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     "autoload-config",
 329     "bf",
 330     "blake2",
 331     "camellia",
 332     "capieng",
 333     "cast",
 334     "chacha",
 335     "cmac",
 336     "cms",
 337     "comp",
 338     "crypto-mdebug",
 339     "crypto-mdebug-backtrace",
 340     "ct",
 341     "deprecated",
 342     "des",
 343     "devcryptoeng",
 344     "dgram",
 345     "dh",
 346     "dsa",
 347     "dso",
 348     "dtls",
 349     "dynamic-engine",
 350     "ec",
 351     "ec2m",
 352     "ecdh",
 353     "ecdsa",
 354     "ec_nistp_64_gcc_128",
 355     "egd",
 356     "engine",
 357     "err",
 358     "external-tests",
 359     "filenames",
 360     "fuzz-libfuzzer",
 361     "fuzz-afl",
 362     "gost",
 363     "heartbeats",
 364     "hw(-.+)?",
 365     "idea",
 366     "makedepend",
 367     "md2",
 368     "md4",
 369     "mdc2",
 370     "msan",
 371     "multiblock",
 372     "nextprotoneg",
 373     "ocb",
 374     "ocsp",
 375     "pic",
 376     "poly1305",
 377     "posix-io",
 378     "psk",
 379     "rc2",
 380     "rc4",
 381     "rc5",
 382     "rdrand",
 383     "rfc3779",
 384     "rmd160",
 385     "scrypt",
 386     "sctp",
 387     "seed",
 388     "shared",
 389     "siphash",
 390     "sm2",
 391     "sm3",
 392     "sm4",
 393     "sock",
 394     "srp",
 395     "srtp",
 396     "sse2",
 397     "ssl",
 398     "ssl-trace",
 399     "static-engine",
 400     "stdio",
 401     "tests",
 402     "threads",
 403     "tls",
 404     "tls13downgrade",
 405     "ts",
 406     "ubsan",
 407     "ui-console",
 408     "unit-test",
 409     "whirlpool",
 410     "weak-ssl-ciphers",
 411     "zlib",
 412     "zlib-dynamic",
 413     );
 414 foreach my $proto ((@tls, @dtls))
 415         {
 416         push(@disablables, $proto);
 417         push(@disablables, "$proto-method") unless $proto eq "tls1_3";
 418         }
 419
 420 my %deprecated_disablables = (
 421     "ssl2" => undef,
 422     "buf-freelists" => undef,
 423     "ripemd" => "rmd160",
 424     "ui" => "ui-console",
 425     );
 426
 427 # All of the following are disabled by default:
 428
 429 our %disabled = ( # "what"         => "comment"
 430                   "asan"                => "default",
 431                   "crypto-mdebug"       => "default",
 432                   "crypto-mdebug-backtrace" => "default",
 433                   "devcryptoeng"        => "default",
 434                   "ec_nistp_64_gcc_128" => "default",
 435                   "egd"                 => "default",
 436                   "external-tests"      => "default",
 437                   "fuzz-libfuzzer"      => "default",
 438                   "fuzz-afl"            => "default",
 439                   "heartbeats"          => "default",
 440                   "md2"                 => "default",
 441                   "msan"                => "default",
 442                   "rc5"                 => "default",
 443                   "sctp"                => "default",
 444                   "ssl-trace"           => "default",
 445                   "ssl3"                => "default",
 446                   "ssl3-method"         => "default",
 447                   "ubsan"               => "default",
 448                   "tls13downgrade"      => "default",
 449                   "unit-test"           => "default",
 450                   "weak-ssl-ciphers"    => "default",
 451                   "zlib"                => "default",
 452                   "zlib-dynamic"        => "default",
 453                 );
 454
 455 # Note: => pair form used for aesthetics, not to truly make a hash table
 456 my @disable_cascades = (
 457     # "what"            => [ "cascade", ... ]
 458     sub { $config{processor} eq "386" }
 459                         => [ "sse2" ],
 460     "ssl"               => [ "ssl3" ],
 461     "ssl3-method"       => [ "ssl3" ],
 462     "zlib"              => [ "zlib-dynamic" ],
 463     "des"               => [ "mdc2" ],
 464     "ec"                => [ "ecdsa", "ecdh" ],
 465
 466     "dgram"             => [ "dtls", "sctp" ],
 467     "sock"              => [ "dgram" ],
 468     "dtls"              => [ @dtls ],
 469     sub { 0 == scalar grep { !$disabled{$_} } @dtls }
 470                         => [ "dtls" ],
 471
 472     "tls"               => [ @tls ],
 473     sub { 0 == scalar grep { !$disabled{$_} } @tls }
 474                         => [ "tls" ],
 475
 476     "crypto-mdebug"     => [ "crypto-mdebug-backtrace" ],
 477
 478     # Without DSO, we can't load dynamic engines, so don't build them dynamic
 479     "dso"               => [ "dynamic-engine" ],
 480
 481     # Without position independent code, there can be no shared libraries or DSOs
 482     "pic"               => [ "shared" ],
 483     "shared"            => [ "dynamic-engine" ],
 484     "engine"            => [ "afalgeng", "devcryptoeng" ],
 485
 486     # no-autoalginit is only useful when building non-shared
 487     "autoalginit"       => [ "shared", "apps" ],
 488
 489     "stdio"             => [ "apps", "capieng", "egd" ],
 490     "apps"              => [ "tests" ],
 491     "tests"             => [ "external-tests" ],
 492     "comp"              => [ "zlib" ],
 493     "ec"                => [ "tls1_3", "sm2" ],
 494     "sm3"               => [ "sm2" ],
 495     sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
 496
 497     sub { !$disabled{"msan"} } => [ "asm" ],
 498     );
 499
 500 # Avoid protocol support holes.  Also disable all versions below N, if version
 501 # N is disabled while N+1 is enabled.
 502 #
 503 my @list = (reverse @tls);
 504 while ((my $first, my $second) = (shift @list, shift @list)) {
 505     last unless @list;
 506     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 507                               => [ @list ] );
 508     unshift @list, $second;
 509 }
 510 my @list = (reverse @dtls);
 511 while ((my $first, my $second) = (shift @list, shift @list)) {
 512     last unless @list;
 513     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 514                               => [ @list ] );
 515     unshift @list, $second;
 516 }
 517
 518 # Explicit "no-..." options will be collected in %disabled along with the defaults.
