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 OpenSSL license (the "License").  You may not use
   6 # this file except in compliance with the License.  You can obtain a copy
   7 # in the file LICENSE in the source distribution or at
   8 # https://www.openssl.org/source/license.html
   9
  10 ##  Configure -- OpenSSL source tree configuration script
  11
  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/;
  19 use File::Path qw/mkpath/;
  20 use OpenSSL::Glob;
  21
  22 # see INSTALL for instructions.
  23
  24 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";
  25
  26 # Options:
  27 #
  28 # --config      add the given configuration file, which will be read after
  29 #               any "Configurations*" files that are found in the same
  30 #               directory as this script.
  31 # --prefix      prefix for the OpenSSL installation, which includes the
  32 #               directories bin, lib, include, share/man, share/doc/openssl
  33 #               This becomes the value of INSTALLTOP in Makefile
  34 #               (Default: /usr/local)
  35 # --openssldir  OpenSSL data area, such as openssl.cnf, certificates and keys.
  36 #               If it's a relative directory, it will be added on the directory
  37 #               given with --prefix.
  38 #               This becomes the value of OPENSSLDIR in Makefile and in C.
  39 #               (Default: PREFIX/ssl)
  40 #
  41 # --cross-compile-prefix Add specified prefix to binutils components.
  42 #
  43 # --api         One of 0.9.8, 1.0.0 or 1.1.0.  Do not compile support for
  44 #               interfaces deprecated as of the specified OpenSSL version.
  45 #
  46 # no-hw-xxx     do not compile support for specific crypto hardware.
  47 #               Generic OpenSSL-style methods relating to this support
  48 #               are always compiled but return NULL if the hardware
  49 #               support isn't compiled.
  50 # no-hw         do not compile support for any crypto hardware.
  51 # [no-]threads  [don't] try to create a library that is suitable for
  52 #               multithreaded applications (default is "threads" if we
  53 #               know how to do it)
  54 # [no-]shared   [don't] try to create shared libraries when supported.
  55 # [no-]pic      [don't] try to build position independent code when supported.
  56 #               If disabled, it also disables shared and dynamic-engine.
  57 # no-asm        do not use assembler
  58 # no-dso        do not compile in any native shared-library methods. This
  59 #               will ensure that all methods just return NULL.
  60 # no-egd        do not compile support for the entropy-gathering daemon APIs
  61 # [no-]zlib     [don't] compile support for zlib compression.
  62 # zlib-dynamic  Like "zlib", but the zlib library is expected to be a shared
  63 #               library and will be loaded in run-time by the OpenSSL library.
  64 # sctp          include SCTP support
  65 # enable-weak-ssl-ciphers
  66 #               Enable weak ciphers that are disabled by default.
  67 # 386           generate 80386 code in assembly modules
  68 # no-sse2       disables IA-32 SSE2 code in assembly modules, the above
  69 #               mentioned '386' option implies this one
  70 # no-<cipher>   build without specified algorithm (rsa, idea, rc5, ...)
  71 # -<xxx> +<xxx> compiler options are passed through
  72 # -static       while -static is also a pass-through compiler option (and
  73 #               as such is limited to environments where it's actually
  74 #               meaningful), it triggers a number configuration options,
  75 #               namely no-dso, no-pic, no-shared and no-threads. It is
  76 #               argued that the only reason to produce statically linked
  77 #               binaries (and in context it means executables linked with
  78 #               -static flag, and not just executables linked with static
  79 #               libcrypto.a) is to eliminate dependency on specific run-time,
  80 #               a.k.a. libc version. The mentioned config options are meant
  81 #               to achieve just that. Unfortunately on Linux it's impossible
  82 #               to eliminate the dependency completely for openssl executable
  83 #               because of getaddrinfo and gethostbyname calls, which can
  84 #               invoke dynamically loadable library facility anyway to meet
  85 #               the lookup requests. For this reason on Linux statically
  86 #               linked openssl executable has rather debugging value than
  87 #               production quality.
  88 #
  89 # DEBUG_SAFESTACK use type-safe stacks to enforce type-safety on stack items
  90 #               provided to stack calls. Generates unique stack functions for
  91 #               each possible stack type.
  92 # BN_LLONG      use the type 'long long' in crypto/bn/bn.h
  93 # RC4_CHAR      use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
  94 # Following are set automatically by this script
  95 #
  96 # MD5_ASM       use some extra md5 assembler,
  97 # SHA1_ASM      use some extra sha1 assembler, must define L_ENDIAN for x86
  98 # RMD160_ASM    use some extra ripemd160 assembler,
  99 # SHA256_ASM    sha256_block is implemented in assembler
 100 # SHA512_ASM    sha512_block is implemented in assembler
 101 # AES_ASM       AES_[en|de]crypt is implemented in assembler
 102
 103 # Minimum warning options... any contributions to OpenSSL should at least get
 104 # past these.
 105
 106 # DEBUG_UNUSED enables __owur (warn unused result) checks.
 107 # -DPEDANTIC complements -pedantic and is meant to mask code that
 108 # is not strictly standard-compliant and/or implementation-specific,
 109 # e.g. inline assembly, disregards to alignment requirements, such
 110 # that -pedantic would complain about. Incidentally -DPEDANTIC has
 111 # to be used even in sanitized builds, because sanitizer too is
 112 # supposed to and does take notice of non-standard behaviour. Then
 113 # -pedantic with pre-C9x compiler would also complain about 'long
 114 # long' not being supported. As 64-bit algorithms are common now,
 115 # it grew impossible to resolve this without sizeable additional
 116 # code, so we just tell compiler to be pedantic about everything
 117 # but 'long long' type.
 118
 119 my $gcc_devteam_warn = "-DDEBUG_UNUSED"
 120         . " -DPEDANTIC -pedantic -Wno-long-long"
 121         . " -Wall"
 122         . " -Wextra"
 123         . " -Wno-unused-parameter"
 124         . " -Wno-missing-field-initializers"
 125         . " -Wswitch"
 126         . " -Wsign-compare"
 127         . " -Wmissing-prototypes"
 128         . " -Wshadow"
 129         . " -Wformat"
 130         . " -Wtype-limits"
 131         . " -Wundef"
 132         . " -Werror"
 133         ;
 134
 135 # These are used in addition to $gcc_devteam_warn when the compiler is clang.
 136 # TODO(openssl-team): fix problems and investigate if (at least) the
 137 # following warnings can also be enabled:
 138 #       -Wcast-align
 139 #       -Wunreachable-code -- no, too ugly/compiler-specific
 140 #       -Wlanguage-extension-token -- no, we use asm()
 141 #       -Wunused-macros -- no, too tricky for BN and _XOPEN_SOURCE etc
 142 #       -Wextended-offsetof -- no, needed in CMS ASN1 code
 143 my $clang_devteam_warn = ""
 144         . " -Wswitch-default"
 145         . " -Wno-parentheses-equality"
 146         . " -Wno-language-extension-token"
 147         . " -Wno-extended-offsetof"
 148         . " -Wconditional-uninitialized"
 149         . " -Wincompatible-pointer-types-discards-qualifiers"
 150         . " -Wmissing-variable-declarations"
 151         . " -Wno-unknown-warning-option"
 152         ;
 153
 154 # This adds backtrace information to the memory leak info.  Is only used
 155 # when crypto-mdebug-backtrace is enabled.
 156 my $memleak_devteam_backtrace = "-rdynamic";
 157
 158 my $strict_warnings = 0;
 159
 160 # As for $BSDthreads. Idea is to maintain "collective" set of flags,
 161 # which would cover all BSD flavors. -pthread applies to them all,
 162 # but is treated differently. OpenBSD expands is as -D_POSIX_THREAD
 163 # -lc_r, which is sufficient. FreeBSD 4.x expands it as -lc_r,
 164 # which has to be accompanied by explicit -D_THREAD_SAFE and
 165 # sometimes -D_REENTRANT. FreeBSD 5.x expands it as -lc_r, which
 166 # seems to be sufficient?
 167 our $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";
 168
 169 #
 170 # API compatibility name to version number mapping.
 171 #
 172 my $maxapi = "1.1.0";           # API for "no-deprecated" builds
 173 my $apitable = {
 174     "1.1.0" => "0x10100000L",
 175     "1.0.0" => "0x10000000L",
 176     "0.9.8" => "0x00908000L",
 177 };
 178
 179 our %table = ();
 180 our %config = ();
 181 our %withargs = ();
 182 our $now_printing;      # set to current entry's name in print_table_entry
 183                         # (todo: right thing would be to encapsulate name
 184                         # into %target [class] and make print_table_entry
 185                         # a method)
 186
 187 # Forward declarations ###############################################
 188
 189 # read_config(filename)
 190 #
 191 # Reads a configuration file and populates %table with the contents
 192 # (which the configuration file places in %targets).
 193 sub read_config;
 194
 195 # resolve_config(target)
 196 #
 197 # Resolves all the late evaluations, inheritances and so on for the
 198 # chosen target and any target it inherits from.
 199 sub resolve_config;
 200
 201
 202 # Information collection #############################################
 203
 204 # Unified build supports separate build dir
 205 my $srcdir = catdir(absolutedir(dirname($0))); # catdir ensures local syntax
 206 my $blddir = catdir(absolutedir("."));         # catdir ensures local syntax
 207 my $dofile = abs2rel(catfile($srcdir, "util/dofile.pl"));
 208
 209 my $local_config_envname = 'OPENSSL_LOCAL_CONFIG_DIR';
 210
 211 $config{sourcedir} = abs2rel($srcdir);
 212 $config{builddir} = abs2rel($blddir);
 213
 214 # Collect reconfiguration information if needed
 215 my @argvcopy=@ARGV;
 216
 217 if (grep /^reconf(igure)?$/, @argvcopy) {
 218     die "reconfiguring with other arguments present isn't supported"
 219         if scalar @argvcopy > 1;
 220     if (-f "./configdata.pm") {
 221         my $file = "./configdata.pm";
 222         unless (my $return = do $file) {
 223             die "couldn't parse $file: $@" if $@;
 224             die "couldn't do $file: $!"    unless defined $return;
 225             die "couldn't run $file"       unless $return;
 226         }
 227
 228         @argvcopy = defined($configdata::config{perlargv}) ?
 229             @{$configdata::config{perlargv}} : ();
 230         die "Incorrect data to reconfigure, please do a normal configuration\n"
 231             if (grep(/^reconf/,@argvcopy));
 232         $config{perlenv} = $configdata::config{perlenv} // {};
 233     } else {
 234         die "Insufficient data to reconfigure, please do a normal configuration\n";
 235     }
 236 }
 237
 238 $config{perlargv} = [ @argvcopy ];
 239
 240 # Collect version numbers
 241 $config{version} = "unknown";
 242 $config{version_num} = "unknown";
 243 $config{shlib_version_number} = "unknown";
 244 $config{shlib_version_history} = "unknown";
 245
 246 collect_information(
 247     collect_from_file(catfile($srcdir,'include/openssl/opensslv.h')),
 248     qr/OPENSSL.VERSION.TEXT.*OpenSSL (\S+) / => sub { $config{version} = $1; },
 249     qr/OPENSSL.VERSION.NUMBER.*(0x\S+)/      => sub { $config{version_num}=$1 },
 250     qr/SHLIB_VERSION_NUMBER *"([^"]+)"/      => sub { $config{shlib_version_number}=$1 },
 251     qr/SHLIB_VERSION_HISTORY *"([^"]*)"/     => sub { $config{shlib_version_history}=$1 }
 252     );
 253 if ($config{shlib_version_history} ne "") { $config{shlib_version_history} .= ":"; }
 254
 255 ($config{major}, $config{minor})
 256     = ($config{version} =~ /^([0-9]+)\.([0-9\.]+)/);
 257 ($config{shlib_major}, $config{shlib_minor})
 258     = ($config{shlib_version_number} =~ /^([0-9]+)\.([0-9\.]+)/);
 259 die "erroneous version information in opensslv.h: ",
 260     "$config{major}, $config{minor}, $config{shlib_major}, $config{shlib_minor}\n"
 261     if ($config{major} eq "" || $config{minor} eq ""
 262         || $config{shlib_major} eq "" ||  $config{shlib_minor} eq "");
 263
 264 # Collect target configurations
 265
 266 my $pattern = catfile(dirname($0), "Configurations", "*.conf");
 267 foreach (sort glob($pattern)) {
 268     &read_config($_);
 269 }
 270
 271 if (defined env($local_config_envname)) {
 272     if ($^O eq 'VMS') {
 273         # VMS environment variables are logical names,
 274         # which can be used as is
 275         $pattern = $local_config_envname . ':' . '*.conf';
 276     } else {
 277         $pattern = catfile(env($local_config_envname), '*.conf');
 278     }
 279
 280     foreach (sort glob($pattern)) {
 281         &read_config($_);
 282     }
 283 }
 284
 285 # Save away perl command information
 286 $config{perl_cmd} = $^X;
 287 $config{perl_version} = $Config{version};
 288 $config{perl_archname} = $Config{archname};
 289
 290 $config{prefix}="";
 291 $config{openssldir}="";
 292 $config{processor}="";
 293 $config{libdir}="";
 294 my $auto_threads=1;    # enable threads automatically? true by default
 295 my $default_ranlib;
 296
 297 # Top level directories to build
 298 $config{dirs} = [ "crypto", "ssl", "engines", "apps", "test", "util", "tools", "fuzz" ];
 299 # crypto/ subdirectories to build
 300 $config{sdirs} = [
 301     "objects",
 302     "md2", "md4", "md5", "sha", "mdc2", "hmac", "ripemd", "whrlpool", "poly1305", "blake2", "siphash", "sm3",
 303     "des", "aes", "rc2", "rc4", "rc5", "idea", "aria", "bf", "cast", "camellia", "seed", "sm4", "chacha", "modes",
 304     "bn", "ec", "rsa", "dsa", "dh", "sm2", "dso", "engine",
 305     "buffer", "bio", "stack", "lhash", "rand", "err",
 306     "evp", "asn1", "pem", "x509", "x509v3", "conf", "txt_db", "pkcs7", "pkcs12", "comp", "ocsp", "ui",
 307     "cms", "ts", "srp", "cmac", "ct", "async", "kdf", "store"
 308     ];
 309 # test/ subdirectories to build
 310 $config{tdirs} = [ "ossl_shim" ];
 311
 312 # Known TLS and DTLS protocols
 313 my @tls = qw(ssl3 tls1 tls1_1 tls1_2 tls1_3);
 314 my @dtls = qw(dtls1 dtls1_2);
 315
 316 # Explicitly known options that are possible to disable.  They can
 317 # be regexps, and will be used like this: /^no-${option}$/
 318 # For developers: keep it sorted alphabetically
 319
 320 my @disablables = (
 321     "afalgeng",
 322     "aria",
 323     "asan",
 324     "asm",
 325     "async",
 326     "autoalginit",
 327     "autoerrinit",
 328     "bf",
 329     "blake2",
 330     "camellia",
 331     "capieng",
 332     "cast",
 333     "chacha",
 334     "cmac",
 335     "cms",
 336     "comp",
 337     "crypto-mdebug",
 338     "crypto-mdebug-backtrace",
 339     "ct",
 340     "deprecated",
 341     "des",
 342     "devcryptoeng",
 343     "dgram",
 344     "dh",
 345     "dsa",
 346     "dso",
 347     "dtls",
 348     "dynamic-engine",
 349     "ec",
 350     "ec2m",
 351     "ecdh",
 352     "ecdsa",
 353     "ec_nistp_64_gcc_128",
 354     "egd",
 355     "engine",
 356     "err",
 357     "external-tests",
 358     "filenames",
 359     "fuzz-libfuzzer",
 360     "fuzz-afl",
 361     "gost",
 362     "heartbeats",
 363     "hw(-.+)?",
 364     "idea",
 365     "makedepend",
 366     "md2",
 367     "md4",
 368     "mdc2",
 369     "msan",
 370     "multiblock",
 371     "nextprotoneg",
 372     "ocb",
 373     "ocsp",
 374     "pic",
 375     "poly1305",
 376     "posix-io",
 377     "psk",
 378     "rc2",
 379     "rc4",
 380     "rc5",
 381     "rdrand",
 382     "rfc3779",
 383     "rmd160",
 384     "scrypt",
 385     "sctp",
 386     "seed",
 387     "shared",
 388     "siphash",
 389     "sm2",
 390     "sm3",
 391     "sm4",
 392     "sock",
 393     "srp",
 394     "srtp",
 395     "sse2",
 396     "ssl",
 397     "ssl-trace",
 398     "static-engine",
 399     "stdio",
 400     "tests",
 401     "threads",
 402     "tls",
 403     "tls13downgrade",
 404     "ts",
 405     "ubsan",
 406     "ui-console",
 407     "unit-test",
 408     "whirlpool",
 409     "weak-ssl-ciphers",
 410     "zlib",
 411     "zlib-dynamic",
 412     );
 413 foreach my $proto ((@tls, @dtls))
 414         {
 415         push(@disablables, $proto);
 416         push(@disablables, "$proto-method") unless $proto eq "tls1_3";
 417         }
 418
 419 my %deprecated_disablables = (
 420     "ssl2" => undef,
 421     "buf-freelists" => undef,
 422     "ripemd" => "rmd160",
 423     "ui" => "ui-console",
 424     );
 425
 426 # All of the following is disabled by default (RC5 was enabled before 0.9.8):
 427
 428 our %disabled = ( # "what"         => "comment"
 429                   "asan"                => "default",
 430                   "crypto-mdebug"       => "default",
 431                   "crypto-mdebug-backtrace" => "default",
 432                   "devcryptoeng"        => "default",
 433                   "ec_nistp_64_gcc_128" => "default",
 434                   "egd"                 => "default",
 435                   "external-tests"      => "default",
 436                   "fuzz-libfuzzer"      => "default",
 437                   "fuzz-afl"            => "default",
 438                   "heartbeats"          => "default",
 439                   "md2"                 => "default",
 440                   "msan"                => "default",
 441                   "rc5"                 => "default",
 442                   "sctp"                => "default",
 443                   "ssl-trace"           => "default",
 444                   "ssl3"                => "default",
 445                   "ssl3-method"         => "default",
 446                   "ubsan"               => "default",
 447                   "tls13downgrade"      => "default",
 448                   "unit-test"           => "default",
 449                   "weak-ssl-ciphers"    => "default",
 450                   "zlib"                => "default",
 451                   "zlib-dynamic"        => "default",
 452                 );
 453
 454 # Note: => pair form used for aesthetics, not to truly make a hash table
 455 my @disable_cascades = (
 456     # "what"            => [ "cascade", ... ]
 457     sub { $config{processor} eq "386" }
 458                         => [ "sse2" ],
 459     "ssl"               => [ "ssl3" ],
 460     "ssl3-method"       => [ "ssl3" ],
 461     "zlib"              => [ "zlib-dynamic" ],
 462     "des"               => [ "mdc2" ],
 463     "ec"                => [ "ecdsa", "ecdh" ],
 464
 465     "dgram"             => [ "dtls", "sctp" ],
 466     "sock"              => [ "dgram" ],
 467     "dtls"              => [ @dtls ],
 468     sub { 0 == scalar grep { !$disabled{$_} } @dtls }
 469                         => [ "dtls" ],
 470
 471     "tls"               => [ @tls ],
 472     sub { 0 == scalar grep { !$disabled{$_} } @tls }
 473                         => [ "tls" ],
 474
 475     "crypto-mdebug"     => [ "crypto-mdebug-backtrace" ],
 476
 477     # Without DSO, we can't load dynamic engines, so don't build them dynamic
 478     "dso"               => [ "dynamic-engine" ],
 479
 480     # Without position independent code, there can be no shared libraries or DSOs
 481     "pic"               => [ "shared" ],
 482     "shared"            => [ "dynamic-engine" ],
 483     "engine"            => [ "afalgeng", "devcryptoeng" ],
 484
 485     # no-autoalginit is only useful when building non-shared
 486     "autoalginit"       => [ "shared", "apps" ],
 487
 488     "stdio"             => [ "apps", "capieng", "egd" ],
 489     "apps"              => [ "tests" ],
 490     "tests"             => [ "external-tests" ],
 491     "comp"              => [ "zlib" ],
 492     "ec"                => [ "tls1_3", "sm2" ],
 493     "sm3"               => [ "sm2" ],
 494     sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
 495
 496     sub { !$disabled{"msan"} } => [ "asm" ],
 497     );
 498
 499 # Avoid protocol support holes.  Also disable all versions below N, if version
 500 # N is disabled while N+1 is enabled.
