Configure

   1 #! /usr/bin/env perl
   2 # -*- mode: perl; -*-
   3 # Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
   4 #
   5 # Licensed under the OpenSSL license (the "License").  You may not use
   6 # this file except in compliance with the License.  You can obtain a copy
   7 # in the file LICENSE in the source distribution or at
   8 # https://www.openssl.org/source/license.html
   9
  10 ##  Configure -- OpenSSL source tree configuration script
  11
  12 use 5.10.0;
  13 use strict;
  14 use Config;
  15 use FindBin;
  16 use lib "$FindBin::Bin/util/perl";
  17 use File::Basename;
  18 use File::Spec::Functions qw/:DEFAULT abs2rel rel2abs/;
  19 use File::Path qw/mkpath/;
  20 use OpenSSL::Glob;
  21
  22 # see INSTALL for instructions.
  23
  24 my $usage="Usage: Configure [no-<cipher> ...] [enable-<cipher> ...] [-Dxxx] [-lxxx] [-Lxxx] [-fxxx] [-Kxxx] [no-hw-xxx|no-hw] [[no-]threads] [[no-]shared] [[no-]zlib|zlib-dynamic] [no-asm] [no-dso] [no-egd] [sctp] [386] [--prefix=DIR] [--openssldir=OPENSSLDIR] [--with-xxx[=vvv]] [--config=FILE] os/compiler[:flags]\n";
  25
  26 # Options:
  27 #
  28 # --config      add the given configuration file, which will be read after
  29 #               any "Configurations*" files that are found in the same
  30 #               directory as this script.
  31 # --prefix      prefix for the OpenSSL installation, which includes the
  32 #               directories bin, lib, include, share/man, share/doc/openssl
  33 #               This becomes the value of INSTALLTOP in Makefile
  34 #               (Default: /usr/local)
  35 # --openssldir  OpenSSL data area, such as openssl.cnf, certificates and keys.
  36 #               If it's a relative directory, it will be added on the directory
  37 #               given with --prefix.
  38 #               This becomes the value of OPENSSLDIR in Makefile and in C.
  39 #               (Default: PREFIX/ssl)
  40 #
  41 # --cross-compile-prefix Add specified prefix to binutils components.
  42 #
  43 # --api         One of 0.9.8, 1.0.0 or 1.1.0.  Do not compile support for
  44 #               interfaces deprecated as of the specified OpenSSL version.
  45 #
  46 # no-hw-xxx     do not compile support for specific crypto hardware.
  47 #               Generic OpenSSL-style methods relating to this support
  48 #               are always compiled but return NULL if the hardware
  49 #               support isn't compiled.
  50 # no-hw         do not compile support for any crypto hardware.
  51 # [no-]threads  [don't] try to create a library that is suitable for
  52 #               multithreaded applications (default is "threads" if we
  53 #               know how to do it)
  54 # [no-]shared   [don't] try to create shared libraries when supported.
  55 # [no-]pic      [don't] try to build position independent code when supported.
  56 #               If disabled, it also disables shared and dynamic-engine.
  57 # no-asm        do not use assembler
  58 # no-dso        do not compile in any native shared-library methods. This
  59 #               will ensure that all methods just return NULL.
  60 # no-egd        do not compile support for the entropy-gathering daemon APIs
  61 # [no-]zlib     [don't] compile support for zlib compression.
  62 # zlib-dynamic  Like "zlib", but the zlib library is expected to be a shared
  63 #               library and will be loaded in run-time by the OpenSSL library.
  64 # sctp          include SCTP support
  65 # enable-weak-ssl-ciphers
  66 #               Enable weak ciphers that are disabled by default.
  67 # 386           generate 80386 code in assembly modules
  68 # no-sse2       disables IA-32 SSE2 code in assembly modules, the above
  69 #               mentioned '386' option implies this one
  70 # no-<cipher>   build without specified algorithm (rsa, idea, rc5, ...)
  71 # -<xxx> +<xxx> compiler options are passed through
  72 # -static       while -static is also a pass-through compiler option (and
  73 #               as such is limited to environments where it's actually
  74 #               meaningful), it triggers a number configuration options,
  75 #               namely no-dso, no-pic, no-shared and no-threads. It is
  76 #               argued that the only reason to produce statically linked
  77 #               binaries (and in context it means executables linked with
  78 #               -static flag, and not just executables linked with static
  79 #               libcrypto.a) is to eliminate dependency on specific run-time,
  80 #               a.k.a. libc version. The mentioned config options are meant
  81 #               to achieve just that. Unfortunately on Linux it's impossible
  82 #               to eliminate the dependency completely for openssl executable
  83 #               because of getaddrinfo and gethostbyname calls, which can
  84 #               invoke dynamically loadable library facility anyway to meet
  85 #               the lookup requests. For this reason on Linux statically
  86 #               linked openssl executable has rather debugging value than
  87 #               production quality.
  88 #
  89 # DEBUG_SAFESTACK use type-safe stacks to enforce type-safety on stack items
  90 #               provided to stack calls. Generates unique stack functions for
  91 #               each possible stack type.
  92 # BN_LLONG      use the type 'long long' in crypto/bn/bn.h
  93 # RC4_CHAR      use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
  94 # Following are set automatically by this script
  95 #
  96 # MD5_ASM       use some extra md5 assembler,
  97 # SHA1_ASM      use some extra sha1 assembler, must define L_ENDIAN for x86
  98 # RMD160_ASM    use some extra ripemd160 assembler,
  99 # SHA256_ASM    sha256_block is implemented in assembler
 100 # SHA512_ASM    sha512_block is implemented in assembler
 101 # AES_ASM       AES_[en|de]crypt is implemented in assembler
 102
 103 # Minimum warning options... any contributions to OpenSSL should at least get
 104 # past these.
 105
 106 # DEBUG_UNUSED enables __owur (warn unused result) checks.
 107 # -DPEDANTIC complements -pedantic and is meant to mask code that
 108 # is not strictly standard-compliant and/or implementation-specific,
 109 # e.g. inline assembly, disregards to alignment requirements, such
 110 # that -pedantic would complain about. Incidentally -DPEDANTIC has
 111 # to be used even in sanitized builds, because sanitizer too is
 112 # supposed to and does take notice of non-standard behaviour. Then
 113 # -pedantic with pre-C9x compiler would also complain about 'long
 114 # long' not being supported. As 64-bit algorithms are common now,
 115 # it grew impossible to resolve this without sizeable additional
 116 # code, so we just tell compiler to be pedantic about everything
 117 # but 'long long' type.
 118
 119 my $gcc_devteam_warn = "-DDEBUG_UNUSED"
 120         . " -DPEDANTIC -pedantic -Wno-long-long"
 121         . " -Wall"
 122         . " -Wextra"
 123         . " -Wno-unused-parameter"
 124         . " -Wno-missing-field-initializers"
 125         . " -Wswitch"
 126         . " -Wsign-compare"
 127         . " -Wmissing-prototypes"
 128         . " -Wshadow"
 129         . " -Wformat"
 130         . " -Wtype-limits"
 131         . " -Wundef"
 132         . " -Werror"
 133         ;
 134
 135 # These are used in addition to $gcc_devteam_warn when the compiler is clang.
 136 # TODO(openssl-team): fix problems and investigate if (at least) the
 137 # following warnings can also be enabled:
 138 #       -Wcast-align
 139 #       -Wunreachable-code -- no, too ugly/compiler-specific
 140 #       -Wlanguage-extension-token -- no, we use asm()
 141 #       -Wunused-macros -- no, too tricky for BN and _XOPEN_SOURCE etc
 142 #       -Wextended-offsetof -- no, needed in CMS ASN1 code
 143 my $clang_devteam_warn = ""
 144         . " -Wswitch-default"
 145         . " -Wno-parentheses-equality"
 146         . " -Wno-language-extension-token"
 147         . " -Wno-extended-offsetof"
 148         . " -Wconditional-uninitialized"
 149         . " -Wincompatible-pointer-types-discards-qualifiers"
 150         . " -Wmissing-variable-declarations"
 151         . " -Wno-unknown-warning-option"
 152         ;
 153
 154 # This adds backtrace information to the memory leak info.  Is only used
 155 # when crypto-mdebug-backtrace is enabled.
 156 my $memleak_devteam_backtrace = "-rdynamic";
 157
 158 my $strict_warnings = 0;
 159
 160 # As for $BSDthreads. Idea is to maintain "collective" set of flags,
 161 # which would cover all BSD flavors. -pthread applies to them all,
 162 # but is treated differently. OpenBSD expands is as -D_POSIX_THREAD
 163 # -lc_r, which is sufficient. FreeBSD 4.x expands it as -lc_r,
 164 # which has to be accompanied by explicit -D_THREAD_SAFE and
 165 # sometimes -D_REENTRANT. FreeBSD 5.x expands it as -lc_r, which
 166 # seems to be sufficient?
 167 our $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";
 168
 169 #
 170 # API compatibility name to version number mapping.
 171 #
 172 my $maxapi = "1.1.0";           # API for "no-deprecated" builds
 173 my $apitable = {
 174     "1.1.0" => "0x10100000L",
 175     "1.0.0" => "0x10000000L",
 176     "0.9.8" => "0x00908000L",
 177 };
 178
 179 our %table = ();
 180 our %config = ();
 181 our %withargs = ();
 182 our $now_printing;      # set to current entry's name in print_table_entry
 183                         # (todo: right thing would be to encapsulate name
 184                         # into %target [class] and make print_table_entry
 185                         # a method)
 186
 187 # Forward declarations ###############################################
 188
 189 # read_config(filename)
 190 #
 191 # Reads a configuration file and populates %table with the contents
 192 # (which the configuration file places in %targets).
 193 sub read_config;
 194
 195 # resolve_config(target)
 196 #
 197 # Resolves all the late evaluations, inheritances and so on for the
 198 # chosen target and any target it inherits from.
 199 sub resolve_config;
 200
 201
 202 # Information collection #############################################
 203
 204 # Unified build supports separate build dir
 205 my $srcdir = catdir(absolutedir(dirname($0))); # catdir ensures local syntax
 206 my $blddir = catdir(absolutedir("."));         # catdir ensures local syntax
 207 my $dofile = abs2rel(catfile($srcdir, "util/dofile.pl"));
 208
 209 my $local_config_envname = 'OPENSSL_LOCAL_CONFIG_DIR';
 210
 211 $config{sourcedir} = abs2rel($srcdir);
 212 $config{builddir} = abs2rel($blddir);
 213
 214 # Collect reconfiguration information if needed
 215 my @argvcopy=@ARGV;
 216
 217 if (grep /^reconf(igure)?$/, @argvcopy) {
 218     die "reconfiguring with other arguments present isn't supported"
 219         if scalar @argvcopy > 1;
 220     if (-f "./configdata.pm") {
 221         my $file = "./configdata.pm";
 222         unless (my $return = do $file) {
 223             die "couldn't parse $file: $@" if $@;
 224             die "couldn't do $file: $!"    unless defined $return;
 225             die "couldn't run $file"       unless $return;
 226         }
 227
 228         @argvcopy = defined($configdata::config{perlargv}) ?
 229             @{$configdata::config{perlargv}} : ();
 230         die "Incorrect data to reconfigure, please do a normal configuration\n"
 231             if (grep(/^reconf/,@argvcopy));
 232         $config{perlenv} = $configdata::config{perlenv} // {};
 233     } else {
 234         die "Insufficient data to reconfigure, please do a normal configuration\n";
 235     }
 236 }
 237
 238 $config{perlargv} = [ @argvcopy ];
 239
 240 # Collect version numbers
 241 $config{version} = "unknown";
 242 $config{version_num} = "unknown";
 243 $config{shlib_version_number} = "unknown";
 244 $config{shlib_version_history} = "unknown";
 245
 246 collect_information(
 247     collect_from_file(catfile($srcdir,'include/openssl/opensslv.h')),
 248     qr/OPENSSL.VERSION.TEXT.*OpenSSL (\S+) / => sub { $config{version} = $1; },
 249     qr/OPENSSL.VERSION.NUMBER.*(0x\S+)/      => sub { $config{version_num}=$1 },
 250     qr/SHLIB_VERSION_NUMBER *"([^"]+)"/      => sub { $config{shlib_version_number}=$1 },
 251     qr/SHLIB_VERSION_HISTORY *"([^"]*)"/     => sub { $config{shlib_version_history}=$1 }
 252     );
 253 if ($config{shlib_version_history} ne "") { $config{shlib_version_history} .= ":"; }
 254
 255 ($config{major}, $config{minor})
 256     = ($config{version} =~ /^([0-9]+)\.([0-9\.]+)/);
 257 ($config{shlib_major}, $config{shlib_minor})
 258     = ($config{shlib_version_number} =~ /^([0-9]+)\.([0-9\.]+)/);
 259 die "erroneous version information in opensslv.h: ",
 260     "$config{major}, $config{minor}, $config{shlib_major}, $config{shlib_minor}\n"
 261     if ($config{major} eq "" || $config{minor} eq ""
 262         || $config{shlib_major} eq "" ||  $config{shlib_minor} eq "");
 263
 264 # Collect target configurations
 265
 266 my $pattern = catfile(dirname($0), "Configurations", "*.conf");
 267 foreach (sort glob($pattern)) {
 268     &read_config($_);
 269 }
 270
 271 if (defined env($local_config_envname)) {
 272     if ($^O eq 'VMS') {
 273         # VMS environment variables are logical names,
 274         # which can be used as is
 275         $pattern = $local_config_envname . ':' . '*.conf';
 276     } else {
 277         $pattern = catfile(env($local_config_envname), '*.conf');
 278     }
 279
 280     foreach (sort glob($pattern)) {
 281         &read_config($_);
 282     }
 283 }
 284
 285 # Save away perl command information
 286 $config{perl_cmd} = $^X;
 287 $config{perl_version} = $Config{version};
 288 $config{perl_archname} = $Config{archname};
 289
 290 $config{prefix}="";
 291 $config{openssldir}="";
 292 $config{processor}="";
 293 $config{libdir}="";
 294 my $auto_threads=1;    # enable threads automatically? true by default
 295 my $default_ranlib;
 296
 297 # Top level directories to build
 298 $config{dirs} = [ "crypto", "ssl", "engines", "apps", "test", "util", "tools", "fuzz" ];
 299 # crypto/ subdirectories to build
 300 $config{sdirs} = [
 301     "objects",
 302     "md2", "md4", "md5", "sha", "mdc2", "hmac", "ripemd", "whrlpool", "poly1305", "blake2", "siphash", "sm3",
 303     "des", "aes", "rc2", "rc4", "rc5", "idea", "aria", "bf", "cast", "camellia", "seed", "sm4", "chacha", "modes",
 304     "bn", "ec", "rsa", "dsa", "dh", "sm2", "dso", "engine",
 305     "buffer", "bio", "stack", "lhash", "rand", "err",
 306     "evp", "asn1", "pem", "x509", "x509v3", "conf", "txt_db", "pkcs7", "pkcs12", "comp", "ocsp", "ui",
 307     "cms", "ts", "srp", "cmac", "ct", "async", "kdf", "store"
 308     ];
 309 # test/ subdirectories to build
 310 $config{tdirs} = [ "ossl_shim" ];
 311
 312 # Known TLS and DTLS protocols
 313 my @tls = qw(ssl3 tls1 tls1_1 tls1_2 tls1_3);
 314 my @dtls = qw(dtls1 dtls1_2);
 315
 316 # Explicitly known options that are possible to disable.  They can
 317 # be regexps, and will be used like this: /^no-${option}$/
 318 # For developers: keep it sorted alphabetically
 319
 320 my @disablables = (
 321     "afalgeng",
 322     "aria",
 323     "asan",
 324     "asm",
 325     "async",
 326     "autoalginit",
 327     "autoerrinit",
 328     "bf",
 329     "blake2",
 330     "camellia",
 331     "capieng",
 332     "cast",
 333     "chacha",
 334     "cmac",
 335     "cms",
 336     "comp",
 337     "crypto-mdebug",
 338     "crypto-mdebug-backtrace",
 339     "ct",
 340     "deprecated",
 341     "des",
 342     "devcryptoeng",
 343     "dgram",
 344     "dh",
 345     "dsa",
 346     "dso",
 347     "dtls",
 348     "dynamic-engine",
 349     "ec",
 350     "ec2m",
 351     "ecdh",
 352     "ecdsa",
 353     "ec_nistp_64_gcc_128",
 354     "egd",
 355     "engine",
 356     "err",
 357     "external-tests",
 358     "filenames",
 359     "fuzz-libfuzzer",
 360     "fuzz-afl",
 361     "gost",
 362     "heartbeats",
 363     "hw(-.+)?",
 364     "idea",
 365     "makedepend",
 366     "md2",
 367     "md4",
 368     "mdc2",
 369     "msan",
 370     "multiblock",
 371     "nextprotoneg",
 372     "ocb",
 373     "ocsp",
 374     "pic",
 375     "poly1305",
 376     "posix-io",
 377     "psk",
 378     "rc2",
 379     "rc4",
 380     "rc5",
 381     "rdrand",
 382     "rfc3779",
 383     "rmd160",
 384     "scrypt",
 385     "sctp",
 386     "seed",
 387     "shared",
 388     "siphash",
 389     "sm2",
 390     "sm3",
 391     "sm4",
 392     "sock",
 393     "srp",
 394     "srtp",
 395     "sse2",
 396     "ssl",
 397     "ssl-trace",
 398     "static-engine",
 399     "stdio",
 400     "tests",
 401     "threads",
 402     "tls",
 403     "tls13downgrade",
 404     "ts",
 405     "ubsan",
 406     "ui-console",
 407     "unit-test",
 408     "whirlpool",
 409     "weak-ssl-ciphers",
 410     "zlib",
 411     "zlib-dynamic",
 412     );
 413 foreach my $proto ((@tls, @dtls))
 414         {
 415         push(@disablables, $proto);
 416         push(@disablables, "$proto-method") unless $proto eq "tls1_3";
 417         }
 418
 419 my %deprecated_disablables = (
 420     "ssl2" => undef,
 421     "buf-freelists" => undef,
 422     "ripemd" => "rmd160",
 423     "ui" => "ui-console",
 424     );
 425
 426 # All of the following is disabled by default (RC5 was enabled before 0.9.8):
 427
 428 our %disabled = ( # "what"         => "comment"
 429                   "asan"                => "default",
 430                   "crypto-mdebug"       => "default",
 431                   "crypto-mdebug-backtrace" => "default",
 432                   "devcryptoeng"        => "default",
 433                   "ec_nistp_64_gcc_128" => "default",
 434                   "egd"                 => "default",
 435                   "external-tests"      => "default",
 436                   "fuzz-libfuzzer"      => "default",
 437                   "fuzz-afl"            => "default",
 438                   "heartbeats"          => "default",
 439                   "md2"                 => "default",
 440                   "msan"                => "default",
 441                   "rc5"                 => "default",
 442                   "sctp"                => "default",
 443                   "ssl-trace"           => "default",
 444                   "ssl3"                => "default",
 445                   "ssl3-method"         => "default",
 446                   "ubsan"               => "default",
 447                   "tls13downgrade"      => "default",
 448                   "unit-test"           => "default",
 449                   "weak-ssl-ciphers"    => "default",
 450                   "zlib"                => "default",
 451                   "zlib-dynamic"        => "default",
 452                 );
 453
 454 # Note: => pair form used for aesthetics, not to truly make a hash table
 455 my @disable_cascades = (
 456     # "what"            => [ "cascade", ... ]
 457     sub { $config{processor} eq "386" }
 458                         => [ "sse2" ],
 459     "ssl"               => [ "ssl3" ],
 460     "ssl3-method"       => [ "ssl3" ],
 461     "zlib"              => [ "zlib-dynamic" ],
 462     "des"               => [ "mdc2" ],
 463     "ec"                => [ "ecdsa", "ecdh" ],
 464
 465     "dgram"             => [ "dtls", "sctp" ],
 466     "sock"              => [ "dgram" ],
 467     "dtls"              => [ @dtls ],
 468     sub { 0 == scalar grep { !$disabled{$_} } @dtls }
 469                         => [ "dtls" ],
 470
 471     "tls"               => [ @tls ],
 472     sub { 0 == scalar grep { !$disabled{$_} } @tls }
 473                         => [ "tls" ],
 474
 475     "crypto-mdebug"     => [ "crypto-mdebug-backtrace" ],
 476
 477     # Without DSO, we can't load dynamic engines, so don't build them dynamic
 478     "dso"               => [ "dynamic-engine" ],
 479
 480     # Without position independent code, there can be no shared libraries or DSOs
 481     "pic"               => [ "shared" ],
 482     "shared"            => [ "dynamic-engine" ],
 483     "engine"            => [ "afalgeng", "devcryptoeng" ],
 484
 485     # no-autoalginit is only useful when building non-shared
 486     "autoalginit"       => [ "shared", "apps" ],
 487
 488     "stdio"             => [ "apps", "capieng", "egd" ],
 489     "apps"              => [ "tests" ],
 490     "tests"             => [ "external-tests" ],
 491     "comp"              => [ "zlib" ],
 492     "ec"                => [ "tls1_3", "sm2" ],
 493     "sm3"               => [ "sm2" ],
 494     sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
 495
 496     sub { !$disabled{"msan"} } => [ "asm" ],
 497     );
 498
 499 # Avoid protocol support holes.  Also disable all versions below N, if version
 500 # N is disabled while N+1 is enabled.