 519 # To remove something from %disabled, use "enable-foo".
 520 # For symmetry, "disable-foo" is a synonym for "no-foo".
 521
 522 &usage if ($#ARGV < 0);
 523
 524 # For the "make variables" CINCLUDES and CDEFINES, we support lists with
 525 # platform specific list separators.  Users from those platforms should
 526 # recognise those separators from how you set up the PATH to find executables.
 527 # The default is the Unix like separator, :, but as an exception, we also
 528 # support the space as separator.
 529 my $list_separator_re =
 530     { VMS           => qr/(?<!\^),/,
 531       MSWin32       => qr/(?<!\\);/ } -> {$^O} // qr/(?<!\\)[:\s]/;
 532 # All the "make variables" we support
 533 # Some get pre-populated for the sake of backward compatibility
 534 # (we supported those before the change to "make variable" support.
 535 my %user = (
 536     AR          => env('AR'),
 537     ARFLAGS     => [],
 538     AS          => undef,
 539     ASFLAGS     => [],
 540     CC          => env('CC'),
 541     CFLAGS      => [],
 542     CXX         => env('CXX'),
 543     CXXFLAGS    => [],
 544     CPP         => undef,
 545     CPPFLAGS    => [],  # -D, -I, -Wp,
 546     CPPDEFINES  => [],  # Alternative for -D
 547     CPPINCLUDES => [],  # Alternative for -I
 548     CROSS_COMPILE => env('CROSS_COMPILE'),
 549     HASHBANGPERL=> env('HASHBANGPERL') || env('PERL'),
 550     LD          => undef,
 551     LDFLAGS     => [],  # -L, -Wl,
 552     LDLIBS      => [],  # -l
 553     MT          => undef,
 554     MTFLAGS     => [],
 555     RANLIB      => env('RANLIB'),
 556     RC          => env('RC') || env('WINDRES'),
 557     RCFLAGS     => [],
 558     RM          => undef,
 559    );
 560 # Info about what "make variables" may be prefixed with the cross compiler
 561 # prefix.  This should NEVER mention any such variable with a list for value.
 562 my @user_crossable = qw ( AR AS CC CXX CPP LD MT RANLIB RC );
 563 # The same but for flags given as Configure options.  These are *additional*
 564 # input, as opposed to the VAR=string option that override the corresponding
 565 # config target attributes
 566 my %useradd = (
 567     CPPDEFINES  => [],
 568     CPPINCLUDES => [],
 569     CPPFLAGS    => [],
 570     CFLAGS      => [],
 571     CXXFLAGS    => [],
 572     LDFLAGS     => [],
 573     LDLIBS      => [],
 574    );
 575
 576 my %user_synonyms = (
 577     HASHBANGPERL=> 'PERL',
 578     RC          => 'WINDRES',
 579    );
 580
 581 # Some target attributes have been renamed, this is the translation table
 582 my %target_attr_translate =(
 583     ar          => 'AR',
 584     as          => 'AS',
 585     cc          => 'CC',
 586     cxx         => 'CXX',
 587     cpp         => 'CPP',
 588     hashbangperl => 'HASHBANGPERL',
 589     ld          => 'LD',
 590     mt          => 'MT',
 591     ranlib      => 'RANLIB',
 592     rc          => 'RC',
 593     rm          => 'RM',
 594    );
 595
 596 # Initialisers coming from 'config' scripts
 597 $config{defines} = [ split(/$list_separator_re/, env('__CNF_CPPDEFINES')) ];
 598 $config{includes} = [ split(/$list_separator_re/, env('__CNF_CPPINCLUDES')) ];
 599 $config{cppflags} = [ env('__CNF_CPPFLAGS') || () ];
 600 $config{cflags} = [ env('__CNF_CFLAGS') || () ];
 601 $config{cxxflags} = [ env('__CNF_CXXFLAGS') || () ];
 602 $config{lflags} = [ env('__CNF_LDFLAGS') || () ];
 603 $config{ex_libs} = [ env('__CNF_LDLIBS') || () ];
 604
 605 $config{openssl_api_defines}=[];
 606 $config{openssl_algorithm_defines}=[];
 607 $config{openssl_thread_defines}=[];
 608 $config{openssl_sys_defines}=[];
 609 $config{openssl_other_defines}=[];
 610 $config{options}="";
 611 $config{build_type} = "release";
 612 my $target="";
 613
 614 my %cmdvars = ();               # Stores FOO='blah' type arguments
 615 my %unsupported_options = ();
 616 my %deprecated_options = ();
 617 # If you change this, update apps/version.c
 618 my @known_seed_sources = qw(getrandom devrandom os egd none rdcpu librandom);
 619 my @seed_sources = ();
 620 while (@argvcopy)
 621         {
 622         $_ = shift @argvcopy;
 623
 624         # Support env variable assignments among the options
 625         if (m|^(\w+)=(.+)?$|)
 626                 {
 627                 $cmdvars{$1} = $2;
 628                 # Every time a variable is given as a configuration argument,
 629                 # it acts as a reset if the variable.
 630                 if (exists $user{$1})
 631                         {
 632                         $user{$1} = ref $user{$1} eq "ARRAY" ? [] : undef;
 633                         }
 634                 #if (exists $useradd{$1})
 635                 #       {
 636                 #       $useradd{$1} = [];
 637                 #       }
 638                 next;
 639                 }
 640
 641         # VMS is a case insensitive environment, and depending on settings
 642         # out of our control, we may receive options uppercased.  Let's
 643         # downcase at least the part before any equal sign.
 644         if ($^O eq "VMS")
 645                 {
 646                 s/^([^=]*)/lc($1)/e;
 647                 }
 648
 649         # some people just can't read the instructions, clang people have to...