 501 #
 502 my @list = (reverse @tls);
 503 while ((my $first, my $second) = (shift @list, shift @list)) {
 504     last unless @list;
 505     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 506                               => [ @list ] );
 507     unshift @list, $second;
 508 }
 509 my @list = (reverse @dtls);
 510 while ((my $first, my $second) = (shift @list, shift @list)) {
 511     last unless @list;
 512     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 513                               => [ @list ] );
 514     unshift @list, $second;
 515 }
 516
 517 # Explicit "no-..." options will be collected in %disabled along with the defaults.
 518 # To remove something from %disabled, use "enable-foo".
 519 # For symmetry, "disable-foo" is a synonym for "no-foo".
 520
 521 &usage if ($#ARGV < 0);
 522
 523 # For the "make variables" CINCLUDES and CDEFINES, we support lists with
 524 # platform specific list separators.  Users from those platforms should
 525 # recognise those separators from how you set up the PATH to find executables.
 526 # The default is the Unix like separator, :, but as an exception, we also
 527 # support the space as separator.
 528 my $list_separator_re =
 529     { VMS           => qr/(?<!\^),/,
 530       MSWin32       => qr/(?<!\\);/ } -> {$^O} // qr/(?<!\\)[:\s]/;
 531 # All the "make variables" we support
 532 # Some get pre-populated for the sake of backward compatibility
 533 # (we supported those before the change to "make variable" support.
 534 my %user = (
 535     AR          => env('AR'),
 536     ARFLAGS     => [],
 537     AS          => undef,
 538     ASFLAGS     => [],
 539     CC          => env('CC'),
 540     CFLAGS      => [],
 541     CXX         => env('CXX'),
 542     CXXFLAGS    => [],
 543     CPP         => undef,
 544     CPPFLAGS    => [],  # -D, -I, -Wp,
 545     CPPDEFINES  => [],  # Alternative for -D
 546     CPPINCLUDES => [],  # Alternative for -I
 547     CROSS_COMPILE => env('CROSS_COMPILE'),
 548     HASHBANGPERL=> env('HASHBANGPERL') || env('PERL'),
 549     LD          => undef,
 550     LDFLAGS     => [],  # -L, -Wl,
 551     LDLIBS      => [],  # -l
 552     MT          => undef,
 553     MTFLAGS     => [],
 554     RANLIB      => env('RANLIB'),
 555     RC          => env('RC') || env('WINDRES'),
 556     RCFLAGS     => [],
 557     RM          => undef,
 558    );
 559 # Info about what "make variables" may be prefixed with the cross compiler
 560 # prefix.  This should NEVER mention any such variable with a list for value.
 561 my @user_crossable = qw ( AR AS CC CXX CPP LD MT RANLIB RC );
 562 # The same but for flags given as Configure options.  These are *additional*
 563 # input, as opposed to the VAR=string option that override the corresponding
 564 # config target attributes
 565 my %useradd = (
 566     CPPDEFINES  => [],
 567     CPPINCLUDES => [],
 568     CPPFLAGS    => [],
 569     CFLAGS      => [],
 570     CXXFLAGS    => [],
 571     LDFLAGS     => [],
 572     LDLIBS      => [],
 573    );
 574
 575 my %user_synonyms = (
 576     HASHBANGPERL=> 'PERL',
 577     RC          => 'WINDRES',
 578    );
 579
 580 # Some target attributes have been renamed, this is the translation table
 581 my %target_attr_translate =(
 582     ar          => 'AR',
 583     as          => 'AS',
 584     cc          => 'CC',
 585     cxx         => 'CXX',
 586     cpp         => 'CPP',
 587     hashbangperl => 'HASHBANGPERL',
 588     ld          => 'LD',
 589     mt          => 'MT',
 590     ranlib      => 'RANLIB',
 591     rc          => 'RC',
 592     rm          => 'RM',
 593    );
 594
 595 # Initialisers coming from 'config' scripts
 596 $config{defines} = [ split(/$list_separator_re/, env('__CNF_CPPDEFINES')) ];
 597 $config{includes} = [ split(/$list_separator_re/, env('__CNF_CPPINCLUDES')) ];
 598 $config{cppflags} = [ env('__CNF_CPPFLAGS') || () ];
 599 $config{cflags} = [ env('__CNF_CFLAGS') || () ];
 600 $config{cxxflags} = [ env('__CNF_CXXFLAGS') || () ];
 601 $config{lflags} = [ env('__CNF_LDFLAGS') || () ];
 602 $config{ex_libs} = [ env('__CNF_LDLIBS') || () ];
 603
 604 $config{openssl_api_defines}=[];
 605 $config{openssl_algorithm_defines}=[];
 606 $config{openssl_thread_defines}=[];
 607 $config{openssl_sys_defines}=[];
 608 $config{openssl_other_defines}=[];
 609 $config{options}="";
 610 $config{build_type} = "release";
 611 my $target="";
 612
 613 my %cmdvars = ();               # Stores FOO='blah' type arguments
 614 my %unsupported_options = ();
 615 my %deprecated_options = ();
 616 # If you change this, update apps/version.c
 617 my @known_seed_sources = qw(getrandom devrandom os egd none rdcpu librandom);
 618 my @seed_sources = ();
 619 while (@argvcopy)
 620         {
 621         $_ = shift @argvcopy;
 622
 623         # Support env variable assignments among the options
 624         if (m|^(\w+)=(.+)?$|)
 625                 {
 626                 $cmdvars{$1} = $2;
 627                 # Every time a variable is given as a configuration argument,
 628                 # it acts as a reset if the variable.
 629                 if (exists $user{$1})
 630                         {
 631                         $user{$1} = ref $user{$1} eq "ARRAY" ? [] : undef;
 632                         }
 633                 #if (exists $useradd{$1})
 634                 #       {
 635                 #       $useradd{$1} = [];
 636                 #       }
 637                 next;
 638                 }
 639
 640         # VMS is a case insensitive environment, and depending on settings
 641         # out of our control, we may receive options uppercased.  Let's
 642         # downcase at least the part before any equal sign.
 643         if ($^O eq "VMS")
 644                 {
 645                 s/^([^=]*)/lc($1)/e;
 646                 }
 647
 648         # some people just can't read the instructions, clang people have to...
 649         s/^-no-(?!integrated-as)/no-/;
 650
 651         # rewrite some options in "enable-..." form
 652         s /^-?-?shared$/enable-shared/;
 653         s /^sctp$/enable-sctp/;
 654         s /^threads$/enable-threads/;
 655         s /^zlib$/enable-zlib/;
 656         s /^zlib-dynamic$/enable-zlib-dynamic/;
 657
 658         if (/^(no|disable|enable)-(.+)$/)
 659                 {
 660                 my $word = $2;
 661                 if (!exists $deprecated_disablables{$word}
 662                         && !grep { $word =~ /^${_}$/ } @disablables)
 663                         {
 664                         $unsupported_options{$_} = 1;
 665                         next;
 666                         }
 667                 }
 668         if (/^no-(.+)$/ || /^disable-(.+)$/)
 669                 {
 670                 foreach my $proto ((@tls, @dtls))
 671                         {
 672                         if ($1 eq "$proto-method")
 673                                 {
 674                                 $disabled{"$proto"} = "option($proto-method)";
 675                                 last;
 676                                 }
 677                         }
 678                 if ($1 eq "dtls")
 679                         {
 680                         foreach my $proto (@dtls)
 681                                 {
 682                                 $disabled{$proto} = "option(dtls)";
 683                                 }
 684                         $disabled{"dtls"} = "option(dtls)";
 685                         }
 686                 elsif ($1 eq "ssl")
 687                         {
 688                         # Last one of its kind
 689                         $disabled{"ssl3"} = "option(ssl)";
 690                         }
 691                 elsif ($1 eq "tls")
 692                         {
 693                         # XXX: Tests will fail if all SSL/TLS
 694                         # protocols are disabled.
 695                         foreach my $proto (@tls)
 696                                 {
 697                                 $disabled{$proto} = "option(tls)";
 698                                 }
 699                         }
 700                 elsif ($1 eq "static-engine")
 701                         {
 702                         delete $disabled{"dynamic-engine"};
 703                         }
 704                 elsif ($1 eq "dynamic-engine")
 705                         {
 706                         $disabled{"dynamic-engine"} = "option";
 707                         }
 708                 elsif (exists $deprecated_disablables{$1})
 709                         {
 710                         $deprecated_options{$_} = 1;
 711                         if (defined $deprecated_disablables{$1})
 712                                 {
 713                                 $disabled{$deprecated_disablables{$1}} = "option";
 714                                 }
 715                         }
 716                 else
 717                         {
 718                         $disabled{$1} = "option";
 719                         }
 720                 # No longer an automatic choice
 721                 $auto_threads = 0 if ($1 eq "threads");
 722                 }
 723         elsif (/^enable-(.+)$/)
 724                 {
 725                 if ($1 eq "static-engine")
 726                         {
 727                         $disabled{"dynamic-engine"} = "option";
 728                         }
 729                 elsif ($1 eq "dynamic-engine")
 730                         {
 731                         delete $disabled{"dynamic-engine"};
 732                         }
 733                 elsif ($1 eq "zlib-dynamic")
 734                         {
 735                         delete $disabled{"zlib"};
 736                         }
 737                 my $algo = $1;
 738                 delete $disabled{$algo};
 739
 740                 # No longer an automatic choice
 741                 $auto_threads = 0 if ($1 eq "threads");
 742                 }
 743         elsif (/^--strict-warnings$/)
 744                 {
 745                 $strict_warnings = 1;
 746                 }
 747         elsif (/^--debug$/)
 748                 {
 749                 $config{build_type} = "debug";
 750                 }
 751         elsif (/^--release$/)
 752                 {
 753                 $config{build_type} = "release";
 754                 }
 755         elsif (/^386$/)
 756                 { $config{processor}=386; }
 757         elsif (/^fips$/)
 758                 {
 759                 die "FIPS mode not supported\n";
 760                 }
 761         elsif (/^rsaref$/)
 762                 {
 763                 # No RSAref support any more since it's not needed.
 764                 # The check for the option is there so scripts aren't
 765                 # broken
 766                 }
 767         elsif (/^nofipscanistercheck$/)
 768                 {
 769                 die "FIPS mode not supported\n";
 770                 }
 771         elsif (/^[-+]/)
 772                 {
 773                 if (/^--prefix=(.*)$/)
 774                         {
 775                         $config{prefix}=$1;
 776                         die "Directory given with --prefix MUST be absolute\n"
 777                                 unless file_name_is_absolute($config{prefix});
 778                         }
 779                 elsif (/^--api=(.*)$/)
 780                         {
 781                         $config{api}=$1;
 782                         }
 783                 elsif (/^--libdir=(.*)$/)
 784                         {
 785                         $config{libdir}=$1;
 786                         }
 787                 elsif (/^--openssldir=(.*)$/)
 788                         {
 789                         $config{openssldir}=$1;
 790                         }
 791                 elsif (/^--with-zlib-lib=(.*)$/)
 792                         {
 793                         $withargs{zlib_lib}=$1;
 794                         }
 795                 elsif (/^--with-zlib-include=(.*)$/)
 796                         {
 797                         $withargs{zlib_include}=$1;
 798                         }
 799                 elsif (/^--with-fuzzer-lib=(.*)$/)
 800                         {
 801                         $withargs{fuzzer_lib}=$1;
 802                         }
 803                 elsif (/^--with-fuzzer-include=(.*)$/)
 804                         {
 805                         $withargs{fuzzer_include}=$1;
 806                         }
 807                 elsif (/^--with-rand-seed=(.*)$/)
 808                         {
 809                         foreach my $x (split(m|,|, $1))
 810                             {
 811                             die "Unknown --with-rand-seed choice $x\n"
 812                                 if ! grep { $x eq $_ } @known_seed_sources;
 813                             push @seed_sources, $x;
 814                             }
 815                         }
 816                 elsif (/^--cross-compile-prefix=(.*)$/)
 817                         {
 818                         $user{CROSS_COMPILE}=$1;
 819                         }
 820                 elsif (/^--config=(.*)$/)
 821                         {
 822                         read_config $1;
 823                         }
 824                 elsif (/^-L(.*)$/)
 825                         {
 826                         push @{$useradd{LDFLAGS}}, $_;
 827                         }
 828                 elsif (/^-l(.*)$/ or /^-Wl,/)
 829                         {
 830                         push @{$useradd{LDLIBS}}, $_;
 831                         }
 832                 elsif (/^-framework$/)
 833                         {
 834                         push @{$useradd{LDLIBS}}, $_, shift(@argvcopy);
 835                         }
 836                 elsif (/^-rpath$/ or /^-R$/)
 837                         # -rpath is the OSF1 rpath flag
 838                         # -R is the old Solaris rpath flag
 839                         {
 840                         my $rpath = shift(@argvcopy) || "";
 841                         $rpath .= " " if $rpath ne "";
 842                         push @{$useradd{LDFLAGS}}, $_, $rpath;
 843                         }
 844                 elsif (/^-static$/)
 845                         {
 846                         push @{$useradd{LDFLAGS}}, $_;
 847                         $disabled{"dso"} = "forced";
 848                         $disabled{"pic"} = "forced";
 849                         $disabled{"shared"} = "forced";
 850                         $disabled{"threads"} = "forced";
 851                         }
 852                 elsif (/^-D(.*)$/)
 853                         {
 854                         push @{$useradd{CPPDEFINES}}, $1;
 855                         }
 856                 elsif (/^-I(.*)$/)
 857                         {
 858                         push @{$useradd{CPPINCLUDES}}, $1;
 859                         }
 860                 elsif (/^-Wp,$/)
 861                         {
 862                         push @{$useradd{CPPFLAGS}}, $1;
 863                         }
 864                 else    # common if (/^[-+]/), just pass down...