 501 #
 502 my @list = (reverse @tls);
 503 while ((my $first, my $second) = (shift @list, shift @list)) {
 504     last unless @list;
 505     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 506                               => [ @list ] );
 507     unshift @list, $second;
 508 }
 509 my @list = (reverse @dtls);
 510 while ((my $first, my $second) = (shift @list, shift @list)) {
 511     last unless @list;
 512     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 513                               => [ @list ] );
 514     unshift @list, $second;
 515 }
 516
 517 # Explicit "no-..." options will be collected in %disabled along with the defaults.
 518 # To remove something from %disabled, use "enable-foo".
 519 # For symmetry, "disable-foo" is a synonym for "no-foo".
 520
 521 &usage if ($#ARGV < 0);
 522
 523 # For the "make variables" CINCLUDES and CDEFINES, we support lists with
 524 # platform specific list separators.  Users from those platforms should
 525 # recognise those separators from how you set up the PATH to find executables.
 526 # The default is the Unix like separator, :, but as an exception, we also
 527 # support the space as separator.
 528 my $list_separator_re =
 529     { VMS           => qr/(?<!\^),/,
 530       MSWin32       => qr/(?<!\\);/ } -> {$^O} // qr/(?<!\\)[:\s]/;
 531 # All the "make variables" we support
 532 # Some get pre-populated for the sake of backward compatibility
 533 # (we supported those before the change to "make variable" support.
 534 my %user = (
 535     AR          => env('AR'),
 536     ARFLAGS     => [],
 537     AS          => undef,
 538     ASFLAGS     => [],
 539     CC          => env('CC'),
 540     CFLAGS      => [],
 541     CXX         => env('CXX'),
 542     CXXFLAGS    => [],
 543     CPP         => undef,
 544     CPPFLAGS    => [],  # -D, -I, -Wp,
 545     CPPDEFINES  => [],  # Alternative for -D
 546     CPPINCLUDES => [],  # Alternative for -I
 547     CROSS_COMPILE => env('CROSS_COMPILE'),
 548     HASHBANGPERL=> env('HASHBANGPERL') || env('PERL'),
 549     LD          => undef,
 550     LDFLAGS     => [],  # -L, -Wl,
 551     LDLIBS      => [],  # -l
 552     MT          => undef,
 553     MTFLAGS     => [],
 554     RANLIB      => env('RANLIB'),
 555     RC          => env('RC') || env('WINDRES'),
 556     RCFLAGS     => [],
 557     RM          => undef,
 558    );
 559 # Info about what "make variables" may be prefixed with the cross compiler
 560 # prefix.  This should NEVER mention any such variable with a list for value.
 561 my @user_crossable = qw ( AR AS CC CXX CPP LD MT RANLIB RC );
 562 # The same but for flags given as Configure options.  These are *additional*
 563 # input, as opposed to the VAR=string option that override the corresponding
 564 # config target attributes
 565 my %useradd = (
 566     CPPDEFINES  => [],
 567     CPPINCLUDES => [],
 568     CPPFLAGS    => [],
 569     CFLAGS      => [],
 570     CXXFLAGS    => [],
 571     LDFLAGS     => [],
 572     LDLIBS      => [],
 573    );
 574
 575 my %user_synonyms = (
 576     HASHBANGPERL=> 'PERL',
 577     RC          => 'WINDRES',
 578    );
 579
 580 # Some target attributes have been renamed, this is the translation table
 581 my %target_attr_translate =(
 582     ar          => 'AR',
 583     as          => 'AS',
 584     cc          => 'CC',
 585     cxx         => 'CXX',
 586     cpp         => 'CPP',
 587     hashbangperl => 'HASHBANGPERL',
 588     ld          => 'LD',
 589     mt          => 'MT',
 590     ranlib      => 'RANLIB',
 591     rc          => 'RC',
 592     rm          => 'RM',
 593    );
 594
 595 # Initialisers coming from 'config' scripts
 596 $config{defines} = [ split(/$list_separator_re/, env('__CNF_CPPDEFINES')) ],
 597 $config{includes} = [ split(/$list_separator_re/, env('__CNF_CPPINCLUDES')) ],
 598 $config{cppflags} = [ env('__CNF_CPPFLAGS') || () ],
 599 $config{cflags} = [ env('__CNF_CFLAGS') || () ],
 600 $config{cxxflags} = [ env('__CNF_CXXFLAGS') || () ],
 601 $config{lflags} = [ env('__CNF_LDFLAGS') || () ],
 602 $config{ex_libs} = [ env('__CNF_LDLIBS') || () ],
 603
 604 $config{openssl_api_defines}=[];
 605 $config{openssl_algorithm_defines}=[];
 606 $config{openssl_thread_defines}=[];
 607 $config{openssl_sys_defines}=[];
 608 $config{openssl_other_defines}=[];
 609 $config{options}="";
 610 $config{build_type} = "release";
 611 my $target="";
 612
 613 my %cmdvars = ();               # Stores FOO='blah' type arguments
 614 my %unsupported_options = ();
 615 my %deprecated_options = ();
 616 # If you change this, update apps/version.c
 617 my @known_seed_sources = qw(getrandom devrandom os egd none rdcpu librandom);
 618 my @seed_sources = ();
 619 while (@argvcopy)
 620         {
 621         $_ = shift @argvcopy;
 622
 623         # Support env variable assignments among the options
 624         if (m|^(\w+)=(.+)?$|)
 625                 {
 626                 $cmdvars{$1} = $2;
 627                 # Every time a variable is given as a configuration argument,
 628                 # it acts as a reset if the variable.
 629                 if (exists $user{$1})
 630                         {
 631                         $user{$1} = ref $user{$1} eq "ARRAY" ? [] : undef;
 632                         }
 633                 #if (exists $useradd{$1})
 634                 #       {
 635                 #       $useradd{$1} = [];
 636                 #       }
 637                 next;
 638                 }
 639
 640         # VMS is a case insensitive environment, and depending on settings
 641         # out of our control, we may receive options uppercased.  Let's
 642         # downcase at least the part before any equal sign.
 643         if ($^O eq "VMS")
 644                 {
 645                 s/^([^=]*)/lc($1)/e;
 646                 }
 647
 648         # some people just can't read the instructions, clang people have to...
 649         s/^-no-(?!integrated-as)/no-/;
 650
 651         # rewrite some options in "enable-..." form
 652         s /^-?-?shared$/enable-shared/;
 653         s /^sctp$/enable-sctp/;
 654         s /^threads$/enable-threads/;
 655         s /^zlib$/enable-zlib/;
 656         s /^zlib-dynamic$/enable-zlib-dynamic/;
 657
 658         if (/^(no|disable|enable)-(.+)$/)
 659                 {
 660                 my $word = $2;
 661                 if (!exists $deprecated_disablables{$word}
 662                         && !grep { $word =~ /^${_}$/ } @disablables)
 663                         {
 664                         $unsupported_options{$_} = 1;
 665                         next;
 666                         }
 667                 }
 668         if (/^no-(.+)$/ || /^disable-(.+)$/)
 669                 {
 670                 foreach my $proto ((@tls, @dtls))
 671                         {
 672                         if ($1 eq "$proto-method")
 673                                 {
 674                                 $disabled{"$proto"} = "option($proto-method)";
 675                                 last;
 676                                 }
 677                         }
 678                 if ($1 eq "dtls")
 679                         {
 680                         foreach my $proto (@dtls)
 681                                 {
 682                                 $disabled{$proto} = "option(dtls)";
 683                                 }
 684                         $disabled{"dtls"} = "option(dtls)";
 685                         }
 686                 elsif ($1 eq "ssl")
 687                         {
 688                         # Last one of its kind
 689                         $disabled{"ssl3"} = "option(ssl)";
 690                         }
 691                 elsif ($1 eq "tls")
 692                         {
 693                         # XXX: Tests will fail if all SSL/TLS
 694                         # protocols are disabled.
 695                         foreach my $proto (@tls)
 696                                 {
 697                                 $disabled{$proto} = "option(tls)";
 698                                 }
 699                         }
 700                 elsif ($1 eq "static-engine")
 701                         {
 702                         delete $disabled{"dynamic-engine"};
 703                         }
 704                 elsif ($1 eq "dynamic-engine")
 705                         {
 706                         $disabled{"dynamic-engine"} = "option";
 707                         }
 708                 elsif (exists $deprecated_disablables{$1})
 709                         {
 710                         $deprecated_options{$_} = 1;
 711                         if (defined $deprecated_disablables{$1})
 712                                 {
 713                                 $disabled{$deprecated_disablables{$1}} = "option";
 714                                 }
 715                         }
 716                 else
 717                         {
 718                         $disabled{$1} = "option";
 719                         }
 720                 # No longer an automatic choice
 721                 $auto_threads = 0 if ($1 eq "threads");
 722                 }
 723         elsif (/^enable-(.+)$/)
 724                 {
 725                 if ($1 eq "static-engine")
 726                         {
 727                         $disabled{"dynamic-engine"} = "option";
 728                         }
 729                 elsif ($1 eq "dynamic-engine")
 730                         {
 731                         delete $disabled{"dynamic-engine"};
 732                         }
 733                 elsif ($1 eq "zlib-dynamic")
 734                         {
 735                         delete $disabled{"zlib"};
 736                         }
 737                 my $algo = $1;
 738                 delete $disabled{$algo};
 739
 740                 # No longer an automatic choice
 741                 $auto_threads = 0 if ($1 eq "threads");
 742                 }
 743         elsif (/^--strict-warnings$/)
 744                 {
 745                 $strict_warnings = 1;
 746                 }
 747         elsif (/^--debug$/)
 748                 {
 749                 $config{build_type} = "debug";
 750                 }
 751         elsif (/^--release$/)
 752                 {
 753                 $config{build_type} = "release";
 754                 }
 755         elsif (/^386$/)
 756                 { $config{processor}=386; }
 757         elsif (/^fips$/)
 758                 {
 759                 die "FIPS mode not supported\n";
 760                 }
 761         elsif (/^rsaref$/)
 762                 {
 763                 # No RSAref support any more since it's not needed.
