Configure

   1 #! /usr/bin/env perl
   2 # -*- mode: perl; -*-
   3 # Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
   4 #
   5 # Licensed under the OpenSSL license (the "License").  You may not use
   6 # this file except in compliance with the License.  You can obtain a copy
   7 # in the file LICENSE in the source distribution or at
   8 # https://www.openssl.org/source/license.html
   9
  10 ##  Configure -- OpenSSL source tree configuration script
  11
  12 use 5.10.0;
  13 use strict;
  14 use Config;
  15 use FindBin;
  16 use lib "$FindBin::Bin/util/perl";
  17 use File::Basename;
  18 use File::Spec::Functions qw/:DEFAULT abs2rel rel2abs/;
  19 use File::Path qw/mkpath/;
  20 use OpenSSL::Glob;
  21
  22 # see INSTALL for instructions.
  23
  24 my $usage="Usage: Configure [no-<cipher> ...] [enable-<cipher> ...] [-Dxxx] [-lxxx] [-Lxxx] [-fxxx] [-Kxxx] [no-hw-xxx|no-hw] [[no-]threads] [[no-]shared] [[no-]zlib|zlib-dynamic] [no-asm] [no-dso] [no-egd] [sctp] [386] [--prefix=DIR] [--openssldir=OPENSSLDIR] [--with-xxx[=vvv]] [--config=FILE] os/compiler[:flags]\n";
  25
  26 # Options:
  27 #
  28 # --config      add the given configuration file, which will be read after
  29 #               any "Configurations*" files that are found in the same
  30 #               directory as this script.
  31 # --prefix      prefix for the OpenSSL installation, which includes the
  32 #               directories bin, lib, include, share/man, share/doc/openssl
  33 #               This becomes the value of INSTALLTOP in Makefile
  34 #               (Default: /usr/local)
  35 # --openssldir  OpenSSL data area, such as openssl.cnf, certificates and keys.
  36 #               If it's a relative directory, it will be added on the directory
  37 #               given with --prefix.
  38 #               This becomes the value of OPENSSLDIR in Makefile and in C.
  39 #               (Default: PREFIX/ssl)
  40 #
  41 # --cross-compile-prefix Add specified prefix to binutils components.
  42 #
  43 # --api         One of 0.9.8, 1.0.0 or 1.1.0.  Do not compile support for
  44 #               interfaces deprecated as of the specified OpenSSL version.
  45 #
  46 # no-hw-xxx     do not compile support for specific crypto hardware.
  47 #               Generic OpenSSL-style methods relating to this support
  48 #               are always compiled but return NULL if the hardware
  49 #               support isn't compiled.
  50 # no-hw         do not compile support for any crypto hardware.
  51 # [no-]threads  [don't] try to create a library that is suitable for
  52 #               multithreaded applications (default is "threads" if we
  53 #               know how to do it)
  54 # [no-]shared   [don't] try to create shared libraries when supported.
  55 # [no-]pic      [don't] try to build position independent code when supported.
  56 #               If disabled, it also disables shared and dynamic-engine.
  57 # no-asm        do not use assembler
  58 # no-dso        do not compile in any native shared-library methods. This
  59 #               will ensure that all methods just return NULL.
  60 # no-egd        do not compile support for the entropy-gathering daemon APIs
  61 # [no-]zlib     [don't] compile support for zlib compression.
  62 # zlib-dynamic  Like "zlib", but the zlib library is expected to be a shared
  63 #               library and will be loaded in run-time by the OpenSSL library.
  64 # sctp          include SCTP support
  65 # enable-weak-ssl-ciphers
  66 #               Enable weak ciphers that are disabled by default.
  67 # 386           generate 80386 code in assembly modules
  68 # no-sse2       disables IA-32 SSE2 code in assembly modules, the above
  69 #               mentioned '386' option implies this one
  70 # no-<cipher>   build without specified algorithm (rsa, idea, rc5, ...)
  71 # -<xxx> +<xxx> compiler options are passed through
  72 # -static       while -static is also a pass-through compiler option (and
  73 #               as such is limited to environments where it's actually
  74 #               meaningful), it triggers a number configuration options,
  75 #               namely no-dso, no-pic, no-shared and no-threads. It is
  76 #               argued that the only reason to produce statically linked
  77 #               binaries (and in context it means executables linked with
  78 #               -static flag, and not just executables linked with static
  79 #               libcrypto.a) is to eliminate dependency on specific run-time,
  80 #               a.k.a. libc version. The mentioned config options are meant
  81 #               to achieve just that. Unfortunately on Linux it's impossible
  82 #               to eliminate the dependency completely for openssl executable
  83 #               because of getaddrinfo and gethostbyname calls, which can
  84 #               invoke dynamically loadable library facility anyway to meet
  85 #               the lookup requests. For this reason on Linux statically
  86 #               linked openssl executable has rather debugging value than
  87 #               production quality.
  88 #
  89 # DEBUG_SAFESTACK use type-safe stacks to enforce type-safety on stack items
  90 #               provided to stack calls. Generates unique stack functions for
  91 #               each possible stack type.
  92 # BN_LLONG      use the type 'long long' in crypto/bn/bn.h
  93 # RC4_CHAR      use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
  94 # Following are set automatically by this script
  95 #
  96 # MD5_ASM       use some extra md5 assembler,
  97 # SHA1_ASM      use some extra sha1 assembler, must define L_ENDIAN for x86
  98 # RMD160_ASM    use some extra ripemd160 assembler,
  99 # SHA256_ASM    sha256_block is implemented in assembler
 100 # SHA512_ASM    sha512_block is implemented in assembler
 101 # AES_ASM       AES_[en|de]crypt is implemented in assembler
 102
 103 # Minimum warning options... any contributions to OpenSSL should at least get
 104 # past these.
 105
 106 # DEBUG_UNUSED enables __owur (warn unused result) checks.
 107 # -DPEDANTIC complements -pedantic and is meant to mask code that
 108 # is not strictly standard-compliant and/or implementation-specific,
 109 # e.g. inline assembly, disregards to alignment requirements, such
 110 # that -pedantic would complain about. Incidentally -DPEDANTIC has
 111 # to be used even in sanitized builds, because sanitizer too is
 112 # supposed to and does take notice of non-standard behaviour. Then
 113 # -pedantic with pre-C9x compiler would also complain about 'long
 114 # long' not being supported. As 64-bit algorithms are common now,
 115 # it grew impossible to resolve this without sizeable additional
 116 # code, so we just tell compiler to be pedantic about everything
 117 # but 'long long' type.
 118
 119 my $gcc_devteam_warn = "-DDEBUG_UNUSED"
 120         . " -DPEDANTIC -pedantic -Wno-long-long"
 121         . " -Wall"
 122         . " -Wextra"
 123         . " -Wno-unused-parameter"
 124         . " -Wno-missing-field-initializers"
 125         . " -Wswitch"
 126         . " -Wsign-compare"
 127         . " -Wmissing-prototypes"
 128         . " -Wshadow"
 129         . " -Wformat"
 130         . " -Wtype-limits"
 131         . " -Wundef"
 132         . " -Werror"
 133         ;
 134
 135 # These are used in addition to $gcc_devteam_warn when the compiler is clang.
 136 # TODO(openssl-team): fix problems and investigate if (at least) the
 137 # following warnings can also be enabled:
 138 #       -Wcast-align
 139 #       -Wunreachable-code -- no, too ugly/compiler-specific
 140 #       -Wlanguage-extension-token -- no, we use asm()
 141 #       -Wunused-macros -- no, too tricky for BN and _XOPEN_SOURCE etc
 142 #       -Wextended-offsetof -- no, needed in CMS ASN1 code
 143 my $clang_devteam_warn = ""
 144         . " -Wswitch-default"
 145         . " -Wno-parentheses-equality"
 146         . " -Wno-language-extension-token"
 147         . " -Wno-extended-offsetof"
 148         . " -Wconditional-uninitialized"
 149         . " -Wincompatible-pointer-types-discards-qualifiers"
 150         . " -Wmissing-variable-declarations"
 151         . " -Wno-unknown-warning-option"
 152         ;
 153
 154 # This adds backtrace information to the memory leak info.  Is only used
 155 # when crypto-mdebug-backtrace is enabled.
 156 my $memleak_devteam_backtrace = "-rdynamic";
 157
 158 my $strict_warnings = 0;
 159
 160 # As for $BSDthreads. Idea is to maintain "collective" set of flags,
 161 # which would cover all BSD flavors. -pthread applies to them all,
 162 # but is treated differently. OpenBSD expands is as -D_POSIX_THREAD
 163 # -lc_r, which is sufficient. FreeBSD 4.x expands it as -lc_r,
 164 # which has to be accompanied by explicit -D_THREAD_SAFE and
 165 # sometimes -D_REENTRANT. FreeBSD 5.x expands it as -lc_r, which
 166 # seems to be sufficient?
 167 our $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";
 168
 169 #
 170 # API compatibility name to version number mapping.
 171 #
 172 my $maxapi = "1.1.0";           # API for "no-deprecated" builds
 173 my $apitable = {
 174     "1.1.0" => "0x10100000L",
 175     "1.0.0" => "0x10000000L",
 176     "0.9.8" => "0x00908000L",
 177 };
 178
 179 our %table = ();
 180 our %config = ();
 181 our %withargs = ();
 182 our $now_printing;      # set to current entry's name in print_table_entry
 183                         # (todo: right thing would be to encapsulate name
 184                         # into %target [class] and make print_table_entry
 185                         # a method)
 186
 187 # Forward declarations ###############################################
 188
 189 # read_config(filename)
 190 #
 191 # Reads a configuration file and populates %table with the contents
 192 # (which the configuration file places in %targets).
 193 sub read_config;
 194
 195 # resolve_config(target)
 196 #
 197 # Resolves all the late evaluations, inheritances and so on for the
 198 # chosen target and any target it inherits from.
 199 sub resolve_config;
 200
 201
 202 # Information collection #############################################
 203
 204 # Unified build supports separate build dir
 205 my $srcdir = catdir(absolutedir(dirname($0))); # catdir ensures local syntax
 206 my $blddir = catdir(absolutedir("."));         # catdir ensures local syntax
 207 my $dofile = abs2rel(catfile($srcdir, "util/dofile.pl"));
 208
 209 my $local_config_envname = 'OPENSSL_LOCAL_CONFIG_DIR';
 210
 211 $config{sourcedir} = abs2rel($srcdir);
 212 $config{builddir} = abs2rel($blddir);
 213
 214 # Collect reconfiguration information if needed
 215 my @argvcopy=@ARGV;
 216
 217 if (grep /^reconf(igure)?$/, @argvcopy) {
 218     die "reconfiguring with other arguments present isn't supported"
 219         if scalar @argvcopy > 1;
 220     if (-f "./configdata.pm") {
 221         my $file = "./configdata.pm";
 222         unless (my $return = do $file) {
 223             die "couldn't parse $file: $@" if $@;
 224             die "couldn't do $file: $!"    unless defined $return;
 225             die "couldn't run $file"       unless $return;
 226         }
 227
 228         @argvcopy = defined($configdata::config{perlargv}) ?
 229             @{$configdata::config{perlargv}} : ();
 230         die "Incorrect data to reconfigure, please do a normal configuration\n"
 231             if (grep(/^reconf/,@argvcopy));
 232         $config{perlenv} = $configdata::config{perlenv} // {};
 233     } else {
 234         die "Insufficient data to reconfigure, please do a normal configuration\n";
 235     }
 236 }
 237
 238 $config{perlargv} = [ @argvcopy ];
 239
 240 # Collect version numbers
 241 $config{version} = "unknown";
 242 $config{version_num} = "unknown";
 243 $config{shlib_version_number} = "unknown";
 244 $config{shlib_version_history} = "unknown";
 245
 246 collect_information(
 247     collect_from_file(catfile($srcdir,'include/openssl/opensslv.h')),
 248     qr/OPENSSL.VERSION.TEXT.*OpenSSL (\S+) / => sub { $config{version} = $1; },
 249     qr/OPENSSL.VERSION.NUMBER.*(0x\S+)/      => sub { $config{version_num}=$1 },
 250     qr/SHLIB_VERSION_NUMBER *"([^"]+)"/      => sub { $config{shlib_version_number}=$1 },
 251     qr/SHLIB_VERSION_HISTORY *"([^"]*)"/     => sub { $config{shlib_version_history}=$1 }
 252     );
 253 if ($config{shlib_version_history} ne "") { $config{shlib_version_history} .= ":"; }
 254
 255 ($config{major}, $config{minor})
 256     = ($config{version} =~ /^([0-9]+)\.([0-9\.]+)/);
 257 ($config{shlib_major}, $config{shlib_minor})
 258     = ($config{shlib_version_number} =~ /^([0-9]+)\.([0-9\.]+)/);
 259 die "erroneous version information in opensslv.h: ",
 260     "$config{major}, $config{minor}, $config{shlib_major}, $config{shlib_minor}\n"
 261     if ($config{major} eq "" || $config{minor} eq ""
 262         || $config{shlib_major} eq "" ||  $config{shlib_minor} eq "");
 263
 264 # Collect target configurations
 265
 266 my $pattern = catfile(dirname($0), "Configurations", "*.conf");
 267 foreach (sort glob($pattern)) {
 268     &read_config($_);
 269 }
 270
 271 if (defined env($local_config_envname)) {
 272     if ($^O eq 'VMS') {
 273         # VMS environment variables are logical names,
 274         # which can be used as is
 275         $pattern = $local_config_envname . ':' . '*.conf';
 276     } else {
 277         $pattern = catfile(env($local_config_envname), '*.conf');
 278     }
 279
 280     foreach (sort glob($pattern)) {
 281         &read_config($_);
 282     }
 283 }
 284
 285 # Save away perl command information
 286 $config{perl_cmd} = $^X;
 287 $config{perl_version} = $Config{version};
 288 $config{perl_archname} = $Config{archname};
 289
 290 $config{prefix}="";
 291 $config{openssldir}="";
 292 $config{processor}="";
 293 $config{libdir}="";
 294 my $auto_threads=1;    # enable threads automatically? true by default
 295 my $default_ranlib;
 296
 297 # Top level directories to build
 298 $config{dirs} = [ "crypto", "ssl", "engines", "apps", "test", "util", "tools", "fuzz" ];
 299 # crypto/ subdirectories to build
 300 $config{sdirs} = [
 301     "objects",
 302     "md2", "md4", "md5", "sha", "mdc2", "hmac", "ripemd", "whrlpool", "poly1305", "blake2", "siphash", "sm3",
 303     "des", "aes", "rc2", "rc4", "rc5", "idea", "aria", "bf", "cast", "camellia", "seed", "sm4", "chacha", "modes",
 304     "bn", "ec", "rsa", "dsa", "dh", "sm2", "dso", "engine",
 305     "buffer", "bio", "stack", "lhash", "rand", "err",
 306     "evp", "asn1", "pem", "x509", "x509v3", "conf", "txt_db", "pkcs7", "pkcs12", "comp", "ocsp", "ui",
 307     "cms", "ts", "srp", "cmac", "ct", "async", "kdf", "store"
 308     ];
 309 # test/ subdirectories to build
 310 $config{tdirs} = [ "ossl_shim" ];
 311
 312 # Known TLS and DTLS protocols
 313 my @tls = qw(ssl3 tls1 tls1_1 tls1_2 tls1_3);
 314 my @dtls = qw(dtls1 dtls1_2);
 315
 316 # Explicitly known options that are possible to disable.  They can
 317 # be regexps, and will be used like this: /^no-${option}$/
 318 # For developers: keep it sorted alphabetically
 319
 320 my @disablables = (
 321     "afalgeng",
 322     "aria",
 323     "asan",
 324     "asm",
 325     "async",
 326     "autoalginit",
 327     "autoerrinit",
 328     "bf",
 329     "blake2",
 330     "camellia",
 331     "capieng",
 332     "cast",
 333     "chacha",
 334     "cmac",
 335     "cms",
 336     "comp",
 337     "crypto-mdebug",
 338     "crypto-mdebug-backtrace",
 339     "ct",
 340     "deprecated",
 341     "des",
 342     "devcryptoeng",
 343     "dgram",
 344     "dh",
 345     "dsa",
 346     "dso",
 347     "dtls",
 348     "dynamic-engine",
 349     "ec",
 350     "ec2m",
 351     "ecdh",
 352     "ecdsa",
 353     "ec_nistp_64_gcc_128",
 354     "egd",
 355     "engine",
 356     "err",
 357     "external-tests",
 358     "filenames",
 359     "fuzz-libfuzzer",
 360     "fuzz-afl",
 361     "gost",
 362     "heartbeats",
 363     "hw(-.+)?",
 364     "idea",
 365     "makedepend",
 366     "md2",
 367     "md4",
 368     "mdc2",
 369     "msan",
 370     "multiblock",
 371     "nextprotoneg",
 372     "ocb",
 373     "ocsp",
 374     "pic",
 375     "poly1305",
 376     "posix-io",
 377     "psk",
 378     "rc2",
 379     "rc4",
 380     "rc5",
 381     "rdrand",
 382     "rfc3779",
 383     "rmd160",
 384     "scrypt",
 385     "sctp",
 386     "seed",
 387     "shared",
 388     "siphash",
 389     "sm2",
 390     "sm3",
 391     "sm4",
 392     "sock",
 393     "srp",
 394     "srtp",
 395     "sse2",
 396     "ssl",
 397     "ssl-trace",
 398     "static-engine",
 399     "stdio",
 400     "tests",
 401     "threads",
 402     "tls",
 403     "tls13downgrade",
 404     "ts",
 405     "ubsan",
 406     "ui-console",
 407     "unit-test",
 408     "whirlpool",
 409     "weak-ssl-ciphers",
 410     "zlib",
 411     "zlib-dynamic",
 412     );
 413 foreach my $proto ((@tls, @dtls))
 414         {
 415         push(@disablables, $proto);
 416         push(@disablables, "$proto-method") unless $proto eq "tls1_3";
 417         }
 418
 419 my %deprecated_disablables = (
 420     "ssl2" => undef,
 421     "buf-freelists" => undef,
 422     "ripemd" => "rmd160",
 423     "ui" => "ui-console",
 424     );
 425
 426 # All of the following are disabled by default:
 427
 428 our %disabled = ( # "what"         => "comment"
 429                   "asan"                => "default",
 430                   "crypto-mdebug"       => "default",
 431                   "crypto-mdebug-backtrace" => "default",
 432                   "devcryptoeng"        => "default",
 433                   "ec_nistp_64_gcc_128" => "default",
 434                   "egd"                 => "default",
 435                   "external-tests"      => "default",
 436                   "fuzz-libfuzzer"      => "default",
 437                   "fuzz-afl"            => "default",
 438                   "heartbeats"          => "default",
 439                   "md2"                 => "default",
 440                   "msan"                => "default",
 441                   "rc5"                 => "default",
 442                   "sctp"                => "default",
 443                   "ssl-trace"           => "default",
 444                   "ssl3"                => "default",
 445                   "ssl3-method"         => "default",
 446                   "ubsan"               => "default",
 447                   "tls13downgrade"      => "default",
 448                   "unit-test"           => "default",
 449                   "weak-ssl-ciphers"    => "default",
 450                   "zlib"                => "default",
 451                   "zlib-dynamic"        => "default",
 452                 );
 453
 454 # Note: => pair form used for aesthetics, not to truly make a hash table
 455 my @disable_cascades = (
 456     # "what"            => [ "cascade", ... ]
 457     sub { $config{processor} eq "386" }
 458                         => [ "sse2" ],
 459     "ssl"               => [ "ssl3" ],
 460     "ssl3-method"       => [ "ssl3" ],
 461     "zlib"              => [ "zlib-dynamic" ],
 462     "des"               => [ "mdc2" ],
 463     "ec"                => [ "ecdsa", "ecdh" ],
 464
 465     "dgram"             => [ "dtls", "sctp" ],
 466     "sock"              => [ "dgram" ],
 467     "dtls"              => [ @dtls ],
 468     sub { 0 == scalar grep { !$disabled{$_} } @dtls }
 469                         => [ "dtls" ],
 470
 471     "tls"               => [ @tls ],
 472     sub { 0 == scalar grep { !$disabled{$_} } @tls }
 473                         => [ "tls" ],
 474
 475     "crypto-mdebug"     => [ "crypto-mdebug-backtrace" ],
 476
 477     # Without DSO, we can't load dynamic engines, so don't build them dynamic
 478     "dso"               => [ "dynamic-engine" ],
 479
 480     # Without position independent code, there can be no shared libraries or DSOs
 481     "pic"               => [ "shared" ],
 482     "shared"            => [ "dynamic-engine" ],
 483     "engine"            => [ "afalgeng", "devcryptoeng" ],
 484
 485     # no-autoalginit is only useful when building non-shared
 486     "autoalginit"       => [ "shared", "apps" ],
 487
 488     "stdio"             => [ "apps", "capieng", "egd" ],
 489     "apps"              => [ "tests" ],
 490     "tests"             => [ "external-tests" ],
 491     "comp"              => [ "zlib" ],
 492     "ec"                => [ "tls1_3", "sm2" ],
 493     "sm3"               => [ "sm2" ],
 494     sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
 495
 496     sub { !$disabled{"msan"} } => [ "asm" ],
 497     );
 498
 499 # Avoid protocol support holes.  Also disable all versions below N, if version
 500 # N is disabled while N+1 is enabled.