 865                         {
 866                         $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
 867                         push @{$useradd{CFLAGS}}, $_;
 868                         push @{$useradd{CXXFLAGS}}, $_;
 869                         }
 870                 }
 871         else
 872                 {
 873                 die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
 874                 $target=$_;
 875                 }
 876         unless ($_ eq $target || /^no-/ || /^disable-/)
 877                 {
 878                 # "no-..." follows later after implied deactivations
 879                 # have been derived.  (Don't take this too seriously,
 880                 # we really only write OPTIONS to the Makefile out of
 881                 # nostalgia.)
 882
 883                 if ($config{options} eq "")
 884                         { $config{options} = $_; }
 885                 else
 886                         { $config{options} .= " ".$_; }
 887                 }
 888
 889         if (defined($config{api}) && !exists $apitable->{$config{api}}) {
 890                 die "***** Unsupported api compatibility level: $config{api}\n",
 891         }
 892
 893         if (keys %deprecated_options)
 894                 {
 895                 warn "***** Deprecated options: ",
 896                         join(", ", keys %deprecated_options), "\n";
 897                 }
 898         if (keys %unsupported_options)
 899                 {
 900                 die "***** Unsupported options: ",
 901                         join(", ", keys %unsupported_options), "\n";
 902                 }
 903         }
 904
 905 # If any %useradd entry has been set, we must check that the "make
 906 # variables" haven't been set.  We start by checking of any %useradd entry
 907 # is set.
 908 if (grep { scalar @$_ > 0 } values %useradd) {
 909     # Hash of env / make variables names.  The possible values are:
 910     # 1 - "make vars"
 911     # 2 - %useradd entry set
 912     # 3 - both set
 913     my %detected_vars =
 914         map { my $v = 0;
 915               $v += 1 if $cmdvars{$_};
 916               $v += 2 if @{$useradd{$_}};
 917               $_ => $v }
 918         keys %useradd;
 919
 920     # If any of the corresponding "make variables" is set, we error
 921     if (grep { $_ & 1 } values %detected_vars) {
 922         my $names = join(', ', grep { $detected_vars{$_} > 0 }
 923                                sort keys %detected_vars);
 924         die <<"_____";
 925 ***** Mixing make variables and additional compiler/linker flags as
 926 ***** configure command line option is not permitted.
 927 ***** Affected make variables: $names
 928 _____
 929     }
 930 }
 931
 932 # Check through all supported command line variables to see if any of them
 933 # were set, and canonicalise the values we got.  If no compiler or linker
 934 # flag or anything else that affects %useradd was set, we also check the
 935 # environment for values.
 936 my $anyuseradd =
 937     grep { defined $_ && (ref $_ ne 'ARRAY' || @$_) } values %useradd;
 938 foreach (keys %user) {
 939     my $value = $cmdvars{$_};
 940     $value //= env($_) unless $anyuseradd;
 941     $value //=
 942         defined $user_synonyms{$_} ? $cmdvars{$user_synonyms{$_}} : undef;
 943     $value //= defined $user_synonyms{$_} ? env($user_synonyms{$_}) : undef
 944         unless $anyuseradd;
 945
 946     if (defined $value) {
 947         if (ref $user{$_} eq 'ARRAY') {
 948             $user{$_} = [ split /$list_separator_re/, $value ];
 949         } elsif (!defined $user{$_}) {
 950             $user{$_} = $value;
 951         }
 952     }
 953 }
 954
 955 if (grep { $_ =~ /(^|\s)-Wl,-rpath,/ } ($user{LDLIBS} ? @{$user{LDLIBS}} : ())
 956     && !$disabled{shared}
 957     && !($disabled{asan} && $disabled{msan} && $disabled{ubsan})) {
 958     die "***** Cannot simultaneously use -rpath, shared libraries, and\n",
 959         "***** any of asan, msan or ubsan\n";
 960 }
 961
 962 my @tocheckfor = (keys %disabled);
 963 while (@tocheckfor) {
 964     my %new_tocheckfor = ();
 965     my @cascade_copy = (@disable_cascades);
 966     while (@cascade_copy) {
 967         my ($test, $descendents) = (shift @cascade_copy, shift @cascade_copy);
 968         if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
 969             foreach(grep { !defined($disabled{$_}) } @$descendents) {
 970                 $new_tocheckfor{$_} = 1; $disabled{$_} = "forced";
 971             }
 972         }
 973     }
 974     @tocheckfor = (keys %new_tocheckfor);
 975 }
 976
 977 our $die = sub { die @_; };
 978 if ($target eq "TABLE") {
 979     local $die = sub { warn @_; };
 980     foreach (sort keys %table) {
 981         print_table_entry($_, "TABLE");
 982     }
 983     exit 0;
 984 }
 985
 986 if ($target eq "LIST") {
 987     foreach (sort keys %table) {
 988         print $_,"\n" unless $table{$_}->{template};
 989     }
 990     exit 0;
 991 }
 992
 993 if ($target eq "HASH") {
 994     local $die = sub { warn @_; };
 995     print "%table = (\n";
 996     foreach (sort keys %table) {
 997         print_table_entry($_, "HASH");
 998     }
 999     exit 0;
1000 }
1001
1002 print "Configuring OpenSSL version $config{version} ($config{version_num}) ";
1003 print "for $target\n";
1004
1005 if (scalar(@seed_sources) == 0) {
1006     print "Using os-specific seed configuration\n";
1007     push @seed_sources, 'os';
1008 }
1009 die "Cannot seed with none and anything else"
1010     if scalar(grep { $_ eq 'none' } @seed_sources) > 0
1011         && scalar(@seed_sources) > 1;
1012 push @{$config{openssl_other_defines}},
1013      map { (my $x = $_) =~ tr|[\-a-z]|[_A-Z]|; "OPENSSL_RAND_SEED_$x" }
1014         @seed_sources;
1015
1016 # Backward compatibility?
1017 if ($target =~ m/^CygWin32(-.*)$/) {
1018     $target = "Cygwin".$1;
1019 }
1020
1021 # Support for legacy targets having a name starting with 'debug-'
1022 my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
1023 if ($d) {
1024     $config{build_type} = "debug";
1025
1026     # If we do not find debug-foo in the table, the target is set to foo.
1027     if (!$table{$target}) {
1028         $target = $t;
1029     }
1030 }
1031 $config{target} = $target;
1032 my %target = resolve_config($target);
1033
1034 &usage if (!%target || $target{template});
1035
1036 foreach (keys %target_attr_translate) {
1037     $target{$target_attr_translate{$_}} = $target{$_}
1038         if $target{$_};
1039     delete $target{$_};
1040 }
1041
1042 %target = ( %{$table{DEFAULTS}}, %target );
1043
1044 # Make the flags to build DSOs the same as for shared libraries unless they
1045 # are already defined
1046 $target{module_cflags} = $target{shared_cflag} unless defined $target{module_cflags};
1047 $target{module_cxxflags} = $target{shared_cxxflag} unless defined $target{module_cxxflags};
1048 $target{module_ldflags} = $target{shared_ldflag} unless defined $target{module_ldflags};
1049 {
1050     my $shared_info_pl =
1051         catfile(dirname($0), "Configurations", "shared-info.pl");
1052     my %shared_info = read_eval_file($shared_info_pl);
1053     push @{$target{_conf_fname_int}}, $shared_info_pl;
1054     my $si = $target{shared_target};
1055     while (ref $si ne "HASH") {
1056         last if ! defined $si;
1057         if (ref $si eq "CODE") {
1058             $si = $si->();
1059         } else {
1060             $si = $shared_info{$si};
1061         }
1062     }
1063
1064     # Some of the 'shared_target' values don't have any entried in
1065     # %shared_info.  That's perfectly fine, AS LONG AS the build file
1066     # template knows how to handle this.  That is currently the case for
1067     # Windows and VMS.
1068     if (defined $si) {
1069         # Just as above, copy certain shared_* attributes to the corresponding
1070         # module_ attribute unless the latter is already defined
1071         $si->{module_cflags} = $si->{shared_cflag} unless defined $si->{module_cflags};
1072         $si->{module_cxxflags} = $si->{shared_cxxflag} unless defined $si->{module_cxxflags};
1073         $si->{module_ldflags} = $si->{shared_ldflag} unless defined $si->{module_ldflags};
1074         foreach (sort keys %$si) {
1075             $target{$_} = defined $target{$_}
1076                 ? add($si->{$_})->($target{$_})
1077                 : $si->{$_};
1078         }
1079     }
1080 }
1081
1082 my %conf_files = map { $_ => 1 } (@{$target{_conf_fname_int}});
1083 $config{conf_files} = [ sort keys %conf_files ];
1084
1085 foreach my $feature (@{$target{disable}}) {
1086     if (exists $deprecated_disablables{$feature}) {
1087         warn "***** config $target disables deprecated feature $feature\n";
1088     } elsif (!grep { $feature eq $_ } @disablables) {
1089         die "***** config $target disables unknown feature $feature\n";
1090     }
1091     $disabled{$feature} = 'config';
1092 }
1093 foreach my $feature (@{$target{enable}}) {
1094     if ("default" eq ($disabled{$_} // "")) {
1095         if (exists $deprecated_disablables{$feature}) {
1096             warn "***** config $target enables deprecated feature $feature\n";
1097         } elsif (!grep { $feature eq $_ } @disablables) {
1098             die "***** config $target enables unknown feature $feature\n";
1099         }
1100         delete $disabled{$_};
1101     }
1102 }
1103
1104 $target{CXXFLAGS}//=$target{CFLAGS} if $target{CXX};
1105 $target{cxxflags}//=$target{cflags} if $target{CXX};
1106 $target{exe_extension}="";
1107 $target{exe_extension}=".exe" if ($config{target} eq "DJGPP"
1108                                   || $config{target} =~ /^(?:Cygwin|mingw)/);
1109 $target{exe_extension}=".pm"  if ($config{target} =~ /vos/);
1110
1111 ($target{shared_extension_simple}=$target{shared_extension})
1112     =~ s|\.\$\(SHLIB_VERSION_NUMBER\)||;
1113 $target{dso_extension}=$target{shared_extension_simple};
1114 ($target{shared_import_extension}=$target{shared_extension_simple}.".a")
1115     if ($config{target} =~ /^(?:Cygwin|mingw)/);
1116
1117 # Allow overriding the names of some tools.  USE WITH CARE
1118 # Note: only Unix cares about HASHBANGPERL...  that explains
1119 # the default string.
1120 $config{perl} =    ($^O ne "VMS" ? $^X : "perl");
1121 foreach (keys %user) {
1122     my $ref_type = ref $user{$_};
1123
1124     # Temporary function.  Takes an intended ref type (empty string or "ARRAY")
1125     # and a value that's to be coerced into that type.
1126     my $mkvalue = sub {
1127         my $type = shift;
1128         my $value = shift;
1129         my $undef_p = shift;
1130
1131         die "Too many arguments for \$mkvalue" if @_;
1132
1133         while (ref $value eq 'CODE') {
1134             $value = $value->();
1135         }
1136
1137         if ($type eq 'ARRAY') {
1138             return undef unless defined $value;
1139             return undef if ref $value ne 'ARRAY' && !$value;
1140             return undef if ref $value eq 'ARRAY' && !@$value;
1141             return [ $value ] unless ref $value eq 'ARRAY';
1142         }
1143         return undef unless $value;
1144         return $value;
1145     };
1146
1147     $config{$_} =
1148         $mkvalue->($ref_type, $user{$_})
1149         || $mkvalue->($ref_type, $target{$_});
1150     delete $config{$_} unless defined $config{$_};
1151 }
1152
1153 # Allow overriding the build file name
1154 $config{build_file} = env('BUILDFILE') || $target{build_file} || "Makefile";
1155
1156 my %disabled_info = ();         # For configdata.pm
1157 foreach my $what (sort keys %disabled) {
1158     $config{options} .= " no-$what";
1159
1160     if (!grep { $what eq $_ } ( 'dso', 'threads', 'shared', 'pic',
1161                                 'dynamic-engine', 'makedepend',
1162                                 'zlib-dynamic', 'zlib', 'sse2' )) {
1163         (my $WHAT = uc $what) =~ s|-|_|g;
1164
1165         # Fix up C macro end names
1166         $WHAT = "RMD160" if $what eq "ripemd";
1167
1168         # fix-up crypto/directory name(s)
1169         $what = "ripemd" if $what eq "rmd160";
1170         $what = "whrlpool" if $what eq "whirlpool";
1171
1172         my $macro = $disabled_info{$what}->{macro} = "OPENSSL_NO_$WHAT";
1173
1174         if ((grep { $what eq $_ } @{$config{sdirs}})
1175                 && $what ne 'async' && $what ne 'err') {
1176             @{$config{sdirs}} = grep { $what ne $_} @{$config{sdirs}};
1177             $disabled_info{$what}->{skipped} = [ catdir('crypto', $what) ];
1178
1179             if ($what ne 'engine') {
1180                 push @{$config{openssl_algorithm_defines}}, $macro;
1181             } else {
1182                 @{$config{dirs}} = grep !/^engines$/, @{$config{dirs}};
1183                 push @{$disabled_info{engine}->{skipped}}, catdir('engines');
1184                 push @{$config{openssl_other_defines}}, $macro;
1185             }
1186         } else {
1187             push @{$config{openssl_other_defines}}, $macro;
1188         }
1189
1190     }
1191 }
1192
1193 # Make sure build_scheme is consistent.
1194 $target{build_scheme} = [ $target{build_scheme} ]
1195     if ref($target{build_scheme}) ne "ARRAY";
1196
1197 my ($builder, $builder_platform, @builder_opts) =
1198     @{$target{build_scheme}};
1199
1200 foreach my $checker (($builder_platform."-".$target{build_file}."-checker.pm",
1201                       $builder_platform."-checker.pm")) {
1202     my $checker_path = catfile($srcdir, "Configurations", $checker);
1203     if (-f $checker_path) {
1204         my $fn = $ENV{CONFIGURE_CHECKER_WARN}
1205             ? sub { warn $@; } : sub { die $@; };
1206         if (! do $checker_path) {
1207             if ($@) {
1208                 $fn->($@);
1209             } elsif ($!) {
1210                 $fn->($!);
1211             } else {
1212                 $fn->("The detected tools didn't match the platform\n");
1213             }
1214         }
1215         last;
1216     }
1217 }
1218
1219 push @{$config{defines}}, "NDEBUG"    if $config{build_type} eq "release";
1220
1221 if ($target =~ /^mingw/ && `$config{CC} --target-help 2>&1` =~ m/-mno-cygwin/m)
1222         {
1223         push @{$config{cflags}}, "-mno-cygwin";
1224         push @{$config{cxxflags}}, "-mno-cygwin" if $config{CXX};
1225         push @{$config{shared_ldflag}}, "-mno-cygwin";
1226         }
1227
1228 if ($target =~ /linux.*-mips/ && !$disabled{asm}
1229         && !grep { $_ !~ /-m(ips|arch=)/ } (@{$user{CFLAGS}},
1230                                             @{$useradd{CFLAGS}})) {
1231         # minimally required architecture flags for assembly modules
1232         my $value;
1233         $value = '-mips2' if ($target =~ /mips32/);
1234         $value = '-mips3' if ($target =~ /mips64/);
1235         unshift @{$config{cflags}}, $value;
1236         unshift @{$config{cxxflags}}, $value if $config{CXX};
1237 }
1238
1239 # If threads aren't disabled, check how possible they are
1240 unless ($disabled{threads}) {
1241     if ($auto_threads) {
1242         # Enabled by default, disable it forcibly if unavailable
1243         if ($target{thread_scheme} eq "(unknown)") {
1244             $disabled{threads} = "unavailable";
1245         }
1246     } else {
1247         # The user chose to enable threads explicitly, let's see
1248         # if there's a chance that's possible
1249         if ($target{thread_scheme} eq "(unknown)") {
1250             # If the user asked for "threads" and we don't have internal
1251             # knowledge how to do it, [s]he is expected to provide any
1252             # system-dependent compiler options that are necessary.  We
1253             # can't truly check that the given options are correct, but
1254             # we expect the user to know what [s]He is doing.