 764                 # The check for the option is there so scripts aren't
 765                 # broken
 766                 }
 767         elsif (/^nofipscanistercheck$/)
 768                 {
 769                 die "FIPS mode not supported\n";
 770                 }
 771         elsif (/^[-+]/)
 772                 {
 773                 if (/^--prefix=(.*)$/)
 774                         {
 775                         $config{prefix}=$1;
 776                         die "Directory given with --prefix MUST be absolute\n"
 777                                 unless file_name_is_absolute($config{prefix});
 778                         }
 779                 elsif (/^--api=(.*)$/)
 780                         {
 781                         $config{api}=$1;
 782                         }
 783                 elsif (/^--libdir=(.*)$/)
 784                         {
 785                         $config{libdir}=$1;
 786                         }
 787                 elsif (/^--openssldir=(.*)$/)
 788                         {
 789                         $config{openssldir}=$1;
 790                         }
 791                 elsif (/^--with-zlib-lib=(.*)$/)
 792                         {
 793                         $withargs{zlib_lib}=$1;
 794                         }
 795                 elsif (/^--with-zlib-include=(.*)$/)
 796                         {
 797                         $withargs{zlib_include}=$1;
 798                         }
 799                 elsif (/^--with-fuzzer-lib=(.*)$/)
 800                         {
 801                         $withargs{fuzzer_lib}=$1;
 802                         }
 803                 elsif (/^--with-fuzzer-include=(.*)$/)
 804                         {
 805                         $withargs{fuzzer_include}=$1;
 806                         }
 807                 elsif (/^--with-rand-seed=(.*)$/)
 808                         {
 809                         foreach my $x (split(m|,|, $1))
 810                             {
 811                             die "Unknown --with-rand-seed choice $x\n"
 812                                 if ! grep { $x eq $_ } @known_seed_sources;
 813                             push @seed_sources, $x;
 814                             }
 815                         }
 816                 elsif (/^--cross-compile-prefix=(.*)$/)
 817                         {
 818                         $user{CROSS_COMPILE}=$1;
 819                         }
 820                 elsif (/^--config=(.*)$/)
 821                         {
 822                         read_config $1;
 823                         }
 824                 elsif (/^-L(.*)$/)
 825                         {
 826                         push @{$useradd{LDFLAGS}}, $_;
 827                         }
 828                 elsif (/^-l(.*)$/ or /^-Wl,/)
 829                         {
 830                         push @{$useradd{LDLIBS}}, $_;
 831                         }
 832                 elsif (/^-framework$/)
 833                         {
 834                         push @{$useradd{LDLIBS}}, $_, shift(@argvcopy);
 835                         }
 836                 elsif (/^-rpath$/ or /^-R$/)
 837                         # -rpath is the OSF1 rpath flag
 838                         # -R is the old Solaris rpath flag
 839                         {
 840                         my $rpath = shift(@argvcopy) || "";
 841                         $rpath .= " " if $rpath ne "";
 842                         push @{$useradd{LDFLAGS}}, $_, $rpath;
 843                         }
 844                 elsif (/^-static$/)
 845                         {
 846                         push @{$useradd{LDFLAGS}}, $_;
 847                         $disabled{"dso"} = "forced";
 848                         $disabled{"pic"} = "forced";
 849                         $disabled{"shared"} = "forced";
 850                         $disabled{"threads"} = "forced";
 851                         }
 852                 elsif (/^-D(.*)$/)
 853                         {
 854                         push @{$useradd{CPPDEFINES}}, $1;
 855                         }
 856                 elsif (/^-I(.*)$/)
 857                         {
 858                         push @{$useradd{CPPINCLUDES}}, $1;
 859                         }
 860                 elsif (/^-Wp,$/)
 861                         {
 862                         push @{$useradd{CPPFLAGS}}, $1;
 863                         }
 864                 else    # common if (/^[-+]/), just pass down...
 865                         {
 866                         $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
 867                         push @{$useradd{CFLAGS}}, $_;
 868                         push @{$useradd{CXXFLAGS}}, $_;
 869                         }
 870                 }
 871         else
 872                 {
 873                 die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
 874                 $target=$_;
 875                 }
 876         unless ($_ eq $target || /^no-/ || /^disable-/)
 877                 {
 878                 # "no-..." follows later after implied deactivations
 879                 # have been derived.  (Don't take this too seriously,
 880                 # we really only write OPTIONS to the Makefile out of
 881                 # nostalgia.)
 882
 883                 if ($config{options} eq "")
 884                         { $config{options} = $_; }
 885                 else
 886                         { $config{options} .= " ".$_; }
 887                 }
 888
 889         if (defined($config{api}) && !exists $apitable->{$config{api}}) {
 890                 die "***** Unsupported api compatibility level: $config{api}\n",
 891         }
 892
 893         if (keys %deprecated_options)
 894                 {
 895                 warn "***** Deprecated options: ",
 896                         join(", ", keys %deprecated_options), "\n";
 897                 }
 898         if (keys %unsupported_options)
 899                 {
 900                 die "***** Unsupported options: ",
 901                         join(", ", keys %unsupported_options), "\n";
 902                 }
 903         }
 904
 905 # If any %useradd entry has been set, we must check that the "make
 906 # variables" haven't been set.  We start by checking of any %useradd entry
 907 # is set.
 908 if (grep { scalar @$_ > 0 } values %useradd) {
 909     # Hash of env / make variables names.  The possible values are:
 910     # 1 - "make vars"
 911     # 2 - %useradd entry set
 912     # 3 - both set
 913     my %detected_vars =
 914         map { my $v = 0;
 915               $v += 1 if $cmdvars{$_};
 916               $v += 2 if @{$useradd{$_}};
 917               $_ => $v }
 918         keys %useradd;
 919
 920     # If any of the corresponding "make variables" is set, we error
 921     if (grep { $_ & 1 } values %detected_vars) {
 922         my $names = join(', ', grep { $detected_vars{$_} > 0 }
 923                                sort keys %detected_vars);
 924         die <<"_____";
 925 ***** Mixing make variables and additional compiler/linker flags as
 926 ***** configure command line option is not permitted.
 927 ***** Affected make variables: $names
 928 _____
 929     }
 930 }
 931
 932 # Check through all supported command line variables to see if any of them
 933 # were set, and canonicalise the values we got.  If no compiler or linker
 934 # flag or anything else that affects %useradd was set, we also check the
 935 # environment for values.
 936 my $anyuseradd =
 937     grep { defined $_ && (ref $_ ne 'ARRAY' || @$_) } values %useradd;
 938 foreach (keys %user) {
 939     my $value = $cmdvars{$_};
 940     $value //= env($_) unless $anyuseradd;
 941     $value //=
 942         defined $user_synonyms{$_} ? $cmdvars{$user_synonyms{$_}} : undef;
 943     $value //= defined $user_synonyms{$_} ? env($user_synonyms{$_}) : undef
 944         unless $anyuseradd;
 945
 946     if (defined $value) {
 947         if (ref $user{$_} eq 'ARRAY') {
 948             $user{$_} = [ split /$list_separator_re/, $value ];
 949         } elsif (!defined $user{$_}) {
 950             $user{$_} = $value;
 951         }
 952     }
 953 }
 954
 955 if (grep { $_ =~ /(^|\s)-Wl,-rpath,/ } ($user{LDLIBS} ? @{$user{LDLIBS}} : ())
 956     && !$disabled{shared}
 957     && !($disabled{asan} && $disabled{msan} && $disabled{ubsan})) {
 958     die "***** Cannot simultaneously use -rpath, shared libraries, and\n",
 959         "***** any of asan, msan or ubsan\n";
 960 }
 961
 962 my @tocheckfor = (keys %disabled);
 963 while (@tocheckfor) {
 964     my %new_tocheckfor = ();
 965     my @cascade_copy = (@disable_cascades);
 966     while (@cascade_copy) {
 967         my ($test, $descendents) = (shift @cascade_copy, shift @cascade_copy);
 968         if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
 969             foreach(grep { !defined($disabled{$_}) } @$descendents) {
 970                 $new_tocheckfor{$_} = 1; $disabled{$_} = "forced";
 971             }
 972         }
 973     }
 974     @tocheckfor = (keys %new_tocheckfor);
 975 }
 976
 977 our $die = sub { die @_; };
 978 if ($target eq "TABLE") {
 979     local $die = sub { warn @_; };
 980     foreach (sort keys %table) {
 981         print_table_entry($_, "TABLE");
 982     }
 983     exit 0;
 984 }
 985
 986 if ($target eq "LIST") {
 987     foreach (sort keys %table) {
 988         print $_,"\n" unless $table{$_}->{template};
 989     }
 990     exit 0;
 991 }
 992
 993 if ($target eq "HASH") {
 994     local $die = sub { warn @_; };
 995     print "%table = (\n";
 996     foreach (sort keys %table) {
 997         print_table_entry($_, "HASH");
 998     }
 999     exit 0;
1000 }
1001
1002 print "Configuring OpenSSL version $config{version} ($config{version_num}) ";
1003 print "for $target\n";
1004
1005 if (scalar(@seed_sources) == 0) {
1006     print "Using os-specific seed configuration\n";
1007     push @seed_sources, 'os';
1008 }
1009 die "Cannot seed with none and anything else"
1010     if scalar(grep { $_ eq 'none' } @seed_sources) > 0
1011         && scalar(@seed_sources) > 1;
1012 push @{$config{openssl_other_defines}},
1013      map { (my $x = $_) =~ tr|[\-a-z]|[_A-Z]|; "OPENSSL_RAND_SEED_$x" }
1014         @seed_sources;
1015
1016 # Backward compatibility?
1017 if ($target =~ m/^CygWin32(-.*)$/) {
1018     $target = "Cygwin".$1;
1019 }
1020
1021 # Support for legacy targets having a name starting with 'debug-'
1022 my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
1023 if ($d) {
1024     $config{build_type} = "debug";
1025
1026     # If we do not find debug-foo in the table, the target is set to foo.
1027     if (!$table{$target}) {
1028         $target = $t;
1029     }
1030 }
1031 $config{target} = $target;
1032 my %target = resolve_config($target);
1033
1034 &usage if (!%target || $target{template});
1035
1036 foreach (keys %target_attr_translate) {
1037     $target{$target_attr_translate{$_}} = $target{$_}
1038         if $target{$_};
1039     delete $target{$_};
1040 }
1041
1042 %target = ( %{$table{DEFAULTS}}, %target );
1043
1044 # Make the flags to build DSOs the same as for shared libraries unless they
1045 # are already defined
1046 $target{module_cflags} = $target{shared_cflag} unless defined $target{module_cflags};
1047 $target{module_cxxflags} = $target{shared_cxxflag} unless defined $target{module_cxxflags};
1048 $target{module_ldflags} = $target{shared_ldflag} unless defined $target{module_ldflags};
1049 {
1050     my $shared_info_pl =
1051         catfile(dirname($0), "Configurations", "shared-info.pl");
1052     my %shared_info = read_eval_file($shared_info_pl);
1053     push @{$target{_conf_fname_int}}, $shared_info_pl;
1054     my $si = $target{shared_target};
1055     while (ref $si ne "HASH") {
1056         last if ! defined $si;
1057         if (ref $si eq "CODE") {
1058             $si = $si->();
1059         } else {
1060             $si = $shared_info{$si};
1061         }
1062     }
1063
1064     # Some of the 'shared_target' values don't have any entried in
1065     # %shared_info.  That's perfectly fine, AS LONG AS the build file
1066     # template knows how to handle this.  That is currently the case for
1067     # Windows and VMS.
1068     if (defined $si) {
1069         # Just as above, copy certain shared_* attributes to the corresponding
1070         # module_ attribute unless the latter is already defined
1071         $si->{module_cflags} = $si->{shared_cflag} unless defined $si->{module_cflags};
1072         $si->{module_cxxflags} = $si->{shared_cxxflag} unless defined $si->{module_cxxflags};
1073         $si->{module_ldflags} = $si->{shared_ldflag} unless defined $si->{module_ldflags};
1074         foreach (sort keys %$si) {
1075             $target{$_} = defined $target{$_}
1076                 ? add($si->{$_})->($target{$_})
1077                 : $si->{$_};
1078         }
1079     }
1080 }
1081
1082 my %conf_files = map { $_ => 1 } (@{$target{_conf_fname_int}});
1083 $config{conf_files} = [ sort keys %conf_files ];
1084
1085 foreach my $feature (@{$target{disable}}) {
1086     if (exists $deprecated_disablables{$feature}) {
1087         warn "***** config $target disables deprecated feature $feature\n";
1088     } elsif (!grep { $feature eq $_ } @disablables) {
1089         die "***** config $target disables unknown feature $feature\n";
1090     }
1091     $disabled{$feature} = 'config';
1092 }
1093 foreach my $feature (@{$target{enable}}) {
1094     if ("default" eq ($disabled{$_} // "")) {
1095         if (exists $deprecated_disablables{$feature}) {
1096             warn "***** config $target enables deprecated feature $feature\n";
1097         } elsif (!grep { $feature eq $_ } @disablables) {
1098             die "***** config $target enables unknown feature $feature\n";
1099         }
1100         delete $disabled{$_};
1101     }
1102 }
1103
1104 $target{CXXFLAGS}//=$target{CFLAGS} if $target{CXX};
1105 $target{cxxflags}//=$target{cflags} if $target{CXX};
1106 $target{exe_extension}="";
1107 $target{exe_extension}=".exe" if ($config{target} eq "DJGPP"
1108                                   || $config{target} =~ /^(?:Cygwin|mingw)/);
1109 $target{exe_extension}=".pm"  if ($config{target} =~ /vos/);
1110
1111 ($target{shared_extension_simple}=$target{shared_extension})
1112     =~ s|\.\$\(SHLIB_VERSION_NUMBER\)||;
1113 $target{dso_extension}=$target{shared_extension_simple};
1114 ($target{shared_import_extension}=$target{shared_extension_simple}.".a")
1115     if ($config{target} =~ /^(?:Cygwin|mingw)/);
1116
1117 # Allow overriding the names of some tools.  USE WITH CARE
1118 # Note: only Unix cares about HASHBANGPERL...  that explains
1119 # the default string.
1120 $config{perl} =    ($^O ne "VMS" ? $^X : "perl");
1121 foreach (keys %user) {
1122     my $ref_type = ref $user{$_};
1123
1124     # Temporary function.  Takes an intended ref type (empty string or "ARRAY")
1125     # and a value that's to be coerced into that type.
1126     my $mkvalue = sub {
1127         my $type = shift;
1128         my $value = shift;
1129         my $undef_p = shift;
1130
1131         die "Too many arguments for \$mkvalue" if @_;
1132
1133         while (ref $value eq 'CODE') {
1134             $value = $value->();
1135         }
1136
1137         if ($type eq 'ARRAY') {
1138             return undef unless defined $value;
1139             return undef if ref $value ne 'ARRAY' && !$value;
1140             return undef if ref $value eq 'ARRAY' && !@$value;
1141             return [ $value ] unless ref $value eq 'ARRAY';
1142         }
1143         return undef unless $value;
1144         return $value;
1145     };
1146
1147     $config{$_} =
1148         $mkvalue->($ref_type, $user{$_})
1149         || $mkvalue->($ref_type, $target{$_});
1150     delete $config{$_} unless defined $config{$_};
1151 }
1152
1153 # Allow overriding the build file name
1154 $config{build_file} = env('BUILDFILE') || $target{build_file} || "Makefile";
1155
1156 my %disabled_info = ();         # For configdata.pm
1157 foreach my $what (sort keys %disabled) {
1158     $config{options} .= " no-$what";
1159
1160     if (!grep { $what eq $_ } ( 'dso', 'threads', 'shared', 'pic',
1161                                 'dynamic-engine', 'makedepend',
1162                                 'zlib-dynamic', 'zlib', 'sse2' )) {
1163         (my $WHAT = uc $what) =~ s|-|_|g;
1164
1165         # Fix up C macro end names
1166         $WHAT = "RMD160" if $what eq "ripemd";
1167
1168         # fix-up crypto/directory name(s)
1169         $what = "ripemd" if $what eq "rmd160";
1170         $what = "whrlpool" if $what eq "whirlpool";
1171
1172         my $macro = $disabled_info{$what}->{macro} = "OPENSSL_NO_$WHAT";
1173
1174         if ((grep { $what eq $_ } @{$config{sdirs}})
1175                 && $what ne 'async' && $what ne 'err') {
1176             @{$config{sdirs}} = grep { $what ne $_} @{$config{sdirs}};
1177             $disabled_info{$what}->{skipped} = [ catdir('crypto', $what) ];
1178
1179             if ($what ne 'engine') {
1180                 push @{$config{openssl_algorithm_defines}}, $macro;
1181             } else {
1182                 @{$config{dirs}} = grep !/^engines$/, @{$config{dirs}};
1183                 push @{$disabled_info{engine}->{skipped}}, catdir('engines');
1184                 push @{$config{openssl_other_defines}}, $macro;
1185             }
1186         } else {
1187             push @{$config{openssl_other_defines}}, $macro;
1188         }
1189
1190     }
1191 }
1192
1193 # Make sure build_scheme is consistent.