 501 #
 502 my @list = (reverse @tls);
 503 while ((my $first, my $second) = (shift @list, shift @list)) {
 504     last unless @list;
 505     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 506                               => [ @list ] );
 507     unshift @list, $second;
 508 }
 509 my @list = (reverse @dtls);
 510 while ((my $first, my $second) = (shift @list, shift @list)) {
 511     last unless @list;
 512     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 513                               => [ @list ] );
 514     unshift @list, $second;
 515 }
 516
 517 # Explicit "no-..." options will be collected in %disabled along with the defaults.
 518 # To remove something from %disabled, use "enable-foo".
 519 # For symmetry, "disable-foo" is a synonym for "no-foo".
 520
 521 &usage if ($#ARGV < 0);
 522
 523 # For the "make variables" CINCLUDES and CDEFINES, we support lists with
 524 # platform specific list separators.  Users from those platforms should
 525 # recognise those separators from how you set up the PATH to find executables.
 526 # The default is the Unix like separator, :, but as an exception, we also
 527 # support the space as separator.
 528 my $list_separator_re =
 529     { VMS           => qr/(?<!\^),/,
 530       MSWin32       => qr/(?<!\\);/ } -> {$^O} // qr/(?<!\\)[:\s]/;
 531 # All the "make variables" we support
 532 # Some get pre-populated for the sake of backward compatibility
 533 # (we supported those before the change to "make variable" support.
 534 my %user = (
 535     AR          => env('AR'),
 536     ARFLAGS     => [],
 537     AS          => undef,
 538     ASFLAGS     => [],
 539     CC          => env('CC'),
 540     CFLAGS      => [],
 541     CXX         => env('CXX'),
 542     CXXFLAGS    => [],
 543     CPP         => undef,
 544     CPPFLAGS    => [],  # -D, -I, -Wp,
 545     CPPDEFINES  => [],  # Alternative for -D
 546     CPPINCLUDES => [],  # Alternative for -I
 547     CROSS_COMPILE => env('CROSS_COMPILE'),
 548     HASHBANGPERL=> env('HASHBANGPERL') || env('PERL'),
 549     LD          => undef,
 550     LDFLAGS     => [],  # -L, -Wl,
 551     LDLIBS      => [],  # -l
 552     MT          => undef,
 553     MTFLAGS     => [],
 554     RANLIB      => env('RANLIB'),
 555     RC          => env('RC') || env('WINDRES'),
 556     RCFLAGS     => [],
 557     RM          => undef,
 558    );
 559 # Info about what "make variables" may be prefixed with the cross compiler
 560 # prefix.  This should NEVER mention any such variable with a list for value.
 561 my @user_crossable = qw ( AR AS CC CXX CPP LD MT RANLIB RC );
 562 # The same but for flags given as Configure options.  These are *additional*
 563 # input, as opposed to the VAR=string option that override the corresponding
 564 # config target attributes
 565 my %useradd = (
 566     CPPDEFINES  => [],
 567     CPPINCLUDES => [],
 568     CPPFLAGS    => [],
 569     CFLAGS      => [],
 570     CXXFLAGS    => [],
 571     LDFLAGS     => [],
 572     LDLIBS      => [],
 573    );
 574
 575 my %user_synonyms = (
 576     HASHBANGPERL=> 'PERL',
 577     RC          => 'WINDRES',
 578    );
 579
 580 # Some target attributes have been renamed, this is the translation table
 581 my %target_attr_translate =(
 582     ar          => 'AR',
 583     as          => 'AS',
 584     cc          => 'CC',
 585     cxx         => 'CXX',
 586     cpp         => 'CPP',
 587     hashbangperl => 'HASHBANGPERL',
 588     ld          => 'LD',
 589     mt          => 'MT',
 590     ranlib      => 'RANLIB',
 591     rc          => 'RC',
 592     rm          => 'RM',
 593    );
 594
 595 # Initialisers coming from 'config' scripts
 596 $config{defines} = [ split(/$list_separator_re/, env('__CNF_CPPDEFINES')) ];
 597 $config{includes} = [ split(/$list_separator_re/, env('__CNF_CPPINCLUDES')) ];
 598 $config{cppflags} = [ env('__CNF_CPPFLAGS') || () ];
 599 $config{cflags} = [ env('__CNF_CFLAGS') || () ];
 600 $config{cxxflags} = [ env('__CNF_CXXFLAGS') || () ];
 601 $config{lflags} = [ env('__CNF_LDFLAGS') || () ];
 602 $config{ex_libs} = [ env('__CNF_LDLIBS') || () ];
 603
 604 $config{openssl_api_defines}=[];
 605 $config{openssl_algorithm_defines}=[];
 606 $config{openssl_thread_defines}=[];
 607 $config{openssl_sys_defines}=[];
 608 $config{openssl_other_defines}=[];
 609 $config{options}="";
 610 $config{build_type} = "release";
 611 my $target="";
 612
 613 my %cmdvars = ();               # Stores FOO='blah' type arguments
 614 my %unsupported_options = ();
 615 my %deprecated_options = ();
 616 # If you change this, update apps/version.c
 617 my @known_seed_sources = qw(getrandom devrandom os egd none rdcpu librandom);
 618 my @seed_sources = ();
 619 while (@argvcopy)
 620         {
 621         $_ = shift @argvcopy;
 622
 623         # Support env variable assignments among the options
 624         if (m|^(\w+)=(.+)?$|)
 625                 {
 626                 $cmdvars{$1} = $2;
 627                 # Every time a variable is given as a configuration argument,
 628                 # it acts as a reset if the variable.
 629                 if (exists $user{$1})
 630                         {
 631                         $user{$1} = ref $user{$1} eq "ARRAY" ? [] : undef;
 632                         }
 633                 #if (exists $useradd{$1})
 634                 #       {
 635                 #       $useradd{$1} = [];
 636                 #       }
 637                 next;
 638                 }
 639
 640         # VMS is a case insensitive environment, and depending on settings
 641         # out of our control, we may receive options uppercased.  Let's
 642         # downcase at least the part before any equal sign.
 643         if ($^O eq "VMS")
 644                 {
 645                 s/^([^=]*)/lc($1)/e;
 646                 }
 647
 648         # some people just can't read the instructions, clang people have to...
 649         s/^-no-(?!integrated-as)/no-/;
 650
 651         # rewrite some options in "enable-..." form
 652         s /^-?-?shared$/enable-shared/;
 653         s /^sctp$/enable-sctp/;
 654         s /^threads$/enable-threads/;
 655         s /^zlib$/enable-zlib/;
 656         s /^zlib-dynamic$/enable-zlib-dynamic/;
 657
 658         if (/^(no|disable|enable)-(.+)$/)
 659                 {
 660                 my $word = $2;
 661                 if (!exists $deprecated_disablables{$word}
 662                         && !grep { $word =~ /^${_}$/ } @disablables)
 663                         {
 664                         $unsupported_options{$_} = 1;
 665                         next;
 666                         }
 667                 }
 668         if (/^no-(.+)$/ || /^disable-(.+)$/)
 669                 {
 670                 foreach my $proto ((@tls, @dtls))
 671                         {
 672                         if ($1 eq "$proto-method")
 673                                 {
 674                                 $disabled{"$proto"} = "option($proto-method)";
 675                                 last;
 676                                 }
 677                         }
 678                 if ($1 eq "dtls")
 679                         {
 680                         foreach my $proto (@dtls)
 681                                 {
 682                                 $disabled{$proto} = "option(dtls)";
 683                                 }
 684                         $disabled{"dtls"} = "option(dtls)";
 685                         }
 686                 elsif ($1 eq "ssl")
 687                         {
 688                         # Last one of its kind
 689                         $disabled{"ssl3"} = "option(ssl)";
 690                         }
 691                 elsif ($1 eq "tls")
 692                         {
 693                         # XXX: Tests will fail if all SSL/TLS
 694                         # protocols are disabled.
 695                         foreach my $proto (@tls)
 696                                 {
 697                                 $disabled{$proto} = "option(tls)";
 698                                 }
 699                         }
 700                 elsif ($1 eq "static-engine")
 701                         {
 702                         delete $disabled{"dynamic-engine"};
 703                         }
 704                 elsif ($1 eq "dynamic-engine")
 705                         {
 706                         $disabled{"dynamic-engine"} = "option";
 707                         }
 708                 elsif (exists $deprecated_disablables{$1})
 709                         {
 710                         $deprecated_options{$_} = 1;
 711                         if (defined $deprecated_disablables{$1})
 712                                 {
 713                                 $disabled{$deprecated_disablables{$1}} = "option";
 714                                 }
 715                         }
 716                 else
 717                         {
 718                         $disabled{$1} = "option";
 719                         }
 720                 # No longer an automatic choice
 721                 $auto_threads = 0 if ($1 eq "threads");
 722                 }
 723         elsif (/^enable-(.+)$/)
 724                 {
 725                 if ($1 eq "static-engine")
 726                         {
 727                         $disabled{"dynamic-engine"} = "option";
 728                         }
 729                 elsif ($1 eq "dynamic-engine")
 730                         {
 731                         delete $disabled{"dynamic-engine"};
 732                         }
 733                 elsif ($1 eq "zlib-dynamic")
 734                         {
 735                         delete $disabled{"zlib"};
 736                         }
 737                 my $algo = $1;
 738                 delete $disabled{$algo};
 739
 740                 # No longer an automatic choice
 741                 $auto_threads = 0 if ($1 eq "threads");
 742                 }
 743         elsif (/^--strict-warnings$/)
 744                 {
 745                 $strict_warnings = 1;
 746                 }
 747         elsif (/^--debug$/)
 748                 {
 749                 $config{build_type} = "debug";
 750                 }
 751         elsif (/^--release$/)
 752                 {
 753                 $config{build_type} = "release";
 754                 }
 755         elsif (/^386$/)
 756                 { $config{processor}=386; }
 757         elsif (/^fips$/)
 758                 {
 759                 die "FIPS mode not supported\n";
 760                 }
 761         elsif (/^rsaref$/)
 762                 {
 763                 # No RSAref support any more since it's not needed.