 650         s/^-no-(?!integrated-as)/no-/;
 651
 652         # rewrite some options in "enable-..." form
 653         s /^-?-?shared$/enable-shared/;
 654         s /^sctp$/enable-sctp/;
 655         s /^threads$/enable-threads/;
 656         s /^zlib$/enable-zlib/;
 657         s /^zlib-dynamic$/enable-zlib-dynamic/;
 658
 659         if (/^(no|disable|enable)-(.+)$/)
 660                 {
 661                 my $word = $2;
 662                 if (!exists $deprecated_disablables{$word}
 663                         && !grep { $word =~ /^${_}$/ } @disablables)
 664                         {
 665                         $unsupported_options{$_} = 1;
 666                         next;
 667                         }
 668                 }
 669         if (/^no-(.+)$/ || /^disable-(.+)$/)
 670                 {
 671                 foreach my $proto ((@tls, @dtls))
 672                         {
 673                         if ($1 eq "$proto-method")
 674                                 {
 675                                 $disabled{"$proto"} = "option($proto-method)";
 676                                 last;
 677                                 }
 678                         }
 679                 if ($1 eq "dtls")
 680                         {
 681                         foreach my $proto (@dtls)
 682                                 {
 683                                 $disabled{$proto} = "option(dtls)";
 684                                 }
 685                         $disabled{"dtls"} = "option(dtls)";
 686                         }
 687                 elsif ($1 eq "ssl")
 688                         {
 689                         # Last one of its kind
 690                         $disabled{"ssl3"} = "option(ssl)";
 691                         }
 692                 elsif ($1 eq "tls")
 693                         {
 694                         # XXX: Tests will fail if all SSL/TLS
 695                         # protocols are disabled.
 696                         foreach my $proto (@tls)
 697                                 {
 698                                 $disabled{$proto} = "option(tls)";
 699                                 }
 700                         }
 701                 elsif ($1 eq "static-engine")
 702                         {
 703                         delete $disabled{"dynamic-engine"};
 704                         }
 705                 elsif ($1 eq "dynamic-engine")
 706                         {
 707                         $disabled{"dynamic-engine"} = "option";
 708                         }
 709                 elsif (exists $deprecated_disablables{$1})
 710                         {
 711                         $deprecated_options{$_} = 1;
 712                         if (defined $deprecated_disablables{$1})
 713                                 {
 714                                 $disabled{$deprecated_disablables{$1}} = "option";
 715                                 }
 716                         }
 717                 else
 718                         {
 719                         $disabled{$1} = "option";
 720                         }
 721                 # No longer an automatic choice
 722                 $auto_threads = 0 if ($1 eq "threads");
 723                 }
 724         elsif (/^enable-(.+)$/)
 725                 {
 726                 if ($1 eq "static-engine")
 727                         {
 728                         $disabled{"dynamic-engine"} = "option";
 729                         }
 730                 elsif ($1 eq "dynamic-engine")
 731                         {
 732                         delete $disabled{"dynamic-engine"};
 733                         }
 734                 elsif ($1 eq "zlib-dynamic")
 735                         {
 736                         delete $disabled{"zlib"};
 737                         }
 738                 my $algo = $1;
 739                 delete $disabled{$algo};
 740
 741                 # No longer an automatic choice
 742                 $auto_threads = 0 if ($1 eq "threads");
 743                 }
 744         elsif (/^--strict-warnings$/)
 745                 {
 746                 $strict_warnings = 1;
 747                 }
 748         elsif (/^--debug$/)
 749                 {
 750                 $config{build_type} = "debug";
 751                 }
 752         elsif (/^--release$/)
 753                 {
 754                 $config{build_type} = "release";
 755                 }
 756         elsif (/^386$/)
 757                 { $config{processor}=386; }
 758         elsif (/^fips$/)
 759                 {
 760                 die "FIPS mode not supported\n";
 761                 }
 762         elsif (/^rsaref$/)
 763                 {
 764                 # No RSAref support any more since it's not needed.
 765                 # The check for the option is there so scripts aren't
 766                 # broken
 767                 }
 768         elsif (/^nofipscanistercheck$/)
 769                 {
 770                 die "FIPS mode not supported\n";
 771                 }
 772         elsif (/^[-+]/)
 773                 {
 774                 if (/^--prefix=(.*)$/)
 775                         {
 776                         $config{prefix}=$1;
 777                         die "Directory given with --prefix MUST be absolute\n"
 778                                 unless file_name_is_absolute($config{prefix});
 779                         }
 780                 elsif (/^--api=(.*)$/)
 781                         {
 782                         $config{api}=$1;
 783                         }
 784                 elsif (/^--libdir=(.*)$/)
 785                         {
 786                         $config{libdir}=$1;
 787                         }
 788                 elsif (/^--openssldir=(.*)$/)
 789                         {
 790                         $config{openssldir}=$1;
 791                         }
 792                 elsif (/^--with-zlib-lib=(.*)$/)
 793                         {
 794                         $withargs{zlib_lib}=$1;
 795                         }
 796                 elsif (/^--with-zlib-include=(.*)$/)
 797                         {
 798                         $withargs{zlib_include}=$1;
 799                         }
 800                 elsif (/^--with-fuzzer-lib=(.*)$/)
 801                         {
 802                         $withargs{fuzzer_lib}=$1;
 803                         }
 804                 elsif (/^--with-fuzzer-include=(.*)$/)
 805                         {
 806                         $withargs{fuzzer_include}=$1;
 807                         }
 808                 elsif (/^--with-rand-seed=(.*)$/)
 809                         {
 810                         foreach my $x (split(m|,|, $1))
 811                             {
 812                             die "Unknown --with-rand-seed choice $x\n"
 813                                 if ! grep { $x eq $_ } @known_seed_sources;
 814                             push @seed_sources, $x;
 815                             }
 816                         }
 817                 elsif (/^--cross-compile-prefix=(.*)$/)
 818                         {
 819                         $user{CROSS_COMPILE}=$1;
 820                         }
 821                 elsif (/^--config=(.*)$/)
 822                         {
 823                         read_config $1;
 824                         }
 825                 elsif (/^-L(.*)$/)
 826                         {
 827                         push @{$useradd{LDFLAGS}}, $_;
 828                         }
 829                 elsif (/^-l(.*)$/ or /^-Wl,/)
 830                         {
 831                         push @{$useradd{LDLIBS}}, $_;
 832                         }
 833                 elsif (/^-framework$/)
 834                         {
 835                         push @{$useradd{LDLIBS}}, $_, shift(@argvcopy);
 836                         }
 837                 elsif (/^-rpath$/ or /^-R$/)
 838                         # -rpath is the OSF1 rpath flag
 839                         # -R is the old Solaris rpath flag
 840                         {
 841                         my $rpath = shift(@argvcopy) || "";
 842                         $rpath .= " " if $rpath ne "";
 843                         push @{$useradd{LDFLAGS}}, $_, $rpath;
 844                         }
 845                 elsif (/^-static$/)
 846                         {
 847                         push @{$useradd{LDFLAGS}}, $_;
 848                         $disabled{"dso"} = "forced";
 849                         $disabled{"pic"} = "forced";
 850                         $disabled{"shared"} = "forced";
 851                         $disabled{"threads"} = "forced";
 852                         }
 853                 elsif (/^-D(.*)$/)
 854                         {
 855                         push @{$useradd{CPPDEFINES}}, $1;
 856                         }
 857                 elsif (/^-I(.*)$/)
 858                         {
 859                         push @{$useradd{CPPINCLUDES}}, $1;
 860                         }
 861                 elsif (/^-Wp,$/)
 862                         {
 863                         push @{$useradd{CPPFLAGS}}, $1;
 864                         }
 865                 else    # common if (/^[-+]/), just pass down...