1194 $target{build_scheme} = [ $target{build_scheme} ]
1195     if ref($target{build_scheme}) ne "ARRAY";
1196
1197 my ($builder, $builder_platform, @builder_opts) =
1198     @{$target{build_scheme}};
1199
1200 foreach my $checker (($builder_platform."-".$target{build_file}."-checker.pm",
1201                       $builder_platform."-checker.pm")) {
1202     my $checker_path = catfile($srcdir, "Configurations", $checker);
1203     if (-f $checker_path) {
1204         my $fn = $ENV{CONFIGURE_CHECKER_WARN}
1205             ? sub { warn $@; } : sub { die $@; };
1206         if (! do $checker_path) {
1207             if ($@) {
1208                 $fn->($@);
1209             } elsif ($!) {
1210                 $fn->($!);
1211             } else {
1212                 $fn->("The detected tools didn't match the platform\n");
1213             }
1214         }
1215         last;
1216     }
1217 }
1218
1219 push @{$config{defines}}, "NDEBUG"    if $config{build_type} eq "release";
1220
1221 if ($target =~ /^mingw/ && `$config{CC} --target-help 2>&1` =~ m/-mno-cygwin/m)
1222         {
1223         push @{$config{cflags}}, "-mno-cygwin";
1224         push @{$config{cxxflags}}, "-mno-cygwin" if $config{CXX};
1225         push @{$config{shared_ldflag}}, "-mno-cygwin";
1226         }
1227
1228 if ($target =~ /linux.*-mips/ && !$disabled{asm}
1229         && !grep { $_ !~ /-m(ips|arch=)/ } (@{$user{CFLAGS}},
1230                                             @{$useradd{CFLAGS}})) {
1231         # minimally required architecture flags for assembly modules
1232         my $value;
1233         $value = '-mips2' if ($target =~ /mips32/);
1234         $value = '-mips3' if ($target =~ /mips64/);
1235         unshift @{$config{cflags}}, $value;
1236         unshift @{$config{cxxflags}}, $value if $config{CXX};
1237 }
1238
1239 # If threads aren't disabled, check how possible they are
1240 unless ($disabled{threads}) {
1241     if ($auto_threads) {
1242         # Enabled by default, disable it forcibly if unavailable
1243         if ($target{thread_scheme} eq "(unknown)") {
1244             $disabled{threads} = "unavailable";
1245         }
1246     } else {
1247         # The user chose to enable threads explicitly, let's see
1248         # if there's a chance that's possible
1249         if ($target{thread_scheme} eq "(unknown)") {
1250             # If the user asked for "threads" and we don't have internal
1251             # knowledge how to do it, [s]he is expected to provide any
1252             # system-dependent compiler options that are necessary.  We
1253             # can't truly check that the given options are correct, but
1254             # we expect the user to know what [s]He is doing.
1255             if (!@{$user{CFLAGS}} && !@{$useradd{CFLAGS}}
1256                     && !@{$user{CPPDEFINES}} && !@{$useradd{CPPDEFINES}}) {
1257                 die "You asked for multi-threading support, but didn't\n"
1258                     ,"provide any system-specific compiler options\n";
1259             }
1260         }
1261     }
1262 }
1263
1264 # If threads still aren't disabled, add a C macro to ensure the source
1265 # code knows about it.  Any other flag is taken care of by the configs.
1266 unless($disabled{threads}) {
1267     push @{$config{openssl_thread_defines}}, "OPENSSL_THREADS";
1268 }
1269
1270 # With "deprecated" disable all deprecated features.
1271 if (defined($disabled{"deprecated"})) {
1272         $config{api} = $maxapi;
1273 }
1274
1275 my $no_shared_warn=0;
1276 if ($target{shared_target} eq "")
1277         {
1278         $no_shared_warn = 1
1279             if (!$disabled{shared} || !$disabled{"dynamic-engine"});
1280         $disabled{shared} = "no-shared-target";
1281         $disabled{pic} = $disabled{shared} = $disabled{"dynamic-engine"} =
1282             "no-shared-target";
1283         }
1284
1285 if ($disabled{"dynamic-engine"}) {
1286         push @{$config{openssl_other_defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
1287         $config{dynamic_engines} = 0;
1288 } else {
1289         push @{$config{openssl_other_defines}}, "OPENSSL_NO_STATIC_ENGINE";
1290         $config{dynamic_engines} = 1;
1291 }
1292
1293 unless ($disabled{asan}) {
1294     push @{$config{cflags}}, "-fsanitize=address";
1295     push @{$config{cxxflags}}, "-fsanitize=address" if $config{CXX};
1296 }
1297
1298 unless ($disabled{ubsan}) {
1299     # -DPEDANTIC or -fnosanitize=alignment may also be required on some
1300     # platforms.
1301     push @{$config{cflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all";
1302     push @{$config{cxxflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all"
1303         if $config{CXX};
1304 }
1305
1306 unless ($disabled{msan}) {
1307   push @{$config{cflags}}, "-fsanitize=memory";
1308   push @{$config{cxxflags}}, "-fsanitize=memory" if $config{CXX};
1309 }
1310
1311 unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
1312         && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
1313     push @{$config{cflags}}, "-fno-omit-frame-pointer", "-g";
1314     push @{$config{cxxflags}}, "-fno-omit-frame-pointer", "-g" if $config{CXX};
1315 }
1316 #
1317 # Platform fix-ups
1318 #
1319
1320 # This saves the build files from having to check
1321 if ($disabled{pic})
1322         {
1323         foreach (qw(shared_cflag shared_cxxflag shared_cppflag
1324                     shared_defines shared_includes shared_ldflag
1325                     module_cflags module_cxxflags module_cppflags
1326                     module_defines module_includes module_lflags))
1327                 {
1328                 delete $config{$_};
1329                 $target{$_} = "";
1330                 }
1331         }
1332 else
1333         {
1334         push @{$config{lib_defines}}, "OPENSSL_PIC";
1335         }
1336
1337 if ($target{sys_id} ne "")
1338         {
1339         push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
1340         }
1341
1342 unless ($disabled{asm}) {
1343     $target{cpuid_asm_src}=$table{DEFAULTS}->{cpuid_asm_src} if ($config{processor} eq "386");
1344     push @{$config{lib_defines}}, "OPENSSL_CPUID_OBJ" if ($target{cpuid_asm_src} ne "mem_clr.c");
1345
1346     $target{bn_asm_src} =~ s/\w+-gf2m.c// if (defined($disabled{ec2m}));
1347
1348     # bn-586 is the only one implementing bn_*_part_words
1349     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_PART_WORDS" if ($target{bn_asm_src} =~ /bn-586/);
1350     push @{$config{lib_defines}}, "OPENSSL_IA32_SSE2" if (!$disabled{sse2} && $target{bn_asm_src} =~ /86/);
1351
1352     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT" if ($target{bn_asm_src} =~ /-mont/);
1353     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT5" if ($target{bn_asm_src} =~ /-mont5/);
1354     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_GF2m" if ($target{bn_asm_src} =~ /-gf2m/);
1355
1356     if ($target{sha1_asm_src}) {
1357         push @{$config{lib_defines}}, "SHA1_ASM"   if ($target{sha1_asm_src} =~ /sx86/ || $target{sha1_asm_src} =~ /sha1/);
1358         push @{$config{lib_defines}}, "SHA256_ASM" if ($target{sha1_asm_src} =~ /sha256/);
1359         push @{$config{lib_defines}}, "SHA512_ASM" if ($target{sha1_asm_src} =~ /sha512/);
1360     }
1361     if ($target{rc4_asm_src} ne $table{DEFAULTS}->{rc4_asm_src}) {
1362         push @{$config{lib_defines}}, "RC4_ASM";
1363     }
1364     if ($target{md5_asm_src}) {
1365         push @{$config{lib_defines}}, "MD5_ASM";
1366     }
1367     $target{cast_asm_src}=$table{DEFAULTS}->{cast_asm_src} unless $disabled{pic}; # CAST assembler is not PIC
1368     if ($target{rmd160_asm_src}) {
1369         push @{$config{lib_defines}}, "RMD160_ASM";
1370     }
1371     if ($target{aes_asm_src}) {
1372         push @{$config{lib_defines}}, "AES_ASM" if ($target{aes_asm_src} =~ m/\baes-/);;
1373         # aes-ctr.fake is not a real file, only indication that assembler
1374         # module implements AES_ctr32_encrypt...
1375         push @{$config{lib_defines}}, "AES_CTR_ASM" if ($target{aes_asm_src} =~ s/\s*aes-ctr\.fake//);
1376         # aes-xts.fake indicates presence of AES_xts_[en|de]crypt...
1377         push @{$config{lib_defines}}, "AES_XTS_ASM" if ($target{aes_asm_src} =~ s/\s*aes-xts\.fake//);
1378         $target{aes_asm_src} =~ s/\s*(vpaes|aesni)-x86\.s//g if ($disabled{sse2});
1379         push @{$config{lib_defines}}, "VPAES_ASM" if ($target{aes_asm_src} =~ m/vpaes/);
1380         push @{$config{lib_defines}}, "BSAES_ASM" if ($target{aes_asm_src} =~ m/bsaes/);
1381     }
1382     if ($target{wp_asm_src} =~ /mmx/) {
1383         if ($config{processor} eq "386") {
1384             $target{wp_asm_src}=$table{DEFAULTS}->{wp_asm_src};
1385         } elsif (!$disabled{"whirlpool"}) {
1386             push @{$config{lib_defines}}, "WHIRLPOOL_ASM";
1387         }
1388     }
1389     if ($target{modes_asm_src} =~ /ghash-/) {
1390         push @{$config{lib_defines}}, "GHASH_ASM";
1391     }
1392     if ($target{ec_asm_src} =~ /ecp_nistz256/) {
1393         push @{$config{lib_defines}}, "ECP_NISTZ256_ASM";
1394     }
1395     if ($target{ec_asm_src} =~ /x25519/) {
1396         push @{$config{lib_defines}}, "X25519_ASM";
1397     }
1398     if ($target{padlock_asm_src} ne $table{DEFAULTS}->{padlock_asm_src}) {
1399         push @{$config{lib_defines}}, "PADLOCK_ASM";
1400     }
1401     if ($target{poly1305_asm_src} ne "") {
1402         push @{$config{lib_defines}}, "POLY1305_ASM";
1403     }
1404 }
1405
1406 my %predefined = compiler_predefined($config{CC});
1407
1408 # Check for makedepend capabilities.
1409 if (!$disabled{makedepend}) {
1410     if ($config{target} =~ /^(VC|vms)-/) {
1411         # For VC- and vms- targets, there's nothing more to do here.  The
1412         # functionality is hard coded in the corresponding build files for
1413         # cl (Windows) and CC/DECC (VMS).
1414     } elsif ($predefined{__GNUC__} >= 3) {
1415         # We know that GNU C version 3 and up as well as all clang
1416         # versions support dependency generation
1417         $config{makedepprog} = "\$(CROSS_COMPILE)$config{CC}";
1418     } else {
1419         # In all other cases, we look for 'makedepend', and disable the
1420         # capability if not found.
1421         $config{makedepprog} = which('makedepend');
1422         $disabled{makedepend} = "unavailable" unless $config{makedepprog};
1423     }
1424 }
1425
1426
1427 # Deal with bn_ops ###################################################
1428
1429 $config{bn_ll}                  =0;
1430 $config{export_var_as_fn}       =0;
1431 my $def_int="unsigned int";
1432 $config{rc4_int}                =$def_int;
1433 ($config{b64l},$config{b64},$config{b32})=(0,0,1);
1434
1435 my $count = 0;
1436 foreach (sort split(/\s+/,$target{bn_ops})) {
1437     $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
1438     $config{export_var_as_fn}=1                 if $_ eq 'EXPORT_VAR_AS_FN';
1439     $config{bn_ll}=1                            if $_ eq 'BN_LLONG';
1440     $config{rc4_int}="unsigned char"            if $_ eq 'RC4_CHAR';
1441     ($config{b64l},$config{b64},$config{b32})
1442         =(0,1,0)                                if $_ eq 'SIXTY_FOUR_BIT';
1443     ($config{b64l},$config{b64},$config{b32})
1444         =(1,0,0)                                if $_ eq 'SIXTY_FOUR_BIT_LONG';
1445     ($config{b64l},$config{b64},$config{b32})
1446         =(0,0,1)                                if $_ eq 'THIRTY_TWO_BIT';
1447 }
1448 die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
1449     if $count > 1;
1450
1451
1452 # Hack cflags for better warnings (dev option) #######################
1453
1454 # "Stringify" the C and C++ flags string.  This permits it to be made part of
1455 # a string and works as well on command lines.
1456 $config{cflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1457                         @{$config{cflags}} ];
1458 $config{cxxflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1459                           @{$config{cxxflags}} ] if $config{CXX};
1460
1461 if (defined($config{api})) {
1462     $config{openssl_api_defines} = [ "OPENSSL_MIN_API=".$apitable->{$config{api}} ];
1463     my $apiflag = sprintf("OPENSSL_API_COMPAT=%s", $apitable->{$config{api}});
1464     push @{$config{defines}}, $apiflag;
1465 }
1466
1467 if (defined($predefined{__clang__}) && !$disabled{asm}) {
1468     push @{$config{cflags}}, "-Qunused-arguments";
1469     push @{$config{cxxflags}}, "-Qunused-arguments" if $config{CXX};
1470 }
1471
1472 if ($strict_warnings)
1473         {
1474         my $wopt;
1475         my $gccver = $predefined{__GNUC__} // -1;
1476
1477         die "ERROR --strict-warnings requires gcc[>=4] or gcc-alike"
1478             unless $gccver >= 4;
1479         $gcc_devteam_warn .= " -Wmisleading-indentation" if $gccver >= 6;
1480         foreach $wopt (split /\s+/, $gcc_devteam_warn)
1481                 {
1482                 push @{$config{cflags}}, $wopt
1483                         unless grep { $_ eq $wopt } @{$config{cflags}};
1484                 push @{$config{cxxflags}}, $wopt
1485                         if ($config{CXX}
1486                             && !grep { $_ eq $wopt } @{$config{cxxflags}});
1487                 }
1488         if (defined($predefined{__clang__}))
1489                 {
1490                 foreach $wopt (split /\s+/, $clang_devteam_warn)
1491                         {
1492                         push @{$config{cflags}}, $wopt
1493                                 unless grep { $_ eq $wopt } @{$config{cflags}};
1494                         push @{$config{cxxflags}}, $wopt
1495                                 if ($config{CXX}
1496                                     && !grep { $_ eq $wopt } @{$config{cxxflags}});
1497                         }
1498                 }
1499         }
1500
1501 unless ($disabled{"crypto-mdebug-backtrace"})
1502         {
1503         foreach my $wopt (split /\s+/, $memleak_devteam_backtrace)
1504                 {
1505                 push @{$config{cflags}}, $wopt
1506                         unless grep { $_ eq $wopt } @{$config{cflags}};
1507                 push @{$config{cxxflags}}, $wopt
1508                         if ($config{CXX}
1509                             && !grep { $_ eq $wopt } @{$config{cxxflags}});
1510                 }
1511         if ($target =~ /^BSD-/)
1512                 {
1513                 push @{$config{ex_libs}}, "-lexecinfo";
1514                 }
1515         }
1516
1517 unless ($disabled{afalgeng}) {
1518     $config{afalgeng}="";
1519     if (grep { $_ eq 'afalgeng' } @{$target{enable}}) {
1520         my $minver = 4*10000 + 1*100 + 0;
1521         if ($config{CROSS_COMPILE} eq "") {
1522             my $verstr = `uname -r`;
1523             my ($ma, $mi1, $mi2) = split("\\.", $verstr);
1524             ($mi2) = $mi2 =~ /(\d+)/;
1525             my $ver = $ma*10000 + $mi1*100 + $mi2;
1526             if ($ver < $minver) {
1527                 $disabled{afalgeng} = "too-old-kernel";
1528             } else {
1529                 push @{$config{engdirs}}, "afalg";
1530             }
1531         } else {
1532             $disabled{afalgeng} = "cross-compiling";
1533         }
1534     } else {
1535         $disabled{afalgeng}  = "not-linux";
1536     }
1537 }
1538
1539 push @{$config{openssl_other_defines}}, "OPENSSL_NO_AFALGENG" if ($disabled{afalgeng});
1540
1541 # Finish up %config by appending things the user gave us on the command line
1542 # apart from "make variables"
1543 foreach (keys %useradd) {
1544     # The must all be lists, so we assert that here
1545     die "internal error: \$useradd{$_} isn't an ARRAY\n"
1546         unless ref $useradd{$_} eq 'ARRAY';
1547
1548     if (defined $config{$_}) {
1549         push @{$config{$_}}, @{$useradd{$_}};
1550     } else {
1551         $config{$_} = [ @{$useradd{$_}} ];
1552     }
1553 }
1554
1555 # ALL MODIFICATIONS TO %config and %target MUST BE DONE FROM HERE ON
1556
1557 # If we use the unified build, collect information from build.info files
1558 my %unified_info = ();
1559
1560 my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
1561 if ($builder eq "unified") {
1562     use with_fallback qw(Text::Template);
1563
1564     sub cleandir {
1565         my $base = shift;
1566         my $dir = shift;
1567         my $relativeto = shift || ".";
1568
1569         $dir = catdir($base,$dir) unless isabsolute($dir);
1570
1571         # Make sure the directories we're building in exists
1572         mkpath($dir);
1573
1574         my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
1575         #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
1576         return $res;
1577     }
1578
1579     sub cleanfile {
1580         my $base = shift;
1581         my $file = shift;
1582         my $relativeto = shift || ".";
1583
1584         $file = catfile($base,$file) unless isabsolute($file);
1585
1586         my $d = dirname($file);
1587         my $f = basename($file);
1588
1589         # Make sure the directories we're building in exists
1590         mkpath($d);
1591
1592         my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
1593         #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
1594         return $res;
1595     }
1596
1597     # Store the name of the template file we will build the build file from
1598     # in %config.  This may be useful for the build file itself.
