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