 764                 # The check for the option is there so scripts aren't
 765                 # broken
 766                 }
 767         elsif (/^nofipscanistercheck$/)
 768                 {
 769                 die "FIPS mode not supported\n";
 770                 }
 771         elsif (/^[-+]/)
 772                 {
 773                 if (/^--prefix=(.*)$/)
 774                         {
 775                         $config{prefix}=$1;
 776                         die "Directory given with --prefix MUST be absolute\n"
 777                                 unless file_name_is_absolute($config{prefix});
 778                         }
 779                 elsif (/^--api=(.*)$/)
 780                         {
 781                         $config{api}=$1;
 782                         }
 783                 elsif (/^--libdir=(.*)$/)
 784                         {
 785                         $config{libdir}=$1;
 786                         }
 787                 elsif (/^--openssldir=(.*)$/)
 788                         {
 789                         $config{openssldir}=$1;
 790                         }
 791                 elsif (/^--with-zlib-lib=(.*)$/)
 792                         {
 793                         $withargs{zlib_lib}=$1;
 794                         }
 795                 elsif (/^--with-zlib-include=(.*)$/)
 796                         {
 797                         $withargs{zlib_include}=$1;
 798                         }
 799                 elsif (/^--with-fuzzer-lib=(.*)$/)
 800                         {
 801                         $withargs{fuzzer_lib}=$1;
 802                         }
 803                 elsif (/^--with-fuzzer-include=(.*)$/)
 804                         {
 805                         $withargs{fuzzer_include}=$1;
 806                         }
 807                 elsif (/^--with-rand-seed=(.*)$/)
 808                         {
 809                         foreach my $x (split(m|,|, $1))
 810                             {
 811                             die "Unknown --with-rand-seed choice $x\n"
 812                                 if ! grep { $x eq $_ } @known_seed_sources;
 813                             push @seed_sources, $x;
 814                             }
 815                         }
 816                 elsif (/^--cross-compile-prefix=(.*)$/)
 817                         {
 818                         $user{CROSS_COMPILE}=$1;
 819                         }
 820                 elsif (/^--config=(.*)$/)
 821                         {
 822                         read_config $1;
 823                         }
 824                 elsif (/^-L(.*)$/)
 825                         {
 826                         push @{$useradd{LDFLAGS}}, $_;
 827                         }
 828                 elsif (/^-l(.*)$/ or /^-Wl,/)
 829                         {
 830                         push @{$useradd{LDLIBS}}, $_;
 831                         }
 832                 elsif (/^-framework$/)
 833                         {
 834                         push @{$useradd{LDLIBS}}, $_, shift(@argvcopy);
 835                         }
 836                 elsif (/^-rpath$/ or /^-R$/)
 837                         # -rpath is the OSF1 rpath flag
 838                         # -R is the old Solaris rpath flag
 839                         {
 840                         my $rpath = shift(@argvcopy) || "";
 841                         $rpath .= " " if $rpath ne "";
 842                         push @{$useradd{LDFLAGS}}, $_, $rpath;
 843                         }
 844                 elsif (/^-static$/)
 845                         {
 846                         push @{$useradd{LDFLAGS}}, $_;
 847                         $disabled{"dso"} = "forced";
 848                         $disabled{"pic"} = "forced";
 849                         $disabled{"shared"} = "forced";
 850                         $disabled{"threads"} = "forced";
 851                         }
 852                 elsif (/^-D(.*)$/)
 853                         {
 854                         push @{$useradd{CPPDEFINES}}, $1;
 855                         }
 856                 elsif (/^-I(.*)$/)
 857                         {
 858                         push @{$useradd{CPPINCLUDES}}, $1;
 859                         }
 860                 elsif (/^-Wp,$/)
 861                         {
 862                         push @{$useradd{CPPFLAGS}}, $1;
 863                         }
 864                 else    # common if (/^[-+]/), just pass down...
 865                         {
 866                         $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
 867                         push @{$useradd{CFLAGS}}, $_;
 868                         push @{$useradd{CXXFLAGS}}, $_;
 869                         }
 870                 }
 871         else
 872                 {
 873                 die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
 874                 $target=$_;
 875                 }
 876         unless ($_ eq $target || /^no-/ || /^disable-/)
 877                 {
 878                 # "no-..." follows later after implied deactivations
 879                 # have been derived.  (Don't take this too seriously,
 880                 # we really only write OPTIONS to the Makefile out of
 881                 # nostalgia.)
 882
 883                 if ($config{options} eq "")
 884                         { $config{options} = $_; }
 885                 else
 886                         { $config{options} .= " ".$_; }
 887                 }
 888
 889         if (defined($config{api}) && !exists $apitable->{$config{api}}) {
 890                 die "***** Unsupported api compatibility level: $config{api}\n",
 891         }
 892
 893         if (keys %deprecated_options)
 894                 {
 895                 warn "***** Deprecated options: ",
 896                         join(", ", keys %deprecated_options), "\n";
 897                 }
 898         if (keys %unsupported_options)
 899                 {
 900                 die "***** Unsupported options: ",
 901                         join(", ", keys %unsupported_options), "\n";
 902                 }
 903         }
 904
 905 # If any %useradd entry has been set, we must check that the "make
 906 # variables" haven't been set.  We start by checking of any %useradd entry
 907 # is set.
 908 if (grep { scalar @$_ > 0 } values %useradd) {
 909     # Hash of env / make variables names.  The possible values are:
 910     # 1 - "make vars"
 911     # 2 - %useradd entry set
 912     # 3 - both set
 913     my %detected_vars =
 914         map { my $v = 0;
 915               $v += 1 if $cmdvars{$_};
 916               $v += 2 if @{$useradd{$_}};
 917               $_ => $v }
 918         keys %useradd;
 919
 920     # If any of the corresponding "make variables" is set, we error
 921     if (grep { $_ & 1 } values %detected_vars) {
 922         my $names = join(', ', grep { $detected_vars{$_} > 0 }
 923                                sort keys %detected_vars);
 924         die <<"_____";
 925 ***** Mixing make variables and additional compiler/linker flags as
 926 ***** configure command line option is not permitted.
 927 ***** Affected make variables: $names
 928 _____
 929     }
 930 }
 931
 932 # Check through all supported command line variables to see if any of them
 933 # were set, and canonicalise the values we got.  If no compiler or linker
 934 # flag or anything else that affects %useradd was set, we also check the
 935 # environment for values.
 936 my $anyuseradd =
 937     grep { defined $_ && (ref $_ ne 'ARRAY' || @$_) } values %useradd;
 938 foreach (keys %user) {
 939     my $value = $cmdvars{$_};
 940     $value //= env($_) unless $anyuseradd;
 941     $value //=
 942         defined $user_synonyms{$_} ? $cmdvars{$user_synonyms{$_}} : undef;
 943     $value //= defined $user_synonyms{$_} ? env($user_synonyms{$_}) : undef
 944         unless $anyuseradd;
 945
 946     if (defined $value) {
 947         if (ref $user{$_} eq 'ARRAY') {
 948             $user{$_} = [ split /$list_separator_re/, $value ];
 949         } elsif (!defined $user{$_}) {
 950             $user{$_} = $value;
 951         }
 952     }
 953 }
 954
 955 if (grep { $_ =~ /(^|\s)-Wl,-rpath,/ } ($user{LDLIBS} ? @{$user{LDLIBS}} : ())
 956     && !$disabled{shared}
 957     && !($disabled{asan} && $disabled{msan} && $disabled{ubsan})) {
 958     die "***** Cannot simultaneously use -rpath, shared libraries, and\n",
 959         "***** any of asan, msan or ubsan\n";
 960 }
 961
 962 my @tocheckfor = (keys %disabled);
 963 while (@tocheckfor) {
 964     my %new_tocheckfor = ();
 965     my @cascade_copy = (@disable_cascades);
 966     while (@cascade_copy) {
 967         my ($test, $descendents) = (shift @cascade_copy, shift @cascade_copy);
 968         if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
 969             foreach(grep { !defined($disabled{$_}) } @$descendents) {
 970                 $new_tocheckfor{$_} = 1; $disabled{$_} = "forced";
 971             }
 972         }
 973     }
 974     @tocheckfor = (keys %new_tocheckfor);
 975 }
 976
 977 our $die = sub { die @_; };
 978 if ($target eq "TABLE") {
 979     local $die = sub { warn @_; };
 980     foreach (sort keys %table) {
 981         print_table_entry($_, "TABLE");
 982     }
 983     exit 0;
 984 }
 985
 986 if ($target eq "LIST") {
 987     foreach (sort keys %table) {
 988         print $_,"\n" unless $table{$_}->{template};
 989     }
 990     exit 0;
 991 }
 992
 993 if ($target eq "HASH") {
 994     local $die = sub { warn @_; };
 995     print "%table = (\n";
 996     foreach (sort keys %table) {
 997         print_table_entry($_, "HASH");
 998     }
 999     exit 0;
1000 }
1001
1002 print "Configuring OpenSSL version $config{version} ($config{version_num}) ";
1003 print "for $target\n";
1004
1005 if (scalar(@seed_sources) == 0) {
1006     print "Using os-specific seed configuration\n";
1007     push @seed_sources, 'os';
1008 }
1009 die "Cannot seed with none and anything else"
1010     if scalar(grep { $_ eq 'none' } @seed_sources) > 0
1011         && scalar(@seed_sources) > 1;
1012 push @{$config{openssl_other_defines}},
1013      map { (my $x = $_) =~ tr|[\-a-z]|[_A-Z]|; "OPENSSL_RAND_SEED_$x" }
1014         @seed_sources;
1015
1016 # Backward compatibility?
1017 if ($target =~ m/^CygWin32(-.*)$/) {
1018     $target = "Cygwin".$1;
1019 }
1020
1021 # Support for legacy targets having a name starting with 'debug-'
1022 my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
1023 if ($d) {
1024     $config{build_type} = "debug";
1025
1026     # If we do not find debug-foo in the table, the target is set to foo.
1027     if (!$table{$target}) {
1028         $target = $t;
1029     }
1030 }
1031 $config{target} = $target;
1032 my %target = resolve_config($target);
1033
1034 &usage if (!%target || $target{template});
1035
1036 foreach (keys %target_attr_translate) {
1037     $target{$target_attr_translate{$_}} = $target{$_}
1038         if $target{$_};
1039     delete $target{$_};
1040 }
1041
1042 %target = ( %{$table{DEFAULTS}}, %target );
1043
1044 # Make the flags to build DSOs the same as for shared libraries unless they
1045 # are already defined
1046 $target{module_cflags} = $target{shared_cflag} unless defined $target{module_cflags};
1047 $target{module_cxxflags} = $target{shared_cxxflag} unless defined $target{module_cxxflags};
1048 $target{module_ldflags} = $target{shared_ldflag} unless defined $target{module_ldflags};
1049 {
1050     my $shared_info_pl =
1051         catfile(dirname($0), "Configurations", "shared-info.pl");
1052     my %shared_info = read_eval_file($shared_info_pl);
1053     push @{$target{_conf_fname_int}}, $shared_info_pl;
1054     my $si = $target{shared_target};
1055     while (ref $si ne "HASH") {
1056         last if ! defined $si;
1057         if (ref $si eq "CODE") {
1058             $si = $si->();
1059         } else {
1060             $si = $shared_info{$si};
1061         }
1062     }
1063
1064     # Some of the 'shared_target' values don't have any entried in
1065     # %shared_info.  That's perfectly fine, AS LONG AS the build file
1066     # template knows how to handle this.  That is currently the case for
1067     # Windows and VMS.
1068     if (defined $si) {
1069         # Just as above, copy certain shared_* attributes to the corresponding
1070         # module_ attribute unless the latter is already defined
1071         $si->{module_cflags} = $si->{shared_cflag} unless defined $si->{module_cflags};
1072         $si->{module_cxxflags} = $si->{shared_cxxflag} unless defined $si->{module_cxxflags};
1073         $si->{module_ldflags} = $si->{shared_ldflag} unless defined $si->{module_ldflags};
1074         foreach (sort keys %$si) {
1075             $target{$_} = defined $target{$_}
1076                 ? add($si->{$_})->($target{$_})
1077                 : $si->{$_};
1078         }
1079     }
1080 }
1081
1082 my %conf_files = map { $_ => 1 } (@{$target{_conf_fname_int}});
1083 $config{conf_files} = [ sort keys %conf_files ];
1084
1085 foreach my $feature (@{$target{disable}}) {
1086     if (exists $deprecated_disablables{$feature}) {
1087         warn "***** config $target disables deprecated feature $feature\n";
1088     } elsif (!grep { $feature eq $_ } @disablables) {
1089         die "***** config $target disables unknown feature $feature\n";
1090     }
1091     $disabled{$feature} = 'config';
1092 }
1093 foreach my $feature (@{$target{enable}}) {
1094     if ("default" eq ($disabled{$_} // "")) {
1095         if (exists $deprecated_disablables{$feature}) {
1096             warn "***** config $target enables deprecated feature $feature\n";
1097         } elsif (!grep { $feature eq $_ } @disablables) {
1098             die "***** config $target enables unknown feature $feature\n";
1099         }
1100         delete $disabled{$_};
1101     }
1102 }
1103
1104 $target{CXXFLAGS}//=$target{CFLAGS} if $target{CXX};
1105 $target{cxxflags}//=$target{cflags} if $target{CXX};
1106 $target{exe_extension}="";
1107 $target{exe_extension}=".exe" if ($config{target} eq "DJGPP"
1108                                   || $config{target} =~ /^(?:Cygwin|mingw)/);
1109 $target{exe_extension}=".pm"  if ($config{target} =~ /vos/);
1110
1111 ($target{shared_extension_simple}=$target{shared_extension})
1112     =~ s|\.\$\(SHLIB_VERSION_NUMBER\)||;
1113 $target{dso_extension}=$target{shared_extension_simple};
1114 ($target{shared_import_extension}=$target{shared_extension_simple}.".a")
1115     if ($config{target} =~ /^(?:Cygwin|mingw)/);
1116
1117 # Allow overriding the names of some tools.  USE WITH CARE
1118 # Note: only Unix cares about HASHBANGPERL...  that explains
1119 # the default string.
1120 $config{perl} =    ($^O ne "VMS" ? $^X : "perl");
1121 foreach (keys %user) {
1122     my $ref_type = ref $user{$_};
1123
1124     # Temporary function.  Takes an intended ref type (empty string or "ARRAY")
1125     # and a value that's to be coerced into that type.
1126     my $mkvalue = sub {
1127         my $type = shift;
1128         my $value = shift;
1129         my $undef_p = shift;
1130
1131         die "Too many arguments for \$mkvalue" if @_;
1132
1133         while (ref $value eq 'CODE') {
1134             $value = $value->();
1135         }
1136
1137         if ($type eq 'ARRAY') {
1138             return undef unless defined $value;
1139             return undef if ref $value ne 'ARRAY' && !$value;
1140             return undef if ref $value eq 'ARRAY' && !@$value;
1141             return [ $value ] unless ref $value eq 'ARRAY';
1142         }
1143         return undef unless $value;
1144         return $value;
1145     };
1146
1147     $config{$_} =
1148         $mkvalue->($ref_type, $user{$_})
1149         || $mkvalue->($ref_type, $target{$_});
1150     delete $config{$_} unless defined $config{$_};
1151 }
1152
1153 # Allow overriding the build file name
1154 $config{build_file} = env('BUILDFILE') || $target{build_file} || "Makefile";
1155
1156 my %disabled_info = ();         # For configdata.pm
1157 foreach my $what (sort keys %disabled) {
1158     $config{options} .= " no-$what";
1159
1160     if (!grep { $what eq $_ } ( 'dso', 'threads', 'shared', 'pic',
1161                                 'dynamic-engine', 'makedepend',
1162                                 'zlib-dynamic', 'zlib', 'sse2' )) {
1163         (my $WHAT = uc $what) =~ s|-|_|g;
1164
1165         # Fix up C macro end names
1166         $WHAT = "RMD160" if $what eq "ripemd";
1167
1168         # fix-up crypto/directory name(s)
1169         $what = "ripemd" if $what eq "rmd160";
1170         $what = "whrlpool" if $what eq "whirlpool";
1171
1172         my $macro = $disabled_info{$what}->{macro} = "OPENSSL_NO_$WHAT";
1173
1174         if ((grep { $what eq $_ } @{$config{sdirs}})
1175                 && $what ne 'async' && $what ne 'err') {
1176             @{$config{sdirs}} = grep { $what ne $_} @{$config{sdirs}};
1177             $disabled_info{$what}->{skipped} = [ catdir('crypto', $what) ];
1178
1179             if ($what ne 'engine') {
1180                 push @{$config{openssl_algorithm_defines}}, $macro;
1181             } else {
1182                 @{$config{dirs}} = grep !/^engines$/, @{$config{dirs}};
1183                 push @{$disabled_info{engine}->{skipped}}, catdir('engines');
1184                 push @{$config{openssl_other_defines}}, $macro;
1185             }
1186         } else {
1187             push @{$config{openssl_other_defines}}, $macro;
1188         }
1189
1190     }
1191 }
1192
1193 # Make sure build_scheme is consistent.