1599     my @build_file_template_names =
1600         ( $builder_platform."-".$target{build_file}.".tmpl",
1601           $target{build_file}.".tmpl" );
1602     my @build_file_templates = ();
1603
1604     # First, look in the user provided directory, if given
1605     if (defined env($local_config_envname)) {
1606         @build_file_templates =
1607             map {
1608                 if ($^O eq 'VMS') {
1609                     # VMS environment variables are logical names,
1610                     # which can be used as is
1611                     $local_config_envname . ':' . $_;
1612                 } else {
1613                     catfile(env($local_config_envname), $_);
1614                 }
1615             }
1616             @build_file_template_names;
1617     }
1618     # Then, look in our standard directory
1619     push @build_file_templates,
1620         ( map { cleanfile($srcdir, catfile("Configurations", $_), $blddir) }
1621           @build_file_template_names );
1622
1623     my $build_file_template;
1624     for $_ (@build_file_templates) {
1625         $build_file_template = $_;
1626         last if -f $build_file_template;
1627
1628         $build_file_template = undef;
1629     }
1630     if (!defined $build_file_template) {
1631         die "*** Couldn't find any of:\n", join("\n", @build_file_templates), "\n";
1632     }
1633     $config{build_file_templates}
1634       = [ $build_file_template,
1635           cleanfile($srcdir, catfile("Configurations", "common.tmpl"),
1636                     $blddir) ];
1637
1638     my @build_infos = ( [ ".", "build.info" ] );
1639     foreach (@{$config{dirs}}) {
1640         push @build_infos, [ $_, "build.info" ]
1641             if (-f catfile($srcdir, $_, "build.info"));
1642     }
1643     foreach (@{$config{sdirs}}) {
1644         push @build_infos, [ catdir("crypto", $_), "build.info" ]
1645             if (-f catfile($srcdir, "crypto", $_, "build.info"));
1646     }
1647     foreach (@{$config{engdirs}}) {
1648         push @build_infos, [ catdir("engines", $_), "build.info" ]
1649             if (-f catfile($srcdir, "engines", $_, "build.info"));
1650     }
1651     foreach (@{$config{tdirs}}) {
1652         push @build_infos, [ catdir("test", $_), "build.info" ]
1653             if (-f catfile($srcdir, "test", $_, "build.info"));
1654     }
1655
1656     $config{build_infos} = [ ];
1657
1658     my %ordinals = ();
1659     foreach (@build_infos) {
1660         my $sourced = catdir($srcdir, $_->[0]);
1661         my $buildd = catdir($blddir, $_->[0]);
1662
1663         mkpath($buildd);
1664
1665         my $f = $_->[1];
1666         # The basic things we're trying to build
1667         my @programs = ();
1668         my @programs_install = ();
1669         my @libraries = ();
1670         my @libraries_install = ();
1671         my @engines = ();
1672         my @engines_install = ();
1673         my @scripts = ();
1674         my @scripts_install = ();
1675         my @extra = ();
1676         my @overrides = ();
1677         my @intermediates = ();
1678         my @rawlines = ();
1679
1680         my %sources = ();
1681         my %shared_sources = ();
1682         my %includes = ();
1683         my %depends = ();
1684         my %renames = ();
1685         my %sharednames = ();
1686         my %generate = ();
1687
1688         # We want to detect configdata.pm in the source tree, so we
1689         # don't use it if the build tree is different.
1690         my $src_configdata = cleanfile($srcdir, "configdata.pm", $blddir);
1691
1692         push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
1693         my $template =
1694             Text::Template->new(TYPE => 'FILE',
1695                                 SOURCE => catfile($sourced, $f),
1696                                 PREPEND => qq{use lib "$FindBin::Bin/util/perl";});
1697         die "Something went wrong with $sourced/$f: $!\n" unless $template;
1698         my @text =
1699             split /^/m,
1700             $template->fill_in(HASH => { config => \%config,
1701                                          target => \%target,
1702                                          disabled => \%disabled,
1703                                          withargs => \%withargs,
1704                                          builddir => abs2rel($buildd, $blddir),
1705                                          sourcedir => abs2rel($sourced, $blddir),
1706                                          buildtop => abs2rel($blddir, $blddir),
1707                                          sourcetop => abs2rel($srcdir, $blddir) },
1708                                DELIMITERS => [ "{-", "-}" ]);
1709
1710         # The top item of this stack has the following values
1711         # -2 positive already run and we found ELSE (following ELSIF should fail)
1712         # -1 positive already run (skip until ENDIF)
1713         # 0 negatives so far (if we're at a condition, check it)
1714         # 1 last was positive (don't skip lines until next ELSE, ELSIF or ENDIF)
1715         # 2 positive ELSE (following ELSIF should fail)
1716         my @skip = ();
1717         collect_information(
1718             collect_from_array([ @text ],
1719                                qr/\\$/ => sub { my $l1 = shift; my $l2 = shift;
1720                                                 $l1 =~ s/\\$//; $l1.$l2 }),
1721             # Info we're looking for
1722             qr/^\s*IF\[((?:\\.|[^\\\]])*)\]\s*$/
1723             => sub {
1724                 if (! @skip || $skip[$#skip] > 0) {
1725                     push @skip, !! $1;
1726                 } else {
1727                     push @skip, -1;
1728                 }
1729             },
1730             qr/^\s*ELSIF\[((?:\\.|[^\\\]])*)\]\s*$/
1731             => sub { die "ELSIF out of scope" if ! @skip;
1732                      die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
1733                      $skip[$#skip] = -1 if $skip[$#skip] != 0;
1734                      $skip[$#skip] = !! $1
1735                          if $skip[$#skip] == 0; },
1736             qr/^\s*ELSE\s*$/
1737             => sub { die "ELSE out of scope" if ! @skip;
1738                      $skip[$#skip] = -2 if $skip[$#skip] != 0;
1739                      $skip[$#skip] = 2 if $skip[$#skip] == 0; },
1740             qr/^\s*ENDIF\s*$/
1741             => sub { die "ENDIF out of scope" if ! @skip;
1742                      pop @skip; },
1743             qr/^\s*PROGRAMS(_NO_INST)?\s*=\s*(.*)\s*$/
1744             => sub {
1745                 if (!@skip || $skip[$#skip] > 0) {
1746                     my $install = $1;
1747                     my @x = tokenize($2);
1748                     push @programs, @x;
1749                     push @programs_install, @x unless $install;
1750                 }
1751             },
1752             qr/^\s*LIBS(_NO_INST)?\s*=\s*(.*)\s*$/
1753             => sub {
1754                 if (!@skip || $skip[$#skip] > 0) {
1755                     my $install = $1;
1756                     my @x = tokenize($2);
1757                     push @libraries, @x;
1758                     push @libraries_install, @x unless $install;
1759                 }
1760             },
1761             qr/^\s*ENGINES(_NO_INST)?\s*=\s*(.*)\s*$/
1762             => sub {
1763                 if (!@skip || $skip[$#skip] > 0) {
1764                     my $install = $1;
1765                     my @x = tokenize($2);
1766                     push @engines, @x;
1767                     push @engines_install, @x unless $install;
1768                 }
1769             },
1770             qr/^\s*SCRIPTS(_NO_INST)?\s*=\s*(.*)\s*$/
1771             => sub {
1772                 if (!@skip || $skip[$#skip] > 0) {
1773                     my $install = $1;
1774                     my @x = tokenize($2);
1775                     push @scripts, @x;
1776                     push @scripts_install, @x unless $install;
1777                 }
1778             },
1779             qr/^\s*EXTRA\s*=\s*(.*)\s*$/
1780             => sub { push @extra, tokenize($1)
1781                          if !@skip || $skip[$#skip] > 0 },
1782             qr/^\s*OVERRIDES\s*=\s*(.*)\s*$/
1783             => sub { push @overrides, tokenize($1)
1784                          if !@skip || $skip[$#skip] > 0 },
1785
1786             qr/^\s*ORDINALS\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/,
1787             => sub { push @{$ordinals{$1}}, tokenize($2)
1788                          if !@skip || $skip[$#skip] > 0 },
1789             qr/^\s*SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1790             => sub { push @{$sources{$1}}, tokenize($2)
1791                          if !@skip || $skip[$#skip] > 0 },
1792             qr/^\s*SHARED_SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1793             => sub { push @{$shared_sources{$1}}, tokenize($2)
1794                          if !@skip || $skip[$#skip] > 0 },
1795             qr/^\s*INCLUDE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1796             => sub { push @{$includes{$1}}, tokenize($2)
1797                          if !@skip || $skip[$#skip] > 0 },
1798             qr/^\s*DEPEND\[((?:\\.|[^\\\]])*)\]\s*=\s*(.*)\s*$/
1799             => sub { push @{$depends{$1}}, tokenize($2)
1800                          if !@skip || $skip[$#skip] > 0 },
1801             qr/^\s*GENERATE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1802             => sub { push @{$generate{$1}}, $2
1803                          if !@skip || $skip[$#skip] > 0 },
1804             qr/^\s*RENAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1805             => sub { push @{$renames{$1}}, tokenize($2)
1806                          if !@skip || $skip[$#skip] > 0 },
1807             qr/^\s*SHARED_NAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1808             => sub { push @{$sharednames{$1}}, tokenize($2)
1809                          if !@skip || $skip[$#skip] > 0 },
1810             qr/^\s*BEGINRAW\[((?:\\.|[^\\\]])+)\]\s*$/
1811             => sub {
1812                 my $lineiterator = shift;
1813                 my $target_kind = $1;
1814                 while (defined $lineiterator->()) {
1815                     s|\R$||;
1816                     if (/^\s*ENDRAW\[((?:\\.|[^\\\]])+)\]\s*$/) {
1817                         die "ENDRAW doesn't match BEGINRAW"
1818                             if $1 ne $target_kind;
1819                         last;
1820                     }
1821                     next if @skip && $skip[$#skip] <= 0;
1822                     push @rawlines,  $_
1823                         if ($target_kind eq $target{build_file}
1824                             || $target_kind eq $target{build_file}."(".$builder_platform.")");
1825                 }
1826             },
1827             qr/^\s*(?:#.*)?$/ => sub { },
1828             "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
1829             "BEFORE" => sub {
1830                 if ($buildinfo_debug) {
1831                     print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
1832                     print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1833                 }
1834             },
1835             "AFTER" => sub {
1836                 if ($buildinfo_debug) {
1837                     print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1838                 }
1839             },
1840             );
1841         die "runaway IF?" if (@skip);
1842
1843         foreach (keys %renames) {
1844             die "$_ renamed to more than one thing: "
1845                 ,join(" ", @{$renames{$_}}),"\n"
1846                 if scalar @{$renames{$_}} > 1;
1847             my $dest = cleanfile($buildd, $_, $blddir);
1848             my $to = cleanfile($buildd, $renames{$_}->[0], $blddir);
1849             die "$dest renamed to more than one thing: "
1850                 ,$unified_info{rename}->{$dest}, $to
1851                 unless !defined($unified_info{rename}->{$dest})
1852                 or $unified_info{rename}->{$dest} eq $to;
1853             $unified_info{rename}->{$dest} = $to;
1854         }
1855
1856         foreach (@programs) {
1857             my $program = cleanfile($buildd, $_, $blddir);
1858             if ($unified_info{rename}->{$program}) {
1859                 $program = $unified_info{rename}->{$program};
1860             }
1861             $unified_info{programs}->{$program} = 1;
1862         }
1863
1864         foreach (@programs_install) {
1865             my $program = cleanfile($buildd, $_, $blddir);
1866             if ($unified_info{rename}->{$program}) {
1867                 $program = $unified_info{rename}->{$program};
1868             }
1869             $unified_info{install}->{programs}->{$program} = 1;
1870         }
1871
1872         foreach (@libraries) {
1873             my $library = cleanfile($buildd, $_, $blddir);
1874             if ($unified_info{rename}->{$library}) {
1875                 $library = $unified_info{rename}->{$library};
1876             }
1877             $unified_info{libraries}->{$library} = 1;
1878         }
1879
1880         foreach (@libraries_install) {
1881             my $library = cleanfile($buildd, $_, $blddir);
1882             if ($unified_info{rename}->{$library}) {
1883                 $library = $unified_info{rename}->{$library};
1884             }
1885             $unified_info{install}->{libraries}->{$library} = 1;
1886         }
1887
1888         die <<"EOF" if scalar @engines and !$config{dynamic_engines};
1889 ENGINES can only be used if configured with 'dynamic-engine'.
1890 This is usually a fault in a build.info file.
1891 EOF
1892         foreach (@engines) {
1893             my $library = cleanfile($buildd, $_, $blddir);
1894             if ($unified_info{rename}->{$library}) {
1895                 $library = $unified_info{rename}->{$library};
1896             }
1897             $unified_info{engines}->{$library} = 1;
1898         }
1899
1900         foreach (@engines_install) {
1901             my $library = cleanfile($buildd, $_, $blddir);
1902             if ($unified_info{rename}->{$library}) {
1903                 $library = $unified_info{rename}->{$library};
1904             }
1905             $unified_info{install}->{engines}->{$library} = 1;
1906         }
1907
1908         foreach (@scripts) {
1909             my $script = cleanfile($buildd, $_, $blddir);
1910             if ($unified_info{rename}->{$script}) {
1911                 $script = $unified_info{rename}->{$script};
1912             }
1913             $unified_info{scripts}->{$script} = 1;
1914         }
1915
1916         foreach (@scripts_install) {
1917             my $script = cleanfile($buildd, $_, $blddir);
1918             if ($unified_info{rename}->{$script}) {
1919                 $script = $unified_info{rename}->{$script};
1920             }
1921             $unified_info{install}->{scripts}->{$script} = 1;
1922         }
1923
1924         foreach (@extra) {
1925             my $extra = cleanfile($buildd, $_, $blddir);
1926             $unified_info{extra}->{$extra} = 1;
1927         }
1928
1929         foreach (@overrides) {
1930             my $override = cleanfile($buildd, $_, $blddir);
1931             $unified_info{overrides}->{$override} = 1;
1932         }
1933
1934         push @{$unified_info{rawlines}}, @rawlines;
1935
1936         unless ($disabled{shared}) {
1937             # Check sharednames.
1938             foreach (keys %sharednames) {
1939                 my $dest = cleanfile($buildd, $_, $blddir);
1940                 if ($unified_info{rename}->{$dest}) {
1941                     $dest = $unified_info{rename}->{$dest};
1942                 }
1943                 die "shared_name for $dest with multiple values: "
1944                     ,join(" ", @{$sharednames{$_}}),"\n"
1945                     if scalar @{$sharednames{$_}} > 1;
1946                 my $to = cleanfile($buildd, $sharednames{$_}->[0], $blddir);
1947                 die "shared_name found for a library $dest that isn't defined\n"
1948                     unless $unified_info{libraries}->{$dest};
1949                 die "shared_name for $dest with multiple values: "
1950                     ,$unified_info{sharednames}->{$dest}, ", ", $to
1951                     unless !defined($unified_info{sharednames}->{$dest})
1952                     or $unified_info{sharednames}->{$dest} eq $to;
1953                 $unified_info{sharednames}->{$dest} = $to;
1954             }
1955
1956             # Additionally, we set up sharednames for libraries that don't
1957             # have any, as themselves.  Only for libraries that aren't
1958             # explicitly static.
1959             foreach (grep !/\.a$/, keys %{$unified_info{libraries}}) {
1960                 if (!defined $unified_info{sharednames}->{$_}) {
1961                     $unified_info{sharednames}->{$_} = $_
1962                 }
1963             }
1964
1965             # Check that we haven't defined any library as both shared and
1966             # explicitly static.  That is forbidden.
