
2173                 $unified_info{depends}->{$ddest}->{$d} = 1;
2174             }
2175         }
2176
2177         foreach (keys %includes) {
2178             my $dest = $_;
2179             my $ddest = cleanfile($sourced, $_, $blddir);
2180
2181             # If the destination doesn't exist in source, it can only be
2182             # a generated file in the build tree.
2183             if ($ddest eq $src_configdata || ! -f $ddest) {
2184                 $ddest = cleanfile($buildd, $_, $blddir);
2185                 if ($unified_info{rename}->{$ddest}) {
2186                     $ddest = $unified_info{rename}->{$ddest};
2187                 }
2188             }
2189             foreach (@{$includes{$dest}}) {
2190                 my $is = cleandir($sourced, $_, $blddir);
2191                 my $ib = cleandir($buildd, $_, $blddir);
2192                 push @{$unified_info{includes}->{$ddest}->{source}}, $is
2193                     unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
2194                 push @{$unified_info{includes}->{$ddest}->{build}}, $ib
2195                     unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
2196             }
2197         }
2198
2199         foreach (keys %defines) {
2200             my $dest = $_;
2201             my $ddest = cleanfile($sourced, $_, $blddir);
2202
2203             # If the destination doesn't exist in source, it can only be
2204             # a generated file in the build tree.
2205             if (! -f $ddest) {
2206                 $ddest = cleanfile($buildd, $_, $blddir);
2207                 if ($unified_info{rename}->{$ddest}) {
2208                     $ddest = $unified_info{rename}->{$ddest};
2209                 }
2210             }
2211             foreach (@{$defines{$dest}}) {
2212                 m|^([^=]*)(=.*)?$|;
2213                 die "0 length macro name not permitted\n" if $1 eq "";
2214                 die "$1 defined more than once\n"
2215                     if defined $unified_info{defines}->{$ddest}->{$1};
2216                 $unified_info{defines}->{$ddest}->{$1} = $2;
2217             }
2218         }
2219     }
2220
2221     my $ordinals_text = join(', ', sort keys %ordinals);
2222     warn <<"EOF" if $ordinals_text;
2223
2224 WARNING: ORDINALS were specified for $ordinals_text
2225 They are ignored and should be replaced with a combination of GENERATE,
2226 DEPEND and SHARED_SOURCE.
2227 EOF
2228
2229     # Massage the result
2230
2231     # If we depend on a header file or a perl module, add an inclusion of
2232     # its directory to allow smoothe inclusion
2233     foreach my $dest (keys %{$unified_info{depends}}) {
2234         next if $dest eq "";
2235         foreach my $d (keys %{$unified_info{depends}->{$dest}}) {
2236             next unless $d =~ /\.(h|pm)$/;
2237             my $i = dirname($d);
2238             my $spot =
2239                 $d eq "configdata.pm" || defined($unified_info{generate}->{$d})
2240                 ? 'build' : 'source';
2241             push @{$unified_info{includes}->{$dest}->{$spot}}, $i
2242                 unless grep { $_ eq $i } @{$unified_info{includes}->{$dest}->{$spot}};
2243         }
2244     }
2245
2246     # Go through all intermediary files and change their names to something that
2247     # reflects what they will be built for.  Note that for some source files,
2248     # this leads to duplicate object files because they are used multiple times.
2249     # the goal is to rename all object files according to this scheme:
2250     #    {productname}-{midfix}-{origobjname}.[o|res]
2251     # the {midfix} is a keyword indicating the type of product, which is mostly
2252     # valuable for libraries since they come in two forms.
2253     #
2254     # This also reorganises the {sources} and {shared_sources} so that the
2255     # former only contains ALL object files that are supposed to end up in
2256     # static libraries and programs, while the latter contains ALL object files
2257     # that are supposed to end up in shared libraries and DSOs.
2258     # The main reason for having two different source structures is to allow
2259     # the same name to be used for the static and the shared variants of a
2260     # library.
2261     {
2262         # Take copies so we don't get interference from added stuff
2263         my %unified_copy = ();
2264         foreach (('sources', 'shared_sources')) {
2265             $unified_copy{$_} = { %{$unified_info{$_}} }
2266                 if defined($unified_info{$_});
2267             delete $unified_info{$_};
2268         }
2269         foreach my $prodtype (('programs', 'libraries', 'engines', 'scripts')) {
2270             # $intent serves multi purposes:
2271             # - give a prefix for the new object files names
2272             # - in the case of libraries, rearrange the object files so static
2273             #   libraries use the 'sources' structure exclusively, while shared
2274             #   libraries use the 'shared_sources' structure exclusively.
2275             my $intent = {
2276                 programs  => { bin    => { src => [ 'sources' ],
2277                                            dst => 'sources' } },
2278                 libraries => { lib    => { src => [ 'sources' ],
2279                                            dst => 'sources' },
2280                                shlib  => { prodselect =>
2281                                                sub { grep !/\.a$/, @_ },
2282                                            src => [ 'sources',
2283                                                     'shared_sources' ],
2284                                            dst => 'shared_sources' } },
2285                 engines   => { dso    => { src => [ 'sources',
2286                                                     'shared_sources' ],
2287                                            dst => 'shared_sources' } },
2288                 scripts   => { script => { src => [ 'sources' ],
2289                                            dst => 'sources' } }
2290                } -> {$prodtype};
2291             foreach my $kind (keys %$intent) {
2292                 next if ($intent->{$kind}->{dst} eq 'shared_sources'
2293                              && $disabled{shared});
2294
2295                 my @src = @{$intent->{$kind}->{src}};
2296                 my $dst = $intent->{$kind}->{dst};
2297                 my $prodselect = $intent->{$kind}->{prodselect} // sub { @_ };
2298                 foreach my $prod ($prodselect->(keys %{$unified_info{$prodtype}})) {
2299                     # %prod_sources has all applicable objects as keys, and
2300                     # their corresponding sources as values
2301                     my %prod_sources =
2302                         map { $_ => [ keys %{$unified_copy{sources}->{$_}} ] }
2303                         map { keys %{$unified_copy{$_}->{$prod}} }
2304                         @src;
2305                     foreach (keys %prod_sources) {
2306                         # Only affect object files and resource files,
2307                         # the others simply get a new value
2308                         # (+1 instead of -1)
2309                         if ($_ =~ /\.(o|res)$/) {
2310                             (my $prodname = $prod) =~ s|\.a$||;
2311                             my $newobj =
2312                                 catfile(dirname($_),
2313                                         basename($prodname)
2314                                             . '-' . $kind
2315                                             . '-' . basename($_));
2316                             $unified_info{$dst}->{$prod}->{$newobj} = 1;
2317                             foreach my $src (@{$prod_sources{$_}}) {
2318                                 $unified_info{sources}->{$newobj}->{$src} = 1;
2319                             }
2320                             # Adjust dependencies
2321                             foreach my $deps (keys %{$unified_info{depends}->{$_}}) {
2322                                 $unified_info{depends}->{$_}->{$deps} = -1;
2323                                 $unified_info{depends}->{$newobj}->{$deps} = 1;
2324                             }
2325                             # Adjust includes
2326                             foreach my $k (('source', 'build')) {
2327                                 next unless
2328                                     defined($unified_info{includes}->{$_}->{$k});
2329                                 my @incs = @{$unified_info{includes}->{$_}->{$k}};
2330                                 $unified_info{includes}->{$newobj}->{$k} = [ @incs ];
2331                             }
2332                         } else {
2333                             $unified_info{$dst}->{$prod}->{$_} = 1;
2334                         }
2335                     }
2336                 }
2337             }
2338         }
2339     }
2340     # At this point, we have a number of sources with the value -1.  They
2341     # aren't part of the local build and are probably meant for a different
2342     # platform, and can therefore be cleaned away.  That happens when making
2343     # %unified_info more efficient below.