1255             if (!@{$user{CFLAGS}} && !@{$useradd{CFLAGS}}
1256                     && !@{$user{CPPDEFINES}} && !@{$useradd{CPPDEFINES}}) {
1257                 die "You asked for multi-threading support, but didn't\n"
1258                     ,"provide any system-specific compiler options\n";
1259             }
1260         }
1261     }
1262 }
1263
1264 # If threads still aren't disabled, add a C macro to ensure the source
1265 # code knows about it.  Any other flag is taken care of by the configs.
1266 unless($disabled{threads}) {
1267     push @{$config{openssl_thread_defines}}, "OPENSSL_THREADS";
1268 }
1269
1270 # With "deprecated" disable all deprecated features.
1271 if (defined($disabled{"deprecated"})) {
1272         $config{api} = $maxapi;
1273 }
1274
1275 my $no_shared_warn=0;
1276 if ($target{shared_target} eq "")
1277         {
1278         $no_shared_warn = 1
1279             if (!$disabled{shared} || !$disabled{"dynamic-engine"});
1280         $disabled{shared} = "no-shared-target";
1281         $disabled{pic} = $disabled{shared} = $disabled{"dynamic-engine"} =
1282             "no-shared-target";
1283         }
1284
1285 if ($disabled{"dynamic-engine"}) {
1286         push @{$config{openssl_other_defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
1287         $config{dynamic_engines} = 0;
1288 } else {
1289         push @{$config{openssl_other_defines}}, "OPENSSL_NO_STATIC_ENGINE";
1290         $config{dynamic_engines} = 1;
1291 }
1292
1293 unless ($disabled{asan}) {
1294     push @{$config{cflags}}, "-fsanitize=address";
1295     push @{$config{cxxflags}}, "-fsanitize=address" if $config{CXX};
1296 }
1297
1298 unless ($disabled{ubsan}) {
1299     # -DPEDANTIC or -fnosanitize=alignment may also be required on some
1300     # platforms.
1301     push @{$config{cflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all";
1302     push @{$config{cxxflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all"
1303         if $config{CXX};
1304 }
1305
1306 unless ($disabled{msan}) {
1307   push @{$config{cflags}}, "-fsanitize=memory";
1308   push @{$config{cxxflags}}, "-fsanitize=memory" if $config{CXX};
1309 }
1310
1311 unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
1312         && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
1313     push @{$config{cflags}}, "-fno-omit-frame-pointer", "-g";
1314     push @{$config{cxxflags}}, "-fno-omit-frame-pointer", "-g" if $config{CXX};
1315 }
1316 #
1317 # Platform fix-ups
1318 #
1319
1320 # This saves the build files from having to check
1321 if ($disabled{pic})
1322         {
1323         foreach (qw(shared_cflag shared_cxxflag shared_cppflag
1324                     shared_defines shared_includes shared_ldflag
1325                     module_cflags module_cxxflags module_cppflags
1326                     module_defines module_includes module_lflags))
1327                 {
1328                 delete $config{$_};
1329                 $target{$_} = "";
1330                 }
1331         }
1332 else
1333         {
1334         push @{$config{lib_defines}}, "OPENSSL_PIC";
1335         }
1336
1337 if ($target{sys_id} ne "")
1338         {
1339         push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
1340         }
1341
1342 unless ($disabled{asm}) {
1343     $target{cpuid_asm_src}=$table{DEFAULTS}->{cpuid_asm_src} if ($config{processor} eq "386");
1344     push @{$config{lib_defines}}, "OPENSSL_CPUID_OBJ" if ($target{cpuid_asm_src} ne "mem_clr.c");
1345
1346     $target{bn_asm_src} =~ s/\w+-gf2m.c// if (defined($disabled{ec2m}));
1347
1348     # bn-586 is the only one implementing bn_*_part_words
1349     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_PART_WORDS" if ($target{bn_asm_src} =~ /bn-586/);
1350     push @{$config{lib_defines}}, "OPENSSL_IA32_SSE2" if (!$disabled{sse2} && $target{bn_asm_src} =~ /86/);
1351
1352     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT" if ($target{bn_asm_src} =~ /-mont/);
1353     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT5" if ($target{bn_asm_src} =~ /-mont5/);
1354     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_GF2m" if ($target{bn_asm_src} =~ /-gf2m/);
1355
1356     if ($target{sha1_asm_src}) {
1357         push @{$config{lib_defines}}, "SHA1_ASM"   if ($target{sha1_asm_src} =~ /sx86/ || $target{sha1_asm_src} =~ /sha1/);
1358         push @{$config{lib_defines}}, "SHA256_ASM" if ($target{sha1_asm_src} =~ /sha256/);
1359         push @{$config{lib_defines}}, "SHA512_ASM" if ($target{sha1_asm_src} =~ /sha512/);
1360     }
1361     if ($target{rc4_asm_src} ne $table{DEFAULTS}->{rc4_asm_src}) {
1362         push @{$config{lib_defines}}, "RC4_ASM";
1363     }
1364     if ($target{md5_asm_src}) {
1365         push @{$config{lib_defines}}, "MD5_ASM";
1366     }
1367     $target{cast_asm_src}=$table{DEFAULTS}->{cast_asm_src} unless $disabled{pic}; # CAST assembler is not PIC
1368     if ($target{rmd160_asm_src}) {
1369         push @{$config{lib_defines}}, "RMD160_ASM";
1370     }
1371     if ($target{aes_asm_src}) {
1372         push @{$config{lib_defines}}, "AES_ASM" if ($target{aes_asm_src} =~ m/\baes-/);;
1373         # aes-ctr.fake is not a real file, only indication that assembler
1374         # module implements AES_ctr32_encrypt...
1375         push @{$config{lib_defines}}, "AES_CTR_ASM" if ($target{aes_asm_src} =~ s/\s*aes-ctr\.fake//);
1376         # aes-xts.fake indicates presence of AES_xts_[en|de]crypt...
1377         push @{$config{lib_defines}}, "AES_XTS_ASM" if ($target{aes_asm_src} =~ s/\s*aes-xts\.fake//);
1378         $target{aes_asm_src} =~ s/\s*(vpaes|aesni)-x86\.s//g if ($disabled{sse2});
1379         push @{$config{lib_defines}}, "VPAES_ASM" if ($target{aes_asm_src} =~ m/vpaes/);
1380         push @{$config{lib_defines}}, "BSAES_ASM" if ($target{aes_asm_src} =~ m/bsaes/);
1381     }
1382     if ($target{wp_asm_src} =~ /mmx/) {
1383         if ($config{processor} eq "386") {
1384             $target{wp_asm_src}=$table{DEFAULTS}->{wp_asm_src};
1385         } elsif (!$disabled{"whirlpool"}) {
1386             push @{$config{lib_defines}}, "WHIRLPOOL_ASM";
1387         }
1388     }
1389     if ($target{modes_asm_src} =~ /ghash-/) {
1390         push @{$config{lib_defines}}, "GHASH_ASM";
1391     }
1392     if ($target{ec_asm_src} =~ /ecp_nistz256/) {
1393         push @{$config{lib_defines}}, "ECP_NISTZ256_ASM";
1394     }
1395     if ($target{ec_asm_src} =~ /x25519/) {
1396         push @{$config{lib_defines}}, "X25519_ASM";
1397     }
1398     if ($target{padlock_asm_src} ne $table{DEFAULTS}->{padlock_asm_src}) {
1399         push @{$config{lib_defines}}, "PADLOCK_ASM";
1400     }
1401     if ($target{poly1305_asm_src} ne "") {
1402         push @{$config{lib_defines}}, "POLY1305_ASM";
1403     }
1404 }
1405
1406 my %predefined = compiler_predefined($config{CC});
1407
1408 # Check for makedepend capabilities.
1409 if (!$disabled{makedepend}) {
1410     if ($config{target} =~ /^(VC|vms)-/) {
1411         # For VC- and vms- targets, there's nothing more to do here.  The
1412         # functionality is hard coded in the corresponding build files for
1413         # cl (Windows) and CC/DECC (VMS).
1414     } elsif ($predefined{__GNUC__} >= 3) {
1415         # We know that GNU C version 3 and up as well as all clang
1416         # versions support dependency generation
1417         $config{makedepprog} = "\$(CROSS_COMPILE)$config{CC}";
1418     } else {
1419         # In all other cases, we look for 'makedepend', and disable the
1420         # capability if not found.
1421         $config{makedepprog} = which('makedepend');
1422         $disabled{makedepend} = "unavailable" unless $config{makedepprog};
1423     }
1424 }
1425
1426
1427 # Deal with bn_ops ###################################################
1428
1429 $config{bn_ll}                  =0;
1430 $config{export_var_as_fn}       =0;
1431 my $def_int="unsigned int";
1432 $config{rc4_int}                =$def_int;
1433 ($config{b64l},$config{b64},$config{b32})=(0,0,1);
1434
1435 my $count = 0;
1436 foreach (sort split(/\s+/,$target{bn_ops})) {
1437     $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
1438     $config{export_var_as_fn}=1                 if $_ eq 'EXPORT_VAR_AS_FN';
1439     $config{bn_ll}=1                            if $_ eq 'BN_LLONG';
1440     $config{rc4_int}="unsigned char"            if $_ eq 'RC4_CHAR';
1441     ($config{b64l},$config{b64},$config{b32})
1442         =(0,1,0)                                if $_ eq 'SIXTY_FOUR_BIT';
1443     ($config{b64l},$config{b64},$config{b32})
1444         =(1,0,0)                                if $_ eq 'SIXTY_FOUR_BIT_LONG';
1445     ($config{b64l},$config{b64},$config{b32})
1446         =(0,0,1)                                if $_ eq 'THIRTY_TWO_BIT';
1447 }
1448 die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
1449     if $count > 1;
1450
1451
1452 # Hack cflags for better warnings (dev option) #######################
1453
1454 # "Stringify" the C and C++ flags string.  This permits it to be made part of
1455 # a string and works as well on command lines.
1456 $config{cflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1457                         @{$config{cflags}} ];
1458 $config{cxxflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1459                           @{$config{cxxflags}} ] if $config{CXX};
1460
1461 if (defined($config{api})) {
1462     $config{openssl_api_defines} = [ "OPENSSL_MIN_API=".$apitable->{$config{api}} ];
1463     my $apiflag = sprintf("OPENSSL_API_COMPAT=%s", $apitable->{$config{api}});
1464     push @{$config{defines}}, $apiflag;
1465 }
1466
1467 if (defined($predefined{__clang__}) && !$disabled{asm}) {
1468     push @{$config{cflags}}, "-Qunused-arguments";
1469     push @{$config{cxxflags}}, "-Qunused-arguments" if $config{CXX};
1470 }
1471
1472 if ($strict_warnings)
1473         {
1474         my $wopt;
1475         my $gccver = $predefined{__GNUC__} // -1;
1476
1477         die "ERROR --strict-warnings requires gcc[>=4] or gcc-alike"
1478             unless $gccver >= 4;
1479         foreach $wopt (split /\s+/, $gcc_devteam_warn)
1480                 {
1481                 push @{$config{cflags}}, $wopt
1482                         unless grep { $_ eq $wopt } @{$config{cflags}};
1483                 push @{$config{cxxflags}}, $wopt
1484                         if ($config{CXX}
1485                             && !grep { $_ eq $wopt } @{$config{cxxflags}});
1486                 }
1487         if (defined($predefined{__clang__}))
1488                 {
1489                 foreach $wopt (split /\s+/, $clang_devteam_warn)
1490                         {
1491                         push @{$config{cflags}}, $wopt
1492                                 unless grep { $_ eq $wopt } @{$config{cflags}};
1493                         push @{$config{cxxflags}}, $wopt
1494                                 if ($config{CXX}
1495                                     && !grep { $_ eq $wopt } @{$config{cxxflags}});
1496                         }
1497                 }
1498         }
1499
1500 unless ($disabled{"crypto-mdebug-backtrace"})
1501         {
1502         foreach my $wopt (split /\s+/, $memleak_devteam_backtrace)
1503                 {
1504                 push @{$config{cflags}}, $wopt
1505                         unless grep { $_ eq $wopt } @{$config{cflags}};
1506                 push @{$config{cxxflags}}, $wopt
1507                         if ($config{CXX}
1508                             && !grep { $_ eq $wopt } @{$config{cxxflags}});
1509                 }
1510         if ($target =~ /^BSD-/)
1511                 {
1512                 push @{$config{ex_libs}}, "-lexecinfo";
1513                 }
1514         }
1515
1516 unless ($disabled{afalgeng}) {
1517     $config{afalgeng}="";
1518     if (grep { $_ eq 'afalgeng' } @{$target{enable}}) {
1519         my $minver = 4*10000 + 1*100 + 0;
1520         if ($config{CROSS_COMPILE} eq "") {
1521             my $verstr = `uname -r`;
1522             my ($ma, $mi1, $mi2) = split("\\.", $verstr);
1523             ($mi2) = $mi2 =~ /(\d+)/;
1524             my $ver = $ma*10000 + $mi1*100 + $mi2;
1525             if ($ver < $minver) {
1526                 $disabled{afalgeng} = "too-old-kernel";
1527             } else {
1528                 push @{$config{engdirs}}, "afalg";
1529             }
1530         } else {
1531             $disabled{afalgeng} = "cross-compiling";
1532         }
1533     } else {
1534         $disabled{afalgeng}  = "not-linux";
1535     }
1536 }
1537
1538 push @{$config{openssl_other_defines}}, "OPENSSL_NO_AFALGENG" if ($disabled{afalgeng});
1539
1540 # Finish up %config by appending things the user gave us on the command line
1541 # apart from "make variables"
1542 foreach (keys %useradd) {
1543     # The must all be lists, so we assert that here
1544     die "internal error: \$useradd{$_} isn't an ARRAY\n"
1545         unless ref $useradd{$_} eq 'ARRAY';
1546
1547     if (defined $config{$_}) {
1548         push @{$config{$_}}, @{$useradd{$_}};
1549     } else {
1550         $config{$_} = [ @{$useradd{$_}} ];
1551     }
1552 }
1553
1554 # ALL MODIFICATIONS TO %config and %target MUST BE DONE FROM HERE ON
1555
1556 # If we use the unified build, collect information from build.info files
1557 my %unified_info = ();
1558
1559 my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
1560 if ($builder eq "unified") {
1561     use with_fallback qw(Text::Template);
1562
1563     sub cleandir {
1564         my $base = shift;
1565         my $dir = shift;
1566         my $relativeto = shift || ".";
1567
1568         $dir = catdir($base,$dir) unless isabsolute($dir);
1569
1570         # Make sure the directories we're building in exists
1571         mkpath($dir);
1572
1573         my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
1574         #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
1575         return $res;
1576     }
1577
1578     sub cleanfile {
1579         my $base = shift;
1580         my $file = shift;
1581         my $relativeto = shift || ".";
1582
1583         $file = catfile($base,$file) unless isabsolute($file);
1584
1585         my $d = dirname($file);
1586         my $f = basename($file);
1587
1588         # Make sure the directories we're building in exists
1589         mkpath($d);
1590
1591         my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
1592         #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
1593         return $res;
1594     }
1595
1596     # Store the name of the template file we will build the build file from
1597     # in %config.  This may be useful for the build file itself.