1967             my @doubles = ();
1968             foreach (grep /\.a$/, keys %{$unified_info{libraries}}) {
1969                 (my $l = $_) =~ s/\.a$//;
1970                 push @doubles, $l if defined $unified_info{sharednames}->{$l};
1971             }
1972             die "these libraries are both explicitly static and shared:\n  ",
1973                 join(" ", @doubles), "\n"
1974                 if @doubles;
1975         }
1976
1977         foreach (keys %sources) {
1978             my $dest = $_;
1979             my $ddest = cleanfile($buildd, $_, $blddir);
1980             if ($unified_info{rename}->{$ddest}) {
1981                 $ddest = $unified_info{rename}->{$ddest};
1982             }
1983             foreach (@{$sources{$dest}}) {
1984                 my $s = cleanfile($sourced, $_, $blddir);
1985
1986                 # If it isn't in the source tree, we assume it's generated
1987                 # in the build tree
1988                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
1989                     $s = cleanfile($buildd, $_, $blddir);
1990                 }
1991                 # We recognise C++, C and asm files
1992                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
1993                     my $o = $_;
1994                     $o =~ s/\.[csS]$/.o/; # C and assembler
1995                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
1996                     $o = cleanfile($buildd, $o, $blddir);
1997                     $unified_info{sources}->{$ddest}->{$o} = 1;
1998                     $unified_info{sources}->{$o}->{$s} = 1;
1999                 } elsif ($s =~ /\.rc$/) {
2000                     # We also recognise resource files
2001                     my $o = $_;
2002                     $o =~ s/\.rc$/.res/; # Resource configuration
2003                     my $o = cleanfile($buildd, $o, $blddir);
2004                     $unified_info{sources}->{$ddest}->{$o} = 1;
2005                     $unified_info{sources}->{$o}->{$s} = 1;
2006                 } else {
2007                     $unified_info{sources}->{$ddest}->{$s} = 1;
2008                 }
2009             }
2010         }
2011
2012         foreach (keys %shared_sources) {
2013             my $dest = $_;
2014             my $ddest = cleanfile($buildd, $_, $blddir);
2015             if ($unified_info{rename}->{$ddest}) {
2016                 $ddest = $unified_info{rename}->{$ddest};
2017             }
2018             foreach (@{$shared_sources{$dest}}) {
2019                 my $s = cleanfile($sourced, $_, $blddir);
2020
2021                 # If it isn't in the source tree, we assume it's generated
2022                 # in the build tree
2023                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
2024                     $s = cleanfile($buildd, $_, $blddir);
2025                 }
2026
2027                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2028                     # We recognise C++, C and asm files
2029                     my $o = $_;
2030                     $o =~ s/\.[csS]$/.o/; # C and assembler
2031                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2032                     $o = cleanfile($buildd, $o, $blddir);
2033                     $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2034                     $unified_info{sources}->{$o}->{$s} = 1;
2035                 } elsif ($s =~ /\.rc$/) {
2036                     # We also recognise resource files
2037                     my $o = $_;
2038                     $o =~ s/\.rc$/.res/; # Resource configuration
2039                     my $o = cleanfile($buildd, $o, $blddir);
2040                     $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2041                     $unified_info{sources}->{$o}->{$s} = 1;
2042                 } elsif ($s =~ /\.(def|map|opt)$/) {
2043                     # We also recognise .def / .map / .opt files
2044                     # We know they are generated files
2045                     my $def = cleanfile($buildd, $s, $blddir);
2046                     $unified_info{shared_sources}->{$ddest}->{$def} = 1;
2047                 } else {
2048                     die "unrecognised source file type for shared library: $s\n";
2049                 }
2050             }
2051         }
2052
2053         foreach (keys %generate) {
2054             my $dest = $_;
2055             my $ddest = cleanfile($buildd, $_, $blddir);
2056             if ($unified_info{rename}->{$ddest}) {
2057                 $ddest = $unified_info{rename}->{$ddest};
2058             }
2059             die "more than one generator for $dest: "
2060                     ,join(" ", @{$generate{$_}}),"\n"
2061                     if scalar @{$generate{$_}} > 1;
2062             my @generator = split /\s+/, $generate{$dest}->[0];
2063             $generator[0] = cleanfile($sourced, $generator[0], $blddir),
2064             $unified_info{generate}->{$ddest} = [ @generator ];
2065         }
2066
2067         foreach (keys %depends) {
2068             my $dest = $_;
2069             my $ddest = $dest eq "" ? "" : cleanfile($sourced, $_, $blddir);
2070
2071             # If the destination doesn't exist in source, it can only be
2072             # a generated file in the build tree.
2073             if ($ddest ne "" && ($ddest eq $src_configdata || ! -f $ddest)) {
2074                 $ddest = cleanfile($buildd, $_, $blddir);
2075                 if ($unified_info{rename}->{$ddest}) {
2076                     $ddest = $unified_info{rename}->{$ddest};
2077                 }
2078             }
2079             foreach (@{$depends{$dest}}) {
2080                 my $d = cleanfile($sourced, $_, $blddir);
2081
2082                 # If we know it's generated, or assume it is because we can't
2083                 # find it in the source tree, we set file we depend on to be
2084                 # in the build tree rather than the source tree, and assume
2085                 # and that there are lines to build it in a BEGINRAW..ENDRAW
2086                 # section or in the Makefile template.
2087                 if ($d eq $src_configdata
2088                     || ! -f $d
2089                     || (grep { $d eq $_ }
2090                         map { cleanfile($srcdir, $_, $blddir) }
2091                         grep { /\.h$/ } keys %{$unified_info{generate}})) {
2092                     $d = cleanfile($buildd, $_, $blddir);
2093                 }
2094                 # Take note if the file to depend on is being renamed
2095                 # Take extra care with files ending with .a, they should
2096                 # be treated without that extension, and the extension
2097                 # should be added back after treatment.
2098                 $d =~ /(\.a)?$/;
2099                 my $e = $1 // "";
2100                 $d = $`;
2101                 if ($unified_info{rename}->{$d}) {
2102                     $d = $unified_info{rename}->{$d};
2103                 }
2104                 $d .= $e;
2105                 $unified_info{depends}->{$ddest}->{$d} = 1;
2106             }
2107         }
2108
2109         foreach (keys %includes) {
2110             my $dest = $_;
2111             my $ddest = cleanfile($sourced, $_, $blddir);
2112
2113             # If the destination doesn't exist in source, it can only be
2114             # a generated file in the build tree.
2115             if ($ddest eq $src_configdata || ! -f $ddest) {
2116                 $ddest = cleanfile($buildd, $_, $blddir);
2117                 if ($unified_info{rename}->{$ddest}) {
2118                     $ddest = $unified_info{rename}->{$ddest};
2119                 }
2120             }
2121             foreach (@{$includes{$dest}}) {
2122                 my $is = cleandir($sourced, $_, $blddir);
2123                 my $ib = cleandir($buildd, $_, $blddir);
2124                 push @{$unified_info{includes}->{$ddest}->{source}}, $is
2125                     unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
2126                 push @{$unified_info{includes}->{$ddest}->{build}}, $ib
2127                     unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
2128             }
2129         }
2130     }
2131
2132     my $ordinals_text = join(', ', sort keys %ordinals);
2133     warn <<"EOF" if $ordinals_text;
2134
2135 WARNING: ORDINALS were specified for $ordinals_text
2136 They are ignored and should be replaced with a combination of GENERATE,
2137 DEPEND and SHARED_SOURCE.
2138 EOF
2139
2140     # Massage the result
2141
2142     # If we depend on a header file or a perl module, add an inclusion of
2143     # its directory to allow smoothe inclusion
2144     foreach my $dest (keys %{$unified_info{depends}}) {
2145         next if $dest eq "";
2146         foreach my $d (keys %{$unified_info{depends}->{$dest}}) {
2147             next unless $d =~ /\.(h|pm)$/;
2148             my $i = dirname($d);
2149             my $spot =
2150                 $d eq "configdata.pm" || defined($unified_info{generate}->{$d})
2151                 ? 'build' : 'source';
2152             push @{$unified_info{includes}->{$dest}->{$spot}}, $i
2153                 unless grep { $_ eq $i } @{$unified_info{includes}->{$dest}->{$spot}};
2154         }
2155     }
2156
2157     # Trickle down includes placed on libraries, engines and programs to
2158     # their sources (i.e. object files)
2159     foreach my $dest (keys %{$unified_info{engines}},
2160                       keys %{$unified_info{libraries}},
2161                       keys %{$unified_info{programs}}) {
2162         foreach my $k (("source", "build")) {
2163             next unless defined($unified_info{includes}->{$dest}->{$k});
2164             my @incs = reverse @{$unified_info{includes}->{$dest}->{$k}};
2165             foreach my $obj (grep /\.o$/,
2166                              (keys %{$unified_info{sources}->{$dest}},
2167                               keys %{$unified_info{shared_sources}->{$dest}})) {
2168                 foreach my $inc (@incs) {
2169                     unshift @{$unified_info{includes}->{$obj}->{$k}}, $inc
2170                         unless grep { $_ eq $inc } @{$unified_info{includes}->{$obj}->{$k}};
2171                 }
2172             }
2173         }
2174         delete $unified_info{includes}->{$dest};
2175     }
2176
2177     ### Make unified_info a bit more efficient
2178     # One level structures
2179     foreach (("programs", "libraries", "engines", "scripts", "extra", "overrides")) {
2180         $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
2181     }
2182     # Two level structures
2183     foreach my $l1 (("install", "sources", "shared_sources", "ldadd", "depends")) {
2184         foreach my $l2 (sort keys %{$unified_info{$l1}}) {
2185             $unified_info{$l1}->{$l2} =
2186                 [ sort keys %{$unified_info{$l1}->{$l2}} ];
2187         }
2188     }
2189     # Includes
2190     foreach my $dest (sort keys %{$unified_info{includes}}) {
2191         if (defined($unified_info{includes}->{$dest}->{build})) {
2192             my @source_includes = ();
2193             @source_includes = ( @{$unified_info{includes}->{$dest}->{source}} )
2194                 if defined($unified_info{includes}->{$dest}->{source});
2195             $unified_info{includes}->{$dest} =
2196                 [ @{$unified_info{includes}->{$dest}->{build}} ];
2197             foreach my $inc (@source_includes) {
2198                 push @{$unified_info{includes}->{$dest}}, $inc
2199                     unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
2200             }
2201         } else {
2202             $unified_info{includes}->{$dest} =
2203                 [ @{$unified_info{includes}->{$dest}->{source}} ];
2204         }
2205     }
2206 }
2207
2208 # For the schemes that need it, we provide the old *_obj configs
2209 # from the *_asm_obj ones
2210 foreach (grep /_(asm|aux)_src$/, keys %target) {
2211     my $src = $_;
2212     (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
2213     $target{$obj} = $target{$src};
2214     $target{$obj} =~ s/\.[csS]\b/.o/g; # C and assembler
2215     $target{$obj} =~ s/\.(cc|cpp)\b/_cc.o/g; # C++
2216 }
2217
2218 # Write down our configuration where it fits #########################
2219
2220 print "Creating configdata.pm\n";
2221 open(OUT,">configdata.pm") || die "unable to create configdata.pm: $!\n";
2222 print OUT <<"EOF";
2223 #! $config{HASHBANGPERL}
2224
2225 package configdata;
2226
2227 use strict;
2228 use warnings;
2229
2230 use Exporter;
2231 #use vars qw(\@ISA \@EXPORT);
2232 our \@ISA = qw(Exporter);
2233 our \@EXPORT = qw(\%config \%target \%disabled \%withargs \%unified_info \@disablables);
2234
2235 EOF
2236 print OUT "our %config = (\n";
2237 foreach (sort keys %config) {
2238     if (ref($config{$_}) eq "ARRAY") {
2239         print OUT "  ", $_, " => [ ", join(", ",
2240                                            map { quotify("perl", $_) }
2241                                            @{$config{$_}}), " ],\n";
2242     } elsif (ref($config{$_}) eq "HASH") {
2243         print OUT "  ", $_, " => {";
2244         if (scalar keys %{$config{$_}} > 0) {
2245             print OUT "\n";
2246             foreach my $key (sort keys %{$config{$_}}) {
2247                 print OUT "      ",
2248                     join(" => ",
2249                          quotify("perl", $key),
2250                          defined $config{$_}->{$key}
2251                              ? quotify("perl", $config{$_}->{$key})
2252                              : "undef");
2253                 print OUT ",\n";
2254             }
2255             print OUT "  ";
2256         }
2257         print OUT "},\n";
2258     } else {
2259         print OUT "  ", $_, " => ", quotify("perl", $config{$_}), ",\n"
2260     }
2261 }
2262 print OUT <<"EOF";
2263 );
2264
2265 EOF
2266 print OUT "our %target = (\n";
2267 foreach (sort keys %target) {
2268     if (ref($target{$_}) eq "ARRAY") {
2269         print OUT "  ", $_, " => [ ", join(", ",
2270                                            map { quotify("perl", $_) }
2271                                            @{$target{$_}}), " ],\n";
2272     } else {
2273         print OUT "  ", $_, " => ", quotify("perl", $target{$_}), ",\n"
2274     }
2275 }
2276 print OUT <<"EOF";
2277 );
2278
2279 EOF
2280 print OUT "our \%available_protocols = (\n";
2281 print OUT "  tls => [ ", join(", ", map { quotify("perl", $_) } @tls), " ],\n";
2282 print OUT "  dtls => [ ", join(", ", map { quotify("perl", $_) } @dtls), " ],\n";
2283 print OUT <<"EOF";
2284 );
2285
2286 EOF
2287 print OUT "our \@disablables = (\n";
2288 foreach (@disablables) {
2289     print OUT "  ", quotify("perl", $_), ",\n";
2290 }
2291 print OUT <<"EOF";
2292 );
2293
2294 EOF
2295 print OUT "our \%disabled = (\n";
2296 foreach (sort keys %disabled) {
2297     print OUT "  ", quotify("perl", $_), " => ", quotify("perl", $disabled{$_}), ",\n";
2298 }
2299 print OUT <<"EOF";
2300 );
2301
2302 EOF
2303 print OUT "our %withargs = (\n";
2304 foreach (sort keys %withargs) {
2305     if (ref($withargs{$_}) eq "ARRAY") {
2306         print OUT "  ", $_, " => [ ", join(", ",
2307                                            map { quotify("perl", $_) }
2308                                            @{$withargs{$_}}), " ],\n";
2309     } else {
2310         print OUT "  ", $_, " => ", quotify("perl", $withargs{$_}), ",\n"
2311     }
2312 }
2313 print OUT <<"EOF";
2314 );
2315
2316 EOF
2317 if ($builder eq "unified") {
2318     my $recurse;
2319     $recurse = sub {
2320         my $indent = shift;
2321         foreach (@_) {
2322             if (ref $_ eq "ARRAY") {
2323                 print OUT " "x$indent, "[\n";
2324                 foreach (@$_) {
2325                     $recurse->($indent + 4, $_);
2326                 }
2327                 print OUT " "x$indent, "],\n";
2328             } elsif (ref $_ eq "HASH") {
2329                 my %h = %$_;
2330                 print OUT " "x$indent, "{\n";
2331                 foreach (sort keys %h) {
2332                     if (ref $h{$_} eq "") {
2333                         print OUT " "x($indent + 4), quotify("perl", $_), " => ", quotify("perl", $h{$_}), ",\n";
2334                     } else {
2335                         print OUT " "x($indent + 4), quotify("perl", $_), " =>\n";
2336                         $recurse->($indent + 8, $h{$_});
2337                     }
2338                 }
2339                 print OUT " "x$indent, "},\n";
2340             } else {
2341                 print OUT " "x$indent, quotify("perl", $_), ",\n";
2342             }
2343         }
2344     };
2345     print OUT "our %unified_info = (\n";
2346     foreach (sort keys %unified_info) {
2347         if (ref $unified_info{$_} eq "") {
2348             print OUT " "x4, quotify("perl", $_), " => ", quotify("perl", $unified_info{$_}), ",\n";
2349         } else {
2350             print OUT " "x4, quotify("perl", $_), " =>\n";
2351             $recurse->(8, $unified_info{$_});
2352         }
2353     }
2354     print OUT <<"EOF";
2355 );
2356
2357 EOF
2358 }
2359 print OUT
2360     "# The following data is only used when this files is use as a script\n";
2361 print OUT "my \@makevars = (\n";
2362 foreach (sort keys %user) {
2363     print OUT "    '",$_,"',\n";
2364 }
2365 print OUT ");\n";
2366 print OUT "my \%disabled_info = (\n";
2367 foreach my $what (sort keys %disabled_info) {
2368     print OUT "    '$what' => {\n";
2369     foreach my $info (sort keys %{$disabled_info{$what}}) {
2370         if (ref $disabled_info{$what}->{$info} eq 'ARRAY') {
2371             print OUT "        $info => [ ",
2372                 join(', ', map { "'$_'" } @{$disabled_info{$what}->{$info}}),
2373                 " ],\n";
2374         } else {
2375             print OUT "        $info => '", $disabled_info{$what}->{$info},
2376                 "',\n";
2377         }
2378     }
2379     print OUT "    },\n";
2380 }
2381 print OUT ");\n";
2382 print OUT 'my @user_crossable = qw( ', join (' ', @user_crossable), " );\n";
2383 print OUT << 'EOF';
2384 # If run directly, we can give some answers, and even reconfigure
2385 unless (caller) {
2386     use Getopt::Long;
2387     use File::Spec::Functions;
2388     use File::Basename;
2389     use Pod::Usage;
2390
2391     my $here = dirname($0);
2392
2393     my $dump = undef;
2394     my $cmdline = undef;
2395     my $options = undef;
2396     my $target = undef;
2397     my $envvars = undef;
2398     my $makevars = undef;
2399     my $buildparams = undef;
2400     my $reconf = undef;
2401     my $verbose = undef;
2402     my $help = undef;
2403     my $man = undef;
2404     GetOptions('dump|d'                 => \$dump,
2405                'command-line|c'         => \$cmdline,
2406                'options|o'              => \$options,
2407                'target|t'               => \$target,
2408                'environment|e'          => \$envvars,
2409                'make-variables|m'       => \$makevars,
2410                'build-parameters|b'     => \$buildparams,
2411                'reconfigure|reconf|r'   => \$reconf,
2412                'verbose|v'              => \$verbose,
2413                'help'                   => \$help,
2414                'man'                    => \$man)
2415         or die "Errors in command line arguments\n";
2416
2417     unless ($dump || $cmdline || $options || $target || $envvars || $makevars
2418             || $buildparams || $reconf || $verbose || $help || $man) {
2419         print STDERR <<"_____";