1194 $target{build_scheme} = [ $target{build_scheme} ]
1195     if ref($target{build_scheme}) ne "ARRAY";
1196
1197 my ($builder, $builder_platform, @builder_opts) =
1198     @{$target{build_scheme}};
1199
1200 foreach my $checker (($builder_platform."-".$target{build_file}."-checker.pm",
1201                       $builder_platform."-checker.pm")) {
1202     my $checker_path = catfile($srcdir, "Configurations", $checker);
1203     if (-f $checker_path) {
1204         my $fn = $ENV{CONFIGURE_CHECKER_WARN}
1205             ? sub { warn $@; } : sub { die $@; };
1206         if (! do $checker_path) {
1207             if ($@) {
1208                 $fn->($@);
1209             } elsif ($!) {
1210                 $fn->($!);
1211             } else {
1212                 $fn->("The detected tools didn't match the platform\n");
1213             }
1214         }
1215         last;
1216     }
1217 }
1218
1219 push @{$config{defines}}, "NDEBUG"    if $config{build_type} eq "release";
1220
1221 if ($target =~ /^mingw/ && `$config{CC} --target-help 2>&1` =~ m/-mno-cygwin/m)
1222         {
1223         push @{$config{cflags}}, "-mno-cygwin";
1224         push @{$config{cxxflags}}, "-mno-cygwin" if $config{CXX};
1225         push @{$config{shared_ldflag}}, "-mno-cygwin";
1226         }
1227
1228 if ($target =~ /linux.*-mips/ && !$disabled{asm}
1229         && !grep { $_ !~ /-m(ips|arch=)/ } (@{$user{CFLAGS}},
1230                                             @{$useradd{CFLAGS}})) {
1231         # minimally required architecture flags for assembly modules
1232         my $value;
1233         $value = '-mips2' if ($target =~ /mips32/);
1234         $value = '-mips3' if ($target =~ /mips64/);
1235         unshift @{$config{cflags}}, $value;
1236         unshift @{$config{cxxflags}}, $value if $config{CXX};
1237 }
1238
1239 # If threads aren't disabled, check how possible they are
1240 unless ($disabled{threads}) {
1241     if ($auto_threads) {
1242         # Enabled by default, disable it forcibly if unavailable
1243         if ($target{thread_scheme} eq "(unknown)") {
1244             $disabled{threads} = "unavailable";
1245         }
1246     } else {
1247         # The user chose to enable threads explicitly, let's see
1248         # if there's a chance that's possible
1249         if ($target{thread_scheme} eq "(unknown)") {
1250             # If the user asked for "threads" and we don't have internal
1251             # knowledge how to do it, [s]he is expected to provide any
1252             # system-dependent compiler options that are necessary.  We
1253             # can't truly check that the given options are correct, but
1254             # we expect the user to know what [s]He is doing.
1255             if (!@{$user{CFLAGS}} && !@{$useradd{CFLAGS}}
1256                     && !@{$user{CPPDEFINES}} && !@{$useradd{CPPDEFINES}}) {
1257                 die "You asked for multi-threading support, but didn't\n"
1258                     ,"provide any system-specific compiler options\n";
1259             }
1260         }
1261     }
1262 }
1263
1264 # If threads still aren't disabled, add a C macro to ensure the source
1265 # code knows about it.  Any other flag is taken care of by the configs.
1266 unless($disabled{threads}) {
1267     push @{$config{openssl_thread_defines}}, "OPENSSL_THREADS";
1268 }
1269
1270 # With "deprecated" disable all deprecated features.
1271 if (defined($disabled{"deprecated"})) {
1272         $config{api} = $maxapi;
1273 }
1274
1275 my $no_shared_warn=0;
1276 if ($target{shared_target} eq "")
1277         {
1278         $no_shared_warn = 1
1279             if (!$disabled{shared} || !$disabled{"dynamic-engine"});
1280         $disabled{shared} = "no-shared-target";
1281         $disabled{pic} = $disabled{shared} = $disabled{"dynamic-engine"} =
1282             "no-shared-target";
1283         }
1284
1285 if ($disabled{"dynamic-engine"}) {
1286         push @{$config{openssl_other_defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
1287         $config{dynamic_engines} = 0;
1288 } else {
1289         push @{$config{openssl_other_defines}}, "OPENSSL_NO_STATIC_ENGINE";
1290         $config{dynamic_engines} = 1;
1291 }
1292
1293 unless ($disabled{asan}) {
1294     push @{$config{cflags}}, "-fsanitize=address";
1295     push @{$config{cxxflags}}, "-fsanitize=address" if $config{CXX};
1296 }
1297
1298 unless ($disabled{ubsan}) {
1299     # -DPEDANTIC or -fnosanitize=alignment may also be required on some
1300     # platforms.
1301     push @{$config{cflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all";
1302     push @{$config{cxxflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all"
1303         if $config{CXX};
1304 }
1305
1306 unless ($disabled{msan}) {
1307   push @{$config{cflags}}, "-fsanitize=memory";
1308   push @{$config{cxxflags}}, "-fsanitize=memory" if $config{CXX};
1309 }
1310
1311 unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
1312         && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
1313     push @{$config{cflags}}, "-fno-omit-frame-pointer", "-g";
1314     push @{$config{cxxflags}}, "-fno-omit-frame-pointer", "-g" if $config{CXX};
1315 }
1316 #
1317 # Platform fix-ups
1318 #
1319
1320 # This saves the build files from having to check
1321 if ($disabled{pic})
1322         {
1323         foreach (qw(shared_cflag shared_cxxflag shared_cppflag
1324                     shared_defines shared_includes shared_ldflag
1325                     module_cflags module_cxxflags module_cppflags
1326                     module_defines module_includes module_lflags))
1327                 {
1328                 delete $config{$_};
1329                 $target{$_} = "";
1330                 }
1331         }
1332 else
1333         {
1334         push @{$config{lib_defines}}, "OPENSSL_PIC";
1335         }
1336
1337 if ($target{sys_id} ne "")
1338         {
1339         push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
1340         }
1341
1342 unless ($disabled{asm}) {
1343     $target{cpuid_asm_src}=$table{DEFAULTS}->{cpuid_asm_src} if ($config{processor} eq "386");
1344     push @{$config{lib_defines}}, "OPENSSL_CPUID_OBJ" if ($target{cpuid_asm_src} ne "mem_clr.c");
1345
1346     $target{bn_asm_src} =~ s/\w+-gf2m.c// if (defined($disabled{ec2m}));
1347
1348     # bn-586 is the only one implementing bn_*_part_words
1349     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_PART_WORDS" if ($target{bn_asm_src} =~ /bn-586/);
1350     push @{$config{lib_defines}}, "OPENSSL_IA32_SSE2" if (!$disabled{sse2} && $target{bn_asm_src} =~ /86/);
1351
1352     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT" if ($target{bn_asm_src} =~ /-mont/);
1353     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT5" if ($target{bn_asm_src} =~ /-mont5/);
1354     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_GF2m" if ($target{bn_asm_src} =~ /-gf2m/);
1355
1356     if ($target{sha1_asm_src}) {
1357         push @{$config{lib_defines}}, "SHA1_ASM"   if ($target{sha1_asm_src} =~ /sx86/ || $target{sha1_asm_src} =~ /sha1/);
1358         push @{$config{lib_defines}}, "SHA256_ASM" if ($target{sha1_asm_src} =~ /sha256/);
1359         push @{$config{lib_defines}}, "SHA512_ASM" if ($target{sha1_asm_src} =~ /sha512/);
1360     }
1361     if ($target{rc4_asm_src} ne $table{DEFAULTS}->{rc4_asm_src}) {
1362         push @{$config{lib_defines}}, "RC4_ASM";
1363     }
1364     if ($target{md5_asm_src}) {
1365         push @{$config{lib_defines}}, "MD5_ASM";
1366     }
1367     $target{cast_asm_src}=$table{DEFAULTS}->{cast_asm_src} unless $disabled{pic}; # CAST assembler is not PIC
1368     if ($target{rmd160_asm_src}) {
1369         push @{$config{lib_defines}}, "RMD160_ASM";
1370     }
1371     if ($target{aes_asm_src}) {
1372         push @{$config{lib_defines}}, "AES_ASM" if ($target{aes_asm_src} =~ m/\baes-/);;
1373         # aes-ctr.fake is not a real file, only indication that assembler
1374         # module implements AES_ctr32_encrypt...
1375         push @{$config{lib_defines}}, "AES_CTR_ASM" if ($target{aes_asm_src} =~ s/\s*aes-ctr\.fake//);
1376         # aes-xts.fake indicates presence of AES_xts_[en|de]crypt...
1377         push @{$config{lib_defines}}, "AES_XTS_ASM" if ($target{aes_asm_src} =~ s/\s*aes-xts\.fake//);
1378         $target{aes_asm_src} =~ s/\s*(vpaes|aesni)-x86\.s//g if ($disabled{sse2});
1379         push @{$config{lib_defines}}, "VPAES_ASM" if ($target{aes_asm_src} =~ m/vpaes/);
1380         push @{$config{lib_defines}}, "BSAES_ASM" if ($target{aes_asm_src} =~ m/bsaes/);
1381     }
1382     if ($target{wp_asm_src} =~ /mmx/) {
1383         if ($config{processor} eq "386") {
1384             $target{wp_asm_src}=$table{DEFAULTS}->{wp_asm_src};
1385         } elsif (!$disabled{"whirlpool"}) {
1386             push @{$config{lib_defines}}, "WHIRLPOOL_ASM";
1387         }
1388     }
1389     if ($target{modes_asm_src} =~ /ghash-/) {
1390         push @{$config{lib_defines}}, "GHASH_ASM";
1391     }
1392     if ($target{ec_asm_src} =~ /ecp_nistz256/) {
1393         push @{$config{lib_defines}}, "ECP_NISTZ256_ASM";
1394     }
1395     if ($target{ec_asm_src} =~ /x25519/) {
1396         push @{$config{lib_defines}}, "X25519_ASM";
1397     }
1398     if ($target{padlock_asm_src} ne $table{DEFAULTS}->{padlock_asm_src}) {
1399         push @{$config{lib_defines}}, "PADLOCK_ASM";
1400     }
1401     if ($target{poly1305_asm_src} ne "") {
1402         push @{$config{lib_defines}}, "POLY1305_ASM";
1403     }
1404 }
1405
1406 my %predefined = compiler_predefined($config{CC});
1407
1408 # Check for makedepend capabilities.
1409 if (!$disabled{makedepend}) {
1410     if ($config{target} =~ /^(VC|vms)-/) {
1411         # For VC- and vms- targets, there's nothing more to do here.  The
1412         # functionality is hard coded in the corresponding build files for
1413         # cl (Windows) and CC/DECC (VMS).
1414     } elsif ($predefined{__GNUC__} >= 3) {
1415         # We know that GNU C version 3 and up as well as all clang
1416         # versions support dependency generation
1417         $config{makedepprog} = "\$(CROSS_COMPILE)$config{CC}";
1418     } else {
1419         # In all other cases, we look for 'makedepend', and disable the
1420         # capability if not found.
1421         $config{makedepprog} = which('makedepend');
1422         $disabled{makedepend} = "unavailable" unless $config{makedepprog};
1423     }
1424 }
1425
1426
1427 # Deal with bn_ops ###################################################
1428
1429 $config{bn_ll}                  =0;
1430 $config{export_var_as_fn}       =0;
1431 my $def_int="unsigned int";
1432 $config{rc4_int}                =$def_int;
1433 ($config{b64l},$config{b64},$config{b32})=(0,0,1);
1434
1435 my $count = 0;
1436 foreach (sort split(/\s+/,$target{bn_ops})) {
1437     $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
1438     $config{export_var_as_fn}=1                 if $_ eq 'EXPORT_VAR_AS_FN';
1439     $config{bn_ll}=1                            if $_ eq 'BN_LLONG';
1440     $config{rc4_int}="unsigned char"            if $_ eq 'RC4_CHAR';
1441     ($config{b64l},$config{b64},$config{b32})
1442         =(0,1,0)                                if $_ eq 'SIXTY_FOUR_BIT';
1443     ($config{b64l},$config{b64},$config{b32})
1444         =(1,0,0)                                if $_ eq 'SIXTY_FOUR_BIT_LONG';
1445     ($config{b64l},$config{b64},$config{b32})
1446         =(0,0,1)                                if $_ eq 'THIRTY_TWO_BIT';
1447 }
1448 die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
1449     if $count > 1;
1450
1451
1452 # Hack cflags for better warnings (dev option) #######################
1453
1454 # "Stringify" the C and C++ flags string.  This permits it to be made part of
1455 # a string and works as well on command lines.
1456 $config{cflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1457                         @{$config{cflags}} ];
1458 $config{cxxflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1459                           @{$config{cxxflags}} ] if $config{CXX};
1460
1461 if (defined($config{api})) {
1462     $config{openssl_api_defines} = [ "OPENSSL_MIN_API=".$apitable->{$config{api}} ];
1463     my $apiflag = sprintf("OPENSSL_API_COMPAT=%s", $apitable->{$config{api}});
1464     push @{$config{defines}}, $apiflag;
1465 }
1466
1467 if (defined($predefined{__clang__}) && !$disabled{asm}) {
1468     push @{$config{cflags}}, "-Qunused-arguments";
1469     push @{$config{cxxflags}}, "-Qunused-arguments" if $config{CXX};
1470 }
1471
1472 if ($strict_warnings)
1473         {
1474         my $wopt;
1475         my $gccver = $predefined{__GNUC__} // -1;
1476
1477         die "ERROR --strict-warnings requires gcc[>=4] or gcc-alike"
1478             unless $gccver >= 4;
1479         foreach $wopt (split /\s+/, $gcc_devteam_warn)
1480                 {
1481                 push @{$config{cflags}}, $wopt
1482                         unless grep { $_ eq $wopt } @{$config{cflags}};
1483                 push @{$config{cxxflags}}, $wopt
1484                         if ($config{CXX}
1485                             && !grep { $_ eq $wopt } @{$config{cxxflags}});
1486                 }
1487         if (defined($predefined{__clang__}))
1488                 {
1489                 foreach $wopt (split /\s+/, $clang_devteam_warn)
1490                         {
1491                         push @{$config{cflags}}, $wopt
1492                                 unless grep { $_ eq $wopt } @{$config{cflags}};
1493                         push @{$config{cxxflags}}, $wopt
1494                                 if ($config{CXX}
1495                                     && !grep { $_ eq $wopt } @{$config{cxxflags}});
1496                         }
1497                 }
1498         }
1499
1500 unless ($disabled{"crypto-mdebug-backtrace"})
1501         {
1502         foreach my $wopt (split /\s+/, $memleak_devteam_backtrace)
1503                 {
1504                 push @{$config{cflags}}, $wopt
1505                         unless grep { $_ eq $wopt } @{$config{cflags}};
1506                 push @{$config{cxxflags}}, $wopt
1507                         if ($config{CXX}
1508                             && !grep { $_ eq $wopt } @{$config{cxxflags}});
1509                 }
1510         if ($target =~ /^BSD-/)
1511                 {
1512                 push @{$config{ex_libs}}, "-lexecinfo";
1513                 }
1514         }
1515
1516 unless ($disabled{afalgeng}) {
1517     $config{afalgeng}="";
1518     if (grep { $_ eq 'afalgeng' } @{$target{enable}}) {
1519         my $minver = 4*10000 + 1*100 + 0;
1520         if ($config{CROSS_COMPILE} eq "") {
1521             my $verstr = `uname -r`;
1522             my ($ma, $mi1, $mi2) = split("\\.", $verstr);
1523             ($mi2) = $mi2 =~ /(\d+)/;
1524             my $ver = $ma*10000 + $mi1*100 + $mi2;
1525             if ($ver < $minver) {
1526                 $disabled{afalgeng} = "too-old-kernel";
1527             } else {
1528                 push @{$config{engdirs}}, "afalg";
1529             }
1530         } else {
1531             $disabled{afalgeng} = "cross-compiling";
1532         }
1533     } else {
1534         $disabled{afalgeng}  = "not-linux";
1535     }
1536 }
1537
1538 push @{$config{openssl_other_defines}}, "OPENSSL_NO_AFALGENG" if ($disabled{afalgeng});
1539
1540 # Finish up %config by appending things the user gave us on the command line
1541 # apart from "make variables"
1542 foreach (keys %useradd) {
1543     # The must all be lists, so we assert that here
1544     die "internal error: \$useradd{$_} isn't an ARRAY\n"
1545         unless ref $useradd{$_} eq 'ARRAY';
1546
1547     if (defined $config{$_}) {
1548         push @{$config{$_}}, @{$useradd{$_}};
1549     } else {
1550         $config{$_} = [ @{$useradd{$_}} ];
1551     }
1552 }
1553
1554 # ALL MODIFICATIONS TO %config and %target MUST BE DONE FROM HERE ON
1555
1556 # If we use the unified build, collect information from build.info files
1557 my %unified_info = ();
1558
1559 my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
1560 if ($builder eq "unified") {
1561     use with_fallback qw(Text::Template);
1562
1563     sub cleandir {
1564         my $base = shift;
1565         my $dir = shift;
1566         my $relativeto = shift || ".";
1567
1568         $dir = catdir($base,$dir) unless isabsolute($dir);
1569
1570         # Make sure the directories we're building in exists
1571         mkpath($dir);
1572
1573         my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
1574         #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
1575         return $res;
1576     }
1577
1578     sub cleanfile {
1579         my $base = shift;
1580         my $file = shift;
1581         my $relativeto = shift || ".";
1582
1583         $file = catfile($base,$file) unless isabsolute($file);
1584
1585         my $d = dirname($file);
1586         my $f = basename($file);
1587
1588         # Make sure the directories we're building in exists
1589         mkpath($d);
1590
1591         my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
1592         #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
1593         return $res;
1594     }
1595
1596     # Store the name of the template file we will build the build file from
1597     # in %config.  This may be useful for the build file itself.