1598     my @build_file_template_names =
1599         ( $builder_platform."-".$target{build_file}.".tmpl",
1600           $target{build_file}.".tmpl" );
1601     my @build_file_templates = ();
1602
1603     # First, look in the user provided directory, if given
1604     if (defined env($local_config_envname)) {
1605         @build_file_templates =
1606             map {
1607                 if ($^O eq 'VMS') {
1608                     # VMS environment variables are logical names,
1609                     # which can be used as is
1610                     $local_config_envname . ':' . $_;
1611                 } else {
1612                     catfile(env($local_config_envname), $_);
1613                 }
1614             }
1615             @build_file_template_names;
1616     }
1617     # Then, look in our standard directory
1618     push @build_file_templates,
1619         ( map { cleanfile($srcdir, catfile("Configurations", $_), $blddir) }
1620           @build_file_template_names );
1621
1622     my $build_file_template;
1623     for $_ (@build_file_templates) {
1624         $build_file_template = $_;
1625         last if -f $build_file_template;
1626
1627         $build_file_template = undef;
1628     }
1629     if (!defined $build_file_template) {
1630         die "*** Couldn't find any of:\n", join("\n", @build_file_templates), "\n";
1631     }
1632     $config{build_file_templates}
1633       = [ $build_file_template,
1634           cleanfile($srcdir, catfile("Configurations", "common.tmpl"),
1635                     $blddir) ];
1636
1637     my @build_infos = ( [ ".", "build.info" ] );
1638     foreach (@{$config{dirs}}) {
1639         push @build_infos, [ $_, "build.info" ]
1640             if (-f catfile($srcdir, $_, "build.info"));
1641     }
1642     foreach (@{$config{sdirs}}) {
1643         push @build_infos, [ catdir("crypto", $_), "build.info" ]
1644             if (-f catfile($srcdir, "crypto", $_, "build.info"));
1645     }
1646     foreach (@{$config{engdirs}}) {
1647         push @build_infos, [ catdir("engines", $_), "build.info" ]
1648             if (-f catfile($srcdir, "engines", $_, "build.info"));
1649     }
1650     foreach (@{$config{tdirs}}) {
1651         push @build_infos, [ catdir("test", $_), "build.info" ]
1652             if (-f catfile($srcdir, "test", $_, "build.info"));
1653     }
1654
1655     $config{build_infos} = [ ];
1656
1657     my %ordinals = ();
1658     foreach (@build_infos) {
1659         my $sourced = catdir($srcdir, $_->[0]);
1660         my $buildd = catdir($blddir, $_->[0]);
1661
1662         mkpath($buildd);
1663
1664         my $f = $_->[1];
1665         # The basic things we're trying to build
1666         my @programs = ();
1667         my @programs_install = ();
1668         my @libraries = ();
1669         my @libraries_install = ();
1670         my @engines = ();
1671         my @engines_install = ();
1672         my @scripts = ();
1673         my @scripts_install = ();
1674         my @extra = ();
1675         my @overrides = ();
1676         my @intermediates = ();
1677         my @rawlines = ();
1678
1679         my %sources = ();
1680         my %shared_sources = ();
1681         my %includes = ();
1682         my %depends = ();
1683         my %renames = ();
1684         my %sharednames = ();
1685         my %generate = ();
1686
1687         # We want to detect configdata.pm in the source tree, so we
1688         # don't use it if the build tree is different.
1689         my $src_configdata = cleanfile($srcdir, "configdata.pm", $blddir);
1690
1691         push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
1692         my $template =
1693             Text::Template->new(TYPE => 'FILE',
1694                                 SOURCE => catfile($sourced, $f),
1695                                 PREPEND => qq{use lib "$FindBin::Bin/util/perl";});
1696         die "Something went wrong with $sourced/$f: $!\n" unless $template;
1697         my @text =
1698             split /^/m,
1699             $template->fill_in(HASH => { config => \%config,
1700                                          target => \%target,
1701                                          disabled => \%disabled,
1702                                          withargs => \%withargs,
1703                                          builddir => abs2rel($buildd, $blddir),
1704                                          sourcedir => abs2rel($sourced, $blddir),
1705                                          buildtop => abs2rel($blddir, $blddir),
1706                                          sourcetop => abs2rel($srcdir, $blddir) },
1707                                DELIMITERS => [ "{-", "-}" ]);
1708
1709         # The top item of this stack has the following values
1710         # -2 positive already run and we found ELSE (following ELSIF should fail)
1711         # -1 positive already run (skip until ENDIF)
1712         # 0 negatives so far (if we're at a condition, check it)
1713         # 1 last was positive (don't skip lines until next ELSE, ELSIF or ENDIF)
1714         # 2 positive ELSE (following ELSIF should fail)
1715         my @skip = ();
1716         collect_information(
1717             collect_from_array([ @text ],
1718                                qr/\\$/ => sub { my $l1 = shift; my $l2 = shift;
1719                                                 $l1 =~ s/\\$//; $l1.$l2 }),
1720             # Info we're looking for
1721             qr/^\s*IF\[((?:\\.|[^\\\]])*)\]\s*$/
1722             => sub {
1723                 if (! @skip || $skip[$#skip] > 0) {
1724                     push @skip, !! $1;
1725                 } else {
1726                     push @skip, -1;
1727                 }
1728             },
1729             qr/^\s*ELSIF\[((?:\\.|[^\\\]])*)\]\s*$/
1730             => sub { die "ELSIF out of scope" if ! @skip;
1731                      die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
1732                      $skip[$#skip] = -1 if $skip[$#skip] != 0;
1733                      $skip[$#skip] = !! $1
1734                          if $skip[$#skip] == 0; },
1735             qr/^\s*ELSE\s*$/
1736             => sub { die "ELSE out of scope" if ! @skip;
1737                      $skip[$#skip] = -2 if $skip[$#skip] != 0;
1738                      $skip[$#skip] = 2 if $skip[$#skip] == 0; },
1739             qr/^\s*ENDIF\s*$/
1740             => sub { die "ENDIF out of scope" if ! @skip;
1741                      pop @skip; },
1742             qr/^\s*PROGRAMS(_NO_INST)?\s*=\s*(.*)\s*$/
1743             => sub {
1744                 if (!@skip || $skip[$#skip] > 0) {
1745                     my $install = $1;
1746                     my @x = tokenize($2);
1747                     push @programs, @x;
1748                     push @programs_install, @x unless $install;
1749                 }
1750             },
1751             qr/^\s*LIBS(_NO_INST)?\s*=\s*(.*)\s*$/
1752             => sub {
1753                 if (!@skip || $skip[$#skip] > 0) {
1754                     my $install = $1;
1755                     my @x = tokenize($2);
1756                     push @libraries, @x;
1757                     push @libraries_install, @x unless $install;
1758                 }
1759             },
1760             qr/^\s*ENGINES(_NO_INST)?\s*=\s*(.*)\s*$/
1761             => sub {
1762                 if (!@skip || $skip[$#skip] > 0) {
1763                     my $install = $1;
1764                     my @x = tokenize($2);
1765                     push @engines, @x;
1766                     push @engines_install, @x unless $install;
1767                 }
1768             },
1769             qr/^\s*SCRIPTS(_NO_INST)?\s*=\s*(.*)\s*$/
1770             => sub {
1771                 if (!@skip || $skip[$#skip] > 0) {
1772                     my $install = $1;
1773                     my @x = tokenize($2);
1774                     push @scripts, @x;
1775                     push @scripts_install, @x unless $install;
1776                 }
1777             },
1778             qr/^\s*EXTRA\s*=\s*(.*)\s*$/
1779             => sub { push @extra, tokenize($1)
1780                          if !@skip || $skip[$#skip] > 0 },
1781             qr/^\s*OVERRIDES\s*=\s*(.*)\s*$/
1782             => sub { push @overrides, tokenize($1)
1783                          if !@skip || $skip[$#skip] > 0 },
1784
1785             qr/^\s*ORDINALS\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/,
1786             => sub { push @{$ordinals{$1}}, tokenize($2)
1787                          if !@skip || $skip[$#skip] > 0 },
1788             qr/^\s*SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1789             => sub { push @{$sources{$1}}, tokenize($2)
1790                          if !@skip || $skip[$#skip] > 0 },
1791             qr/^\s*SHARED_SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1792             => sub { push @{$shared_sources{$1}}, tokenize($2)
1793                          if !@skip || $skip[$#skip] > 0 },
1794             qr/^\s*INCLUDE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1795             => sub { push @{$includes{$1}}, tokenize($2)
1796                          if !@skip || $skip[$#skip] > 0 },
1797             qr/^\s*DEPEND\[((?:\\.|[^\\\]])*)\]\s*=\s*(.*)\s*$/
1798             => sub { push @{$depends{$1}}, tokenize($2)
1799                          if !@skip || $skip[$#skip] > 0 },
1800             qr/^\s*GENERATE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1801             => sub { push @{$generate{$1}}, $2
1802                          if !@skip || $skip[$#skip] > 0 },
1803             qr/^\s*RENAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1804             => sub { push @{$renames{$1}}, tokenize($2)
1805                          if !@skip || $skip[$#skip] > 0 },
1806             qr/^\s*SHARED_NAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1807             => sub { push @{$sharednames{$1}}, tokenize($2)
1808                          if !@skip || $skip[$#skip] > 0 },
1809             qr/^\s*BEGINRAW\[((?:\\.|[^\\\]])+)\]\s*$/
1810             => sub {
1811                 my $lineiterator = shift;
1812                 my $target_kind = $1;
1813                 while (defined $lineiterator->()) {
1814                     s|\R$||;
1815                     if (/^\s*ENDRAW\[((?:\\.|[^\\\]])+)\]\s*$/) {
1816                         die "ENDRAW doesn't match BEGINRAW"
1817                             if $1 ne $target_kind;
1818                         last;
1819                     }
1820                     next if @skip && $skip[$#skip] <= 0;
1821                     push @rawlines,  $_
1822                         if ($target_kind eq $target{build_file}
1823                             || $target_kind eq $target{build_file}."(".$builder_platform.")");
1824                 }
1825             },
1826             qr/^\s*(?:#.*)?$/ => sub { },
1827             "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
1828             "BEFORE" => sub {
1829                 if ($buildinfo_debug) {
1830                     print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
1831                     print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1832                 }
1833             },
1834             "AFTER" => sub {
1835                 if ($buildinfo_debug) {
1836                     print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1837                 }
1838             },
1839             );
1840         die "runaway IF?" if (@skip);
1841
1842         foreach (keys %renames) {
1843             die "$_ renamed to more than one thing: "
1844                 ,join(" ", @{$renames{$_}}),"\n"
1845                 if scalar @{$renames{$_}} > 1;
1846             my $dest = cleanfile($buildd, $_, $blddir);
1847             my $to = cleanfile($buildd, $renames{$_}->[0], $blddir);
1848             die "$dest renamed to more than one thing: "
1849                 ,$unified_info{rename}->{$dest}, $to
1850                 unless !defined($unified_info{rename}->{$dest})
1851                 or $unified_info{rename}->{$dest} eq $to;
1852             $unified_info{rename}->{$dest} = $to;
1853         }
1854
1855         foreach (@programs) {
1856             my $program = cleanfile($buildd, $_, $blddir);
1857             if ($unified_info{rename}->{$program}) {
1858                 $program = $unified_info{rename}->{$program};
1859             }
1860             $unified_info{programs}->{$program} = 1;
1861         }
1862
1863         foreach (@programs_install) {
1864             my $program = cleanfile($buildd, $_, $blddir);
1865             if ($unified_info{rename}->{$program}) {
1866                 $program = $unified_info{rename}->{$program};
1867             }
1868             $unified_info{install}->{programs}->{$program} = 1;
1869         }
1870
1871         foreach (@libraries) {
1872             my $library = cleanfile($buildd, $_, $blddir);
1873             if ($unified_info{rename}->{$library}) {
1874                 $library = $unified_info{rename}->{$library};
1875             }
1876             $unified_info{libraries}->{$library} = 1;
1877         }
1878
1879         foreach (@libraries_install) {
1880             my $library = cleanfile($buildd, $_, $blddir);
1881             if ($unified_info{rename}->{$library}) {
1882                 $library = $unified_info{rename}->{$library};
1883             }
1884             $unified_info{install}->{libraries}->{$library} = 1;
1885         }
1886
1887         die <<"EOF" if scalar @engines and !$config{dynamic_engines};
1888 ENGINES can only be used if configured with 'dynamic-engine'.
1889 This is usually a fault in a build.info file.
1890 EOF
1891         foreach (@engines) {
1892             my $library = cleanfile($buildd, $_, $blddir);
1893             if ($unified_info{rename}->{$library}) {
1894                 $library = $unified_info{rename}->{$library};
1895             }
1896             $unified_info{engines}->{$library} = 1;
1897         }
1898
1899         foreach (@engines_install) {
1900             my $library = cleanfile($buildd, $_, $blddir);
1901             if ($unified_info{rename}->{$library}) {
1902                 $library = $unified_info{rename}->{$library};
1903             }
1904             $unified_info{install}->{engines}->{$library} = 1;
1905         }
1906
1907         foreach (@scripts) {
1908             my $script = cleanfile($buildd, $_, $blddir);
1909             if ($unified_info{rename}->{$script}) {
1910                 $script = $unified_info{rename}->{$script};
1911             }
1912             $unified_info{scripts}->{$script} = 1;
1913         }
1914
1915         foreach (@scripts_install) {
1916             my $script = cleanfile($buildd, $_, $blddir);
1917             if ($unified_info{rename}->{$script}) {
1918                 $script = $unified_info{rename}->{$script};
1919             }
1920             $unified_info{install}->{scripts}->{$script} = 1;
1921         }
1922
1923         foreach (@extra) {
1924             my $extra = cleanfile($buildd, $_, $blddir);
1925             $unified_info{extra}->{$extra} = 1;
1926         }
1927
1928         foreach (@overrides) {
1929             my $override = cleanfile($buildd, $_, $blddir);
1930             $unified_info{overrides}->{$override} = 1;
1931         }
1932
1933         push @{$unified_info{rawlines}}, @rawlines;
1934
1935         unless ($disabled{shared}) {
1936             # Check sharednames.
1937             foreach (keys %sharednames) {
1938                 my $dest = cleanfile($buildd, $_, $blddir);
1939                 if ($unified_info{rename}->{$dest}) {
1940                     $dest = $unified_info{rename}->{$dest};
1941                 }
1942                 die "shared_name for $dest with multiple values: "
1943                     ,join(" ", @{$sharednames{$_}}),"\n"
1944                     if scalar @{$sharednames{$_}} > 1;
1945                 my $to = cleanfile($buildd, $sharednames{$_}->[0], $blddir);
1946                 die "shared_name found for a library $dest that isn't defined\n"
1947                     unless $unified_info{libraries}->{$dest};
1948                 die "shared_name for $dest with multiple values: "
1949                     ,$unified_info{sharednames}->{$dest}, ", ", $to
1950                     unless !defined($unified_info{sharednames}->{$dest})
1951                     or $unified_info{sharednames}->{$dest} eq $to;
1952                 $unified_info{sharednames}->{$dest} = $to;
1953             }
1954
1955             # Additionally, we set up sharednames for libraries that don't
1956             # have any, as themselves.  Only for libraries that aren't
1957             # explicitly static.
1958             foreach (grep !/\.a$/, keys %{$unified_info{libraries}}) {
1959                 if (!defined $unified_info{sharednames}->{$_}) {
1960                     $unified_info{sharednames}->{$_} = $_
1961                 }
1962             }
1963
1964             # Check that we haven't defined any library as both shared and
1965             # explicitly static.  That is forbidden.