2344
2345     ### Make unified_info a bit more efficient
2346     # One level structures
2347     foreach (("programs", "libraries", "engines", "scripts", "extra", "overrides")) {
2348         $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
2349     }
2350     # Two level structures
2351     foreach my $l1 (("install", "sources", "shared_sources", "ldadd", "depends")) {
2352         foreach my $l2 (sort keys %{$unified_info{$l1}}) {
2353             my @items =
2354                 sort
2355                 grep { $unified_info{$l1}->{$l2}->{$_} > 0 }
2356                 keys %{$unified_info{$l1}->{$l2}};
2357             if (@items) {
2358                 $unified_info{$l1}->{$l2} = [ @items ];
2359             } else {
2360                 delete $unified_info{$l1}->{$l2};
2361             }
2362         }
2363     }
2364     # Defines
2365     foreach my $dest (sort keys %{$unified_info{defines}}) {
2366         $unified_info{defines}->{$dest}
2367             = [ map { $_.$unified_info{defines}->{$dest}->{$_} }
2368                 sort keys %{$unified_info{defines}->{$dest}} ];
2369     }
2370     # Includes
2371     foreach my $dest (sort keys %{$unified_info{includes}}) {
2372         if (defined($unified_info{includes}->{$dest}->{build})) {
2373             my @source_includes = ();
2374             @source_includes = ( @{$unified_info{includes}->{$dest}->{source}} )
2375                 if defined($unified_info{includes}->{$dest}->{source});
2376             $unified_info{includes}->{$dest} =
2377                 [ @{$unified_info{includes}->{$dest}->{build}} ];
2378             foreach my $inc (@source_includes) {
2379                 push @{$unified_info{includes}->{$dest}}, $inc
2380                     unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
2381             }
2382         } elsif (defined($unified_info{includes}->{$dest}->{source})) {
2383             $unified_info{includes}->{$dest} =
2384                 [ @{$unified_info{includes}->{$dest}->{source}} ];
2385         } else {
2386             delete $unified_info{includes}->{$dest};
2387         }
2388     }
2389
2390     # For convenience collect information regarding directories where
2391     # files are generated, those generated files and the end product
2392     # they end up in where applicable.  Then, add build rules for those
2393     # directories
2394     my %loopinfo = ( "lib" => [ @{$unified_info{libraries}} ],
2395                      "dso" => [ @{$unified_info{engines}} ],
2396                      "bin" => [ @{$unified_info{programs}} ],
2397                      "script" => [ @{$unified_info{scripts}} ] );
2398     foreach my $type (keys %loopinfo) {
2399         foreach my $product (@{$loopinfo{$type}}) {
2400             my %dirs = ();
2401             my $pd = dirname($product);
2402
2403             foreach (@{$unified_info{sources}->{$product} // []},
2404                      @{$unified_info{shared_sources}->{$product} // []}) {
2405                 my $d = dirname($_);
2406
2407                 # We don't want to create targets for source directories
2408                 # when building out of source
2409                 next if ($config{sourcedir} ne $config{builddir}
2410                              && $d =~ m|^\Q$config{sourcedir}\E|);
2411                 # We already have a "test" target, and the current directory
2412                 # is just silly to make a target for
2413                 next if $d eq "test" || $d eq ".";
2414
2415                 $dirs{$d} = 1;
2416                 push @{$unified_info{dirinfo}->{$d}->{deps}}, $_
2417                     if $d ne $pd;
2418             }
2419             foreach (keys %dirs) {
2420                 push @{$unified_info{dirinfo}->{$_}->{products}->{$type}},
2421                     $product;
2422             }
2423         }
2424     }
2425 }
2426
2427 # For the schemes that need it, we provide the old *_obj configs
2428 # from the *_asm_obj ones
2429 foreach (grep /_(asm|aux)_src$/, keys %target) {
2430     my $src = $_;
2431     (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
2432     $target{$obj} = $target{$src};
2433     $target{$obj} =~ s/\.[csS]\b/.o/g; # C and assembler
2434     $target{$obj} =~ s/\.(cc|cpp)\b/_cc.o/g; # C++
2435 }
2436
2437 # Write down our configuration where it fits #########################
2438
2439 print "Creating configdata.pm\n";
2440 open(OUT,">configdata.pm") || die "unable to create configdata.pm: $!\n";
2441 print OUT <<"EOF";
2442 #! $config{HASHBANGPERL}
2443
2444 package configdata;
2445
2446 use strict;
2447 use warnings;
2448
2449 use Exporter;
2450 #use vars qw(\@ISA \@EXPORT);
2451 our \@ISA = qw(Exporter);
2452 our \@EXPORT = qw(\%config \%target \%disabled \%withargs \%unified_info \@disablables);
2453
2454 EOF
2455 print OUT "our %config = (\n";
2456 foreach (sort keys %config) {
2457     if (ref($config{$_}) eq "ARRAY") {
2458         print OUT "  ", $_, " => [ ", join(", ",
2459                                            map { quotify("perl", $_) }
2460                                            @{$config{$_}}), " ],\n";
2461     } elsif (ref($config{$_}) eq "HASH") {
2462         print OUT "  ", $_, " => {";
2463         if (scalar keys %{$config{$_}} > 0) {
2464             print OUT "\n";
2465             foreach my $key (sort keys %{$config{$_}}) {
2466                 print OUT "      ",
2467                     join(" => ",
2468                          quotify("perl", $key),
2469                          defined $config{$_}->{$key}
2470                              ? quotify("perl", $config{$_}->{$key})
2471                              : "undef");
2472                 print OUT ",\n";
2473             }
2474             print OUT "  ";
2475         }
2476         print OUT "},\n";
2477     } else {