 866                         {
 867                         $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
 868                         push @{$useradd{CFLAGS}}, $_;
 869                         push @{$useradd{CXXFLAGS}}, $_;
 870                         }
 871                 }
 872         else
 873                 {
 874                 die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
 875                 $target=$_;
 876                 }
 877         unless ($_ eq $target || /^no-/ || /^disable-/)
 878                 {
 879                 # "no-..." follows later after implied deactivations
 880                 # have been derived.  (Don't take this too seriously,
 881                 # we really only write OPTIONS to the Makefile out of
 882                 # nostalgia.)
 883
 884                 if ($config{options} eq "")
 885                         { $config{options} = $_; }
 886                 else
 887                         { $config{options} .= " ".$_; }
 888                 }
 889
 890         if (defined($config{api}) && !exists $apitable->{$config{api}}) {
 891                 die "***** Unsupported api compatibility level: $config{api}\n",
 892         }
 893
 894         if (keys %deprecated_options)
 895                 {
 896                 warn "***** Deprecated options: ",
 897                         join(", ", keys %deprecated_options), "\n";
 898                 }
 899         if (keys %unsupported_options)
 900                 {
 901                 die "***** Unsupported options: ",
 902                         join(", ", keys %unsupported_options), "\n";
 903                 }
 904         }
 905
 906 # If any %useradd entry has been set, we must check that the "make
 907 # variables" haven't been set.  We start by checking of any %useradd entry
 908 # is set.
 909 if (grep { scalar @$_ > 0 } values %useradd) {
 910     # Hash of env / make variables names.  The possible values are:
 911     # 1 - "make vars"
 912     # 2 - %useradd entry set
 913     # 3 - both set
 914     my %detected_vars =
 915         map { my $v = 0;
 916               $v += 1 if $cmdvars{$_};
 917               $v += 2 if @{$useradd{$_}};
 918               $_ => $v }
 919         keys %useradd;
 920
 921     # If any of the corresponding "make variables" is set, we error
 922     if (grep { $_ & 1 } values %detected_vars) {
 923         my $names = join(', ', grep { $detected_vars{$_} > 0 }
 924                                sort keys %detected_vars);
 925         die <<"_____";
 926 ***** Mixing make variables and additional compiler/linker flags as
 927 ***** configure command line option is not permitted.
 928 ***** Affected make variables: $names
 929 _____
 930     }
 931 }
 932
 933 # Check through all supported command line variables to see if any of them
 934 # were set, and canonicalise the values we got.  If no compiler or linker
 935 # flag or anything else that affects %useradd was set, we also check the
 936 # environment for values.
 937 my $anyuseradd =
 938     grep { defined $_ && (ref $_ ne 'ARRAY' || @$_) } values %useradd;
 939 foreach (keys %user) {
 940     my $value = $cmdvars{$_};
 941     $value //= env($_) unless $anyuseradd;
 942     $value //=
 943         defined $user_synonyms{$_} ? $cmdvars{$user_synonyms{$_}} : undef;
 944     $value //= defined $user_synonyms{$_} ? env($user_synonyms{$_}) : undef
 945         unless $anyuseradd;
 946
 947     if (defined $value) {
 948         if (ref $user{$_} eq 'ARRAY') {
 949             $user{$_} = [ split /$list_separator_re/, $value ];
 950         } elsif (!defined $user{$_}) {
 951             $user{$_} = $value;
 952         }
 953     }
 954 }
 955
 956 if (grep { $_ =~ /(^|\s)-Wl,-rpath,/ } ($user{LDLIBS} ? @{$user{LDLIBS}} : ())
 957     && !$disabled{shared}
 958     && !($disabled{asan} && $disabled{msan} && $disabled{ubsan})) {
 959     die "***** Cannot simultaneously use -rpath, shared libraries, and\n",
 960         "***** any of asan, msan or ubsan\n";
 961 }
 962
 963 my @tocheckfor = (keys %disabled);
 964 while (@tocheckfor) {
 965     my %new_tocheckfor = ();
 966     my @cascade_copy = (@disable_cascades);
 967     while (@cascade_copy) {
 968         my ($test, $descendents) = (shift @cascade_copy, shift @cascade_copy);
 969         if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
 970             foreach(grep { !defined($disabled{$_}) } @$descendents) {
 971                 $new_tocheckfor{$_} = 1; $disabled{$_} = "forced";
 972             }
 973         }
 974     }
 975     @tocheckfor = (keys %new_tocheckfor);
 976 }
 977
 978 our $die = sub { die @_; };
 979 if ($target eq "TABLE") {
 980     local $die = sub { warn @_; };
 981     foreach (sort keys %table) {
 982         print_table_entry($_, "TABLE");
 983     }
 984     exit 0;
 985 }
 986
 987 if ($target eq "LIST") {
 988     foreach (sort keys %table) {
 989         print $_,"\n" unless $table{$_}->{template};
 990     }
 991     exit 0;
 992 }
 993
 994 if ($target eq "HASH") {
 995     local $die = sub { warn @_; };
 996     print "%table = (\n";
 997     foreach (sort keys %table) {
 998         print_table_entry($_, "HASH");
 999     }
1000     exit 0;
1001 }
1002
1003 print "Configuring OpenSSL version $config{version} ($config{version_num}) ";
1004 print "for $target\n";
1005
1006 if (scalar(@seed_sources) == 0) {
1007     print "Using os-specific seed configuration\n";
1008     push @seed_sources, 'os';
1009 }
1010 die "Cannot seed with none and anything else"
1011     if scalar(grep { $_ eq 'none' } @seed_sources) > 0
1012         && scalar(@seed_sources) > 1;
1013 push @{$config{openssl_other_defines}},
1014      map { (my $x = $_) =~ tr|[\-a-z]|[_A-Z]|; "OPENSSL_RAND_SEED_$x" }
1015         @seed_sources;
1016
1017 # Backward compatibility?