1966             my @doubles = ();
1967             foreach (grep /\.a$/, keys %{$unified_info{libraries}}) {
1968                 (my $l = $_) =~ s/\.a$//;
1969                 push @doubles, $l if defined $unified_info{sharednames}->{$l};
1970             }
1971             die "these libraries are both explicitly static and shared:\n  ",
1972                 join(" ", @doubles), "\n"
1973                 if @doubles;
1974         }
1975
1976         foreach (keys %sources) {
1977             my $dest = $_;
1978             my $ddest = cleanfile($buildd, $_, $blddir);
1979             if ($unified_info{rename}->{$ddest}) {
1980                 $ddest = $unified_info{rename}->{$ddest};
1981             }
1982             foreach (@{$sources{$dest}}) {
1983                 my $s = cleanfile($sourced, $_, $blddir);
1984
1985                 # If it isn't in the source tree, we assume it's generated
1986                 # in the build tree
1987                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
1988                     $s = cleanfile($buildd, $_, $blddir);
1989                 }
1990                 # We recognise C++, C and asm files
1991                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
1992                     my $o = $_;
1993                     $o =~ s/\.[csS]$/.o/; # C and assembler
1994                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
1995                     $o = cleanfile($buildd, $o, $blddir);
1996                     $unified_info{sources}->{$ddest}->{$o} = 1;
1997                     $unified_info{sources}->{$o}->{$s} = 1;
1998                 } elsif ($s =~ /\.rc$/) {
1999                     # We also recognise resource files
2000                     my $o = $_;
2001                     $o =~ s/\.rc$/.res/; # Resource configuration
2002                     my $o = cleanfile($buildd, $o, $blddir);
2003                     $unified_info{sources}->{$ddest}->{$o} = 1;
2004                     $unified_info{sources}->{$o}->{$s} = 1;
2005                 } else {
2006                     $unified_info{sources}->{$ddest}->{$s} = 1;
2007                 }
2008             }
2009         }
2010
2011         foreach (keys %shared_sources) {
2012             my $dest = $_;
2013             my $ddest = cleanfile($buildd, $_, $blddir);
2014             if ($unified_info{rename}->{$ddest}) {
2015                 $ddest = $unified_info{rename}->{$ddest};
2016             }
2017             foreach (@{$shared_sources{$dest}}) {
2018                 my $s = cleanfile($sourced, $_, $blddir);
2019
2020                 # If it isn't in the source tree, we assume it's generated
2021                 # in the build tree
2022                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
2023                     $s = cleanfile($buildd, $_, $blddir);
2024                 }
2025
2026                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2027                     # We recognise C++, C and asm files
2028                     my $o = $_;
2029                     $o =~ s/\.[csS]$/.o/; # C and assembler
2030                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2031                     $o = cleanfile($buildd, $o, $blddir);
2032                     $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2033                     $unified_info{sources}->{$o}->{$s} = 1;
2034                 } elsif ($s =~ /\.rc$/) {
2035                     # We also recognise resource files
2036                     my $o = $_;
2037                     $o =~ s/\.rc$/.res/; # Resource configuration
2038                     my $o = cleanfile($buildd, $o, $blddir);
2039                     $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2040                     $unified_info{sources}->{$o}->{$s} = 1;
2041                 } elsif ($s =~ /\.(def|map|opt)$/) {
2042                     # We also recognise .def / .map / .opt files
2043                     # We know they are generated files
2044                     my $def = cleanfile($buildd, $s, $blddir);
2045                     $unified_info{shared_sources}->{$ddest}->{$def} = 1;
2046                 } else {
2047                     die "unrecognised source file type for shared library: $s\n";
2048                 }
2049             }
2050         }
2051
2052         foreach (keys %generate) {
2053             my $dest = $_;
2054             my $ddest = cleanfile($buildd, $_, $blddir);
2055             if ($unified_info{rename}->{$ddest}) {
2056                 $ddest = $unified_info{rename}->{$ddest};
2057             }
2058             die "more than one generator for $dest: "
2059                     ,join(" ", @{$generate{$_}}),"\n"
2060                     if scalar @{$generate{$_}} > 1;
2061             my @generator = split /\s+/, $generate{$dest}->[0];
2062             $generator[0] = cleanfile($sourced, $generator[0], $blddir),
2063             $unified_info{generate}->{$ddest} = [ @generator ];
2064         }
2065
2066         foreach (keys %depends) {
2067             my $dest = $_;
2068             my $ddest = $dest eq "" ? "" : cleanfile($sourced, $_, $blddir);
2069
2070             # If the destination doesn't exist in source, it can only be
2071             # a generated file in the build tree.
2072             if ($ddest ne "" && ($ddest eq $src_configdata || ! -f $ddest)) {
2073                 $ddest = cleanfile($buildd, $_, $blddir);
2074                 if ($unified_info{rename}->{$ddest}) {
2075                     $ddest = $unified_info{rename}->{$ddest};
2076                 }
2077             }
2078             foreach (@{$depends{$dest}}) {
2079                 my $d = cleanfile($sourced, $_, $blddir);
2080
2081                 # If we know it's generated, or assume it is because we can't
2082                 # find it in the source tree, we set file we depend on to be
2083                 # in the build tree rather than the source tree, and assume
2084                 # and that there are lines to build it in a BEGINRAW..ENDRAW
2085                 # section or in the Makefile template.
2086                 if ($d eq $src_configdata
2087                     || ! -f $d
2088                     || (grep { $d eq $_ }
2089                         map { cleanfile($srcdir, $_, $blddir) }
2090                         grep { /\.h$/ } keys %{$unified_info{generate}})) {
2091                     $d = cleanfile($buildd, $_, $blddir);
2092                 }
2093                 # Take note if the file to depend on is being renamed
2094                 # Take extra care with files ending with .a, they should
2095                 # be treated without that extension, and the extension
2096                 # should be added back after treatment.
2097                 $d =~ /(\.a)?$/;
2098                 my $e = $1 // "";
2099                 $d = $`;
2100                 if ($unified_info{rename}->{$d}) {
2101                     $d = $unified_info{rename}->{$d};
2102                 }
2103                 $d .= $e;
2104                 $unified_info{depends}->{$ddest}->{$d} = 1;
2105             }
2106         }
2107
2108         foreach (keys %includes) {
2109             my $dest = $_;
2110             my $ddest = cleanfile($sourced, $_, $blddir);
2111
2112             # If the destination doesn't exist in source, it can only be
2113             # a generated file in the build tree.
2114             if ($ddest eq $src_configdata || ! -f $ddest) {
2115                 $ddest = cleanfile($buildd, $_, $blddir);
2116                 if ($unified_info{rename}->{$ddest}) {
2117                     $ddest = $unified_info{rename}->{$ddest};
2118                 }
2119             }
2120             foreach (@{$includes{$dest}}) {
2121                 my $is = cleandir($sourced, $_, $blddir);
2122                 my $ib = cleandir($buildd, $_, $blddir);
2123                 push @{$unified_info{includes}->{$ddest}->{source}}, $is
2124                     unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
2125                 push @{$unified_info{includes}->{$ddest}->{build}}, $ib
2126                     unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
2127             }
2128         }
2129     }
2130
2131     my $ordinals_text = join(', ', sort keys %ordinals);
2132     warn <<"EOF" if $ordinals_text;
2133
2134 WARNING: ORDINALS were specified for $ordinals_text
2135 They are ignored and should be replaced with a combination of GENERATE,
2136 DEPEND and SHARED_SOURCE.
2137 EOF
2138
2139     # Massage the result
2140
2141     # If we depend on a header file or a perl module, add an inclusion of
2142     # its directory to allow smoothe inclusion
2143     foreach my $dest (keys %{$unified_info{depends}}) {
2144         next if $dest eq "";
2145         foreach my $d (keys %{$unified_info{depends}->{$dest}}) {
2146             next unless $d =~ /\.(h|pm)$/;
2147             my $i = dirname($d);
2148             my $spot =
2149                 $d eq "configdata.pm" || defined($unified_info{generate}->{$d})
2150                 ? 'build' : 'source';
2151             push @{$unified_info{includes}->{$dest}->{$spot}}, $i
2152                 unless grep { $_ eq $i } @{$unified_info{includes}->{$dest}->{$spot}};
2153         }
2154     }
2155
2156     # Trickle down includes placed on libraries, engines and programs to
2157     # their sources (i.e. object files)
2158     foreach my $dest (keys %{$unified_info{engines}},
2159                       keys %{$unified_info{libraries}},
2160                       keys %{$unified_info{programs}}) {
2161         foreach my $k (("source", "build")) {
2162             next unless defined($unified_info{includes}->{$dest}->{$k});
2163             my @incs = reverse @{$unified_info{includes}->{$dest}->{$k}};
2164             foreach my $obj (grep /\.o$/,
2165                              (keys %{$unified_info{sources}->{$dest}},
2166                               keys %{$unified_info{shared_sources}->{$dest}})) {
2167                 foreach my $inc (@incs) {
2168                     unshift @{$unified_info{includes}->{$obj}->{$k}}, $inc
2169                         unless grep { $_ eq $inc } @{$unified_info{includes}->{$obj}->{$k}};
2170                 }
2171             }
2172         }
2173         delete $unified_info{includes}->{$dest};
2174     }
2175
2176     ### Make unified_info a bit more efficient
2177     # One level structures
2178     foreach (("programs", "libraries", "engines", "scripts", "extra", "overrides")) {
2179         $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
2180     }
2181     # Two level structures
2182     foreach my $l1 (("install", "sources", "shared_sources", "ldadd", "depends")) {
2183         foreach my $l2 (sort keys %{$unified_info{$l1}}) {
2184             $unified_info{$l1}->{$l2} =
2185                 [ sort keys %{$unified_info{$l1}->{$l2}} ];
2186         }
2187     }
2188     # Includes
2189     foreach my $dest (sort keys %{$unified_info{includes}}) {
2190         if (defined($unified_info{includes}->{$dest}->{build})) {
2191             my @source_includes = ();
2192             @source_includes = ( @{$unified_info{includes}->{$dest}->{source}} )
2193                 if defined($unified_info{includes}->{$dest}->{source});
2194             $unified_info{includes}->{$dest} =
2195                 [ @{$unified_info{includes}->{$dest}->{build}} ];
2196             foreach my $inc (@source_includes) {
2197                 push @{$unified_info{includes}->{$dest}}, $inc
2198                     unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
2199             }
2200         } else {
2201             $unified_info{includes}->{$dest} =
2202                 [ @{$unified_info{includes}->{$dest}->{source}} ];
2203         }
2204     }
2205 }
2206
2207 # For the schemes that need it, we provide the old *_obj configs
2208 # from the *_asm_obj ones
2209 foreach (grep /_(asm|aux)_src$/, keys %target) {
2210     my $src = $_;
2211     (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
2212     $target{$obj} = $target{$src};
2213     $target{$obj} =~ s/\.[csS]\b/.o/g; # C and assembler
2214     $target{$obj} =~ s/\.(cc|cpp)\b/_cc.o/g; # C++
2215 }
2216
2217 # Write down our configuration where it fits #########################
2218
2219 print "Creating configdata.pm\n";
2220 open(OUT,">configdata.pm") || die "unable to create configdata.pm: $!\n";
2221 print OUT <<"EOF";
2222 #! $config{HASHBANGPERL}
2223
2224 package configdata;
2225
2226 use strict;
2227 use warnings;
2228
2229 use Exporter;
2230 #use vars qw(\@ISA \@EXPORT);
2231 our \@ISA = qw(Exporter);
2232 our \@EXPORT = qw(\%config \%target \%disabled \%withargs \%unified_info \@disablables);
2233
2234 EOF
2235 print OUT "our %config = (\n";
2236 foreach (sort keys %config) {
2237     if (ref($config{$_}) eq "ARRAY") {
2238         print OUT "  ", $_, " => [ ", join(", ",
2239                                            map { quotify("perl", $_) }
2240                                            @{$config{$_}}), " ],\n";
2241     } elsif (ref($config{$_}) eq "HASH") {
2242         print OUT "  ", $_, " => {";
2243         if (scalar keys %{$config{$_}} > 0) {
2244             print OUT "\n";
2245             foreach my $key (sort keys %{$config{$_}}) {
2246                 print OUT "      ",
2247                     join(" => ",
2248                          quotify("perl", $key),
2249                          defined $config{$_}->{$key}
2250                              ? quotify("perl", $config{$_}->{$key})
2251                              : "undef");
2252                 print OUT ",\n";
2253             }
2254             print OUT "  ";
2255         }
2256         print OUT "},\n";
2257     } else {
2258         print OUT "  ", $_, " => ", quotify("perl", $config{$_}), ",\n"
2259     }
2260 }
2261 print OUT <<"EOF";
2262 );
2263
2264 EOF
2265 print OUT "our %target = (\n";
2266 foreach (sort keys %target) {
2267     if (ref($target{$_}) eq "ARRAY") {
2268         print OUT "  ", $_, " => [ ", join(", ",
2269                                            map { quotify("perl", $_) }
2270                                            @{$target{$_}}), " ],\n";
2271     } else {
2272         print OUT "  ", $_, " => ", quotify("perl", $target{$_}), ",\n"
2273     }
2274 }
2275 print OUT <<"EOF";
2276 );
2277
2278 EOF
2279 print OUT "our \%available_protocols = (\n";
2280 print OUT "  tls => [ ", join(", ", map { quotify("perl", $_) } @tls), " ],\n";
2281 print OUT "  dtls => [ ", join(", ", map { quotify("perl", $_) } @dtls), " ],\n";
2282 print OUT <<"EOF";
2283 );
2284
2285 EOF
2286 print OUT "our \@disablables = (\n";
2287 foreach (@disablables) {
2288     print OUT "  ", quotify("perl", $_), ",\n";
2289 }
2290 print OUT <<"EOF";
2291 );
2292
2293 EOF
2294 print OUT "our \%disabled = (\n";
2295 foreach (sort keys %disabled) {
2296     print OUT "  ", quotify("perl", $_), " => ", quotify("perl", $disabled{$_}), ",\n";
2297 }
2298 print OUT <<"EOF";
2299 );
2300
2301 EOF
2302 print OUT "our %withargs = (\n";
2303 foreach (sort keys %withargs) {
2304     if (ref($withargs{$_}) eq "ARRAY") {
2305         print OUT "  ", $_, " => [ ", join(", ",
2306                                            map { quotify("perl", $_) }
2307                                            @{$withargs{$_}}), " ],\n";
2308     } else {
2309         print OUT "  ", $_, " => ", quotify("perl", $withargs{$_}), ",\n"
2310     }
2311 }
2312 print OUT <<"EOF";
2313 );
2314
2315 EOF
2316 if ($builder eq "unified") {
2317     my $recurse;
2318     $recurse = sub {
2319         my $indent = shift;
2320         foreach (@_) {
2321             if (ref $_ eq "ARRAY") {
2322                 print OUT " "x$indent, "[\n";
2323                 foreach (@$_) {
2324                     $recurse->($indent + 4, $_);
2325                 }
2326                 print OUT " "x$indent, "],\n";
2327             } elsif (ref $_ eq "HASH") {
2328                 my %h = %$_;
2329                 print OUT " "x$indent, "{\n";
2330                 foreach (sort keys %h) {
2331                     if (ref $h{$_} eq "") {
2332                         print OUT " "x($indent + 4), quotify("perl", $_), " => ", quotify("perl", $h{$_}), ",\n";
2333                     } else {
2334                         print OUT " "x($indent + 4), quotify("perl", $_), " =>\n";
2335                         $recurse->($indent + 8, $h{$_});
2336                     }
2337                 }
2338                 print OUT " "x$indent, "},\n";
2339             } else {
2340                 print OUT " "x$indent, quotify("perl", $_), ",\n";
2341             }
2342         }
2343     };
2344     print OUT "our %unified_info = (\n";
2345     foreach (sort keys %unified_info) {
2346         if (ref $unified_info{$_} eq "") {
2347             print OUT " "x4, quotify("perl", $_), " => ", quotify("perl", $unified_info{$_}), ",\n";
2348         } else {
2349             print OUT " "x4, quotify("perl", $_), " =>\n";
2350             $recurse->(8, $unified_info{$_});
2351         }
2352     }
2353     print OUT <<"EOF";
2354 );
2355
2356 EOF
2357 }
2358 print OUT
2359     "# The following data is only used when this files is use as a script\n";
2360 print OUT "my \@makevars = (\n";
2361 foreach (sort keys %user) {
2362     print OUT "    '",$_,"',\n";
2363 }
2364 print OUT ");\n";
2365 print OUT "my \%disabled_info = (\n";
2366 foreach my $what (sort keys %disabled_info) {
2367     print OUT "    '$what' => {\n";
2368     foreach my $info (sort keys %{$disabled_info{$what}}) {
2369         if (ref $disabled_info{$what}->{$info} eq 'ARRAY') {
2370             print OUT "        $info => [ ",
2371                 join(', ', map { "'$_'" } @{$disabled_info{$what}->{$info}}),
2372                 " ],\n";
2373         } else {
2374             print OUT "        $info => '", $disabled_info{$what}->{$info},
2375                 "',\n";
2376         }
2377     }
2378     print OUT "    },\n";
2379 }
2380 print OUT ");\n";
2381 print OUT 'my @user_crossable = qw( ', join (' ', @user_crossable), " );\n";
2382 print OUT << 'EOF';
2383 # If run directly, we can give some answers, and even reconfigure
2384 unless (caller) {
2385     use Getopt::Long;
2386     use File::Spec::Functions;
2387     use File::Basename;
2388     use Pod::Usage;
2389
2390     my $here = dirname($0);
2391
2392     my $dump = undef;
2393     my $cmdline = undef;
2394     my $options = undef;
2395     my $target = undef;
2396     my $envvars = undef;
2397     my $makevars = undef;
2398     my $buildparams = undef;
2399     my $reconf = undef;
2400     my $verbose = undef;
2401     my $help = undef;
2402     my $man = undef;
2403     GetOptions('dump|d'                 => \$dump,
2404                'command-line|c'         => \$cmdline,
2405                'options|o'              => \$options,
2406                'target|t'               => \$target,
2407                'environment|e'          => \$envvars,
2408                'make-variables|m'       => \$makevars,
2409                'build-parameters|b'     => \$buildparams,
2410                'reconfigure|reconf|r'   => \$reconf,
2411                'verbose|v'              => \$verbose,
2412                'help'                   => \$help,
2413                'man'                    => \$man)
2414         or die "Errors in command line arguments\n";
2415
2416     unless ($dump || $cmdline || $options || $target || $envvars || $makevars
2417             || $buildparams || $reconf || $verbose || $help || $man) {
2418         print STDERR <<"_____";