2478         print OUT "  ", $_, " => ", quotify("perl", $config{$_}), ",\n"
2479     }
2480 }
2481 print OUT <<"EOF";
2482 );
2483
2484 EOF
2485 print OUT "our %target = (\n";
2486 foreach (sort keys %target) {
2487     if (ref($target{$_}) eq "ARRAY") {
2488         print OUT "  ", $_, " => [ ", join(", ",
2489                                            map { quotify("perl", $_) }
2490                                            @{$target{$_}}), " ],\n";
2491     } else {
2492         print OUT "  ", $_, " => ", quotify("perl", $target{$_}), ",\n"
2493     }
2494 }
2495 print OUT <<"EOF";
2496 );
2497
2498 EOF
2499 print OUT "our \%available_protocols = (\n";
2500 print OUT "  tls => [ ", join(", ", map { quotify("perl", $_) } @tls), " ],\n";
2501 print OUT "  dtls => [ ", join(", ", map { quotify("perl", $_) } @dtls), " ],\n";
2502 print OUT <<"EOF";
2503 );
2504
2505 EOF
2506 print OUT "our \@disablables = (\n";
2507 foreach (@disablables) {
2508     print OUT "  ", quotify("perl", $_), ",\n";
2509 }
2510 print OUT <<"EOF";
2511 );
2512
2513 EOF
2514 print OUT "our \%disabled = (\n";
2515 foreach (sort keys %disabled) {
2516     print OUT "  ", quotify("perl", $_), " => ", quotify("perl", $disabled{$_}), ",\n";
2517 }
2518 print OUT <<"EOF";
2519 );
2520
2521 EOF
2522 print OUT "our %withargs = (\n";
2523 foreach (sort keys %withargs) {
2524     if (ref($withargs{$_}) eq "ARRAY") {
2525         print OUT "  ", $_, " => [ ", join(", ",
2526                                            map { quotify("perl", $_) }
2527                                            @{$withargs{$_}}), " ],\n";
2528     } else {
2529         print OUT "  ", $_, " => ", quotify("perl", $withargs{$_}), ",\n"
2530     }
2531 }
2532 print OUT <<"EOF";
2533 );
2534
2535 EOF
2536 if ($builder eq "unified") {
2537     my $recurse;
2538     $recurse = sub {
2539         my $indent = shift;
2540         foreach (@_) {
2541             if (ref $_ eq "ARRAY") {
2542                 print OUT " "x$indent, "[\n";
2543                 foreach (@$_) {
2544                     $recurse->($indent + 4, $_);
2545                 }
2546                 print OUT " "x$indent, "],\n";
2547             } elsif (ref $_ eq "HASH") {
2548                 my %h = %$_;
2549                 print OUT " "x$indent, "{\n";
2550                 foreach (sort keys %h) {
2551                     if (ref $h{$_} eq "") {
2552                         print OUT " "x($indent + 4), quotify("perl", $_), " => ", quotify("perl", $h{$_}), ",\n";
2553                     } else {
2554                         print OUT " "x($indent + 4), quotify("perl", $_), " =>\n";
2555                         $recurse->($indent + 8, $h{$_});
2556                     }
2557                 }
2558                 print OUT " "x$indent, "},\n";
2559             } else {
2560                 print OUT " "x$indent, quotify("perl", $_), ",\n";
2561             }
2562         }
2563     };
2564     print OUT "our %unified_info = (\n";
2565     foreach (sort keys %unified_info) {
2566         if (ref $unified_info{$_} eq "") {
2567             print OUT " "x4, quotify("perl", $_), " => ", quotify("perl", $unified_info{$_}), ",\n";
2568         } else {
2569             print OUT " "x4, quotify("perl", $_), " =>\n";
2570             $recurse->(8, $unified_info{$_});
2571         }
2572     }
2573     print OUT <<"EOF";
2574 );
2575
2576 EOF
2577 }
2578 print OUT
2579     "# The following data is only used when this files is use as a script\n";
2580 print OUT "my \@makevars = (\n";
2581 foreach (sort keys %user) {
2582     print OUT "    '",$_,"',\n";
2583 }
2584 print OUT ");\n";
2585 print OUT "my \%disabled_info = (\n";
2586 foreach my $what (sort keys %disabled_info) {
2587     print OUT "    '$what' => {\n";
2588     foreach my $info (sort keys %{$disabled_info{$what}}) {
2589         if (ref $disabled_info{$what}->{$info} eq 'ARRAY') {
2590             print OUT "        $info => [ ",
2591                 join(', ', map { "'$_'" } @{$disabled_info{$what}->{$info}}),
2592                 " ],\n";
2593         } else {
2594             print OUT "        $info => '", $disabled_info{$what}->{$info},
2595                 "',\n";
2596         }
2597     }
2598     print OUT "    },\n";
2599 }
2600 print OUT ");\n";
2601 print OUT 'my @user_crossable = qw( ', join (' ', @user_crossable), " );\n";
2602 print OUT << 'EOF';
2603 # If run directly, we can give some answers, and even reconfigure
2604 unless (caller) {
2605     use Getopt::Long;
2606     use File::Spec::Functions;
2607     use File::Basename;
2608     use Pod::Usage;
2609
2610     my $here = dirname($0);
2611
2612     my $dump = undef;
2613     my $cmdline = undef;
2614     my $options = undef;
2615     my $target = undef;
2616     my $envvars = undef;
2617     my $makevars = undef;
2618     my $buildparams = undef;
2619     my $reconf = undef;
2620     my $verbose = undef;
2621     my $help = undef;
2622     my $man = undef;
2623     GetOptions('dump|d'                 => \$dump,
2624                'command-line|c'         => \$cmdline,
2625                'options|o'              => \$options,
2626                'target|t'               => \$target,
2627                'environment|e'          => \$envvars,
2628                'make-variables|m'       => \$makevars,
2629                'build-parameters|b'     => \$buildparams,
2630                'reconfigure|reconf|r'   => \$reconf,
2631                'verbose|v'              => \$verbose,
2632                'help'                   => \$help,
2633                'man'                    => \$man)
2634         or die "Errors in command line arguments\n";
2635
2636     unless ($dump || $cmdline || $options || $target || $envvars || $makevars
2637             || $buildparams || $reconf || $verbose || $help || $man) {
2638         print STDERR <<"_____";