2420 You must give at least one option.
2421 For more information, do '$0 --help'
2422 _____
2423         exit(2);
2424     }
2425
2426     if ($help) {
2427         pod2usage(-exitval => 0,
2428                   -verbose => 1);
2429     }
2430     if ($man) {
2431         pod2usage(-exitval => 0,
2432                   -verbose => 2);
2433     }
2434     if ($dump || $cmdline) {
2435         print "\nCommand line (with current working directory = $here):\n\n";
2436         print '    ',join(' ',
2437                           $config{perl},
2438                           catfile($config{sourcedir}, 'Configure'),
2439                           @{$config{perlargv}}), "\n";
2440         print "\nPerl information:\n\n";
2441         print '    ',$config{perl_cmd},"\n";
2442         print '    ',$config{perl_version},' for ',$config{perl_archname},"\n";
2443     }
2444     if ($dump || $options) {
2445         my $longest = 0;
2446         my $longest2 = 0;
2447         foreach my $what (@disablables) {
2448             $longest = length($what) if $longest < length($what);
2449             $longest2 = length($disabled{$what})
2450                 if $disabled{$what} && $longest2 < length($disabled{$what});
2451         }
2452         print "\nEnabled features:\n\n";
2453         foreach my $what (@disablables) {
2454             print "    $what\n" unless $disabled{$what};
2455         }
2456         print "\nDisabled features:\n\n";
2457         foreach my $what (@disablables) {
2458             if ($disabled{$what}) {
2459                 print "    $what", ' ' x ($longest - length($what) + 1),
2460                     "[$disabled{$what}]", ' ' x ($longest2 - length($disabled{$what}) + 1);
2461                 print $disabled_info{$what}->{macro}
2462                     if $disabled_info{$what}->{macro};
2463                 print ' (skip ',
2464                     join(', ', @{$disabled_info{$what}->{skipped}}),
2465                     ')'
2466                     if $disabled_info{$what}->{skipped};
2467                 print "\n";
2468             }
2469         }
2470     }
2471     if ($dump || $target) {
2472         print "\nConfig target attributes:\n\n";
2473         foreach (sort keys %target) {
2474             next if $_ =~ m|^_| || $_ eq 'template';
2475             my $quotify = sub {
2476                 map { (my $x = $_) =~ s|([\\\$\@"])|\\$1|g; "\"$x\""} @_;
2477             };
2478             print '    ', $_, ' => ';
2479             if (ref($target{$_}) eq "ARRAY") {
2480                 print '[ ', join(', ', $quotify->(@{$target{$_}})), " ],\n";
2481             } else {
2482                 print $quotify->($target{$_}), ",\n"
2483             }
2484         }
2485     }
2486     if ($dump || $envvars) {
2487         print "\nRecorded environment:\n\n";
2488         foreach (sort keys %{$config{perlenv}}) {
2489             print '    ',$_,' = ',($config{perlenv}->{$_} || ''),"\n";
2490         }
2491     }
2492     if ($dump || $makevars) {
2493         print "\nMakevars:\n\n";
2494         foreach my $var (@makevars) {
2495             my $prefix = '';
2496             $prefix = $config{CROSS_COMPILE}
2497                 if grep { $var eq $_ } @user_crossable;
2498             $prefix //= '';
2499             print '    ',$var,' ' x (16 - length $var),'= ',
2500                 (ref $config{$var} eq 'ARRAY'
2501                  ? join(' ', @{$config{$var}})
2502                  : $prefix.$config{$var}),
2503                 "\n"
2504                 if defined $config{$var};
2505         }
2506
2507         my @buildfile = ($config{builddir}, $config{build_file});
2508         unshift @buildfile, $here
2509             unless file_name_is_absolute($config{builddir});
2510         my $buildfile = canonpath(catdir(@buildfile));
2511         print <<"_____";
2512
2513 NOTE: These variables only represent the configuration view.  The build file
2514 template may have processed these variables further, please have a look at the
2515 build file for more exact data:
2516     $buildfile
2517 _____
2518     }
2519     if ($dump || $buildparams) {
2520         my @buildfile = ($config{builddir}, $config{build_file});
2521         unshift @buildfile, $here
2522             unless file_name_is_absolute($config{builddir});
2523         print "\nbuild file:\n\n";
2524         print "    ", canonpath(catfile(@buildfile)),"\n";
2525
2526         print "\nbuild file templates:\n\n";
2527         foreach (@{$config{build_file_templates}}) {
2528             my @tmpl = ($_);
2529             unshift @tmpl, $here
2530                 unless file_name_is_absolute($config{sourcedir});
2531             print '    ',canonpath(catfile(@tmpl)),"\n";
2532         }
2533     }
2534     if ($reconf) {
2535         if ($verbose) {
2536             print 'Reconfiguring with: ', join(' ',@{$config{perlargv}}), "\n";
2537             foreach (sort keys %{$config{perlenv}}) {
2538                 print '    ',$_,' = ',($config{perlenv}->{$_} || ""),"\n";
2539             }
2540         }
2541
2542         chdir $here;
2543         exec $^X,catfile($config{sourcedir}, 'Configure'),'reconf';
2544     }
2545 }
2546
2547 1;
2548
2549 __END__
2550
2551 =head1 NAME
2552
2553 configdata.pm - configuration data for OpenSSL builds
2554
2555 =head1 SYNOPSIS
2556
2557 Interactive:
2558
2559   perl configdata.pm [options]
2560
2561 As data bank module:
2562
2563   use configdata;
2564
2565 =head1 DESCRIPTION
2566
2567 This module can be used in two modes, interactively and as a module containing
2568 all the data recorded by OpenSSL's Configure script.
2569
2570 When used interactively, simply run it as any perl script, with at least one
2571 option, and you will get the information you ask for.  See L</OPTIONS> below.
2572
2573 When loaded as a module, you get a few databanks with useful information to
2574 perform build related tasks.  The databanks are:
2575
2576     %config             Configured things.
2577     %target             The OpenSSL config target with all inheritances
2578                         resolved.
2579     %disabled           The features that are disabled.
2580     @disablables        The list of features that can be disabled.
2581     %withargs           All data given through --with-THING options.
2582     %unified_info       All information that was computed from the build.info
2583                         files.
2584
2585 =head1 OPTIONS
2586
2587 =over 4
2588
2589 =item B<--help>
2590
2591 Print a brief help message and exit.
2592
2593 =item B<--man>
2594
2595 Print the manual page and exit.
2596
2597 =item B<--dump> | B<-d>
2598
2599 Print all relevant configuration data.  This is equivalent to B<--command-line>
2600 B<--options> B<--target> B<--environment> B<--make-variables>
2601 B<--build-parameters>.
2602
2603 =item B<--command-line> | B<-c>
2604
2605 Print the current configuration command line.
2606
2607 =item B<--options> | B<-o>
2608
2609 Print the features, both enabled and disabled, and display defined macro and
2610 skipped directories where applicable.
2611
2612 =item B<--target> | B<-t>
2613
2614 Print the config attributes for this config target.
2615
2616 =item B<--environment> | B<-e>
2617
2618 Print the environment variables and their values at the time of configuration.
2619
2620 =item B<--make-variables> | B<-m>
2621
2622 Print the main make variables generated in the current configuration
2623
2624 =item B<--build-parameters> | B<-b>
2625
2626 Print the build parameters, i.e. build file and build file templates.
2627
2628 =item B<--reconfigure> | B<--reconf> | B<-r>
2629
2630 Redo the configuration.
2631
2632 =item B<--verbose> | B<-v>
2633
2634 Verbose output.
2635
2636 =back
2637
2638 =cut
2639
2640 EOF
2641 close(OUT);
2642 if ($builder_platform eq 'unix') {
2643     my $mode = (0755 & ~umask);
2644     chmod $mode, 'configdata.pm'
2645         or warn sprintf("WARNING: Couldn't change mode for 'configdata.pm' to 0%03o: %s\n",$mode,$!);
2646 }
2647
2648 my %builders = (
2649     unified => sub {
2650         print 'Creating ',$target{build_file},"\n";
2651         run_dofile(catfile($blddir, $target{build_file}),
2652                    @{$config{build_file_templates}});
2653     },
2654     );
2655
2656 $builders{$builder}->($builder_platform, @builder_opts);
2657
2658 print <<"EOF" if ($disabled{threads} eq "unavailable");
2659
2660 The library could not be configured for supporting multi-threaded
2661 applications as the compiler options required on this system are not known.
2662 See file INSTALL for details if you need multi-threading.
2663 EOF
2664
2665 print <<"EOF" if ($no_shared_warn);
2666
2667 The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
2668 platform, so we will pretend you gave the option 'no-pic', which also disables
2669 'shared' and 'dynamic-engine'.  If you know how to implement shared libraries
2670 or position independent code, please let us know (but please first make sure
2671 you have tried with a current version of OpenSSL).
2672 EOF
2673
2674 print <<"EOF";
2675
2676 **********************************************************************
2677 ***                                                                ***
2678 ***   If you want to report a building issue, please include the   ***
2679 ***   output from this command:                                    ***
2680 ***                                                                ***
2681 ***     perl configdata.pm --dump                                  ***
2682 ***                                                                ***
2683 **********************************************************************
2684 EOF
2685
2686 exit(0);
2687
2688 ######################################################################
2689 #
2690 # Helpers and utility functions
2691 #
2692
2693 # Configuration file reading #########################################
2694
2695 # Note: All of the helper functions are for lazy evaluation.  They all
2696 # return a CODE ref, which will return the intended value when evaluated.
2697 # Thus, whenever there's mention of a returned value, it's about that
2698 # intended value.
2699
2700 # Helper function to implement conditional inheritance depending on the
2701 # value of $disabled{asm}.  Used in inherit_from values as follows:
2702 #
2703 #      inherit_from => [ "template", asm("asm_tmpl") ]
2704 #
2705 sub asm {
2706     my @x = @_;
2707     sub {
2708         $disabled{asm} ? () : @x;
2709     }
2710 }
2711
2712 # Helper function to implement conditional value variants, with a default
2713 # plus additional values based on the value of $config{build_type}.
2714 # Arguments are given in hash table form:
2715 #
2716 #       picker(default => "Basic string: ",
2717 #              debug   => "debug",
2718 #              release => "release")
2719 #
2720 # When configuring with --debug, the resulting string will be
2721 # "Basic string: debug", and when not, it will be "Basic string: release"
2722 #
2723 # This can be used to create variants of sets of flags according to the
2724 # build type:
2725 #
2726 #       cflags => picker(default => "-Wall",
2727 #                        debug   => "-g -O0",
2728 #                        release => "-O3")
2729 #
2730 sub picker {
2731     my %opts = @_;
2732     return sub { add($opts{default} || (),
2733                      $opts{$config{build_type}} || ())->(); }
2734 }
2735
2736 # Helper function to combine several values of different types into one.
2737 # This is useful if you want to combine a string with the result of a
2738 # lazy function, such as:
2739 #
2740 #       cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
2741 #
2742 sub combine {
2743     my @stuff = @_;
2744     return sub { add(@stuff)->(); }
2745 }
2746
2747 # Helper function to implement conditional values depending on the value
2748 # of $disabled{threads}.  Can be used as follows:
2749 #
2750 #       cflags => combine("-Wall", threads("-pthread"))
2751 #
2752 sub threads {
2753     my @flags = @_;
2754     return sub { add($disabled{threads} ? () : @flags)->(); }
2755 }
2756
2757
2758
2759 our $add_called = 0;
2760 # Helper function to implement adding values to already existing configuration
2761 # values.  It handles elements that are ARRAYs, CODEs and scalars
2762 sub _add {
2763     my $separator = shift;
2764
2765     # If there's any ARRAY in the collection of values OR the separator
2766     # is undef, we will return an ARRAY of combined values, otherwise a
2767     # string of joined values with $separator as the separator.
2768     my $found_array = !defined($separator);
2769
2770     my @values =
2771         map {
2772             my $res = $_;
2773             while (ref($res) eq "CODE") {
2774                 $res = $res->();
2775             }
2776             if (defined($res)) {
2777                 if (ref($res) eq "ARRAY") {
2778                     $found_array = 1;
2779                     @$res;
2780                 } else {
2781                     $res;
2782                 }
2783             } else {
2784                 ();
2785             }
2786     } (@_);
2787
2788     $add_called = 1;
2789
2790     if ($found_array) {
2791         [ @values ];
2792     } else {
2793         join($separator, grep { defined($_) && $_ ne "" } @values);
2794     }
2795 }
2796 sub add_before {
2797     my $separator = " ";
2798     if (ref($_[$#_]) eq "HASH") {
2799         my $opts = pop;
2800         $separator = $opts->{separator};
2801     }
2802     my @x = @_;
2803     sub { _add($separator, @x, @_) };
2804 }
2805 sub add {
2806     my $separator = " ";
2807     if (ref($_[$#_]) eq "HASH") {
2808         my $opts = pop;
2809         $separator = $opts->{separator};
2810     }
2811     my @x = @_;
2812     sub { _add($separator, @_, @x) };
2813 }
2814
2815 sub read_eval_file {
2816     my $fname = shift;
2817     my $content;
2818     my @result;
2819
2820     open F, "< $fname" or die "Can't open '$fname': $!\n";
2821     {
2822         undef local $/;
2823         $content = <F>;
2824     }
2825     close F;
2826     {
2827         local $@;
2828
2829         @result = ( eval $content );
2830         warn $@ if $@;
2831     }
2832     return wantarray ? @result : $result[0];
2833 }
2834
2835 # configuration reader, evaluates the input file as a perl script and expects
2836 # it to fill %targets with target configurations.  Those are then added to
2837 # %table.
2838 sub read_config {
2839     my $fname = shift;
2840     my %targets;
2841
2842     {
2843         # Protect certain tables from tampering
2844         local %table = ();
2845
2846         %targets = read_eval_file($fname);
2847     }
2848     my %preexisting = ();
2849     foreach (sort keys %targets) {
2850         $preexisting{$_} = 1 if $table{$_};
2851     }
2852     die <<"EOF",
2853 The following config targets from $fname
2854 shadow pre-existing config targets with the same name:
2855 EOF
2856         map { "  $_\n" } sort keys %preexisting
2857         if %preexisting;
2858
2859
2860     # For each target, check that it's configured with a hash table.
2861     foreach (keys %targets) {
2862         if (ref($targets{$_}) ne "HASH") {
2863             if (ref($targets{$_}) eq "") {
2864                 warn "Deprecated target configuration for $_, ignoring...\n";
2865             } else {
2866                 warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
2867             }
2868             delete $targets{$_};
2869         } else {
2870             $targets{$_}->{_conf_fname_int} = add([ $fname ]);
2871         }
2872     }
2873
2874     %table = (%table, %targets);
2875
2876 }
2877
2878 # configuration resolver.  Will only resolve all the lazy evaluation
2879 # codeblocks for the chosen target and all those it inherits from,
2880 # recursively
2881 sub resolve_config {
2882     my $target = shift;
2883     my @breadcrumbs = @_;
2884
2885 #    my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
2886
2887     if (grep { $_ eq $target } @breadcrumbs) {
2888         die "inherit_from loop!  target backtrace:\n  "
2889             ,$target,"\n  ",join("\n  ", @breadcrumbs),"\n";
2890     }
2891
2892     if (!defined($table{$target})) {
2893         warn "Warning! target $target doesn't exist!\n";
2894         return ();
2895     }
2896     # Recurse through all inheritances.  They will be resolved on the
2897     # fly, so when this operation is done, they will all just be a
2898     # bunch of attributes with string values.