1598     my @build_file_template_names =
1599         ( $builder_platform."-".$target{build_file}.".tmpl",
1600           $target{build_file}.".tmpl" );
1601     my @build_file_templates = ();
1602
1603     # First, look in the user provided directory, if given
1604     if (defined env($local_config_envname)) {
1605         @build_file_templates =
1606             map {
1607                 if ($^O eq 'VMS') {
1608                     # VMS environment variables are logical names,
1609                     # which can be used as is
1610                     $local_config_envname . ':' . $_;
1611                 } else {
1612                     catfile(env($local_config_envname), $_);
1613                 }
1614             }
1615             @build_file_template_names;
1616     }
1617     # Then, look in our standard directory
1618     push @build_file_templates,
1619         ( map { cleanfile($srcdir, catfile("Configurations", $_), $blddir) }
1620           @build_file_template_names );
1621
1622     my $build_file_template;
1623     for $_ (@build_file_templates) {
1624         $build_file_template = $_;
1625         last if -f $build_file_template;
1626
1627         $build_file_template = undef;
1628     }
1629     if (!defined $build_file_template) {
1630         die "*** Couldn't find any of:\n", join("\n", @build_file_templates), "\n";
1631     }
1632     $config{build_file_templates}
1633       = [ cleanfile($srcdir, catfile("Configurations", "common0.tmpl"),
1634                     $blddir),
1635           $build_file_template,
1636           cleanfile($srcdir, catfile("Configurations", "common.tmpl"),
1637                     $blddir) ];
1638
1639     my @build_infos = ( [ ".", "build.info" ] );
1640     foreach (@{$config{dirs}}) {
1641         push @build_infos, [ $_, "build.info" ]
1642             if (-f catfile($srcdir, $_, "build.info"));
1643     }
1644     foreach (@{$config{sdirs}}) {
1645         push @build_infos, [ catdir("crypto", $_), "build.info" ]
1646             if (-f catfile($srcdir, "crypto", $_, "build.info"));
1647     }
1648     foreach (@{$config{engdirs}}) {
1649         push @build_infos, [ catdir("engines", $_), "build.info" ]
1650             if (-f catfile($srcdir, "engines", $_, "build.info"));
1651     }
1652     foreach (@{$config{tdirs}}) {
1653         push @build_infos, [ catdir("test", $_), "build.info" ]
1654             if (-f catfile($srcdir, "test", $_, "build.info"));
1655     }
1656
1657     $config{build_infos} = [ ];
1658
1659     my %ordinals = ();
1660     foreach (@build_infos) {
1661         my $sourced = catdir($srcdir, $_->[0]);
1662         my $buildd = catdir($blddir, $_->[0]);
1663
1664         mkpath($buildd);
1665
1666         my $f = $_->[1];
1667         # The basic things we're trying to build
1668         my @programs = ();
1669         my @programs_install = ();
1670         my @libraries = ();
1671         my @libraries_install = ();
1672         my @engines = ();
1673         my @engines_install = ();
1674         my @scripts = ();
1675         my @scripts_install = ();
1676         my @extra = ();
1677         my @overrides = ();
1678         my @intermediates = ();
1679         my @rawlines = ();
1680
1681         my %sources = ();
1682         my %shared_sources = ();
1683         my %includes = ();
1684         my %depends = ();
1685         my %renames = ();
1686         my %sharednames = ();
1687         my %generate = ();
1688
1689         # We want to detect configdata.pm in the source tree, so we
1690         # don't use it if the build tree is different.
1691         my $src_configdata = cleanfile($srcdir, "configdata.pm", $blddir);
1692
1693         push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
1694         my $template =
1695             Text::Template->new(TYPE => 'FILE',
1696                                 SOURCE => catfile($sourced, $f),
1697                                 PREPEND => qq{use lib "$FindBin::Bin/util/perl";});
1698         die "Something went wrong with $sourced/$f: $!\n" unless $template;
1699         my @text =
1700             split /^/m,
1701             $template->fill_in(HASH => { config => \%config,
1702                                          target => \%target,
1703                                          disabled => \%disabled,
1704                                          withargs => \%withargs,
1705                                          builddir => abs2rel($buildd, $blddir),
1706                                          sourcedir => abs2rel($sourced, $blddir),
1707                                          buildtop => abs2rel($blddir, $blddir),
1708                                          sourcetop => abs2rel($srcdir, $blddir) },
1709                                DELIMITERS => [ "{-", "-}" ]);
1710
1711         # The top item of this stack has the following values
1712         # -2 positive already run and we found ELSE (following ELSIF should fail)
1713         # -1 positive already run (skip until ENDIF)
1714         # 0 negatives so far (if we're at a condition, check it)
1715         # 1 last was positive (don't skip lines until next ELSE, ELSIF or ENDIF)
1716         # 2 positive ELSE (following ELSIF should fail)
1717         my @skip = ();
1718         collect_information(
1719             collect_from_array([ @text ],
1720                                qr/\\$/ => sub { my $l1 = shift; my $l2 = shift;
1721                                                 $l1 =~ s/\\$//; $l1.$l2 }),
1722             # Info we're looking for
1723             qr/^\s*IF\[((?:\\.|[^\\\]])*)\]\s*$/
1724             => sub {
1725                 if (! @skip || $skip[$#skip] > 0) {
1726                     push @skip, !! $1;
1727                 } else {
1728                     push @skip, -1;
1729                 }
1730             },
1731             qr/^\s*ELSIF\[((?:\\.|[^\\\]])*)\]\s*$/
1732             => sub { die "ELSIF out of scope" if ! @skip;
1733                      die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
1734                      $skip[$#skip] = -1 if $skip[$#skip] != 0;
1735                      $skip[$#skip] = !! $1
1736                          if $skip[$#skip] == 0; },
1737             qr/^\s*ELSE\s*$/
1738             => sub { die "ELSE out of scope" if ! @skip;
1739                      $skip[$#skip] = -2 if $skip[$#skip] != 0;
1740                      $skip[$#skip] = 2 if $skip[$#skip] == 0; },
1741             qr/^\s*ENDIF\s*$/
1742             => sub { die "ENDIF out of scope" if ! @skip;
1743                      pop @skip; },
1744             qr/^\s*PROGRAMS(_NO_INST)?\s*=\s*(.*)\s*$/
1745             => sub {
1746                 if (!@skip || $skip[$#skip] > 0) {
1747                     my $install = $1;
1748                     my @x = tokenize($2);
1749                     push @programs, @x;
1750                     push @programs_install, @x unless $install;
1751                 }
1752             },
1753             qr/^\s*LIBS(_NO_INST)?\s*=\s*(.*)\s*$/
1754             => sub {
1755                 if (!@skip || $skip[$#skip] > 0) {
1756                     my $install = $1;
1757                     my @x = tokenize($2);
1758                     push @libraries, @x;
1759                     push @libraries_install, @x unless $install;
1760                 }
1761             },
1762             qr/^\s*ENGINES(_NO_INST)?\s*=\s*(.*)\s*$/
1763             => sub {
1764                 if (!@skip || $skip[$#skip] > 0) {
1765                     my $install = $1;
1766                     my @x = tokenize($2);
1767                     push @engines, @x;
1768                     push @engines_install, @x unless $install;
1769                 }
1770             },
1771             qr/^\s*SCRIPTS(_NO_INST)?\s*=\s*(.*)\s*$/
1772             => sub {
1773                 if (!@skip || $skip[$#skip] > 0) {
1774                     my $install = $1;
1775                     my @x = tokenize($2);
1776                     push @scripts, @x;
1777                     push @scripts_install, @x unless $install;
1778                 }
1779             },
1780             qr/^\s*EXTRA\s*=\s*(.*)\s*$/
1781             => sub { push @extra, tokenize($1)
1782                          if !@skip || $skip[$#skip] > 0 },
1783             qr/^\s*OVERRIDES\s*=\s*(.*)\s*$/
1784             => sub { push @overrides, tokenize($1)
1785                          if !@skip || $skip[$#skip] > 0 },
1786
1787             qr/^\s*ORDINALS\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/,
1788             => sub { push @{$ordinals{$1}}, tokenize($2)
1789                          if !@skip || $skip[$#skip] > 0 },
1790             qr/^\s*SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1791             => sub { push @{$sources{$1}}, tokenize($2)
1792                          if !@skip || $skip[$#skip] > 0 },
1793             qr/^\s*SHARED_SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1794             => sub { push @{$shared_sources{$1}}, tokenize($2)
1795                          if !@skip || $skip[$#skip] > 0 },
1796             qr/^\s*INCLUDE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1797             => sub { push @{$includes{$1}}, tokenize($2)
1798                          if !@skip || $skip[$#skip] > 0 },
1799             qr/^\s*DEPEND\[((?:\\.|[^\\\]])*)\]\s*=\s*(.*)\s*$/
1800             => sub { push @{$depends{$1}}, tokenize($2)
1801                          if !@skip || $skip[$#skip] > 0 },
1802             qr/^\s*GENERATE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1803             => sub { push @{$generate{$1}}, $2
1804                          if !@skip || $skip[$#skip] > 0 },
1805             qr/^\s*RENAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1806             => sub { push @{$renames{$1}}, tokenize($2)
1807                          if !@skip || $skip[$#skip] > 0 },
1808             qr/^\s*SHARED_NAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1809             => sub { push @{$sharednames{$1}}, tokenize($2)
1810                          if !@skip || $skip[$#skip] > 0 },
1811             qr/^\s*BEGINRAW\[((?:\\.|[^\\\]])+)\]\s*$/
1812             => sub {
1813                 my $lineiterator = shift;
1814                 my $target_kind = $1;
1815                 while (defined $lineiterator->()) {
1816                     s|\R$||;
1817                     if (/^\s*ENDRAW\[((?:\\.|[^\\\]])+)\]\s*$/) {
1818                         die "ENDRAW doesn't match BEGINRAW"
1819                             if $1 ne $target_kind;
1820                         last;
1821                     }
1822                     next if @skip && $skip[$#skip] <= 0;
1823                     push @rawlines,  $_
1824                         if ($target_kind eq $target{build_file}
1825                             || $target_kind eq $target{build_file}."(".$builder_platform.")");
1826                 }
1827             },
1828             qr/^\s*(?:#.*)?$/ => sub { },
1829             "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
1830             "BEFORE" => sub {
1831                 if ($buildinfo_debug) {
1832                     print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
1833                     print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1834                 }
1835             },
1836             "AFTER" => sub {
1837                 if ($buildinfo_debug) {
1838                     print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1839                 }
1840             },
1841             );
1842         die "runaway IF?" if (@skip);
1843
1844         foreach (keys %renames) {
1845             die "$_ renamed to more than one thing: "
1846                 ,join(" ", @{$renames{$_}}),"\n"
1847                 if scalar @{$renames{$_}} > 1;
1848             my $dest = cleanfile($buildd, $_, $blddir);
1849             my $to = cleanfile($buildd, $renames{$_}->[0], $blddir);
1850             die "$dest renamed to more than one thing: "
1851                 ,$unified_info{rename}->{$dest}, $to
1852                 unless !defined($unified_info{rename}->{$dest})
1853                 or $unified_info{rename}->{$dest} eq $to;
1854             $unified_info{rename}->{$dest} = $to;
1855         }
1856
1857         foreach (@programs) {
1858             my $program = cleanfile($buildd, $_, $blddir);
1859             if ($unified_info{rename}->{$program}) {
1860                 $program = $unified_info{rename}->{$program};
1861             }
1862             $unified_info{programs}->{$program} = 1;
1863         }
1864
1865         foreach (@programs_install) {
1866             my $program = cleanfile($buildd, $_, $blddir);
1867             if ($unified_info{rename}->{$program}) {
1868                 $program = $unified_info{rename}->{$program};
1869             }
1870             $unified_info{install}->{programs}->{$program} = 1;
1871         }
1872
1873         foreach (@libraries) {
1874             my $library = cleanfile($buildd, $_, $blddir);
1875             if ($unified_info{rename}->{$library}) {
1876                 $library = $unified_info{rename}->{$library};
1877             }
1878             $unified_info{libraries}->{$library} = 1;
1879         }
1880
1881         foreach (@libraries_install) {
1882             my $library = cleanfile($buildd, $_, $blddir);
1883             if ($unified_info{rename}->{$library}) {
1884                 $library = $unified_info{rename}->{$library};
1885             }
1886             $unified_info{install}->{libraries}->{$library} = 1;
1887         }
1888
1889         die <<"EOF" if scalar @engines and !$config{dynamic_engines};
1890 ENGINES can only be used if configured with 'dynamic-engine'.
1891 This is usually a fault in a build.info file.
1892 EOF
1893         foreach (@engines) {
1894             my $library = cleanfile($buildd, $_, $blddir);
1895             if ($unified_info{rename}->{$library}) {
1896                 $library = $unified_info{rename}->{$library};
1897             }
1898             $unified_info{engines}->{$library} = 1;
1899         }
1900
1901         foreach (@engines_install) {
1902             my $library = cleanfile($buildd, $_, $blddir);
1903             if ($unified_info{rename}->{$library}) {
1904                 $library = $unified_info{rename}->{$library};
1905             }
1906             $unified_info{install}->{engines}->{$library} = 1;
1907         }
1908
1909         foreach (@scripts) {
1910             my $script = cleanfile($buildd, $_, $blddir);
1911             if ($unified_info{rename}->{$script}) {
1912                 $script = $unified_info{rename}->{$script};
1913             }
1914             $unified_info{scripts}->{$script} = 1;
1915         }
1916
1917         foreach (@scripts_install) {
1918             my $script = cleanfile($buildd, $_, $blddir);
1919             if ($unified_info{rename}->{$script}) {
1920                 $script = $unified_info{rename}->{$script};
1921             }
1922             $unified_info{install}->{scripts}->{$script} = 1;
1923         }
1924
1925         foreach (@extra) {
1926             my $extra = cleanfile($buildd, $_, $blddir);
1927             $unified_info{extra}->{$extra} = 1;
1928         }
1929
1930         foreach (@overrides) {
1931             my $override = cleanfile($buildd, $_, $blddir);
1932             $unified_info{overrides}->{$override} = 1;
1933         }
1934
1935         push @{$unified_info{rawlines}}, @rawlines;
1936
1937         unless ($disabled{shared}) {
1938             # Check sharednames.
1939             foreach (keys %sharednames) {
1940                 my $dest = cleanfile($buildd, $_, $blddir);
1941                 if ($unified_info{rename}->{$dest}) {
1942                     $dest = $unified_info{rename}->{$dest};
1943                 }
1944                 die "shared_name for $dest with multiple values: "
1945                     ,join(" ", @{$sharednames{$_}}),"\n"
1946                     if scalar @{$sharednames{$_}} > 1;
1947                 my $to = cleanfile($buildd, $sharednames{$_}->[0], $blddir);
1948                 die "shared_name found for a library $dest that isn't defined\n"
1949                     unless $unified_info{libraries}->{$dest};
1950                 die "shared_name for $dest with multiple values: "
1951                     ,$unified_info{sharednames}->{$dest}, ", ", $to
1952                     unless !defined($unified_info{sharednames}->{$dest})
1953                     or $unified_info{sharednames}->{$dest} eq $to;
1954                 $unified_info{sharednames}->{$dest} = $to;
1955             }
1956
1957             # Additionally, we set up sharednames for libraries that don't
1958             # have any, as themselves.  Only for libraries that aren't
1959             # explicitly static.
1960             foreach (grep !/\.a$/, keys %{$unified_info{libraries}}) {
1961                 if (!defined $unified_info{sharednames}->{$_}) {
1962                     $unified_info{sharednames}->{$_} = $_
1963                 }
1964             }
1965
1966             # Check that we haven't defined any library as both shared and
1967             # explicitly static.  That is forbidden.