2639 You must give at least one option.
2640 For more information, do '$0 --help'
2641 _____
2642         exit(2);
2643     }
2644
2645     if ($help) {
2646         pod2usage(-exitval => 0,
2647                   -verbose => 1);
2648     }
2649     if ($man) {
2650         pod2usage(-exitval => 0,
2651                   -verbose => 2);
2652     }
2653     if ($dump || $cmdline) {
2654         print "\nCommand line (with current working directory = $here):\n\n";
2655         print '    ',join(' ',
2656                           $config{PERL},
2657                           catfile($config{sourcedir}, 'Configure'),
2658                           @{$config{perlargv}}), "\n";
2659         print "\nPerl information:\n\n";
2660         print '    ',$config{perl_cmd},"\n";
2661         print '    ',$config{perl_version},' for ',$config{perl_archname},"\n";
2662     }
2663     if ($dump || $options) {
2664         my $longest = 0;
2665         my $longest2 = 0;
2666         foreach my $what (@disablables) {
2667             $longest = length($what) if $longest < length($what);
2668             $longest2 = length($disabled{$what})
2669                 if $disabled{$what} && $longest2 < length($disabled{$what});
2670         }
2671         print "\nEnabled features:\n\n";
2672         foreach my $what (@disablables) {
2673             print "    $what\n" unless $disabled{$what};
2674         }
2675         print "\nDisabled features:\n\n";
2676         foreach my $what (@disablables) {
2677             if ($disabled{$what}) {
2678                 print "    $what", ' ' x ($longest - length($what) + 1),
2679                     "[$disabled{$what}]", ' ' x ($longest2 - length($disabled{$what}) + 1);
2680                 print $disabled_info{$what}->{macro}
2681                     if $disabled_info{$what}->{macro};
2682                 print ' (skip ',
2683                     join(', ', @{$disabled_info{$what}->{skipped}}),
2684                     ')'
2685                     if $disabled_info{$what}->{skipped};
2686                 print "\n";
2687             }
2688         }
2689     }
2690     if ($dump || $target) {
2691         print "\nConfig target attributes:\n\n";
2692         foreach (sort keys %target) {
2693             next if $_ =~ m|^_| || $_ eq 'template';
2694             my $quotify = sub {
2695                 map { (my $x = $_) =~ s|([\\\$\@"])|\\$1|g; "\"$x\""} @_;
2696             };
2697             print '    ', $_, ' => ';
2698             if (ref($target{$_}) eq "ARRAY") {
2699                 print '[ ', join(', ', $quotify->(@{$target{$_}})), " ],\n";
2700             } else {
2701                 print $quotify->($target{$_}), ",\n"
2702             }
2703         }
2704     }
2705     if ($dump || $envvars) {
2706         print "\nRecorded environment:\n\n";
2707         foreach (sort keys %{$config{perlenv}}) {
2708             print '    ',$_,' = ',($config{perlenv}->{$_} || ''),"\n";
2709         }
2710     }
2711     if ($dump || $makevars) {
2712         print "\nMakevars:\n\n";
2713         foreach my $var (@makevars) {
2714             my $prefix = '';
2715             $prefix = $config{CROSS_COMPILE}
2716                 if grep { $var eq $_ } @user_crossable;
2717             $prefix //= '';
2718             print '    ',$var,' ' x (16 - length $var),'= ',
2719                 (ref $config{$var} eq 'ARRAY'
2720                  ? join(' ', @{$config{$var}})
2721                  : $prefix.$config{$var}),
2722                 "\n"
2723                 if defined $config{$var};
2724         }
2725
2726         my @buildfile = ($config{builddir}, $config{build_file});
2727         unshift @buildfile, $here
2728             unless file_name_is_absolute($config{builddir});
2729         my $buildfile = canonpath(catdir(@buildfile));
2730         print <<"_____";
2731
2732 NOTE: These variables only represent the configuration view.  The build file
2733 template may have processed these variables further, please have a look at the
2734 build file for more exact data:
2735     $buildfile
2736 _____
2737     }
2738     if ($dump || $buildparams) {
2739         my @buildfile = ($config{builddir}, $config{build_file});
2740         unshift @buildfile, $here
2741             unless file_name_is_absolute($config{builddir});
2742         print "\nbuild file:\n\n";
2743         print "    ", canonpath(catfile(@buildfile)),"\n";
2744
2745         print "\nbuild file templates:\n\n";
2746         foreach (@{$config{build_file_templates}}) {
2747             my @tmpl = ($_);
2748             unshift @tmpl, $here
2749                 unless file_name_is_absolute($config{sourcedir});
2750             print '    ',canonpath(catfile(@tmpl)),"\n";
2751         }
2752     }
2753     if ($reconf) {
2754         if ($verbose) {
2755             print 'Reconfiguring with: ', join(' ',@{$config{perlargv}}), "\n";
2756             foreach (sort keys %{$config{perlenv}}) {
2757                 print '    ',$_,' = ',($config{perlenv}->{$_} || ""),"\n";
2758             }
2759         }
2760
2761         chdir $here;
2762         exec $^X,catfile($config{sourcedir}, 'Configure'),'reconf';
2763     }
2764 }
2765
2766 1;
2767
2768 __END__
2769
2770 =head1 NAME
2771
2772 configdata.pm - configuration data for OpenSSL builds
2773
2774 =head1 SYNOPSIS
2775
2776 Interactive:
2777
2778   perl configdata.pm [options]
2779
2780 As data bank module:
2781
2782   use configdata;
2783
2784 =head1 DESCRIPTION
2785
2786 This module can be used in two modes, interactively and as a module containing
2787 all the data recorded by OpenSSL's Configure script.
2788
2789 When used interactively, simply run it as any perl script, with at least one
2790 option, and you will get the information you ask for.  See L</OPTIONS> below.
2791
2792 When loaded as a module, you get a few databanks with useful information to
2793 perform build related tasks.  The databanks are:
2794
2795     %config             Configured things.
2796     %target             The OpenSSL config target with all inheritances
2797                         resolved.
2798     %disabled           The features that are disabled.
2799     @disablables        The list of features that can be disabled.
2800     %withargs           All data given through --with-THING options.
2801     %unified_info       All information that was computed from the build.info
2802                         files.
2803
2804 =head1 OPTIONS
2805
2806 =over 4
2807
2808 =item B<--help>
2809
2810 Print a brief help message and exit.
2811
2812 =item B<--man>
2813
2814 Print the manual page and exit.
2815
2816 =item B<--dump> | B<-d>
2817
2818 Print all relevant configuration data.  This is equivalent to B<--command-line>
2819 B<--options> B<--target> B<--environment> B<--make-variables>
2820 B<--build-parameters>.
2821
2822 =item B<--command-line> | B<-c>
2823
2824 Print the current configuration command line.
2825
2826 =item B<--options> | B<-o>
2827
2828 Print the features, both enabled and disabled, and display defined macro and
2829 skipped directories where applicable.