1018 if ($target =~ m/^CygWin32(-.*)$/) {
1019     $target = "Cygwin".$1;
1020 }
1021
1022 # Support for legacy targets having a name starting with 'debug-'
1023 my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
1024 if ($d) {
1025     $config{build_type} = "debug";
1026
1027     # If we do not find debug-foo in the table, the target is set to foo.
1028     if (!$table{$target}) {
1029         $target = $t;
1030     }
1031 }
1032 $config{target} = $target;
1033 my %target = resolve_config($target);
1034
1035 &usage if (!%target || $target{template});
1036
1037 foreach (keys %target_attr_translate) {
1038     $target{$target_attr_translate{$_}} = $target{$_}
1039         if $target{$_};
1040     delete $target{$_};
1041 }
1042
1043 %target = ( %{$table{DEFAULTS}}, %target );
1044
1045 # Make the flags to build DSOs the same as for shared libraries unless they
1046 # are already defined
1047 $target{module_cflags} = $target{shared_cflag} unless defined $target{module_cflags};
1048 $target{module_cxxflags} = $target{shared_cxxflag} unless defined $target{module_cxxflags};
1049 $target{module_ldflags} = $target{shared_ldflag} unless defined $target{module_ldflags};
1050 {
1051     my $shared_info_pl =
1052         catfile(dirname($0), "Configurations", "shared-info.pl");
1053     my %shared_info = read_eval_file($shared_info_pl);
1054     push @{$target{_conf_fname_int}}, $shared_info_pl;
1055     my $si = $target{shared_target};
1056     while (ref $si ne "HASH") {
1057         last if ! defined $si;
1058         if (ref $si eq "CODE") {
1059             $si = $si->();
1060         } else {
1061             $si = $shared_info{$si};
1062         }
1063     }
1064
1065     # Some of the 'shared_target' values don't have any entried in
1066     # %shared_info.  That's perfectly fine, AS LONG AS the build file
1067     # template knows how to handle this.  That is currently the case for
1068     # Windows and VMS.
1069     if (defined $si) {
1070         # Just as above, copy certain shared_* attributes to the corresponding
1071         # module_ attribute unless the latter is already defined
1072         $si->{module_cflags} = $si->{shared_cflag} unless defined $si->{module_cflags};
1073         $si->{module_cxxflags} = $si->{shared_cxxflag} unless defined $si->{module_cxxflags};
1074         $si->{module_ldflags} = $si->{shared_ldflag} unless defined $si->{module_ldflags};
1075         foreach (sort keys %$si) {
1076             $target{$_} = defined $target{$_}
1077                 ? add($si->{$_})->($target{$_})
1078                 : $si->{$_};
1079         }
1080     }
1081 }
1082
1083 my %conf_files = map { $_ => 1 } (@{$target{_conf_fname_int}});
1084 $config{conf_files} = [ sort keys %conf_files ];
1085
1086 foreach my $feature (@{$target{disable}}) {
1087     if (exists $deprecated_disablables{$feature}) {
1088         warn "***** config $target disables deprecated feature $feature\n";
1089     } elsif (!grep { $feature eq $_ } @disablables) {
1090         die "***** config $target disables unknown feature $feature\n";
1091     }
1092     $disabled{$feature} = 'config';
1093 }
1094 foreach my $feature (@{$target{enable}}) {
1095     if ("default" eq ($disabled{$_} // "")) {
1096         if (exists $deprecated_disablables{$feature}) {
1097             warn "***** config $target enables deprecated feature $feature\n";
1098         } elsif (!grep { $feature eq $_ } @disablables) {
1099             die "***** config $target enables unknown feature $feature\n";
1100         }
1101         delete $disabled{$_};
1102     }
1103 }
1104
1105 $target{CXXFLAGS}//=$target{CFLAGS} if $target{CXX};
1106 $target{cxxflags}//=$target{cflags} if $target{CXX};
1107 $target{exe_extension}="";
1108 $target{exe_extension}=".exe" if ($config{target} eq "DJGPP"
1109                                   || $config{target} =~ /^(?:Cygwin|mingw)/);
1110 $target{exe_extension}=".pm"  if ($config{target} =~ /vos/);
1111
1112 ($target{shared_extension_simple}=$target{shared_extension})
1113     =~ s|\.\$\(SHLIB_VERSION_NUMBER\)||;
1114 $target{dso_extension}=$target{shared_extension_simple};
1115 ($target{shared_import_extension}=$target{shared_extension_simple}.".a")
1116     if ($config{target} =~ /^(?:Cygwin|mingw)/);
1117
1118 # Allow overriding the names of some tools.  USE WITH CARE
1119 # Note: only Unix cares about HASHBANGPERL...  that explains
1120 # the default string.
1121 $config{perl} =    ($^O ne "VMS" ? $^X : "perl");
1122 foreach (keys %user) {
1123     my $ref_type = ref $user{$_};
1124
1125     # Temporary function.  Takes an intended ref type (empty string or "ARRAY")
1126     # and a value that's to be coerced into that type.