1968             my @doubles = ();
1969             foreach (grep /\.a$/, keys %{$unified_info{libraries}}) {
1970                 (my $l = $_) =~ s/\.a$//;
1971                 push @doubles, $l if defined $unified_info{sharednames}->{$l};
1972             }
1973             die "these libraries are both explicitly static and shared:\n  ",
1974                 join(" ", @doubles), "\n"
1975                 if @doubles;
1976         }
1977
1978         foreach (keys %sources) {
1979             my $dest = $_;
1980             my $ddest = cleanfile($buildd, $_, $blddir);
1981             if ($unified_info{rename}->{$ddest}) {
1982                 $ddest = $unified_info{rename}->{$ddest};
1983             }
1984             foreach (@{$sources{$dest}}) {
1985                 my $s = cleanfile($sourced, $_, $blddir);
1986
1987                 # If it isn't in the source tree, we assume it's generated
1988                 # in the build tree
1989                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
1990                     $s = cleanfile($buildd, $_, $blddir);
1991                 }
1992                 # We recognise C++, C and asm files
1993                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
1994                     my $o = $_;
1995                     $o =~ s/\.[csS]$/.o/; # C and assembler
1996                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
1997                     $o = cleanfile($buildd, $o, $blddir);
1998                     $unified_info{sources}->{$ddest}->{$o} = 1;
1999                     $unified_info{sources}->{$o}->{$s} = 1;
2000                 } elsif ($s =~ /\.rc$/) {
2001                     # We also recognise resource files
2002                     my $o = $_;
2003                     $o =~ s/\.rc$/.res/; # Resource configuration
2004                     my $o = cleanfile($buildd, $o, $blddir);
2005                     $unified_info{sources}->{$ddest}->{$o} = 1;
2006                     $unified_info{sources}->{$o}->{$s} = 1;
2007                 } else {
2008                     $unified_info{sources}->{$ddest}->{$s} = 1;
2009                 }
2010             }
2011         }
2012
2013         foreach (keys %shared_sources) {
2014             my $dest = $_;
2015             my $ddest = cleanfile($buildd, $_, $blddir);
2016             if ($unified_info{rename}->{$ddest}) {
2017                 $ddest = $unified_info{rename}->{$ddest};
2018             }
2019             foreach (@{$shared_sources{$dest}}) {
2020                 my $s = cleanfile($sourced, $_, $blddir);
2021
2022                 # If it isn't in the source tree, we assume it's generated
2023                 # in the build tree
2024                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
2025                     $s = cleanfile($buildd, $_, $blddir);
2026                 }
2027
2028                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2029                     # We recognise C++, C and asm files
2030                     my $o = $_;
2031                     $o =~ s/\.[csS]$/.o/; # C and assembler
2032                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2033                     $o = cleanfile($buildd, $o, $blddir);
2034                     $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2035                     $unified_info{sources}->{$o}->{$s} = 1;
2036                 } elsif ($s =~ /\.rc$/) {
2037                     # We also recognise resource files
2038                     my $o = $_;
2039                     $o =~ s/\.rc$/.res/; # Resource configuration
2040                     my $o = cleanfile($buildd, $o, $blddir);
2041                     $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2042                     $unified_info{sources}->{$o}->{$s} = 1;
2043                 } elsif ($s =~ /\.(def|map|opt)$/) {
2044                     # We also recognise .def / .map / .opt files
2045                     # We know they are generated files
2046                     my $def = cleanfile($buildd, $s, $blddir);
2047                     $unified_info{shared_sources}->{$ddest}->{$def} = 1;
2048                 } else {
2049                     die "unrecognised source file type for shared library: $s\n";
2050                 }
2051             }
2052         }
2053
2054         foreach (keys %generate) {
2055             my $dest = $_;
2056             my $ddest = cleanfile($buildd, $_, $blddir);
2057             if ($unified_info{rename}->{$ddest}) {
2058                 $ddest = $unified_info{rename}->{$ddest};
2059             }
2060             die "more than one generator for $dest: "
2061                     ,join(" ", @{$generate{$_}}),"\n"
2062                     if scalar @{$generate{$_}} > 1;
2063             my @generator = split /\s+/, $generate{$dest}->[0];
2064             $generator[0] = cleanfile($sourced, $generator[0], $blddir),
2065             $unified_info{generate}->{$ddest} = [ @generator ];
2066         }
2067
2068         foreach (keys %depends) {
2069             my $dest = $_;
2070             my $ddest = $dest eq "" ? "" : cleanfile($sourced, $_, $blddir);
2071
2072             # If the destination doesn't exist in source, it can only be
2073             # a generated file in the build tree.
2074             if ($ddest ne "" && ($ddest eq $src_configdata || ! -f $ddest)) {
2075                 $ddest = cleanfile($buildd, $_, $blddir);
2076                 if ($unified_info{rename}->{$ddest}) {
2077                     $ddest = $unified_info{rename}->{$ddest};
2078                 }
2079             }
2080             foreach (@{$depends{$dest}}) {
2081                 my $d = cleanfile($sourced, $_, $blddir);
2082
2083                 # If we know it's generated, or assume it is because we can't
2084                 # find it in the source tree, we set file we depend on to be
2085                 # in the build tree rather than the source tree, and assume
2086                 # and that there are lines to build it in a BEGINRAW..ENDRAW
2087                 # section or in the Makefile template.
2088                 if ($d eq $src_configdata
2089                     || ! -f $d
2090                     || (grep { $d eq $_ }
2091                         map { cleanfile($srcdir, $_, $blddir) }
2092                         grep { /\.h$/ } keys %{$unified_info{generate}})) {
2093                     $d = cleanfile($buildd, $_, $blddir);
2094                 }
2095                 # Take note if the file to depend on is being renamed
2096                 # Take extra care with files ending with .a, they should
2097                 # be treated without that extension, and the extension
2098                 # should be added back after treatment.
2099                 $d =~ /(\.a)?$/;
2100                 my $e = $1 // "";
2101                 $d = $`;
2102                 if ($unified_info{rename}->{$d}) {
2103                     $d = $unified_info{rename}->{$d};
2104                 }
2105                 $d .= $e;
2106                 $unified_info{depends}->{$ddest}->{$d} = 1;
2107             }
2108         }
2109
2110         foreach (keys %includes) {
2111             my $dest = $_;
2112             my $ddest = cleanfile($sourced, $_, $blddir);
2113
2114             # If the destination doesn't exist in source, it can only be
2115             # a generated file in the build tree.
2116             if ($ddest eq $src_configdata || ! -f $ddest) {
2117                 $ddest = cleanfile($buildd, $_, $blddir);
2118                 if ($unified_info{rename}->{$ddest}) {
2119                     $ddest = $unified_info{rename}->{$ddest};
2120                 }
2121             }
2122             foreach (@{$includes{$dest}}) {
2123                 my $is = cleandir($sourced, $_, $blddir);
2124                 my $ib = cleandir($buildd, $_, $blddir);
2125                 push @{$unified_info{includes}->{$ddest}->{source}}, $is
2126                     unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
2127                 push @{$unified_info{includes}->{$ddest}->{build}}, $ib
2128                     unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
2129             }
2130         }
2131     }
2132
2133     my $ordinals_text = join(', ', sort keys %ordinals);
2134     warn <<"EOF" if $ordinals_text;
2135
2136 WARNING: ORDINALS were specified for $ordinals_text
2137 They are ignored and should be replaced with a combination of GENERATE,
2138 DEPEND and SHARED_SOURCE.
2139 EOF
2140
2141     # Massage the result
2142
2143     # If we depend on a header file or a perl module, add an inclusion of
2144     # its directory to allow smoothe inclusion
2145     foreach my $dest (keys %{$unified_info{depends}}) {
2146         next if $dest eq "";
2147         foreach my $d (keys %{$unified_info{depends}->{$dest}}) {
2148             next unless $d =~ /\.(h|pm)$/;
2149             my $i = dirname($d);
2150             my $spot =
2151                 $d eq "configdata.pm" || defined($unified_info{generate}->{$d})
2152                 ? 'build' : 'source';
2153             push @{$unified_info{includes}->{$dest}->{$spot}}, $i
2154                 unless grep { $_ eq $i } @{$unified_info{includes}->{$dest}->{$spot}};
2155         }
2156     }
2157
2158     # Trickle down includes placed on libraries, engines and programs to
2159     # their sources (i.e. object files)
2160     foreach my $dest (keys %{$unified_info{engines}},
2161                       keys %{$unified_info{libraries}},
2162                       keys %{$unified_info{programs}}) {
2163         foreach my $k (("source", "build")) {
2164             next unless defined($unified_info{includes}->{$dest}->{$k});
2165             my @incs = reverse @{$unified_info{includes}->{$dest}->{$k}};
2166             foreach my $obj (grep /\.o$/,
2167                              (keys %{$unified_info{sources}->{$dest}},
2168                               keys %{$unified_info{shared_sources}->{$dest}})) {
2169                 foreach my $inc (@incs) {
2170                     unshift @{$unified_info{includes}->{$obj}->{$k}}, $inc
2171                         unless grep { $_ eq $inc } @{$unified_info{includes}->{$obj}->{$k}};
2172                 }
2173             }
2174         }
2175         delete $unified_info{includes}->{$dest};
2176     }
2177
2178     ### Make unified_info a bit more efficient
2179     # One level structures
2180     foreach (("programs", "libraries", "engines", "scripts", "extra", "overrides")) {
2181         $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
2182     }
2183     # Two level structures
2184     foreach my $l1 (("install", "sources", "shared_sources", "ldadd", "depends")) {
2185         foreach my $l2 (sort keys %{$unified_info{$l1}}) {
2186             $unified_info{$l1}->{$l2} =
2187                 [ sort keys %{$unified_info{$l1}->{$l2}} ];
2188         }
2189     }
2190     # Includes
2191     foreach my $dest (sort keys %{$unified_info{includes}}) {
2192         if (defined($unified_info{includes}->{$dest}->{build})) {
2193             my @source_includes = ();
2194             @source_includes = ( @{$unified_info{includes}->{$dest}->{source}} )
2195                 if defined($unified_info{includes}->{$dest}->{source});
2196             $unified_info{includes}->{$dest} =
2197                 [ @{$unified_info{includes}->{$dest}->{build}} ];
2198             foreach my $inc (@source_includes) {
2199                 push @{$unified_info{includes}->{$dest}}, $inc
2200                     unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
2201             }
2202         } else {
2203             $unified_info{includes}->{$dest} =
2204                 [ @{$unified_info{includes}->{$dest}->{source}} ];
2205         }
2206     }
2207 }
2208
2209 # For the schemes that need it, we provide the old *_obj configs
2210 # from the *_asm_obj ones
2211 foreach (grep /_(asm|aux)_src$/, keys %target) {
2212     my $src = $_;
2213     (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
2214     $target{$obj} = $target{$src};
2215     $target{$obj} =~ s/\.[csS]\b/.o/g; # C and assembler
2216     $target{$obj} =~ s/\.(cc|cpp)\b/_cc.o/g; # C++
2217 }
2218
2219 # Write down our configuration where it fits #########################
2220
2221 print "Creating configdata.pm\n";
2222 open(OUT,">configdata.pm") || die "unable to create configdata.pm: $!\n";
2223 print OUT <<"EOF";
2224 #! $config{HASHBANGPERL}
2225
2226 package configdata;
2227
2228 use strict;
2229 use warnings;
2230
2231 use Exporter;
2232 #use vars qw(\@ISA \@EXPORT);
2233 our \@ISA = qw(Exporter);
2234 our \@EXPORT = qw(\%config \%target \%disabled \%withargs \%unified_info \@disablables);
2235
2236 EOF
2237 print OUT "our %config = (\n";
2238 foreach (sort keys %config) {
2239     if (ref($config{$_}) eq "ARRAY") {
2240         print OUT "  ", $_, " => [ ", join(", ",
2241                                            map { quotify("perl", $_) }
2242                                            @{$config{$_}}), " ],\n";
2243     } elsif (ref($config{$_}) eq "HASH") {
2244         print OUT "  ", $_, " => {";
2245         if (scalar keys %{$config{$_}} > 0) {
2246             print OUT "\n";
2247             foreach my $key (sort keys %{$config{$_}}) {
2248                 print OUT "      ",
2249                     join(" => ",
2250                          quotify("perl", $key),
2251                          defined $config{$_}->{$key}
2252                              ? quotify("perl", $config{$_}->{$key})
2253                              : "undef");
2254                 print OUT ",\n";
2255             }
2256             print OUT "  ";
2257         }
2258         print OUT "},\n";
2259     } else {
2260         print OUT "  ", $_, " => ", quotify("perl", $config{$_}), ",\n"
2261     }
2262 }
2263 print OUT <<"EOF";
2264 );
2265
2266 EOF
2267 print OUT "our %target = (\n";
2268 foreach (sort keys %target) {
2269     if (ref($target{$_}) eq "ARRAY") {
2270         print OUT "  ", $_, " => [ ", join(", ",
2271                                            map { quotify("perl", $_) }
2272                                            @{$target{$_}}), " ],\n";
2273     } else {
2274         print OUT "  ", $_, " => ", quotify("perl", $target{$_}), ",\n"
2275     }
2276 }
2277 print OUT <<"EOF";
2278 );
2279
2280 EOF
2281 print OUT "our \%available_protocols = (\n";
2282 print OUT "  tls => [ ", join(", ", map { quotify("perl", $_) } @tls), " ],\n";
2283 print OUT "  dtls => [ ", join(", ", map { quotify("perl", $_) } @dtls), " ],\n";
2284 print OUT <<"EOF";
2285 );
2286
2287 EOF
2288 print OUT "our \@disablables = (\n";
2289 foreach (@disablables) {
2290     print OUT "  ", quotify("perl", $_), ",\n";
2291 }
2292 print OUT <<"EOF";
2293 );
2294
2295 EOF
2296 print OUT "our \%disabled = (\n";
2297 foreach (sort keys %disabled) {
2298     print OUT "  ", quotify("perl", $_), " => ", quotify("perl", $disabled{$_}), ",\n";
2299 }
2300 print OUT <<"EOF";
2301 );
2302
2303 EOF
2304 print OUT "our %withargs = (\n";
2305 foreach (sort keys %withargs) {
2306     if (ref($withargs{$_}) eq "ARRAY") {
2307         print OUT "  ", $_, " => [ ", join(", ",
2308                                            map { quotify("perl", $_) }
2309                                            @{$withargs{$_}}), " ],\n";
2310     } else {
2311         print OUT "  ", $_, " => ", quotify("perl", $withargs{$_}), ",\n"
2312     }
2313 }
2314 print OUT <<"EOF";
2315 );
2316
2317 EOF
2318 if ($builder eq "unified") {
2319     my $recurse;
2320     $recurse = sub {
2321         my $indent = shift;
2322         foreach (@_) {
2323             if (ref $_ eq "ARRAY") {
2324                 print OUT " "x$indent, "[\n";
2325                 foreach (@$_) {
2326                     $recurse->($indent + 4, $_);
2327                 }
2328                 print OUT " "x$indent, "],\n";
2329             } elsif (ref $_ eq "HASH") {
2330                 my %h = %$_;
2331                 print OUT " "x$indent, "{\n";
2332                 foreach (sort keys %h) {
2333                     if (ref $h{$_} eq "") {
2334                         print OUT " "x($indent + 4), quotify("perl", $_), " => ", quotify("perl", $h{$_}), ",\n";
2335                     } else {
2336                         print OUT " "x($indent + 4), quotify("perl", $_), " =>\n";
2337                         $recurse->($indent + 8, $h{$_});
2338                     }
2339                 }
2340                 print OUT " "x$indent, "},\n";
2341             } else {
2342                 print OUT " "x$indent, quotify("perl", $_), ",\n";
2343             }
2344         }
2345     };
2346     print OUT "our %unified_info = (\n";
2347     foreach (sort keys %unified_info) {
2348         if (ref $unified_info{$_} eq "") {
2349             print OUT " "x4, quotify("perl", $_), " => ", quotify("perl", $unified_info{$_}), ",\n";
2350         } else {
2351             print OUT " "x4, quotify("perl", $_), " =>\n";
2352             $recurse->(8, $unified_info{$_});
2353         }
2354     }
2355     print OUT <<"EOF";
2356 );
2357
2358 EOF
2359 }
2360 print OUT
2361     "# The following data is only used when this files is use as a script\n";
2362 print OUT "my \@makevars = (\n";
2363 foreach (sort keys %user) {
2364     print OUT "    '",$_,"',\n";
2365 }
2366 print OUT ");\n";
2367 print OUT "my \%disabled_info = (\n";
2368 foreach my $what (sort keys %disabled_info) {
2369     print OUT "    '$what' => {\n";
2370     foreach my $info (sort keys %{$disabled_info{$what}}) {
2371         if (ref $disabled_info{$what}->{$info} eq 'ARRAY') {
2372             print OUT "        $info => [ ",
2373                 join(', ', map { "'$_'" } @{$disabled_info{$what}->{$info}}),
2374                 " ],\n";
2375         } else {
2376             print OUT "        $info => '", $disabled_info{$what}->{$info},
2377                 "',\n";
2378         }
2379     }
2380     print OUT "    },\n";
2381 }
2382 print OUT ");\n";
2383 print OUT 'my @user_crossable = qw( ', join (' ', @user_crossable), " );\n";
2384 print OUT << 'EOF';
2385 # If run directly, we can give some answers, and even reconfigure
2386 unless (caller) {
2387     use Getopt::Long;
2388     use File::Spec::Functions;
2389     use File::Basename;
2390     use Pod::Usage;
2391
2392     my $here = dirname($0);
2393
2394     my $dump = undef;
2395     my $cmdline = undef;
2396     my $options = undef;
2397     my $target = undef;
2398     my $envvars = undef;
2399     my $makevars = undef;
2400     my $buildparams = undef;
2401     my $reconf = undef;
2402     my $verbose = undef;
2403     my $help = undef;
2404     my $man = undef;
2405     GetOptions('dump|d'                 => \$dump,
2406                'command-line|c'         => \$cmdline,
2407                'options|o'              => \$options,
2408                'target|t'               => \$target,
2409                'environment|e'          => \$envvars,
2410                'make-variables|m'       => \$makevars,
2411                'build-parameters|b'     => \$buildparams,
2412                'reconfigure|reconf|r'   => \$reconf,
2413                'verbose|v'              => \$verbose,
2414                'help'                   => \$help,
2415                'man'                    => \$man)
2416         or die "Errors in command line arguments\n";
2417
2418     unless ($dump || $cmdline || $options || $target || $envvars || $makevars
2419             || $buildparams || $reconf || $verbose || $help || $man) {
2420         print STDERR <<"_____";