2830
2831 =item B<--target> | B<-t>
2832
2833 Print the config attributes for this config target.
2834
2835 =item B<--environment> | B<-e>
2836
2837 Print the environment variables and their values at the time of configuration.
2838
2839 =item B<--make-variables> | B<-m>
2840
2841 Print the main make variables generated in the current configuration
2842
2843 =item B<--build-parameters> | B<-b>
2844
2845 Print the build parameters, i.e. build file and build file templates.
2846
2847 =item B<--reconfigure> | B<--reconf> | B<-r>
2848
2849 Redo the configuration.
2850
2851 =item B<--verbose> | B<-v>
2852
2853 Verbose output.
2854
2855 =back
2856
2857 =cut
2858
2859 EOF
2860 close(OUT);
2861 if ($builder_platform eq 'unix') {
2862     my $mode = (0755 & ~umask);
2863     chmod $mode, 'configdata.pm'
2864         or warn sprintf("WARNING: Couldn't change mode for 'configdata.pm' to 0%03o: %s\n",$mode,$!);
2865 }
2866
2867 my %builders = (
2868     unified => sub {
2869         print 'Creating ',$target{build_file},"\n";
2870         run_dofile(catfile($blddir, $target{build_file}),
2871                    @{$config{build_file_templates}});
2872     },
2873     );
2874
2875 $builders{$builder}->($builder_platform, @builder_opts);
2876
2877 $SIG{__DIE__} = $orig_death_handler;
2878
2879 print <<"EOF" if ($disabled{threads} eq "unavailable");
2880
2881 The library could not be configured for supporting multi-threaded
2882 applications as the compiler options required on this system are not known.
2883 See file INSTALL for details if you need multi-threading.
2884 EOF
2885
2886 print <<"EOF" if ($no_shared_warn);
2887
2888 The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
2889 platform, so we will pretend you gave the option 'no-pic', which also disables
2890 'shared' and 'dynamic-engine'.  If you know how to implement shared libraries
2891 or position independent code, please let us know (but please first make sure
2892 you have tried with a current version of OpenSSL).
2893 EOF
2894
2895 print <<"EOF";
2896
2897 **********************************************************************
2898 ***                                                                ***
2899 ***   OpenSSL has been successfully configured                     ***
2900 ***                                                                ***
2901 ***   If you encounter a problem while building, please open an    ***
2902 ***   issue on GitHub <https://github.com/openssl/openssl/issues>  ***
2903 ***   and include the output from the following command:           ***
2904 ***                                                                ***
2905 ***       perl configdata.pm --dump                                ***
2906 ***                                                                ***
2907 ***   (If you are new to OpenSSL, you might want to consult the    ***
2908 ***   'Troubleshooting' section in the INSTALL file first)         ***
2909 ***                                                                ***
2910 **********************************************************************
2911 EOF
2912
2913 exit(0);
2914
2915 ######################################################################
2916 #
2917 # Helpers and utility functions
2918 #
2919
2920 # Death handler, to print a helpful message in case of failure #######
2921 #
2922 sub death_handler {
2923     die @_ if $^S;              # To prevent the added message in eval blocks
2924     my $build_file = $target{build_file} // "build file";
2925     my @message = ( <<"_____", @_ );
2926
2927 Failure!  $build_file wasn't produced.
2928 Please read INSTALL and associated NOTES files.  You may also have to look over
2929 your available compiler tool chain or change your configuration.
2930
2931 _____
2932
2933     # Dying is terminal, so it's ok to reset the signal handler here.
2934     $SIG{__DIE__} = $orig_death_handler;
2935     die @message;
2936 }
2937
2938 # Configuration file reading #########################################
2939
2940 # Note: All of the helper functions are for lazy evaluation.  They all
2941 # return a CODE ref, which will return the intended value when evaluated.
2942 # Thus, whenever there's mention of a returned value, it's about that
2943 # intended value.
2944
2945 # Helper function to implement conditional inheritance depending on the
2946 # value of $disabled{asm}.  Used in inherit_from values as follows:
2947 #
2948 #      inherit_from => [ "template", asm("asm_tmpl") ]
2949 #
2950 sub asm {
2951     my @x = @_;
2952     sub {
2953         $disabled{asm} ? () : @x;
2954     }
2955 }
2956
2957 # Helper function to implement conditional value variants, with a default
2958 # plus additional values based on the value of $config{build_type}.
2959 # Arguments are given in hash table form:
2960 #
2961 #       picker(default => "Basic string: ",
2962 #              debug   => "debug",
2963 #              release => "release")
2964 #
2965 # When configuring with --debug, the resulting string will be
2966 # "Basic string: debug", and when not, it will be "Basic string: release"
2967 #
2968 # This can be used to create variants of sets of flags according to the
2969 # build type:
2970 #
2971 #       cflags => picker(default => "-Wall",
2972 #                        debug   => "-g -O0",
2973 #                        release => "-O3")
2974 #
2975 sub picker {
2976     my %opts = @_;
2977     return sub { add($opts{default} || (),
2978                      $opts{$config{build_type}} || ())->(); }
2979 }
2980
2981 # Helper function to combine several values of different types into one.
2982 # This is useful if you want to combine a string with the result of a
2983 # lazy function, such as:
2984 #
2985 #       cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
2986 #
2987 sub combine {
2988     my @stuff = @_;
2989     return sub { add(@stuff)->(); }
2990 }
2991
2992 # Helper function to implement conditional values depending on the value
2993 # of $disabled{threads}.  Can be used as follows:
2994 #
2995 #       cflags => combine("-Wall", threads("-pthread"))
2996 #
2997 sub threads {
2998     my @flags = @_;
2999     return sub { add($disabled{threads} ? () : @flags)->(); }
3000 }
3001
3002 sub shared {
3003     my @flags = @_;
3004     return sub { add($disabled{shared} ? () : @flags)->(); }
3005 }
3006
3007 our $add_called = 0;
3008 # Helper function to implement adding values to already existing configuration
3009 # values.  It handles elements that are ARRAYs, CODEs and scalars
3010 sub _add {
3011     my $separator = shift;
3012
3013     # If there's any ARRAY in the collection of values OR the separator
3014     # is undef, we will return an ARRAY of combined values, otherwise a
3015     # string of joined values with $separator as the separator.