1127     my $mkvalue = sub {
1128         my $type = shift;
1129         my $value = shift;
1130         my $undef_p = shift;
1131
1132         die "Too many arguments for \$mkvalue" if @_;
1133
1134         while (ref $value eq 'CODE') {
1135             $value = $value->();
1136         }
1137
1138         if ($type eq 'ARRAY') {
1139             return undef unless defined $value;
1140             return undef if ref $value ne 'ARRAY' && !$value;
1141             return undef if ref $value eq 'ARRAY' && !@$value;
1142             return [ $value ] unless ref $value eq 'ARRAY';
1143         }
1144         return undef unless $value;
1145         return $value;
1146     };
1147
1148     $config{$_} =
1149         $mkvalue->($ref_type, $user{$_})
1150         || $mkvalue->($ref_type, $target{$_});
1151     delete $config{$_} unless defined $config{$_};
1152 }
1153
1154 # Allow overriding the build file name
1155 $config{build_file} = env('BUILDFILE') || $target{build_file} || "Makefile";
1156
1157 my %disabled_info = ();         # For configdata.pm
1158 foreach my $what (sort keys %disabled) {
1159     $config{options} .= " no-$what";
1160
1161     if (!grep { $what eq $_ } ( 'dso', 'threads', 'shared', 'pic',
1162                                 'dynamic-engine', 'makedepend',
1163                                 'zlib-dynamic', 'zlib', 'sse2' )) {
1164         (my $WHAT = uc $what) =~ s|-|_|g;
1165
1166         # Fix up C macro end names
1167         $WHAT = "RMD160" if $what eq "ripemd";
1168
1169         # fix-up crypto/directory name(s)
1170         $what = "ripemd" if $what eq "rmd160";
1171         $what = "whrlpool" if $what eq "whirlpool";
1172
1173         my $macro = $disabled_info{$what}->{macro} = "OPENSSL_NO_$WHAT";
1174
1175         if ((grep { $what eq $_ } @{$config{sdirs}})
1176                 && $what ne 'async' && $what ne 'err') {
1177             @{$config{sdirs}} = grep { $what ne $_} @{$config{sdirs}};
1178             $disabled_info{$what}->{skipped} = [ catdir('crypto', $what) ];
1179
1180             if ($what ne 'engine') {
1181                 push @{$config{openssl_algorithm_defines}}, $macro;
1182             } else {
1183                 @{$config{dirs}} = grep !/^engines$/, @{$config{dirs}};
1184                 push @{$disabled_info{engine}->{skipped}}, catdir('engines');
1185                 push @{$config{openssl_other_defines}}, $macro;
1186             }
1187         } else {
1188             push @{$config{openssl_other_defines}}, $macro;
1189         }
1190
1191     }
1192 }
1193
1194 # Make sure build_scheme is consistent.
1195 $target{build_scheme} = [ $target{build_scheme} ]
1196     if ref($target{build_scheme}) ne "ARRAY";
1197
1198 my ($builder, $builder_platform, @builder_opts) =
1199     @{$target{build_scheme}};
1200
1201 foreach my $checker (($builder_platform."-".$target{build_file}."-checker.pm",
1202                       $builder_platform."-checker.pm")) {
1203     my $checker_path = catfile($srcdir, "Configurations", $checker);
1204     if (-f $checker_path) {
1205         my $fn = $ENV{CONFIGURE_CHECKER_WARN}
1206             ? sub { warn $@; } : sub { die $@; };
1207         if (! do $checker_path) {
1208             if ($@) {
1209                 $fn->($@);
1210             } elsif ($!) {
1211                 $fn->($!);
1212             } else {
1213                 $fn->("The detected tools didn't match the platform\n");
1214             }
1215         }
1216         last;
1217     }
1218 }
1219
1220 push @{$config{defines}}, "NDEBUG"    if $config{build_type} eq "release";
1221
1222 if ($target =~ /^mingw/ && `$config{CC} --target-help 2>&1` =~ m/-mno-cygwin/m)
1223         {
1224         push @{$config{cflags}}, "-mno-cygwin";
1225         push @{$config{cxxflags}}, "-mno-cygwin" if $config{CXX};
1226         push @{$config{shared_ldflag}}, "-mno-cygwin";
1227         }
1228
1229 if ($target =~ /linux.*-mips/ && !$disabled{asm}
1230         && !grep { $_ !~ /-m(ips|arch=)/ } (@{$user{CFLAGS}},
1231                                             @{$useradd{CFLAGS}})) {
1232         # minimally required architecture flags for assembly modules
1233         my $value;
1234         $value = '-mips2' if ($target =~ /mips32/);
1235         $value = '-mips3' if ($target =~ /mips64/);
1236         unshift @{$config{cflags}}, $value;
1237         unshift @{$config{cxxflags}}, $value if $config{CXX};
1238 }
1239
1240 # If threads aren't disabled, check how possible they are
1241 unless ($disabled{threads}) {
1242     if ($auto_threads) {
1243         # Enabled by default, disable it forcibly if unavailable
1244         if ($target{thread_scheme} eq "(unknown)") {
1245             $disabled{threads} = "unavailable";
1246         }
1247     } else {
1248         # The user chose to enable threads explicitly, let's see
1249         # if there's a chance that's possible
1250         if ($target{thread_scheme} eq "(unknown)") {
1251             # If the user asked for "threads" and we don't have internal
1252             # knowledge how to do it, [s]he is expected to provide any
1253             # system-dependent compiler options that are necessary.  We
1254             # can't truly check that the given options are correct, but
1255             # we expect the user to know what [s]He is doing.
1256             if (!@{$user{CFLAGS}} && !@{$useradd{CFLAGS}}
1257                     && !@{$user{CPPDEFINES}} && !@{$useradd{CPPDEFINES}}) {
1258                 die "You asked for multi-threading support, but didn't\n"
1259                     ,"provide any system-specific compiler options\n";
1260             }
1261         }
1262     }
1263 }
1264
1265 # If threads still aren't disabled, add a C macro to ensure the source
1266 # code knows about it.  Any other flag is taken care of by the configs.
1267 unless($disabled{threads}) {
1268     push @{$config{openssl_thread_defines}}, "OPENSSL_THREADS";
1269 }
1270
1271 # With "deprecated" disable all deprecated features.