2421 You must give at least one option.
2422 For more information, do '$0 --help'
2423 _____
2424         exit(2);
2425     }
2426
2427     if ($help) {
2428         pod2usage(-exitval => 0,
2429                   -verbose => 1);
2430     }
2431     if ($man) {
2432         pod2usage(-exitval => 0,
2433                   -verbose => 2);
2434     }
2435     if ($dump || $cmdline) {
2436         print "\nCommand line (with current working directory = $here):\n\n";
2437         print '    ',join(' ',
2438                           $config{perl},
2439                           catfile($config{sourcedir}, 'Configure'),
2440                           @{$config{perlargv}}), "\n";
2441         print "\nPerl information:\n\n";
2442         print '    ',$config{perl_cmd},"\n";
2443         print '    ',$config{perl_version},' for ',$config{perl_archname},"\n";
2444     }
2445     if ($dump || $options) {
2446         my $longest = 0;
2447         my $longest2 = 0;
2448         foreach my $what (@disablables) {
2449             $longest = length($what) if $longest < length($what);
2450             $longest2 = length($disabled{$what})
2451                 if $disabled{$what} && $longest2 < length($disabled{$what});
2452         }
2453         print "\nEnabled features:\n\n";
2454         foreach my $what (@disablables) {
2455             print "    $what\n" unless $disabled{$what};
2456         }
2457         print "\nDisabled features:\n\n";
2458         foreach my $what (@disablables) {
2459             if ($disabled{$what}) {
2460                 print "    $what", ' ' x ($longest - length($what) + 1),
2461                     "[$disabled{$what}]", ' ' x ($longest2 - length($disabled{$what}) + 1);
2462                 print $disabled_info{$what}->{macro}
2463                     if $disabled_info{$what}->{macro};
2464                 print ' (skip ',
2465                     join(', ', @{$disabled_info{$what}->{skipped}}),
2466                     ')'
2467                     if $disabled_info{$what}->{skipped};
2468                 print "\n";
2469             }
2470         }
2471     }
2472     if ($dump || $target) {
2473         print "\nConfig target attributes:\n\n";
2474         foreach (sort keys %target) {
2475             next if $_ =~ m|^_| || $_ eq 'template';
2476             my $quotify = sub {
2477                 map { (my $x = $_) =~ s|([\\\$\@"])|\\$1|g; "\"$x\""} @_;
2478             };
2479             print '    ', $_, ' => ';
2480             if (ref($target{$_}) eq "ARRAY") {
2481                 print '[ ', join(', ', $quotify->(@{$target{$_}})), " ],\n";
2482             } else {
2483                 print $quotify->($target{$_}), ",\n"
2484             }
2485         }
2486     }
2487     if ($dump || $envvars) {
2488         print "\nRecorded environment:\n\n";
2489         foreach (sort keys %{$config{perlenv}}) {
2490             print '    ',$_,' = ',($config{perlenv}->{$_} || ''),"\n";
2491         }
2492     }
2493     if ($dump || $makevars) {
2494         print "\nMakevars:\n\n";
2495         foreach my $var (@makevars) {
2496             my $prefix = '';
2497             $prefix = $config{CROSS_COMPILE}
2498                 if grep { $var eq $_ } @user_crossable;
2499             $prefix //= '';
2500             print '    ',$var,' ' x (16 - length $var),'= ',
2501                 (ref $config{$var} eq 'ARRAY'
2502                  ? join(' ', @{$config{$var}})
2503                  : $prefix.$config{$var}),
2504                 "\n"
2505                 if defined $config{$var};
2506         }
2507
2508         my @buildfile = ($config{builddir}, $config{build_file});
2509         unshift @buildfile, $here
2510             unless file_name_is_absolute($config{builddir});
2511         my $buildfile = canonpath(catdir(@buildfile));
2512         print <<"_____";
2513
2514 NOTE: These variables only represent the configuration view.  The build file
2515 template may have processed these variables further, please have a look at the
2516 build file for more exact data:
2517     $buildfile
2518 _____
2519     }
2520     if ($dump || $buildparams) {
2521         my @buildfile = ($config{builddir}, $config{build_file});
2522         unshift @buildfile, $here
2523             unless file_name_is_absolute($config{builddir});
2524         print "\nbuild file:\n\n";
2525         print "    ", canonpath(catfile(@buildfile)),"\n";
2526
2527         print "\nbuild file templates:\n\n";
2528         foreach (@{$config{build_file_templates}}) {
2529             my @tmpl = ($_);
2530             unshift @tmpl, $here
2531                 unless file_name_is_absolute($config{sourcedir});
2532             print '    ',canonpath(catfile(@tmpl)),"\n";
2533         }
2534     }
2535     if ($reconf) {
2536         if ($verbose) {
2537             print 'Reconfiguring with: ', join(' ',@{$config{perlargv}}), "\n";
2538             foreach (sort keys %{$config{perlenv}}) {
2539                 print '    ',$_,' = ',($config{perlenv}->{$_} || ""),"\n";
2540             }
2541         }
2542
2543         chdir $here;
2544         exec $^X,catfile($config{sourcedir}, 'Configure'),'reconf';
2545     }
2546 }
2547
2548 1;
2549
2550 __END__
2551
2552 =head1 NAME
2553
2554 configdata.pm - configuration data for OpenSSL builds
2555
2556 =head1 SYNOPSIS
2557
2558 Interactive:
2559
2560   perl configdata.pm [options]
2561
2562 As data bank module:
2563
2564   use configdata;
2565
2566 =head1 DESCRIPTION
2567
2568 This module can be used in two modes, interactively and as a module containing
2569 all the data recorded by OpenSSL's Configure script.
2570
2571 When used interactively, simply run it as any perl script, with at least one
2572 option, and you will get the information you ask for.  See L</OPTIONS> below.
2573
2574 When loaded as a module, you get a few databanks with useful information to
2575 perform build related tasks.  The databanks are:
2576
2577     %config             Configured things.
2578     %target             The OpenSSL config target with all inheritances
2579                         resolved.
2580     %disabled           The features that are disabled.
2581     @disablables        The list of features that can be disabled.
2582     %withargs           All data given through --with-THING options.
2583     %unified_info       All information that was computed from the build.info
2584                         files.
2585
2586 =head1 OPTIONS
2587
2588 =over 4
2589
2590 =item B<--help>
2591
2592 Print a brief help message and exit.
2593
2594 =item B<--man>
2595
2596 Print the manual page and exit.
2597
2598 =item B<--dump> | B<-d>
2599
2600 Print all relevant configuration data.  This is equivalent to B<--command-line>
2601 B<--options> B<--target> B<--environment> B<--make-variables>
2602 B<--build-parameters>.
2603
2604 =item B<--command-line> | B<-c>
2605
2606 Print the current configuration command line.
2607
2608 =item B<--options> | B<-o>
2609
2610 Print the features, both enabled and disabled, and display defined macro and
2611 skipped directories where applicable.
2612
2613 =item B<--target> | B<-t>
2614
2615 Print the config attributes for this config target.
2616
2617 =item B<--environment> | B<-e>
2618
2619 Print the environment variables and their values at the time of configuration.
2620
2621 =item B<--make-variables> | B<-m>
2622
2623 Print the main make variables generated in the current configuration
2624
2625 =item B<--build-parameters> | B<-b>
2626
2627 Print the build parameters, i.e. build file and build file templates.
2628
2629 =item B<--reconfigure> | B<--reconf> | B<-r>
2630
2631 Redo the configuration.
2632
2633 =item B<--verbose> | B<-v>
2634
2635 Verbose output.
2636
2637 =back
2638
2639 =cut
2640
2641 EOF
2642 close(OUT);
2643 if ($builder_platform eq 'unix') {
2644     my $mode = (0755 & ~umask);
2645     chmod $mode, 'configdata.pm'
2646         or warn sprintf("WARNING: Couldn't change mode for 'configdata.pm' to 0%03o: %s\n",$mode,$!);
2647 }
2648
2649 my %builders = (
2650     unified => sub {
2651         print 'Creating ',$target{build_file},"\n";
2652         run_dofile(catfile($blddir, $target{build_file}),
2653                    @{$config{build_file_templates}});
2654     },
2655     );
2656
2657 $builders{$builder}->($builder_platform, @builder_opts);
2658
2659 print <<"EOF" if ($disabled{threads} eq "unavailable");
2660
2661 The library could not be configured for supporting multi-threaded
2662 applications as the compiler options required on this system are not known.
2663 See file INSTALL for details if you need multi-threading.
2664 EOF
2665
2666 print <<"EOF" if ($no_shared_warn);
2667
2668 The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
2669 platform, so we will pretend you gave the option 'no-pic', which also disables
2670 'shared' and 'dynamic-engine'.  If you know how to implement shared libraries
2671 or position independent code, please let us know (but please first make sure
2672 you have tried with a current version of OpenSSL).
2673 EOF
2674
2675 print <<"EOF";
2676
2677 **********************************************************************
2678 ***                                                                ***
2679 ***   If you want to report a building issue, please include the   ***
2680 ***   output from this command:                                    ***
2681 ***                                                                ***
2682 ***     perl configdata.pm --dump                                  ***
2683 ***                                                                ***
2684 **********************************************************************
2685 EOF
2686
2687 exit(0);
2688
2689 ######################################################################
2690 #
2691 # Helpers and utility functions
2692 #
2693
2694 # Configuration file reading #########################################
2695
2696 # Note: All of the helper functions are for lazy evaluation.  They all
2697 # return a CODE ref, which will return the intended value when evaluated.
2698 # Thus, whenever there's mention of a returned value, it's about that
2699 # intended value.
2700
2701 # Helper function to implement conditional inheritance depending on the
2702 # value of $disabled{asm}.  Used in inherit_from values as follows:
2703 #
2704 #      inherit_from => [ "template", asm("asm_tmpl") ]
2705 #
2706 sub asm {
2707     my @x = @_;
2708     sub {
2709         $disabled{asm} ? () : @x;
2710     }
2711 }
2712
2713 # Helper function to implement conditional value variants, with a default
2714 # plus additional values based on the value of $config{build_type}.
2715 # Arguments are given in hash table form:
2716 #
2717 #       picker(default => "Basic string: ",
2718 #              debug   => "debug",
2719 #              release => "release")
2720 #
2721 # When configuring with --debug, the resulting string will be
2722 # "Basic string: debug", and when not, it will be "Basic string: release"
2723 #
2724 # This can be used to create variants of sets of flags according to the
2725 # build type:
2726 #
2727 #       cflags => picker(default => "-Wall",
2728 #                        debug   => "-g -O0",
2729 #                        release => "-O3")
2730 #
2731 sub picker {
2732     my %opts = @_;
2733     return sub { add($opts{default} || (),
2734                      $opts{$config{build_type}} || ())->(); }
2735 }
2736
2737 # Helper function to combine several values of different types into one.
2738 # This is useful if you want to combine a string with the result of a
2739 # lazy function, such as:
2740 #
2741 #       cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
2742 #
2743 sub combine {
2744     my @stuff = @_;
2745     return sub { add(@stuff)->(); }
2746 }
2747
2748 # Helper function to implement conditional values depending on the value
2749 # of $disabled{threads}.  Can be used as follows:
2750 #
2751 #       cflags => combine("-Wall", threads("-pthread"))
2752 #
2753 sub threads {
2754     my @flags = @_;
2755     return sub { add($disabled{threads} ? () : @flags)->(); }
2756 }
2757
2758
2759
2760 our $add_called = 0;
2761 # Helper function to implement adding values to already existing configuration
2762 # values.  It handles elements that are ARRAYs, CODEs and scalars
2763 sub _add {
2764     my $separator = shift;
2765
2766     # If there's any ARRAY in the collection of values OR the separator
2767     # is undef, we will return an ARRAY of combined values, otherwise a
2768     # string of joined values with $separator as the separator.
2769     my $found_array = !defined($separator);
2770
2771     my @values =
2772         map {
2773             my $res = $_;
2774             while (ref($res) eq "CODE") {
2775                 $res = $res->();
2776             }
2777             if (defined($res)) {
2778                 if (ref($res) eq "ARRAY") {
2779                     $found_array = 1;
2780                     @$res;
2781                 } else {
2782                     $res;
2783                 }
2784             } else {
2785                 ();
2786             }
2787     } (@_);
2788
2789     $add_called = 1;
2790
2791     if ($found_array) {
2792         [ @values ];
2793     } else {
2794         join($separator, grep { defined($_) && $_ ne "" } @values);
2795     }
2796 }
2797 sub add_before {
2798     my $separator = " ";
2799     if (ref($_[$#_]) eq "HASH") {
2800         my $opts = pop;
2801         $separator = $opts->{separator};
2802     }
2803     my @x = @_;
2804     sub { _add($separator, @x, @_) };
2805 }
2806 sub add {
2807     my $separator = " ";
2808     if (ref($_[$#_]) eq "HASH") {
2809         my $opts = pop;
2810         $separator = $opts->{separator};
2811     }
2812     my @x = @_;
2813     sub { _add($separator, @_, @x) };
2814 }
2815
2816 sub read_eval_file {
2817     my $fname = shift;
2818     my $content;
2819     my @result;
2820
2821     open F, "< $fname" or die "Can't open '$fname': $!\n";
2822     {
2823         undef local $/;
2824         $content = <F>;
2825     }
2826     close F;
2827     {
2828         local $@;
2829
2830         @result = ( eval $content );
2831         warn $@ if $@;
2832     }
2833     return wantarray ? @result : $result[0];
2834 }
2835
2836 # configuration reader, evaluates the input file as a perl script and expects
2837 # it to fill %targets with target configurations.  Those are then added to
2838 # %table.
2839 sub read_config {
2840     my $fname = shift;
2841     my %targets;
2842
2843     {
2844         # Protect certain tables from tampering
2845         local %table = ();
2846
2847         %targets = read_eval_file($fname);
2848     }
2849     my %preexisting = ();
2850     foreach (sort keys %targets) {
2851         $preexisting{$_} = 1 if $table{$_};
2852     }
2853     die <<"EOF",
2854 The following config targets from $fname
2855 shadow pre-existing config targets with the same name:
2856 EOF
2857         map { "  $_\n" } sort keys %preexisting
2858         if %preexisting;
2859
2860
2861     # For each target, check that it's configured with a hash table.
2862     foreach (keys %targets) {
2863         if (ref($targets{$_}) ne "HASH") {
2864             if (ref($targets{$_}) eq "") {
2865                 warn "Deprecated target configuration for $_, ignoring...\n";
2866             } else {
2867                 warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
2868             }
2869             delete $targets{$_};
2870         } else {
2871             $targets{$_}->{_conf_fname_int} = add([ $fname ]);
2872         }
2873     }
2874
2875     %table = (%table, %targets);
2876
2877 }
2878
2879 # configuration resolver.  Will only resolve all the lazy evaluation
2880 # codeblocks for the chosen target and all those it inherits from,
2881 # recursively
2882 sub resolve_config {
2883     my $target = shift;
2884     my @breadcrumbs = @_;
2885
2886 #    my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
2887
2888     if (grep { $_ eq $target } @breadcrumbs) {
2889         die "inherit_from loop!  target backtrace:\n  "
2890             ,$target,"\n  ",join("\n  ", @breadcrumbs),"\n";
2891     }
2892
2893     if (!defined($table{$target})) {
2894         warn "Warning! target $target doesn't exist!\n";
2895         return ();
2896     }
2897     # Recurse through all inheritances.  They will be resolved on the
2898     # fly, so when this operation is done, they will all just be a
2899     # bunch of attributes with string values.