3016     my $found_array = !defined($separator);
3017
3018     my @values =
3019         map {
3020             my $res = $_;
3021             while (ref($res) eq "CODE") {
3022                 $res = $res->();
3023             }
3024             if (defined($res)) {
3025                 if (ref($res) eq "ARRAY") {
3026                     $found_array = 1;
3027                     @$res;
3028                 } else {
3029                     $res;
3030                 }
3031             } else {
3032                 ();
3033             }
3034     } (@_);
3035
3036     $add_called = 1;
3037
3038     if ($found_array) {
3039         [ @values ];
3040     } else {
3041         join($separator, grep { defined($_) && $_ ne "" } @values);
3042     }
3043 }
3044 sub add_before {
3045     my $separator = " ";
3046     if (ref($_[$#_]) eq "HASH") {
3047         my $opts = pop;
3048         $separator = $opts->{separator};
3049     }
3050     my @x = @_;
3051     sub { _add($separator, @x, @_) };
3052 }
3053 sub add {
3054     my $separator = " ";
3055     if (ref($_[$#_]) eq "HASH") {
3056         my $opts = pop;
3057         $separator = $opts->{separator};
3058     }
3059     my @x = @_;
3060     sub { _add($separator, @_, @x) };
3061 }
3062
3063 sub read_eval_file {
3064     my $fname = shift;
3065     my $content;
3066     my @result;
3067
3068     open F, "< $fname" or die "Can't open '$fname': $!\n";
3069     {
3070         undef local $/;
3071         $content = <F>;
3072     }
3073     close F;
3074     {
3075         local $@;
3076
3077         @result = ( eval $content );
3078         warn $@ if $@;
3079     }
3080     return wantarray ? @result : $result[0];
3081 }
3082
3083 # configuration reader, evaluates the input file as a perl script and expects
3084 # it to fill %targets with target configurations.  Those are then added to
3085 # %table.
3086 sub read_config {
3087     my $fname = shift;
3088     my %targets;
3089
3090     {
3091         # Protect certain tables from tampering
3092         local %table = ();
3093
3094         %targets = read_eval_file($fname);
3095     }
3096     my %preexisting = ();
3097     foreach (sort keys %targets) {
3098         $preexisting{$_} = 1 if $table{$_};
3099     }
3100     die <<"EOF",
3101 The following config targets from $fname
3102 shadow pre-existing config targets with the same name:
3103 EOF
3104         map { "  $_\n" } sort keys %preexisting
3105         if %preexisting;
3106
3107
3108     # For each target, check that it's configured with a hash table.
3109     foreach (keys %targets) {
3110         if (ref($targets{$_}) ne "HASH") {
3111             if (ref($targets{$_}) eq "") {
3112                 warn "Deprecated target configuration for $_, ignoring...\n";
3113             } else {
3114                 warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
3115             }
3116             delete $targets{$_};
3117         } else {
3118             $targets{$_}->{_conf_fname_int} = add([ $fname ]);
3119         }
3120     }
3121
3122     %table = (%table, %targets);
3123
3124 }
3125
3126 # configuration resolver.  Will only resolve all the lazy evaluation
3127 # codeblocks for the chosen target and all those it inherits from,
3128 # recursively
3129 sub resolve_config {
3130     my $target = shift;
3131     my @breadcrumbs = @_;
3132
3133 #    my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
3134
3135     if (grep { $_ eq $target } @breadcrumbs) {
3136         die "inherit_from loop!  target backtrace:\n  "
3137             ,$target,"\n  ",join("\n  ", @breadcrumbs),"\n";
3138     }
3139
3140     if (!defined($table{$target})) {
3141         warn "Warning! target $target doesn't exist!\n";
3142         return ();
3143     }
3144     # Recurse through all inheritances.  They will be resolved on the
3145     # fly, so when this operation is done, they will all just be a
3146     # bunch of attributes with string values.
3147     # What we get here, though, are keys with references to lists of
3148     # the combined values of them all.  We will deal with lists after
3149     # this stage is done.
3150     my %combined_inheritance = ();
3151     if ($table{$target}->{inherit_from}) {
3152         my @inherit_from =
3153             map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
3154         foreach (@inherit_from) {
3155             my %inherited_config = resolve_config($_, $target, @breadcrumbs);
3156
3157             # 'template' is a marker that's considered private to
3158             # the config that had it.
3159             delete $inherited_config{template};
3160
3161             foreach (keys %inherited_config) {
3162                 if (!$combined_inheritance{$_}) {
3163                     $combined_inheritance{$_} = [];
3164                 }
3165                 push @{$combined_inheritance{$_}}, $inherited_config{$_};
3166             }
3167         }
3168     }
3169
3170     # We won't need inherit_from in this target any more, since we've
3171     # resolved all the inheritances that lead to this
3172     delete $table{$target}->{inherit_from};
3173
3174     # Now is the time to deal with those lists.  Here's the place to
3175     # decide what shall be done with those lists, all based on the
3176     # values of the target we're currently dealing with.
3177     # - If a value is a coderef, it will be executed with the list of
3178     #   inherited values as arguments.
3179     # - If the corresponding key doesn't have a value at all or is the
3180     #   empty string, the inherited value list will be run through the
3181     #   default combiner (below), and the result becomes this target's
3182     #   value.
3183     # - Otherwise, this target's value is assumed to be a string that
3184     #   will simply override the inherited list of values.
3185     my $default_combiner = add();
3186
3187     my %all_keys =
3188         map { $_ => 1 } (keys %combined_inheritance,
3189                          keys %{$table{$target}});
3190
3191     sub process_values {
3192         my $object    = shift;
3193         my $inherited = shift;  # Always a [ list ]
3194         my $target    = shift;
3195         my $entry     = shift;
3196
3197         $add_called = 0;
3198
3199         while(ref($object) eq "CODE") {
3200             $object = $object->(@$inherited);
3201         }
3202         if (!defined($object)) {
3203             return ();
3204         }
3205         elsif (ref($object) eq "ARRAY") {
3206             local $add_called;  # To make sure recursive calls don't affect it
3207             return [ map { process_values($_, $inherited, $target, $entry) }
3208                      @$object ];
3209         } elsif (ref($object) eq "") {
3210             return $object;
3211         } else {
3212             die "cannot handle reference type ",ref($object)
3213                 ," found in target ",$target," -> ",$entry,"\n";
3214         }
3215     }
3216
3217     foreach (sort keys %all_keys) {
3218         my $previous = $combined_inheritance{$_};
3219
3220         # Current target doesn't have a value for the current key?
3221         # Assign it the default combiner, the rest of this loop body
3222         # will handle it just like any other coderef.
3223         if (!exists $table{$target}->{$_}) {
3224             $table{$target}->{$_} = $default_combiner;
3225         }
3226
3227         $table{$target}->{$_} = process_values($table{$target}->{$_},
3228                                                $combined_inheritance{$_},
3229                                                $target, $_);
3230         unless(defined($table{$target}->{$_})) {
3231             delete $table{$target}->{$_};
3232         }
3233 #        if ($extra_checks &&
3234 #            $previous && !($add_called ||  $previous ~~ $table{$target}->{$_})) {
3235 #            warn "$_ got replaced in $target\n";
3236 #        }
3237     }
3238
3239     # Finally done, return the result.