1272 if (defined($disabled{"deprecated"})) {
1273         $config{api} = $maxapi;
1274 }
1275
1276 my $no_shared_warn=0;
1277 if ($target{shared_target} eq "")
1278         {
1279         $no_shared_warn = 1
1280             if (!$disabled{shared} || !$disabled{"dynamic-engine"});
1281         $disabled{shared} = "no-shared-target";
1282         $disabled{pic} = $disabled{shared} = $disabled{"dynamic-engine"} =
1283             "no-shared-target";
1284         }
1285
1286 if ($disabled{"dynamic-engine"}) {
1287         push @{$config{openssl_other_defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
1288         $config{dynamic_engines} = 0;
1289 } else {
1290         push @{$config{openssl_other_defines}}, "OPENSSL_NO_STATIC_ENGINE";
1291         $config{dynamic_engines} = 1;
1292 }
1293
1294 unless ($disabled{asan}) {
1295     push @{$config{cflags}}, "-fsanitize=address";
1296     push @{$config{cxxflags}}, "-fsanitize=address" if $config{CXX};
1297 }
1298
1299 unless ($disabled{ubsan}) {
1300     # -DPEDANTIC or -fnosanitize=alignment may also be required on some
1301     # platforms.
1302     push @{$config{cflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all";
1303     push @{$config{cxxflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all"
1304         if $config{CXX};
1305 }
1306
1307 unless ($disabled{msan}) {
1308   push @{$config{cflags}}, "-fsanitize=memory";
1309   push @{$config{cxxflags}}, "-fsanitize=memory" if $config{CXX};
1310 }
1311
1312 unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
1313         && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
1314     push @{$config{cflags}}, "-fno-omit-frame-pointer", "-g";
1315     push @{$config{cxxflags}}, "-fno-omit-frame-pointer", "-g" if $config{CXX};
1316 }
1317 #
1318 # Platform fix-ups
1319 #
1320
1321 # This saves the build files from having to check
1322 if ($disabled{pic})
1323         {
1324         foreach (qw(shared_cflag shared_cxxflag shared_cppflag
1325                     shared_defines shared_includes shared_ldflag
1326                     module_cflags module_cxxflags module_cppflags
1327                     module_defines module_includes module_lflags))
1328                 {
1329                 delete $config{$_};
1330                 $target{$_} = "";
1331                 }
1332         }
1333 else
1334         {
1335         push @{$config{lib_defines}}, "OPENSSL_PIC";
1336         }
1337
1338 if ($target{sys_id} ne "")
1339         {
1340         push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
1341         }
1342
1343 unless ($disabled{asm}) {
1344     $target{cpuid_asm_src}=$table{DEFAULTS}->{cpuid_asm_src} if ($config{processor} eq "386");
1345     push @{$config{lib_defines}}, "OPENSSL_CPUID_OBJ" if ($target{cpuid_asm_src} ne "mem_clr.c");
1346
1347     $target{bn_asm_src} =~ s/\w+-gf2m.c// if (defined($disabled{ec2m}));
1348
1349     # bn-586 is the only one implementing bn_*_part_words
1350     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_PART_WORDS" if ($target{bn_asm_src} =~ /bn-586/);
1351     push @{$config{lib_defines}}, "OPENSSL_IA32_SSE2" if (!$disabled{sse2} && $target{bn_asm_src} =~ /86/);
1352
1353     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT" if ($target{bn_asm_src} =~ /-mont/);
1354     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT5" if ($target{bn_asm_src} =~ /-mont5/);
1355     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_GF2m" if ($target{bn_asm_src} =~ /-gf2m/);
1356
1357     if ($target{sha1_asm_src}) {
1358         push @{$config{lib_defines}}, "SHA1_ASM"   if ($target{sha1_asm_src} =~ /sx86/ || $target{sha1_asm_src} =~ /sha1/);
1359         push @{$config{lib_defines}}, "SHA256_ASM" if ($target{sha1_asm_src} =~ /sha256/);
1360         push @{$config{lib_defines}}, "SHA512_ASM" if ($target{sha1_asm_src} =~ /sha512/);
1361     }
1362     if ($target{keccak1600_asm_src} ne $table{DEFAULTS}->{keccak1600_asm_src}) {
1363         push @{$config{lib_defines}}, "KECCAK1600_ASM";
1364     }
1365     if ($target{rc4_asm_src} ne $table{DEFAULTS}->{rc4_asm_src}) {
1366         push @{$config{lib_defines}}, "RC4_ASM";
1367     }
1368     if ($target{md5_asm_src}) {
1369         push @{$config{lib_defines}}, "MD5_ASM";
1370     }
1371     $target{cast_asm_src}=$table{DEFAULTS}->{cast_asm_src} unless $disabled{pic}; # CAST assembler is not PIC
1372     if ($target{rmd160_asm_src}) {
1373         push @{$config{lib_defines}}, "RMD160_ASM";
1374     }
1375     if ($target{aes_asm_src}) {
1376         push @{$config{lib_defines}}, "AES_ASM" if ($target{aes_asm_src} =~ m/\baes-/);;
1377         # aes-ctr.fake is not a real file, only indication that assembler
1378         # module implements AES_ctr32_encrypt...
1379         push @{$config{lib_defines}}, "AES_CTR_ASM" if ($target{aes_asm_src} =~ s/\s*aes-ctr\.fake//);
1380         # aes-xts.fake indicates presence of AES_xts_[en|de]crypt...
1381         push @{$config{lib_defines}}, "AES_XTS_ASM" if ($target{aes_asm_src} =~ s/\s*aes-xts\.fake//);
1382         $target{aes_asm_src} =~ s/\s*(vpaes|aesni)-x86\.s//g if ($disabled{sse2});
1383         push @{$config{lib_defines}}, "VPAES_ASM" if ($target{aes_asm_src} =~ m/vpaes/);
1384         push @{$config{lib_defines}}, "BSAES_ASM" if ($target{aes_asm_src} =~ m/bsaes/);
1385     }
1386     if ($target{wp_asm_src} =~ /mmx/) {
1387         if ($config{processor} eq "386") {
1388             $target{wp_asm_src}=$table{DEFAULTS}->{wp_asm_src};
1389         } elsif (!$disabled{"whirlpool"}) {
1390             push @{$config{lib_defines}}, "WHIRLPOOL_ASM";
1391         }
1392     }
1393     if ($target{modes_asm_src} =~ /ghash-/) {
1394         push @{$config{lib_defines}}, "GHASH_ASM";
1395     }
1396     if ($target{ec_asm_src} =~ /ecp_nistz256/) {
1397         push @{$config{lib_defines}}, "ECP_NISTZ256_ASM";
1398     }
1399     if ($target{ec_asm_src} =~ /x25519/) {
1400         push @{$config{lib_defines}}, "X25519_ASM";
1401     }
1402     if ($target{padlock_asm_src} ne $table{DEFAULTS}->{padlock_asm_src}) {
1403         push @{$config{lib_defines}}, "PADLOCK_ASM";
1404     }
1405     if ($target{poly1305_asm_src} ne "") {
1406         push @{$config{lib_defines}}, "POLY1305_ASM";
1407     }
1408 }
1409
1410 my %predefined = compiler_predefined($config{CC});
1411
1412 # Check for makedepend capabilities.