2899     # What we get here, though, are keys with references to lists of
2900     # the combined values of them all.  We will deal with lists after
2901     # this stage is done.
2902     my %combined_inheritance = ();
2903     if ($table{$target}->{inherit_from}) {
2904         my @inherit_from =
2905             map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
2906         foreach (@inherit_from) {
2907             my %inherited_config = resolve_config($_, $target, @breadcrumbs);
2908
2909             # 'template' is a marker that's considered private to
2910             # the config that had it.
2911             delete $inherited_config{template};
2912
2913             foreach (keys %inherited_config) {
2914                 if (!$combined_inheritance{$_}) {
2915                     $combined_inheritance{$_} = [];
2916                 }
2917                 push @{$combined_inheritance{$_}}, $inherited_config{$_};
2918             }
2919         }
2920     }
2921
2922     # We won't need inherit_from in this target any more, since we've
2923     # resolved all the inheritances that lead to this
2924     delete $table{$target}->{inherit_from};
2925
2926     # Now is the time to deal with those lists.  Here's the place to
2927     # decide what shall be done with those lists, all based on the
2928     # values of the target we're currently dealing with.
2929     # - If a value is a coderef, it will be executed with the list of
2930     #   inherited values as arguments.
2931     # - If the corresponding key doesn't have a value at all or is the
2932     #   empty string, the inherited value list will be run through the
2933     #   default combiner (below), and the result becomes this target's
2934     #   value.
2935     # - Otherwise, this target's value is assumed to be a string that
2936     #   will simply override the inherited list of values.
2937     my $default_combiner = add();
2938
2939     my %all_keys =
2940         map { $_ => 1 } (keys %combined_inheritance,
2941                          keys %{$table{$target}});
2942
2943     sub process_values {
2944         my $object    = shift;
2945         my $inherited = shift;  # Always a [ list ]
2946         my $target    = shift;
2947         my $entry     = shift;
2948
2949         $add_called = 0;
2950
2951         while(ref($object) eq "CODE") {
2952             $object = $object->(@$inherited);
2953         }
2954         if (!defined($object)) {
2955             return ();
2956         }
2957         elsif (ref($object) eq "ARRAY") {
2958             local $add_called;  # To make sure recursive calls don't affect it
2959             return [ map { process_values($_, $inherited, $target, $entry) }
2960                      @$object ];
2961         } elsif (ref($object) eq "") {
2962             return $object;
2963         } else {
2964             die "cannot handle reference type ",ref($object)
2965                 ," found in target ",$target," -> ",$entry,"\n";
2966         }
2967     }
2968
2969     foreach (sort keys %all_keys) {
2970         my $previous = $combined_inheritance{$_};
2971
2972         # Current target doesn't have a value for the current key?
2973         # Assign it the default combiner, the rest of this loop body
2974         # will handle it just like any other coderef.
2975         if (!exists $table{$target}->{$_}) {
2976             $table{$target}->{$_} = $default_combiner;
2977         }
2978
2979         $table{$target}->{$_} = process_values($table{$target}->{$_},
2980                                                $combined_inheritance{$_},
2981                                                $target, $_);
2982         unless(defined($table{$target}->{$_})) {
2983             delete $table{$target}->{$_};
2984         }
2985 #        if ($extra_checks &&
2986 #            $previous && !($add_called ||  $previous ~~ $table{$target}->{$_})) {
2987 #            warn "$_ got replaced in $target\n";
2988 #        }
2989     }
2990
2991     # Finally done, return the result.
2992     return %{$table{$target}};
2993 }
2994
2995 sub usage
2996         {
2997         print STDERR $usage;
2998         print STDERR "\npick os/compiler from:\n";
2999         my $j=0;
3000         my $i;
3001         my $k=0;
3002         foreach $i (sort keys %table)
3003                 {
3004                 next if $table{$i}->{template};
3005                 next if $i =~ /^debug/;
3006                 $k += length($i) + 1;
3007                 if ($k > 78)
3008                         {
3009                         print STDERR "\n";
3010                         $k=length($i);
3011                         }
3012                 print STDERR $i . " ";
3013                 }
3014         foreach $i (sort keys %table)
3015                 {
3016                 next if $table{$i}->{template};
3017                 next if $i !~ /^debug/;
3018                 $k += length($i) + 1;
3019                 if ($k > 78)
3020                         {
3021                         print STDERR "\n";
3022                         $k=length($i);
3023                         }
3024                 print STDERR $i . " ";
3025                 }
3026         print STDERR "\n\nNOTE: If in doubt, on Unix-ish systems use './config'.\n";
3027         exit(1);
3028         }
3029
3030 sub run_dofile
3031 {
3032     my $out = shift;
3033     my @templates = @_;
3034
3035     unlink $out || warn "Can't remove $out, $!"
3036         if -f $out;
3037     foreach (@templates) {
3038         die "Can't open $_, $!" unless -f $_;
3039     }
3040     my $perlcmd = (quotify("maybeshell", $config{perl}))[0];
3041     my $cmd = "$perlcmd \"-I.\" \"-Mconfigdata\" \"$dofile\" -o\"Configure\" \"".join("\" \"",@templates)."\" > \"$out.new\"";
3042     #print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
3043     system($cmd);
3044     exit 1 if $? != 0;
3045     rename("$out.new", $out) || die "Can't rename $out.new, $!";
3046 }
3047
3048 sub compiler_predefined {
3049     state %predefined;
3050     my $default_compiler = shift;
3051
3052     return () if $^O eq 'VMS';
3053
3054     die 'compiler_predefined called without a default compiler'
3055         unless $default_compiler;
3056
3057     if (! $predefined{$default_compiler}) {
3058         my $cc = "$config{CROSS_COMPILE}$default_compiler";
3059
3060         $predefined{$default_compiler} = {};
3061
3062         # collect compiler pre-defines from gcc or gcc-alike...
3063         open(PIPE, "$cc -dM -E -x c /dev/null 2>&1 |");
3064         while (my $l = <PIPE>) {
3065             $l =~ m/^#define\s+(\w+(?:\(\w+\))?)(?:\s+(.+))?/ or last;
3066             $predefined{$default_compiler}->{$1} = $2 // '';
3067         }
3068         close(PIPE);
3069     }
3070
3071     return %{$predefined{$default_compiler}};
3072 }
3073
3074 sub which
3075 {
3076     my ($name)=@_;
3077
3078     if (eval { require IPC::Cmd; 1; }) {
3079         IPC::Cmd->import();
3080         return scalar IPC::Cmd::can_run($name);
3081     } else {
3082         # if there is $directories component in splitpath,
3083         # then it's not something to test with $PATH...
3084         return $name if (File::Spec->splitpath($name))[1];
3085
3086         foreach (File::Spec->path()) {
3087             my $fullpath = catfile($_, "$name$target{exe_extension}");
3088             if (-f $fullpath and -x $fullpath) {
3089                 return $fullpath;
3090             }
3091         }
3092     }
3093 }
3094
3095 sub env
3096 {
3097     my $name = shift;
3098     my %opts = @_;
3099
3100     unless ($opts{cacheonly}) {
3101         # Note that if $ENV{$name} doesn't exist or is undefined,
3102         # $config{perlenv}->{$name} will be created with the value
3103         # undef.  This is intentional.
3104
3105         $config{perlenv}->{$name} = $ENV{$name}
3106             if ! exists $config{perlenv}->{$name};
3107     }
3108     return $config{perlenv}->{$name};
3109 }
3110
3111 # Configuration printer ##############################################
3112
3113 sub print_table_entry
3114 {
3115     local $now_printing = shift;
3116     my %target = resolve_config($now_printing);
3117     my $type = shift;
3118
3119     # Don't print the templates
3120     return if $target{template};
3121
3122     my @sequence = (
3123         "sys_id",
3124         "cpp",
3125         "cppflags",
3126         "defines",
3127         "includes",
3128         "cc",
3129         "cflags",
3130         "unistd",
3131         "ld",
3132         "lflags",
3133         "loutflag",
3134         "ex_libs",
3135         "bn_ops",
3136         "apps_aux_src",
3137         "cpuid_asm_src",
3138         "uplink_aux_src",
3139         "bn_asm_src",
3140         "ec_asm_src",
3141         "des_asm_src",
3142         "aes_asm_src",
3143         "bf_asm_src",
3144         "md5_asm_src",
3145         "cast_asm_src",
3146         "sha1_asm_src",
3147         "rc4_asm_src",
3148         "rmd160_asm_src",
3149         "rc5_asm_src",
3150         "wp_asm_src",
3151         "cmll_asm_src",
3152         "modes_asm_src",
3153         "padlock_asm_src",
3154         "chacha_asm_src",
3155         "poly1035_asm_src",
3156         "thread_scheme",
3157         "perlasm_scheme",
3158         "dso_scheme",
3159         "shared_target",
3160         "shared_cflag",
3161         "shared_defines",
3162         "shared_ldflag",
3163         "shared_rcflag",
3164         "shared_extension",
3165         "dso_extension",
3166         "obj_extension",
3167         "exe_extension",
3168         "ranlib",
3169         "ar",
3170         "arflags",
3171         "aroutflag",
3172         "rc",
3173         "rcflags",
3174         "rcoutflag",
3175         "mt",
3176         "mtflags",
3177         "mtinflag",
3178         "mtoutflag",
3179         "multilib",
3180         "build_scheme",
3181         );
3182
3183     if ($type eq "TABLE") {
3184         print "\n";
3185         print "*** $now_printing\n";
3186         foreach (@sequence) {
3187             if (ref($target{$_}) eq "ARRAY") {
3188                 printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
3189             } else {
3190                 printf "\$%-12s = %s\n", $_, $target{$_};
3191             }
3192         }
3193     } elsif ($type eq "HASH") {
3194         my $largest =
3195             length((sort { length($a) <=> length($b) } @sequence)[-1]);
3196         print "    '$now_printing' => {\n";
3197         foreach (@sequence) {
3198             if ($target{$_}) {
3199                 if (ref($target{$_}) eq "ARRAY") {
3200                     print "      '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
3201                 } else {
3202                     print "      '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
3203                 }
3204             }
3205         }
3206         print "    },\n";
3207     }
3208 }
3209
3210 # Utility routines ###################################################
3211
3212 # On VMS, if the given file is a logical name, File::Spec::Functions
3213 # will consider it an absolute path.  There are cases when we want a
3214 # purely syntactic check without checking the environment.
3215 sub isabsolute {
3216     my $file = shift;
3217
3218     # On non-platforms, we just use file_name_is_absolute().
3219     return file_name_is_absolute($file) unless $^O eq "VMS";
3220
3221     # If the file spec includes a device or a directory spec,
3222     # file_name_is_absolute() is perfectly safe.
3223     return file_name_is_absolute($file) if $file =~ m|[:\[]|;
3224
3225     # Here, we know the given file spec isn't absolute
3226     return 0;
3227 }
3228
3229 # Makes a directory absolute and cleans out /../ in paths like foo/../bar
3230 # On some platforms, this uses rel2abs(), while on others, realpath() is used.
3231 # realpath() requires that at least all path components except the last is an
3232 # existing directory.  On VMS, the last component of the directory spec must
3233 # exist.
3234 sub absolutedir {
3235     my $dir = shift;
3236
3237     # realpath() is quite buggy on VMS.  It uses LIB$FID_TO_NAME, which
3238     # will return the volume name for the device, no matter what.  Also,
3239     # it will return an incorrect directory spec if the argument is a
3240     # directory that doesn't exist.
3241     if ($^O eq "VMS") {
3242         return rel2abs($dir);
3243     }
3244
3245     # We use realpath() on Unix, since no other will properly clean out
3246     # a directory spec.
3247     use Cwd qw/realpath/;
3248
3249     return realpath($dir);
3250 }
3251
3252 sub quotify {
3253     my %processors = (
3254         perl    => sub { my $x = shift;
3255                          $x =~ s/([\\\$\@"])/\\$1/g;
3256                          return '"'.$x.'"'; },
3257         maybeshell => sub { my $x = shift;
3258                             (my $y = $x) =~ s/([\\\"])/\\$1/g;
3259                             if ($x ne $y || $x =~ m|\s|) {
3260                                 return '"'.$y.'"';
3261                             } else {
3262                                 return $x;
3263                             }
3264                         },
3265         );
3266     my $for = shift;
3267     my $processor =
3268         defined($processors{$for}) ? $processors{$for} : sub { shift; };
3269
3270     return map { $processor->($_); } @_;
3271 }
3272
3273 # collect_from_file($filename, $line_concat_cond_re, $line_concat)
3274 # $filename is a file name to read from
3275 # $line_concat_cond_re is a regexp detecting a line continuation ending
3276 # $line_concat is a CODEref that takes care of concatenating two lines
3277 sub collect_from_file {
3278     my $filename = shift;
3279     my $line_concat_cond_re = shift;
3280     my $line_concat = shift;
3281
3282     open my $fh, $filename || die "unable to read $filename: $!\n";
3283     return sub {
3284         my $saved_line = "";
3285         $_ = "";
3286         while (<$fh>) {
3287             s|\R$||;
3288             if (defined $line_concat) {
3289                 $_ = $line_concat->($saved_line, $_);
3290                 $saved_line = "";
3291             }
3292             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3293                 $saved_line = $_;
3294                 next;
3295             }
3296             return $_;
3297         }
3298         die "$filename ending with continuation line\n" if $_;
3299         close $fh;
3300         return undef;
3301     }
3302 }
3303
3304 # collect_from_array($array, $line_concat_cond_re, $line_concat)
3305 # $array is an ARRAYref of lines
3306 # $line_concat_cond_re is a regexp detecting a line continuation ending
3307 # $line_concat is a CODEref that takes care of concatenating two lines
3308 sub collect_from_array {
3309     my $array = shift;
3310     my $line_concat_cond_re = shift;
3311     my $line_concat = shift;
3312     my @array = (@$array);
3313
3314     return sub {
3315         my $saved_line = "";
3316         $_ = "";
3317         while (defined($_ = shift @array)) {
3318             s|\R$||;
3319             if (defined $line_concat) {
3320                 $_ = $line_concat->($saved_line, $_);
3321                 $saved_line = "";
3322             }
3323             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3324                 $saved_line = $_;
3325                 next;
3326             }
3327             return $_;
3328         }
3329         die "input text ending with continuation line\n" if $_;
3330         return undef;
3331     }
3332 }
3333
3334 # collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
3335 # $lineiterator is a CODEref that delivers one line at a time.
3336 # All following arguments are regex/CODEref pairs, where the regexp detects a
3337 # line and the CODEref does something with the result of the regexp.
3338 sub collect_information {
3339     my $lineiterator = shift;
3340     my %collectors = @_;
3341
3342     while(defined($_ = $lineiterator->())) {
3343         s|\R$||;
3344         my $found = 0;
3345         if ($collectors{"BEFORE"}) {
3346             $collectors{"BEFORE"}->($_);
3347         }
3348         foreach my $re (keys %collectors) {
3349             if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
3350                 $collectors{$re}->($lineiterator);
3351                 $found = 1;
3352             };
3353         }
3354         if ($collectors{"OTHERWISE"}) {
3355             $collectors{"OTHERWISE"}->($lineiterator, $_)
3356                 unless $found || !defined $collectors{"OTHERWISE"};
3357         }
3358         if ($collectors{"AFTER"}) {
3359             $collectors{"AFTER"}->($_);
3360         }
3361     }
3362 }
3363
3364 # tokenize($line)
3365 # $line is a line of text to split up into tokens
3366 # returns a list of tokens
3367 #
3368 # Tokens are divided by spaces.  If the tokens include spaces, they
3369 # have to be quoted with single or double quotes.  Double quotes
3370 # inside a double quoted token must be escaped.  Escaping is done
3371 # with backslash.
3372 # Basically, the same quoting rules apply for " and ' as in any
3373 # Unix shell.
3374 sub tokenize {
3375     my $line = my $debug_line = shift;
3376     my @result = ();
3377
3378     while ($line =~ s|^\s+||, $line ne "") {
3379         my $token = "";
3380         while ($line ne "" && $line !~ m|^\s|) {
3381             if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
3382                 $token .= $1;
3383                 $line = $';
3384             } elsif ($line =~ m/^'([^']*)'/) {
3385                 $token .= $1;
3386                 $line = $';
3387             } elsif ($line =~ m/^(\S+)/) {
3388                 $token .= $1;
3389                 $line = $';
3390             }
3391         }
3392         push @result, $token;
3393     }
3394
3395     if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
3396         print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
3397         print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
3398     }
3399     return @result;
3400 }