2419 You must give at least one option.
2420 For more information, do '$0 --help'
2421 _____
2422         exit(2);
2423     }
2424
2425     if ($help) {
2426         pod2usage(-exitval => 0,
2427                   -verbose => 1);
2428     }
2429     if ($man) {
2430         pod2usage(-exitval => 0,
2431                   -verbose => 2);
2432     }
2433     if ($dump || $cmdline) {
2434         print "\nCommand line (with current working directory = $here):\n\n";
2435         print '    ',join(' ',
2436                           $config{perl},
2437                           catfile($config{sourcedir}, 'Configure'),
2438                           @{$config{perlargv}}), "\n";
2439         print "\nPerl information:\n\n";
2440         print '    ',$config{perl_cmd},"\n";
2441         print '    ',$config{perl_version},' for ',$config{perl_archname},"\n";
2442     }
2443     if ($dump || $options) {
2444         my $longest = 0;
2445         my $longest2 = 0;
2446         foreach my $what (@disablables) {
2447             $longest = length($what) if $longest < length($what);
2448             $longest2 = length($disabled{$what})
2449                 if $disabled{$what} && $longest2 < length($disabled{$what});
2450         }
2451         print "\nEnabled features:\n\n";
2452         foreach my $what (@disablables) {
2453             print "    $what\n" unless $disabled{$what};
2454         }
2455         print "\nDisabled features:\n\n";
2456         foreach my $what (@disablables) {
2457             if ($disabled{$what}) {
2458                 print "    $what", ' ' x ($longest - length($what) + 1),
2459                     "[$disabled{$what}]", ' ' x ($longest2 - length($disabled{$what}) + 1);
2460                 print $disabled_info{$what}->{macro}
2461                     if $disabled_info{$what}->{macro};
2462                 print ' (skip ',
2463                     join(', ', @{$disabled_info{$what}->{skipped}}),
2464                     ')'
2465                     if $disabled_info{$what}->{skipped};
2466                 print "\n";
2467             }
2468         }
2469     }
2470     if ($dump || $target) {
2471         print "\nConfig target attributes:\n\n";
2472         foreach (sort keys %target) {
2473             next if $_ =~ m|^_| || $_ eq 'template';
2474             my $quotify = sub {
2475                 map { (my $x = $_) =~ s|([\\\$\@"])|\\$1|g; "\"$x\""} @_;
2476             };
2477             print '    ', $_, ' => ';
2478             if (ref($target{$_}) eq "ARRAY") {
2479                 print '[ ', join(', ', $quotify->(@{$target{$_}})), " ],\n";
2480             } else {
2481                 print $quotify->($target{$_}), ",\n"
2482             }
2483         }
2484     }
2485     if ($dump || $envvars) {
2486         print "\nRecorded environment:\n\n";
2487         foreach (sort keys %{$config{perlenv}}) {
2488             print '    ',$_,' = ',($config{perlenv}->{$_} || ''),"\n";
2489         }
2490     }
2491     if ($dump || $makevars) {
2492         print "\nMakevars:\n\n";
2493         foreach my $var (@makevars) {
2494             my $prefix = '';
2495             $prefix = $config{CROSS_COMPILE}
2496                 if grep { $var eq $_ } @user_crossable;
2497             $prefix //= '';
2498             print '    ',$var,' ' x (16 - length $var),'= ',
2499                 (ref $config{$var} eq 'ARRAY'
2500                  ? join(' ', @{$config{$var}})
2501                  : $prefix.$config{$var}),
2502                 "\n"
2503                 if defined $config{$var};
2504         }
2505
2506         my @buildfile = ($config{builddir}, $config{build_file});
2507         unshift @buildfile, $here
2508             unless file_name_is_absolute($config{builddir});
2509         my $buildfile = canonpath(catdir(@buildfile));
2510         print <<"_____";
2511
2512 NOTE: These variables only represent the configuration view.  The build file
2513 template may have processed these variables further, please have a look at the
2514 build file for more exact data:
2515     $buildfile
2516 _____
2517     }
2518     if ($dump || $buildparams) {
2519         my @buildfile = ($config{builddir}, $config{build_file});
2520         unshift @buildfile, $here
2521             unless file_name_is_absolute($config{builddir});
2522         print "\nbuild file:\n\n";
2523         print "    ", canonpath(catfile(@buildfile)),"\n";
2524
2525         print "\nbuild file templates:\n\n";
2526         foreach (@{$config{build_file_templates}}) {
2527             my @tmpl = ($_);
2528             unshift @tmpl, $here
2529                 unless file_name_is_absolute($config{sourcedir});
2530             print '    ',canonpath(catfile(@tmpl)),"\n";
2531         }
2532     }
2533     if ($reconf) {
2534         if ($verbose) {
2535             print 'Reconfiguring with: ', join(' ',@{$config{perlargv}}), "\n";
2536             foreach (sort keys %{$config{perlenv}}) {
2537                 print '    ',$_,' = ',($config{perlenv}->{$_} || ""),"\n";
2538             }
2539         }
2540
2541         chdir $here;
2542         exec $^X,catfile($config{sourcedir}, 'Configure'),'reconf';
2543     }
2544 }
2545
2546 1;
2547
2548 __END__
2549
2550 =head1 NAME
2551
2552 configdata.pm - configuration data for OpenSSL builds
2553
2554 =head1 SYNOPSIS
2555
2556 Interactive:
2557
2558   perl configdata.pm [options]
2559
2560 As data bank module:
2561
2562   use configdata;
2563
2564 =head1 DESCRIPTION
2565
2566 This module can be used in two modes, interactively and as a module containing
2567 all the data recorded by OpenSSL's Configure script.
2568
2569 When used interactively, simply run it as any perl script, with at least one
2570 option, and you will get the information you ask for.  See L</OPTIONS> below.
2571
2572 When loaded as a module, you get a few databanks with useful information to
2573 perform build related tasks.  The databanks are:
2574
2575     %config             Configured things.
2576     %target             The OpenSSL config target with all inheritances
2577                         resolved.
2578     %disabled           The features that are disabled.
2579     @disablables        The list of features that can be disabled.
2580     %withargs           All data given through --with-THING options.
2581     %unified_info       All information that was computed from the build.info
2582                         files.
2583
2584 =head1 OPTIONS
2585
2586 =over 4
2587
2588 =item B<--help>
2589
2590 Print a brief help message and exit.
2591
2592 =item B<--man>
2593
2594 Print the manual page and exit.
2595
2596 =item B<--dump> | B<-d>
2597
2598 Print all relevant configuration data.  This is equivalent to B<--command-line>
2599 B<--options> B<--target> B<--environment> B<--make-variables>
2600 B<--build-parameters>.
2601
2602 =item B<--command-line> | B<-c>
2603
2604 Print the current configuration command line.
2605
2606 =item B<--options> | B<-o>
2607
2608 Print the features, both enabled and disabled, and display defined macro and
2609 skipped directories where applicable.
2610
2611 =item B<--target> | B<-t>
2612
2613 Print the config attributes for this config target.
2614
2615 =item B<--environment> | B<-e>
2616
2617 Print the environment variables and their values at the time of configuration.
2618
2619 =item B<--make-variables> | B<-m>
2620
2621 Print the main make variables generated in the current configuration
2622
2623 =item B<--build-parameters> | B<-b>
2624
2625 Print the build parameters, i.e. build file and build file templates.
2626
2627 =item B<--reconfigure> | B<--reconf> | B<-r>
2628
2629 Redo the configuration.
2630
2631 =item B<--verbose> | B<-v>
2632
2633 Verbose output.
2634
2635 =back
2636
2637 =cut
2638
2639 EOF
2640 close(OUT);
2641 if ($builder_platform eq 'unix') {
2642     my $mode = (0755 & ~umask);
2643     chmod $mode, 'configdata.pm'
2644         or warn sprintf("WARNING: Couldn't change mode for 'configdata.pm' to 0%03o: %s\n",$mode,$!);
2645 }
2646
2647 my %builders = (
2648     unified => sub {
2649         print 'Creating ',$target{build_file},"\n";
2650         run_dofile(catfile($blddir, $target{build_file}),
2651                    @{$config{build_file_templates}});
2652     },
2653     );
2654
2655 $builders{$builder}->($builder_platform, @builder_opts);
2656
2657 print <<"EOF" if ($disabled{threads} eq "unavailable");
2658
2659 The library could not be configured for supporting multi-threaded
2660 applications as the compiler options required on this system are not known.
2661 See file INSTALL for details if you need multi-threading.
2662 EOF
2663
2664 print <<"EOF" if ($no_shared_warn);
2665
2666 The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
2667 platform, so we will pretend you gave the option 'no-pic', which also disables
2668 'shared' and 'dynamic-engine'.  If you know how to implement shared libraries
2669 or position independent code, please let us know (but please first make sure
2670 you have tried with a current version of OpenSSL).
2671 EOF
2672
2673 print <<"EOF";
2674
2675 **********************************************************************
2676 ***                                                                ***
2677 ***   If you want to report a building issue, please include the   ***
2678 ***   output from this command:                                    ***
2679 ***                                                                ***
2680 ***     perl configdata.pm --dump                                  ***
2681 ***                                                                ***
2682 **********************************************************************
2683 EOF
2684
2685 exit(0);
2686
2687 ######################################################################
2688 #
2689 # Helpers and utility functions
2690 #
2691
2692 # Configuration file reading #########################################
2693
2694 # Note: All of the helper functions are for lazy evaluation.  They all
2695 # return a CODE ref, which will return the intended value when evaluated.
2696 # Thus, whenever there's mention of a returned value, it's about that
2697 # intended value.
2698
2699 # Helper function to implement conditional inheritance depending on the
2700 # value of $disabled{asm}.  Used in inherit_from values as follows:
2701 #
2702 #      inherit_from => [ "template", asm("asm_tmpl") ]
2703 #
2704 sub asm {
2705     my @x = @_;
2706     sub {
2707         $disabled{asm} ? () : @x;
2708     }
2709 }
2710
2711 # Helper function to implement conditional value variants, with a default
2712 # plus additional values based on the value of $config{build_type}.
2713 # Arguments are given in hash table form:
2714 #
2715 #       picker(default => "Basic string: ",
2716 #              debug   => "debug",
2717 #              release => "release")
2718 #
2719 # When configuring with --debug, the resulting string will be
2720 # "Basic string: debug", and when not, it will be "Basic string: release"
2721 #
2722 # This can be used to create variants of sets of flags according to the
2723 # build type:
2724 #
2725 #       cflags => picker(default => "-Wall",
2726 #                        debug   => "-g -O0",
2727 #                        release => "-O3")
2728 #
2729 sub picker {
2730     my %opts = @_;
2731     return sub { add($opts{default} || (),
2732                      $opts{$config{build_type}} || ())->(); }
2733 }
2734
2735 # Helper function to combine several values of different types into one.
2736 # This is useful if you want to combine a string with the result of a
2737 # lazy function, such as:
2738 #
2739 #       cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
2740 #
2741 sub combine {
2742     my @stuff = @_;
2743     return sub { add(@stuff)->(); }
2744 }
2745
2746 # Helper function to implement conditional values depending on the value
2747 # of $disabled{threads}.  Can be used as follows:
2748 #
2749 #       cflags => combine("-Wall", threads("-pthread"))
2750 #
2751 sub threads {
2752     my @flags = @_;
2753     return sub { add($disabled{threads} ? () : @flags)->(); }
2754 }
2755
2756
2757
2758 our $add_called = 0;
2759 # Helper function to implement adding values to already existing configuration
2760 # values.  It handles elements that are ARRAYs, CODEs and scalars
2761 sub _add {
2762     my $separator = shift;
2763
2764     # If there's any ARRAY in the collection of values OR the separator
2765     # is undef, we will return an ARRAY of combined values, otherwise a
2766     # string of joined values with $separator as the separator.
2767     my $found_array = !defined($separator);
2768
2769     my @values =
2770         map {
2771             my $res = $_;
2772             while (ref($res) eq "CODE") {
2773                 $res = $res->();
2774             }
2775             if (defined($res)) {
2776                 if (ref($res) eq "ARRAY") {
2777                     $found_array = 1;
2778                     @$res;
2779                 } else {
2780                     $res;
2781                 }
2782             } else {
2783                 ();
2784             }
2785     } (@_);
2786
2787     $add_called = 1;
2788
2789     if ($found_array) {
2790         [ @values ];
2791     } else {
2792         join($separator, grep { defined($_) && $_ ne "" } @values);
2793     }
2794 }
2795 sub add_before {
2796     my $separator = " ";
2797     if (ref($_[$#_]) eq "HASH") {
2798         my $opts = pop;
2799         $separator = $opts->{separator};
2800     }
2801     my @x = @_;
2802     sub { _add($separator, @x, @_) };
2803 }
2804 sub add {
2805     my $separator = " ";
2806     if (ref($_[$#_]) eq "HASH") {
2807         my $opts = pop;
2808         $separator = $opts->{separator};
2809     }
2810     my @x = @_;
2811     sub { _add($separator, @_, @x) };
2812 }
2813
2814 sub read_eval_file {
2815     my $fname = shift;
2816     my $content;
2817     my @result;
2818
2819     open F, "< $fname" or die "Can't open '$fname': $!\n";
2820     {
2821         undef local $/;
2822         $content = <F>;
2823     }
2824     close F;
2825     {
2826         local $@;
2827
2828         @result = ( eval $content );
2829         warn $@ if $@;
2830     }
2831     return wantarray ? @result : $result[0];
2832 }
2833
2834 # configuration reader, evaluates the input file as a perl script and expects
2835 # it to fill %targets with target configurations.  Those are then added to
2836 # %table.
2837 sub read_config {
2838     my $fname = shift;
2839     my %targets;
2840
2841     {
2842         # Protect certain tables from tampering
2843         local %table = ();
2844
2845         %targets = read_eval_file($fname);
2846     }
2847     my %preexisting = ();
2848     foreach (sort keys %targets) {
2849         $preexisting{$_} = 1 if $table{$_};
2850     }
2851     die <<"EOF",
2852 The following config targets from $fname
2853 shadow pre-existing config targets with the same name:
2854 EOF
2855         map { "  $_\n" } sort keys %preexisting
2856         if %preexisting;
2857
2858
2859     # For each target, check that it's configured with a hash table.
2860     foreach (keys %targets) {
2861         if (ref($targets{$_}) ne "HASH") {
2862             if (ref($targets{$_}) eq "") {
2863                 warn "Deprecated target configuration for $_, ignoring...\n";
2864             } else {
2865                 warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
2866             }
2867             delete $targets{$_};
2868         } else {
2869             $targets{$_}->{_conf_fname_int} = add([ $fname ]);
2870         }
2871     }
2872
2873     %table = (%table, %targets);
2874
2875 }
2876
2877 # configuration resolver.  Will only resolve all the lazy evaluation
2878 # codeblocks for the chosen target and all those it inherits from,
2879 # recursively
2880 sub resolve_config {
2881     my $target = shift;
2882     my @breadcrumbs = @_;
2883
2884 #    my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
2885
2886     if (grep { $_ eq $target } @breadcrumbs) {
2887         die "inherit_from loop!  target backtrace:\n  "
2888             ,$target,"\n  ",join("\n  ", @breadcrumbs),"\n";
2889     }
2890
2891     if (!defined($table{$target})) {
2892         warn "Warning! target $target doesn't exist!\n";
2893         return ();
2894     }
2895     # Recurse through all inheritances.  They will be resolved on the
2896     # fly, so when this operation is done, they will all just be a
2897     # bunch of attributes with string values.