3240     return %{$table{$target}};
3241 }
3242
3243 sub usage
3244         {
3245         print STDERR $usage;
3246         print STDERR "\npick os/compiler from:\n";
3247         my $j=0;
3248         my $i;
3249         my $k=0;
3250         foreach $i (sort keys %table)
3251                 {
3252                 next if $table{$i}->{template};
3253                 next if $i =~ /^debug/;
3254                 $k += length($i) + 1;
3255                 if ($k > 78)
3256                         {
3257                         print STDERR "\n";
3258                         $k=length($i);
3259                         }
3260                 print STDERR $i . " ";
3261                 }
3262         foreach $i (sort keys %table)
3263                 {
3264                 next if $table{$i}->{template};
3265                 next if $i !~ /^debug/;
3266                 $k += length($i) + 1;
3267                 if ($k > 78)
3268                         {
3269                         print STDERR "\n";
3270                         $k=length($i);
3271                         }
3272                 print STDERR $i . " ";
3273                 }
3274         print STDERR "\n\nNOTE: If in doubt, on Unix-ish systems use './config'.\n";
3275         exit(1);
3276         }
3277
3278 sub run_dofile
3279 {
3280     my $out = shift;
3281     my @templates = @_;
3282
3283     unlink $out || warn "Can't remove $out, $!"
3284         if -f $out;
3285     foreach (@templates) {
3286         die "Can't open $_, $!" unless -f $_;
3287     }
3288     my $perlcmd = (quotify("maybeshell", $config{PERL}))[0];
3289     my $cmd = "$perlcmd \"-I.\" \"-Mconfigdata\" \"$dofile\" -o\"Configure\" \"".join("\" \"",@templates)."\" > \"$out.new\"";
3290     #print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
3291     system($cmd);
3292     exit 1 if $? != 0;
3293     rename("$out.new", $out) || die "Can't rename $out.new, $!";
3294 }
3295
3296 sub compiler_predefined {
3297     state %predefined;
3298     my $cc = shift;
3299
3300     return () if $^O eq 'VMS';
3301
3302     die 'compiler_predefined called without a compiler command'
3303         unless $cc;
3304
3305     if (! $predefined{$cc}) {
3306
3307         $predefined{$cc} = {};
3308
3309         # collect compiler pre-defines from gcc or gcc-alike...
3310         open(PIPE, "$cc -dM -E -x c /dev/null 2>&1 |");
3311         while (my $l = <PIPE>) {
3312             $l =~ m/^#define\s+(\w+(?:\(\w+\))?)(?:\s+(.+))?/ or last;
3313             $predefined{$cc}->{$1} = $2 // '';
3314         }
3315         close(PIPE);
3316     }
3317
3318     return %{$predefined{$cc}};
3319 }
3320
3321 sub which
3322 {
3323     my ($name)=@_;
3324
3325     if (eval { require IPC::Cmd; 1; }) {
3326         IPC::Cmd->import();
3327         return scalar IPC::Cmd::can_run($name);
3328     } else {
3329         # if there is $directories component in splitpath,
3330         # then it's not something to test with $PATH...
3331         return $name if (File::Spec->splitpath($name))[1];
3332
3333         foreach (File::Spec->path()) {
3334             my $fullpath = catfile($_, "$name$target{exe_extension}");
3335             if (-f $fullpath and -x $fullpath) {
3336                 return $fullpath;
3337             }
3338         }
3339     }
3340 }
3341
3342 sub env
3343 {
3344     my $name = shift;
3345     my %opts = @_;
3346
3347     unless ($opts{cacheonly}) {
3348         # Note that if $ENV{$name} doesn't exist or is undefined,
3349         # $config{perlenv}->{$name} will be created with the value
3350         # undef.  This is intentional.
3351
3352         $config{perlenv}->{$name} = $ENV{$name}
3353             if ! exists $config{perlenv}->{$name};
3354     }
3355     return $config{perlenv}->{$name};
3356 }
3357
3358 # Configuration printer ##############################################
3359
3360 sub print_table_entry
3361 {
3362     local $now_printing = shift;
3363     my %target = resolve_config($now_printing);
3364     my $type = shift;
3365
3366     # Don't print the templates
3367     return if $target{template};
3368
3369     my @sequence = (
3370         "sys_id",
3371         "cpp",
3372         "cppflags",
3373         "defines",
3374         "includes",
3375         "cc",
3376         "cflags",
3377         "unistd",
3378         "ld",
3379         "lflags",
3380         "loutflag",
3381         "ex_libs",
3382         "bn_ops",
3383         "apps_aux_src",
3384         "cpuid_asm_src",
3385         "uplink_aux_src",
3386         "bn_asm_src",
3387         "ec_asm_src",
3388         "des_asm_src",
3389         "aes_asm_src",
3390         "bf_asm_src",
3391         "md5_asm_src",
3392         "cast_asm_src",
3393         "sha1_asm_src",
3394         "rc4_asm_src",
3395         "rmd160_asm_src",
3396         "rc5_asm_src",
3397         "wp_asm_src",
3398         "cmll_asm_src",
3399         "modes_asm_src",
3400         "padlock_asm_src",
3401         "chacha_asm_src",
3402         "poly1035_asm_src",
3403         "thread_scheme",
3404         "perlasm_scheme",
3405         "dso_scheme",
3406         "shared_target",
3407         "shared_cflag",
3408         "shared_defines",
3409         "shared_ldflag",
3410         "shared_rcflag",
3411         "shared_extension",
3412         "dso_extension",
3413         "obj_extension",
3414         "exe_extension",
3415         "ranlib",
3416         "ar",
3417         "arflags",
3418         "aroutflag",
3419         "rc",
3420         "rcflags",
3421         "rcoutflag",
3422         "mt",
3423         "mtflags",
3424         "mtinflag",
3425         "mtoutflag",
3426         "multilib",
3427         "build_scheme",
3428         );
3429
3430     if ($type eq "TABLE") {
3431         print "\n";
3432         print "*** $now_printing\n";
3433         foreach (@sequence) {
3434             if (ref($target{$_}) eq "ARRAY") {
3435                 printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
3436             } else {
3437                 printf "\$%-12s = %s\n", $_, $target{$_};
3438             }
3439         }
3440     } elsif ($type eq "HASH") {
3441         my $largest =
3442             length((sort { length($a) <=> length($b) } @sequence)[-1]);
3443         print "    '$now_printing' => {\n";
3444         foreach (@sequence) {
3445             if ($target{$_}) {
3446                 if (ref($target{$_}) eq "ARRAY") {
3447                     print "      '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
3448                 } else {
3449                     print "      '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
3450                 }
3451             }
3452         }
3453         print "    },\n";
3454     }
3455 }
3456
3457 # Utility routines ###################################################
3458
3459 # On VMS, if the given file is a logical name, File::Spec::Functions
3460 # will consider it an absolute path.  There are cases when we want a
3461 # purely syntactic check without checking the environment.