2900     # What we get here, though, are keys with references to lists of
2901     # the combined values of them all.  We will deal with lists after
2902     # this stage is done.
2903     my %combined_inheritance = ();
2904     if ($table{$target}->{inherit_from}) {
2905         my @inherit_from =
2906             map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
2907         foreach (@inherit_from) {
2908             my %inherited_config = resolve_config($_, $target, @breadcrumbs);
2909
2910             # 'template' is a marker that's considered private to
2911             # the config that had it.
2912             delete $inherited_config{template};
2913
2914             foreach (keys %inherited_config) {
2915                 if (!$combined_inheritance{$_}) {
2916                     $combined_inheritance{$_} = [];
2917                 }
2918                 push @{$combined_inheritance{$_}}, $inherited_config{$_};
2919             }
2920         }
2921     }
2922
2923     # We won't need inherit_from in this target any more, since we've
2924     # resolved all the inheritances that lead to this
2925     delete $table{$target}->{inherit_from};
2926
2927     # Now is the time to deal with those lists.  Here's the place to
2928     # decide what shall be done with those lists, all based on the
2929     # values of the target we're currently dealing with.
2930     # - If a value is a coderef, it will be executed with the list of
2931     #   inherited values as arguments.
2932     # - If the corresponding key doesn't have a value at all or is the
2933     #   empty string, the inherited value list will be run through the
2934     #   default combiner (below), and the result becomes this target's
2935     #   value.
2936     # - Otherwise, this target's value is assumed to be a string that
2937     #   will simply override the inherited list of values.
2938     my $default_combiner = add();
2939
2940     my %all_keys =
2941         map { $_ => 1 } (keys %combined_inheritance,
2942                          keys %{$table{$target}});
2943
2944     sub process_values {
2945         my $object    = shift;
2946         my $inherited = shift;  # Always a [ list ]
2947         my $target    = shift;
2948         my $entry     = shift;
2949
2950         $add_called = 0;
2951
2952         while(ref($object) eq "CODE") {
2953             $object = $object->(@$inherited);
2954         }
2955         if (!defined($object)) {
2956             return ();
2957         }
2958         elsif (ref($object) eq "ARRAY") {
2959             local $add_called;  # To make sure recursive calls don't affect it
2960             return [ map { process_values($_, $inherited, $target, $entry) }
2961                      @$object ];
2962         } elsif (ref($object) eq "") {
2963             return $object;
2964         } else {
2965             die "cannot handle reference type ",ref($object)
2966                 ," found in target ",$target," -> ",$entry,"\n";
2967         }
2968     }
2969
2970     foreach (sort keys %all_keys) {
2971         my $previous = $combined_inheritance{$_};
2972
2973         # Current target doesn't have a value for the current key?
2974         # Assign it the default combiner, the rest of this loop body
2975         # will handle it just like any other coderef.
2976         if (!exists $table{$target}->{$_}) {
2977             $table{$target}->{$_} = $default_combiner;
2978         }
2979
2980         $table{$target}->{$_} = process_values($table{$target}->{$_},
2981                                                $combined_inheritance{$_},
2982                                                $target, $_);
2983         unless(defined($table{$target}->{$_})) {
2984             delete $table{$target}->{$_};
2985         }
2986 #        if ($extra_checks &&
2987 #            $previous && !($add_called ||  $previous ~~ $table{$target}->{$_})) {
2988 #            warn "$_ got replaced in $target\n";
2989 #        }
2990     }
2991
2992     # Finally done, return the result.
2993     return %{$table{$target}};
2994 }
2995
2996 sub usage
2997         {
2998         print STDERR $usage;
2999         print STDERR "\npick os/compiler from:\n";
3000         my $j=0;
3001         my $i;
3002         my $k=0;
3003         foreach $i (sort keys %table)
3004                 {
3005                 next if $table{$i}->{template};
3006                 next if $i =~ /^debug/;
3007                 $k += length($i) + 1;
3008                 if ($k > 78)
3009                         {
3010                         print STDERR "\n";
3011                         $k=length($i);
3012                         }
3013                 print STDERR $i . " ";
3014                 }
3015         foreach $i (sort keys %table)
3016                 {
3017                 next if $table{$i}->{template};
3018                 next if $i !~ /^debug/;
3019                 $k += length($i) + 1;
3020                 if ($k > 78)
3021                         {
3022                         print STDERR "\n";
3023                         $k=length($i);
3024                         }
3025                 print STDERR $i . " ";
3026                 }
3027         print STDERR "\n\nNOTE: If in doubt, on Unix-ish systems use './config'.\n";
3028         exit(1);
3029         }
3030
3031 sub run_dofile
3032 {
3033     my $out = shift;
3034     my @templates = @_;
3035
3036     unlink $out || warn "Can't remove $out, $!"
3037         if -f $out;
3038     foreach (@templates) {
3039         die "Can't open $_, $!" unless -f $_;
3040     }
3041     my $perlcmd = (quotify("maybeshell", $config{perl}))[0];
3042     my $cmd = "$perlcmd \"-I.\" \"-Mconfigdata\" \"$dofile\" -o\"Configure\" \"".join("\" \"",@templates)."\" > \"$out.new\"";
3043     #print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
3044     system($cmd);
3045     exit 1 if $? != 0;
3046     rename("$out.new", $out) || die "Can't rename $out.new, $!";
3047 }
3048
3049 sub compiler_predefined {
3050     state %predefined;
3051     my $default_compiler = shift;
3052
3053     return () if $^O eq 'VMS';
3054
3055     die 'compiler_predefined called without a default compiler'
3056         unless $default_compiler;
3057
3058     if (! $predefined{$default_compiler}) {
3059         my $cc = "$config{CROSS_COMPILE}$default_compiler";
3060
3061         $predefined{$default_compiler} = {};
3062
3063         # collect compiler pre-defines from gcc or gcc-alike...
3064         open(PIPE, "$cc -dM -E -x c /dev/null 2>&1 |");
3065         while (my $l = <PIPE>) {
3066             $l =~ m/^#define\s+(\w+(?:\(\w+\))?)(?:\s+(.+))?/ or last;
3067             $predefined{$default_compiler}->{$1} = $2 // '';
3068         }
3069         close(PIPE);
3070     }
3071
3072     return %{$predefined{$default_compiler}};
3073 }
3074
3075 sub which
3076 {
3077     my ($name)=@_;
3078
3079     if (eval { require IPC::Cmd; 1; }) {
3080         IPC::Cmd->import();
3081         return scalar IPC::Cmd::can_run($name);
3082     } else {
3083         # if there is $directories component in splitpath,
3084         # then it's not something to test with $PATH...
3085         return $name if (File::Spec->splitpath($name))[1];
3086
3087         foreach (File::Spec->path()) {
3088             my $fullpath = catfile($_, "$name$target{exe_extension}");
3089             if (-f $fullpath and -x $fullpath) {
3090                 return $fullpath;
3091             }
3092         }
3093     }
3094 }
3095
3096 sub env
3097 {
3098     my $name = shift;
3099     my %opts = @_;
3100
3101     unless ($opts{cacheonly}) {
3102         # Note that if $ENV{$name} doesn't exist or is undefined,
3103         # $config{perlenv}->{$name} will be created with the value
3104         # undef.  This is intentional.
3105
3106         $config{perlenv}->{$name} = $ENV{$name}
3107             if ! exists $config{perlenv}->{$name};
3108     }
3109     return $config{perlenv}->{$name};
3110 }
3111
3112 # Configuration printer ##############################################
3113
3114 sub print_table_entry
3115 {
3116     local $now_printing = shift;
3117     my %target = resolve_config($now_printing);
3118     my $type = shift;
3119
3120     # Don't print the templates
3121     return if $target{template};
3122
3123     my @sequence = (
3124         "sys_id",
3125         "cpp",
3126         "cppflags",
3127         "defines",
3128         "includes",
3129         "cc",
3130         "cflags",
3131         "unistd",
3132         "ld",
3133         "lflags",
3134         "loutflag",
3135         "ex_libs",
3136         "bn_ops",
3137         "apps_aux_src",
3138         "cpuid_asm_src",
3139         "uplink_aux_src",
3140         "bn_asm_src",
3141         "ec_asm_src",
3142         "des_asm_src",
3143         "aes_asm_src",
3144         "bf_asm_src",
3145         "md5_asm_src",
3146         "cast_asm_src",
3147         "sha1_asm_src",
3148         "rc4_asm_src",
3149         "rmd160_asm_src",
3150         "rc5_asm_src",
3151         "wp_asm_src",
3152         "cmll_asm_src",
3153         "modes_asm_src",
3154         "padlock_asm_src",
3155         "chacha_asm_src",
3156         "poly1035_asm_src",
3157         "thread_scheme",
3158         "perlasm_scheme",
3159         "dso_scheme",
3160         "shared_target",
3161         "shared_cflag",
3162         "shared_defines",
3163         "shared_ldflag",
3164         "shared_rcflag",
3165         "shared_extension",
3166         "dso_extension",
3167         "obj_extension",
3168         "exe_extension",
3169         "ranlib",
3170         "ar",
3171         "arflags",
3172         "aroutflag",
3173         "rc",
3174         "rcflags",
3175         "rcoutflag",
3176         "mt",
3177         "mtflags",
3178         "mtinflag",
3179         "mtoutflag",
3180         "multilib",
3181         "build_scheme",
3182         );
3183
3184     if ($type eq "TABLE") {
3185         print "\n";
3186         print "*** $now_printing\n";
3187         foreach (@sequence) {
3188             if (ref($target{$_}) eq "ARRAY") {
3189                 printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
3190             } else {
3191                 printf "\$%-12s = %s\n", $_, $target{$_};
3192             }
3193         }
3194     } elsif ($type eq "HASH") {
3195         my $largest =
3196             length((sort { length($a) <=> length($b) } @sequence)[-1]);
3197         print "    '$now_printing' => {\n";
3198         foreach (@sequence) {
3199             if ($target{$_}) {
3200                 if (ref($target{$_}) eq "ARRAY") {
3201                     print "      '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
3202                 } else {
3203                     print "      '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
3204                 }
3205             }
3206         }
3207         print "    },\n";
3208     }
3209 }
3210
3211 # Utility routines ###################################################
3212
3213 # On VMS, if the given file is a logical name, File::Spec::Functions
3214 # will consider it an absolute path.  There are cases when we want a
3215 # purely syntactic check without checking the environment.
3216 sub isabsolute {
3217     my $file = shift;
3218
3219     # On non-platforms, we just use file_name_is_absolute().
3220     return file_name_is_absolute($file) unless $^O eq "VMS";
3221
3222     # If the file spec includes a device or a directory spec,
3223     # file_name_is_absolute() is perfectly safe.
3224     return file_name_is_absolute($file) if $file =~ m|[:\[]|;
3225
3226     # Here, we know the given file spec isn't absolute
3227     return 0;
3228 }
3229
3230 # Makes a directory absolute and cleans out /../ in paths like foo/../bar
3231 # On some platforms, this uses rel2abs(), while on others, realpath() is used.
3232 # realpath() requires that at least all path components except the last is an
3233 # existing directory.  On VMS, the last component of the directory spec must
3234 # exist.
3235 sub absolutedir {
3236     my $dir = shift;
3237
3238     # realpath() is quite buggy on VMS.  It uses LIB$FID_TO_NAME, which
3239     # will return the volume name for the device, no matter what.  Also,
3240     # it will return an incorrect directory spec if the argument is a
3241     # directory that doesn't exist.
3242     if ($^O eq "VMS") {
3243         return rel2abs($dir);
3244     }
3245
3246     # We use realpath() on Unix, since no other will properly clean out
3247     # a directory spec.
3248     use Cwd qw/realpath/;
3249
3250     return realpath($dir);
3251 }
3252
3253 sub quotify {
3254     my %processors = (
3255         perl    => sub { my $x = shift;
3256                          $x =~ s/([\\\$\@"])/\\$1/g;
3257                          return '"'.$x.'"'; },
3258         maybeshell => sub { my $x = shift;
3259                             (my $y = $x) =~ s/([\\\"])/\\$1/g;
3260                             if ($x ne $y || $x =~ m|\s|) {
3261                                 return '"'.$y.'"';
3262                             } else {
3263                                 return $x;
3264                             }
3265                         },
3266         );
3267     my $for = shift;
3268     my $processor =
3269         defined($processors{$for}) ? $processors{$for} : sub { shift; };
3270
3271     return map { $processor->($_); } @_;
3272 }
3273
3274 # collect_from_file($filename, $line_concat_cond_re, $line_concat)
3275 # $filename is a file name to read from
3276 # $line_concat_cond_re is a regexp detecting a line continuation ending
3277 # $line_concat is a CODEref that takes care of concatenating two lines
3278 sub collect_from_file {
3279     my $filename = shift;
3280     my $line_concat_cond_re = shift;
3281     my $line_concat = shift;
3282
3283     open my $fh, $filename || die "unable to read $filename: $!\n";
3284     return sub {
3285         my $saved_line = "";
3286         $_ = "";
3287         while (<$fh>) {
3288             s|\R$||;
3289             if (defined $line_concat) {
3290                 $_ = $line_concat->($saved_line, $_);
3291                 $saved_line = "";
3292             }
3293             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3294                 $saved_line = $_;
3295                 next;
3296             }
3297             return $_;
3298         }
3299         die "$filename ending with continuation line\n" if $_;
3300         close $fh;
3301         return undef;
3302     }
3303 }
3304
3305 # collect_from_array($array, $line_concat_cond_re, $line_concat)
3306 # $array is an ARRAYref of lines
3307 # $line_concat_cond_re is a regexp detecting a line continuation ending
3308 # $line_concat is a CODEref that takes care of concatenating two lines
3309 sub collect_from_array {
3310     my $array = shift;
3311     my $line_concat_cond_re = shift;
3312     my $line_concat = shift;
3313     my @array = (@$array);
3314
3315     return sub {
3316         my $saved_line = "";
3317         $_ = "";
3318         while (defined($_ = shift @array)) {
3319             s|\R$||;
3320             if (defined $line_concat) {
3321                 $_ = $line_concat->($saved_line, $_);
3322                 $saved_line = "";
3323             }
3324             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3325                 $saved_line = $_;
3326                 next;
3327             }
3328             return $_;
3329         }
3330         die "input text ending with continuation line\n" if $_;
3331         return undef;
3332     }
3333 }
3334
3335 # collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
3336 # $lineiterator is a CODEref that delivers one line at a time.
3337 # All following arguments are regex/CODEref pairs, where the regexp detects a
3338 # line and the CODEref does something with the result of the regexp.
3339 sub collect_information {
3340     my $lineiterator = shift;
3341     my %collectors = @_;
3342
3343     while(defined($_ = $lineiterator->())) {
3344         s|\R$||;
3345         my $found = 0;
3346         if ($collectors{"BEFORE"}) {
3347             $collectors{"BEFORE"}->($_);
3348         }
3349         foreach my $re (keys %collectors) {
3350             if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
3351                 $collectors{$re}->($lineiterator);
3352                 $found = 1;
3353             };
3354         }
3355         if ($collectors{"OTHERWISE"}) {
3356             $collectors{"OTHERWISE"}->($lineiterator, $_)
3357                 unless $found || !defined $collectors{"OTHERWISE"};
3358         }
3359         if ($collectors{"AFTER"}) {
3360             $collectors{"AFTER"}->($_);
3361         }
3362     }
3363 }
3364
3365 # tokenize($line)
3366 # $line is a line of text to split up into tokens
3367 # returns a list of tokens
3368 #
3369 # Tokens are divided by spaces.  If the tokens include spaces, they
3370 # have to be quoted with single or double quotes.  Double quotes
3371 # inside a double quoted token must be escaped.  Escaping is done
3372 # with backslash.
3373 # Basically, the same quoting rules apply for " and ' as in any
3374 # Unix shell.
3375 sub tokenize {
3376     my $line = my $debug_line = shift;
3377     my @result = ();
3378
3379     while ($line =~ s|^\s+||, $line ne "") {
3380         my $token = "";
3381         while ($line ne "" && $line !~ m|^\s|) {
3382             if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
3383                 $token .= $1;
3384                 $line = $';
3385             } elsif ($line =~ m/^'([^']*)'/) {
3386                 $token .= $1;
3387                 $line = $';
3388             } elsif ($line =~ m/^(\S+)/) {
3389                 $token .= $1;
3390                 $line = $';
3391             }
3392         }
3393         push @result, $token;
3394     }
3395
3396     if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
3397         print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
3398         print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
3399     }
3400     return @result;
3401 }