2898     # What we get here, though, are keys with references to lists of
2899     # the combined values of them all.  We will deal with lists after
2900     # this stage is done.
2901     my %combined_inheritance = ();
2902     if ($table{$target}->{inherit_from}) {
2903         my @inherit_from =
2904             map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
2905         foreach (@inherit_from) {
2906             my %inherited_config = resolve_config($_, $target, @breadcrumbs);
2907
2908             # 'template' is a marker that's considered private to
2909             # the config that had it.
2910             delete $inherited_config{template};
2911
2912             foreach (keys %inherited_config) {
2913                 if (!$combined_inheritance{$_}) {
2914                     $combined_inheritance{$_} = [];
2915                 }
2916                 push @{$combined_inheritance{$_}}, $inherited_config{$_};
2917             }
2918         }
2919     }
2920
2921     # We won't need inherit_from in this target any more, since we've
2922     # resolved all the inheritances that lead to this
2923     delete $table{$target}->{inherit_from};
2924
2925     # Now is the time to deal with those lists.  Here's the place to
2926     # decide what shall be done with those lists, all based on the
2927     # values of the target we're currently dealing with.
2928     # - If a value is a coderef, it will be executed with the list of
2929     #   inherited values as arguments.
2930     # - If the corresponding key doesn't have a value at all or is the
2931     #   empty string, the inherited value list will be run through the
2932     #   default combiner (below), and the result becomes this target's
2933     #   value.
2934     # - Otherwise, this target's value is assumed to be a string that
2935     #   will simply override the inherited list of values.
2936     my $default_combiner = add();
2937
2938     my %all_keys =
2939         map { $_ => 1 } (keys %combined_inheritance,
2940                          keys %{$table{$target}});
2941
2942     sub process_values {
2943         my $object    = shift;
2944         my $inherited = shift;  # Always a [ list ]
2945         my $target    = shift;
2946         my $entry     = shift;
2947
2948         $add_called = 0;
2949
2950         while(ref($object) eq "CODE") {
2951             $object = $object->(@$inherited);
2952         }
2953         if (!defined($object)) {
2954             return ();
2955         }
2956         elsif (ref($object) eq "ARRAY") {
2957             local $add_called;  # To make sure recursive calls don't affect it
2958             return [ map { process_values($_, $inherited, $target, $entry) }
2959                      @$object ];
2960         } elsif (ref($object) eq "") {
2961             return $object;
2962         } else {
2963             die "cannot handle reference type ",ref($object)
2964                 ," found in target ",$target," -> ",$entry,"\n";
2965         }
2966     }
2967
2968     foreach (sort keys %all_keys) {
2969         my $previous = $combined_inheritance{$_};
2970
2971         # Current target doesn't have a value for the current key?
2972         # Assign it the default combiner, the rest of this loop body
2973         # will handle it just like any other coderef.
2974         if (!exists $table{$target}->{$_}) {
2975             $table{$target}->{$_} = $default_combiner;
2976         }
2977
2978         $table{$target}->{$_} = process_values($table{$target}->{$_},
2979                                                $combined_inheritance{$_},
2980                                                $target, $_);
2981         unless(defined($table{$target}->{$_})) {
2982             delete $table{$target}->{$_};
2983         }
2984 #        if ($extra_checks &&
2985 #            $previous && !($add_called ||  $previous ~~ $table{$target}->{$_})) {
2986 #            warn "$_ got replaced in $target\n";
2987 #        }
2988     }
2989
2990     # Finally done, return the result.
2991     return %{$table{$target}};
2992 }
2993
2994 sub usage
2995         {
2996         print STDERR $usage;
2997         print STDERR "\npick os/compiler from:\n";
2998         my $j=0;
2999         my $i;
3000         my $k=0;
3001         foreach $i (sort keys %table)
3002                 {
3003                 next if $table{$i}->{template};
3004                 next if $i =~ /^debug/;
3005                 $k += length($i) + 1;
3006                 if ($k > 78)
3007                         {
3008                         print STDERR "\n";
3009                         $k=length($i);
3010                         }
3011                 print STDERR $i . " ";
3012                 }
3013         foreach $i (sort keys %table)
3014                 {
3015                 next if $table{$i}->{template};
3016                 next if $i !~ /^debug/;
3017                 $k += length($i) + 1;
3018                 if ($k > 78)
3019                         {
3020                         print STDERR "\n";
3021                         $k=length($i);
3022                         }
3023                 print STDERR $i . " ";
3024                 }
3025         print STDERR "\n\nNOTE: If in doubt, on Unix-ish systems use './config'.\n";
3026         exit(1);
3027         }
3028
3029 sub run_dofile
3030 {
3031     my $out = shift;
3032     my @templates = @_;
3033
3034     unlink $out || warn "Can't remove $out, $!"
3035         if -f $out;
3036     foreach (@templates) {
3037         die "Can't open $_, $!" unless -f $_;
3038     }
3039     my $perlcmd = (quotify("maybeshell", $config{perl}))[0];
3040     my $cmd = "$perlcmd \"-I.\" \"-Mconfigdata\" \"$dofile\" -o\"Configure\" \"".join("\" \"",@templates)."\" > \"$out.new\"";
3041     #print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
3042     system($cmd);
3043     exit 1 if $? != 0;
3044     rename("$out.new", $out) || die "Can't rename $out.new, $!";
3045 }
3046
3047 sub compiler_predefined {
3048     state %predefined;
3049     my $default_compiler = shift;
3050
3051     return () if $^O eq 'VMS';
3052
3053     die 'compiler_predefined called without a default compiler'
3054         unless $default_compiler;
3055
3056     if (! $predefined{$default_compiler}) {
3057         my $cc = "$config{CROSS_COMPILE}$default_compiler";
3058
3059         $predefined{$default_compiler} = {};
3060
3061         # collect compiler pre-defines from gcc or gcc-alike...
3062         open(PIPE, "$cc -dM -E -x c /dev/null 2>&1 |");
3063         while (my $l = <PIPE>) {
3064             $l =~ m/^#define\s+(\w+(?:\(\w+\))?)(?:\s+(.+))?/ or last;
3065             $predefined{$default_compiler}->{$1} = $2 // '';
3066         }
3067         close(PIPE);
3068     }
3069
3070     return %{$predefined{$default_compiler}};
3071 }
3072
3073 sub which
3074 {
3075     my ($name)=@_;
3076
3077     if (eval { require IPC::Cmd; 1; }) {
3078         IPC::Cmd->import();
3079         return scalar IPC::Cmd::can_run($name);
3080     } else {
3081         # if there is $directories component in splitpath,
3082         # then it's not something to test with $PATH...
3083         return $name if (File::Spec->splitpath($name))[1];
3084
3085         foreach (File::Spec->path()) {
3086             my $fullpath = catfile($_, "$name$target{exe_extension}");
3087             if (-f $fullpath and -x $fullpath) {
3088                 return $fullpath;
3089             }
3090         }
3091     }
3092 }
3093
3094 sub env
3095 {
3096     my $name = shift;
3097     my %opts = @_;
3098
3099     unless ($opts{cacheonly}) {
3100         # Note that if $ENV{$name} doesn't exist or is undefined,
3101         # $config{perlenv}->{$name} will be created with the value
3102         # undef.  This is intentional.
3103
3104         $config{perlenv}->{$name} = $ENV{$name}
3105             if ! exists $config{perlenv}->{$name};
3106     }
3107     return $config{perlenv}->{$name};
3108 }
3109
3110 # Configuration printer ##############################################
3111
3112 sub print_table_entry
3113 {
3114     local $now_printing = shift;
3115     my %target = resolve_config($now_printing);
3116     my $type = shift;
3117
3118     # Don't print the templates
3119     return if $target{template};
3120
3121     my @sequence = (
3122         "sys_id",
3123         "cpp",
3124         "cppflags",
3125         "defines",
3126         "includes",
3127         "cc",
3128         "cflags",
3129         "unistd",
3130         "ld",
3131         "lflags",
3132         "loutflag",
3133         "ex_libs",
3134         "bn_ops",
3135         "apps_aux_src",
3136         "cpuid_asm_src",
3137         "uplink_aux_src",
3138         "bn_asm_src",
3139         "ec_asm_src",
3140         "des_asm_src",
3141         "aes_asm_src",
3142         "bf_asm_src",
3143         "md5_asm_src",
3144         "cast_asm_src",
3145         "sha1_asm_src",
3146         "rc4_asm_src",
3147         "rmd160_asm_src",
3148         "rc5_asm_src",
3149         "wp_asm_src",
3150         "cmll_asm_src",
3151         "modes_asm_src",
3152         "padlock_asm_src",
3153         "chacha_asm_src",
3154         "poly1035_asm_src",
3155         "thread_scheme",
3156         "perlasm_scheme",
3157         "dso_scheme",
3158         "shared_target",
3159         "shared_cflag",
3160         "shared_defines",
3161         "shared_ldflag",
3162         "shared_rcflag",
3163         "shared_extension",
3164         "dso_extension",
3165         "obj_extension",
3166         "exe_extension",
3167         "ranlib",
3168         "ar",
3169         "arflags",
3170         "aroutflag",
3171         "rc",
3172         "rcflags",
3173         "rcoutflag",
3174         "mt",
3175         "mtflags",
3176         "mtinflag",
3177         "mtoutflag",
3178         "multilib",
3179         "build_scheme",
3180         );
3181
3182     if ($type eq "TABLE") {
3183         print "\n";
3184         print "*** $now_printing\n";
3185         foreach (@sequence) {
3186             if (ref($target{$_}) eq "ARRAY") {
3187                 printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
3188             } else {
3189                 printf "\$%-12s = %s\n", $_, $target{$_};
3190             }
3191         }
3192     } elsif ($type eq "HASH") {
3193         my $largest =
3194             length((sort { length($a) <=> length($b) } @sequence)[-1]);
3195         print "    '$now_printing' => {\n";
3196         foreach (@sequence) {
3197             if ($target{$_}) {
3198                 if (ref($target{$_}) eq "ARRAY") {
3199                     print "      '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
3200                 } else {
3201                     print "      '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
3202                 }
3203             }
3204         }
3205         print "    },\n";
3206     }
3207 }
3208
3209 # Utility routines ###################################################
3210
3211 # On VMS, if the given file is a logical name, File::Spec::Functions
3212 # will consider it an absolute path.  There are cases when we want a
3213 # purely syntactic check without checking the environment.
3214 sub isabsolute {
3215     my $file = shift;
3216
3217     # On non-platforms, we just use file_name_is_absolute().
3218     return file_name_is_absolute($file) unless $^O eq "VMS";
3219
3220     # If the file spec includes a device or a directory spec,
3221     # file_name_is_absolute() is perfectly safe.
3222     return file_name_is_absolute($file) if $file =~ m|[:\[]|;
3223
3224     # Here, we know the given file spec isn't absolute
3225     return 0;
3226 }
3227
3228 # Makes a directory absolute and cleans out /../ in paths like foo/../bar
3229 # On some platforms, this uses rel2abs(), while on others, realpath() is used.
3230 # realpath() requires that at least all path components except the last is an
3231 # existing directory.  On VMS, the last component of the directory spec must
3232 # exist.
3233 sub absolutedir {
3234     my $dir = shift;
3235
3236     # realpath() is quite buggy on VMS.  It uses LIB$FID_TO_NAME, which
3237     # will return the volume name for the device, no matter what.  Also,
3238     # it will return an incorrect directory spec if the argument is a
3239     # directory that doesn't exist.
3240     if ($^O eq "VMS") {
3241         return rel2abs($dir);
3242     }
3243
3244     # We use realpath() on Unix, since no other will properly clean out
3245     # a directory spec.
3246     use Cwd qw/realpath/;
3247
3248     return realpath($dir);
3249 }
3250
3251 sub quotify {
3252     my %processors = (
3253         perl    => sub { my $x = shift;
3254                          $x =~ s/([\\\$\@"])/\\$1/g;
3255                          return '"'.$x.'"'; },
3256         maybeshell => sub { my $x = shift;
3257                             (my $y = $x) =~ s/([\\\"])/\\$1/g;
3258                             if ($x ne $y || $x =~ m|\s|) {
3259                                 return '"'.$y.'"';
3260                             } else {
3261                                 return $x;
3262                             }
3263                         },
3264         );
3265     my $for = shift;
3266     my $processor =
3267         defined($processors{$for}) ? $processors{$for} : sub { shift; };
3268
3269     return map { $processor->($_); } @_;
3270 }
3271
3272 # collect_from_file($filename, $line_concat_cond_re, $line_concat)
3273 # $filename is a file name to read from
3274 # $line_concat_cond_re is a regexp detecting a line continuation ending
3275 # $line_concat is a CODEref that takes care of concatenating two lines
3276 sub collect_from_file {
3277     my $filename = shift;
3278     my $line_concat_cond_re = shift;
3279     my $line_concat = shift;
3280
3281     open my $fh, $filename || die "unable to read $filename: $!\n";
3282     return sub {
3283         my $saved_line = "";
3284         $_ = "";
3285         while (<$fh>) {
3286             s|\R$||;
3287             if (defined $line_concat) {
3288                 $_ = $line_concat->($saved_line, $_);
3289                 $saved_line = "";
3290             }
3291             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3292                 $saved_line = $_;
3293                 next;
3294             }
3295             return $_;
3296         }
3297         die "$filename ending with continuation line\n" if $_;
3298         close $fh;
3299         return undef;
3300     }
3301 }
3302
3303 # collect_from_array($array, $line_concat_cond_re, $line_concat)
3304 # $array is an ARRAYref of lines
3305 # $line_concat_cond_re is a regexp detecting a line continuation ending
3306 # $line_concat is a CODEref that takes care of concatenating two lines
3307 sub collect_from_array {
3308     my $array = shift;
3309     my $line_concat_cond_re = shift;
3310     my $line_concat = shift;
3311     my @array = (@$array);
3312
3313     return sub {
3314         my $saved_line = "";
3315         $_ = "";
3316         while (defined($_ = shift @array)) {
3317             s|\R$||;
3318             if (defined $line_concat) {
3319                 $_ = $line_concat->($saved_line, $_);
3320                 $saved_line = "";
3321             }
3322             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3323                 $saved_line = $_;
3324                 next;
3325             }
3326             return $_;
3327         }
3328         die "input text ending with continuation line\n" if $_;
3329         return undef;
3330     }
3331 }
3332
3333 # collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
3334 # $lineiterator is a CODEref that delivers one line at a time.
3335 # All following arguments are regex/CODEref pairs, where the regexp detects a
3336 # line and the CODEref does something with the result of the regexp.
3337 sub collect_information {
3338     my $lineiterator = shift;
3339     my %collectors = @_;
3340
3341     while(defined($_ = $lineiterator->())) {
3342         s|\R$||;
3343         my $found = 0;
3344         if ($collectors{"BEFORE"}) {
3345             $collectors{"BEFORE"}->($_);
3346         }
3347         foreach my $re (keys %collectors) {
3348             if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
3349                 $collectors{$re}->($lineiterator);
3350                 $found = 1;
3351             };
3352         }
3353         if ($collectors{"OTHERWISE"}) {
3354             $collectors{"OTHERWISE"}->($lineiterator, $_)
3355                 unless $found || !defined $collectors{"OTHERWISE"};
3356         }
3357         if ($collectors{"AFTER"}) {
3358             $collectors{"AFTER"}->($_);
3359         }
3360     }
3361 }
3362
3363 # tokenize($line)
3364 # $line is a line of text to split up into tokens
3365 # returns a list of tokens
3366 #
3367 # Tokens are divided by spaces.  If the tokens include spaces, they
3368 # have to be quoted with single or double quotes.  Double quotes
3369 # inside a double quoted token must be escaped.  Escaping is done
3370 # with backslash.
3371 # Basically, the same quoting rules apply for " and ' as in any
3372 # Unix shell.
3373 sub tokenize {
3374     my $line = my $debug_line = shift;
3375     my @result = ();
3376
3377     while ($line =~ s|^\s+||, $line ne "") {
3378         my $token = "";
3379         while ($line ne "" && $line !~ m|^\s|) {
3380             if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
3381                 $token .= $1;
3382                 $line = $';
3383             } elsif ($line =~ m/^'([^']*)'/) {
3384                 $token .= $1;
3385                 $line = $';
3386             } elsif ($line =~ m/^(\S+)/) {
3387                 $token .= $1;
3388                 $line = $';
3389             }
3390         }
3391         push @result, $token;
3392     }
3393
3394     if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
3395         print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
3396         print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
3397     }
3398     return @result;
3399 }