3462 sub isabsolute {
3463     my $file = shift;
3464
3465     # On non-platforms, we just use file_name_is_absolute().
3466     return file_name_is_absolute($file) unless $^O eq "VMS";
3467
3468     # If the file spec includes a device or a directory spec,
3469     # file_name_is_absolute() is perfectly safe.
3470     return file_name_is_absolute($file) if $file =~ m|[:\[]|;
3471
3472     # Here, we know the given file spec isn't absolute
3473     return 0;
3474 }
3475
3476 # Makes a directory absolute and cleans out /../ in paths like foo/../bar
3477 # On some platforms, this uses rel2abs(), while on others, realpath() is used.
3478 # realpath() requires that at least all path components except the last is an
3479 # existing directory.  On VMS, the last component of the directory spec must
3480 # exist.
3481 sub absolutedir {
3482     my $dir = shift;
3483
3484     # realpath() is quite buggy on VMS.  It uses LIB$FID_TO_NAME, which
3485     # will return the volume name for the device, no matter what.  Also,
3486     # it will return an incorrect directory spec if the argument is a
3487     # directory that doesn't exist.
3488     if ($^O eq "VMS") {
3489         return rel2abs($dir);
3490     }
3491
3492     # We use realpath() on Unix, since no other will properly clean out
3493     # a directory spec.
3494     use Cwd qw/realpath/;
3495
3496     return realpath($dir);
3497 }
3498
3499 sub quotify {
3500     my %processors = (
3501         perl    => sub { my $x = shift;
3502                          $x =~ s/([\\\$\@"])/\\$1/g;
3503                          return '"'.$x.'"'; },
3504         maybeshell => sub { my $x = shift;
3505                             (my $y = $x) =~ s/([\\\"])/\\$1/g;
3506                             if ($x ne $y || $x =~ m|\s|) {
3507                                 return '"'.$y.'"';
3508                             } else {
3509                                 return $x;
3510                             }
3511                         },
3512         );
3513     my $for = shift;
3514     my $processor =
3515         defined($processors{$for}) ? $processors{$for} : sub { shift; };
3516
3517     return map { $processor->($_); } @_;
3518 }
3519
3520 # collect_from_file($filename, $line_concat_cond_re, $line_concat)
3521 # $filename is a file name to read from
3522 # $line_concat_cond_re is a regexp detecting a line continuation ending
3523 # $line_concat is a CODEref that takes care of concatenating two lines
3524 sub collect_from_file {
3525     my $filename = shift;
3526     my $line_concat_cond_re = shift;
3527     my $line_concat = shift;
3528
3529     open my $fh, $filename || die "unable to read $filename: $!\n";
3530     return sub {
3531         my $saved_line = "";
3532         $_ = "";
3533         while (<$fh>) {
3534             s|\R$||;
3535             if (defined $line_concat) {
3536                 $_ = $line_concat->($saved_line, $_);
3537                 $saved_line = "";
3538             }
3539             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3540                 $saved_line = $_;
3541                 next;
3542             }
3543             return $_;
3544         }
3545         die "$filename ending with continuation line\n" if $_;
3546         close $fh;
3547         return undef;
3548     }
3549 }
3550
3551 # collect_from_array($array, $line_concat_cond_re, $line_concat)
3552 # $array is an ARRAYref of lines
3553 # $line_concat_cond_re is a regexp detecting a line continuation ending
3554 # $line_concat is a CODEref that takes care of concatenating two lines
3555 sub collect_from_array {
3556     my $array = shift;
3557     my $line_concat_cond_re = shift;
3558     my $line_concat = shift;
3559     my @array = (@$array);
3560
3561     return sub {
3562         my $saved_line = "";
3563         $_ = "";
3564         while (defined($_ = shift @array)) {
3565             s|\R$||;
3566             if (defined $line_concat) {
3567                 $_ = $line_concat->($saved_line, $_);
3568                 $saved_line = "";
3569             }
3570             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3571                 $saved_line = $_;
3572                 next;
3573             }
3574             return $_;
3575         }
3576         die "input text ending with continuation line\n" if $_;
3577         return undef;
3578     }
3579 }
3580
3581 # collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
3582 # $lineiterator is a CODEref that delivers one line at a time.
3583 # All following arguments are regex/CODEref pairs, where the regexp detects a
3584 # line and the CODEref does something with the result of the regexp.
3585 sub collect_information {
3586     my $lineiterator = shift;
3587     my %collectors = @_;
3588
3589     while(defined($_ = $lineiterator->())) {
3590         s|\R$||;
3591         my $found = 0;
3592         if ($collectors{"BEFORE"}) {
3593             $collectors{"BEFORE"}->($_);
3594         }
3595         foreach my $re (keys %collectors) {
3596             if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
3597                 $collectors{$re}->($lineiterator);
3598                 $found = 1;
3599             };
3600         }
3601         if ($collectors{"OTHERWISE"}) {
3602             $collectors{"OTHERWISE"}->($lineiterator, $_)
3603                 unless $found || !defined $collectors{"OTHERWISE"};
3604         }
3605         if ($collectors{"AFTER"}) {
3606             $collectors{"AFTER"}->($_);
3607         }
3608     }
3609 }
3610
3611 # tokenize($line)
3612 # $line is a line of text to split up into tokens
3613 # returns a list of tokens
3614 #
3615 # Tokens are divided by spaces.  If the tokens include spaces, they
3616 # have to be quoted with single or double quotes.  Double quotes
3617 # inside a double quoted token must be escaped.  Escaping is done
3618 # with backslash.
3619 # Basically, the same quoting rules apply for " and ' as in any
3620 # Unix shell.
3621 sub tokenize {
3622     my $line = my $debug_line = shift;
3623     my @result = ();
3624
3625     while ($line =~ s|^\s+||, $line ne "") {
3626         my $token = "";
3627         while ($line ne "" && $line !~ m|^\s|) {
3628             if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
3629                 $token .= $1;
3630                 $line = $';
3631             } elsif ($line =~ m/^'([^']*)'/) {
3632                 $token .= $1;
3633                 $line = $';
3634             } elsif ($line =~ m/^(\S+)/) {
3635                 $token .= $1;
3636                 $line = $';
3637             }
3638         }
3639         push @result, $token;
3640     }
3641
3642     if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
3643         print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
3644         print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
3645     }
3646     return @result;
3647 }