1413 if (!$disabled{makedepend}) {
1414     if ($config{target} =~ /^(VC|vms)-/) {
1415         # For VC- and vms- targets, there's nothing more to do here.  The
1416         # functionality is hard coded in the corresponding build files for
1417         # cl (Windows) and CC/DECC (VMS).
1418     } elsif ($predefined{__GNUC__} >= 3) {
1419         # We know that GNU C version 3 and up as well as all clang
1420         # versions support dependency generation
1421         $config{makedepprog} = "\$(CROSS_COMPILE)$config{CC}";
1422     } else {
1423         # In all other cases, we look for 'makedepend', and disable the
1424         # capability if not found.
1425         $config{makedepprog} = which('makedepend');
1426         $disabled{makedepend} = "unavailable" unless $config{makedepprog};
1427     }
1428 }
1429
1430
1431 # Deal with bn_ops ###################################################
1432
1433 $config{bn_ll}                  =0;
1434 $config{export_var_as_fn}       =0;
1435 my $def_int="unsigned int";
1436 $config{rc4_int}                =$def_int;
1437 ($config{b64l},$config{b64},$config{b32})=(0,0,1);
1438
1439 my $count = 0;
1440 foreach (sort split(/\s+/,$target{bn_ops})) {
1441     $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
1442     $config{export_var_as_fn}=1                 if $_ eq 'EXPORT_VAR_AS_FN';
1443     $config{bn_ll}=1                            if $_ eq 'BN_LLONG';
1444     $config{rc4_int}="unsigned char"            if $_ eq 'RC4_CHAR';
1445     ($config{b64l},$config{b64},$config{b32})
1446         =(0,1,0)                                if $_ eq 'SIXTY_FOUR_BIT';
1447     ($config{b64l},$config{b64},$config{b32})
1448         =(1,0,0)                                if $_ eq 'SIXTY_FOUR_BIT_LONG';
1449     ($config{b64l},$config{b64},$config{b32})
1450         =(0,0,1)                                if $_ eq 'THIRTY_TWO_BIT';
1451 }
1452 die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
1453     if $count > 1;
1454
1455
1456 # Hack cflags for better warnings (dev option) #######################
1457
1458 # "Stringify" the C and C++ flags string.  This permits it to be made part of
1459 # a string and works as well on command lines.
1460 $config{cflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1461                         @{$config{cflags}} ];
1462 $config{cxxflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1463                           @{$config{cxxflags}} ] if $config{CXX};
1464
1465 if (defined($config{api})) {
1466     $config{openssl_api_defines} = [ "OPENSSL_MIN_API=".$apitable->{$config{api}} ];
1467     my $apiflag = sprintf("OPENSSL_API_COMPAT=%s", $apitable->{$config{api}});
1468     push @{$config{defines}}, $apiflag;
1469 }
1470
1471 if (defined($predefined{__clang__}) && !$disabled{asm}) {
1472     push @{$config{cflags}}, "-Qunused-arguments";
1473     push @{$config{cxxflags}}, "-Qunused-arguments" if $config{CXX};
1474 }
1475
1476 if ($strict_warnings)
1477         {
1478         my $wopt;
1479         my $gccver = $predefined{__GNUC__} // -1;
1480
1481         die "ERROR --strict-warnings requires gcc[>=4] or gcc-alike"
1482             unless $gccver >= 4;
1483         foreach $wopt (split /\s+/, $gcc_devteam_warn)
1484                 {
1485                 push @{$config{cflags}}, $wopt
1486                         unless grep { $_ eq $wopt } @{$config{cflags}};
1487                 push @{$config{cxxflags}}, $wopt
1488                         if ($config{CXX}
1489                             && !grep { $_ eq $wopt } @{$config{cxxflags}});
1490                 }
1491         if (defined($predefined{__clang__}))
1492                 {
1493                 foreach $wopt (split /\s+/, $clang_devteam_warn)
1494                         {
1495                         push @{$config{cflags}}, $wopt
1496                                 unless grep { $_ eq $wopt } @{$config{cflags}};
1497                         push @{$config{cxxflags}}, $wopt
1498                                 if ($config{CXX}
1499                                     && !grep { $_ eq $wopt } @{$config{cxxflags}});
1500                         }
1501                 }
1502         }
1503
1504 unless ($disabled{"crypto-mdebug-backtrace"})
1505         {
1506         foreach my $wopt (split /\s+/, $memleak_devteam_backtrace)
1507                 {
1508                 push @{$config{cflags}}, $wopt
1509                         unless grep { $_ eq $wopt } @{$config{cflags}};
1510                 push @{$config{cxxflags}}, $wopt
1511                         if ($config{CXX}
1512                             && !grep { $_ eq $wopt } @{$config{cxxflags}});
1513                 }
1514         if ($target =~ /^BSD-/)
1515                 {
1516                 push @{$config{ex_libs}}, "-lexecinfo";
1517                 }
1518         }
1519
1520 unless ($disabled{afalgeng}) {
1521     $config{afalgeng}="";
1522     if (grep { $_ eq 'afalgeng' } @{$target{enable}}) {
1523         my $minver = 4*10000 + 1*100 + 0;
1524         if ($config{CROSS_COMPILE} eq "") {
1525             my $verstr = `uname -r`;
1526             my ($ma, $mi1, $mi2) = split("\\.", $verstr);
1527             ($mi2) = $mi2 =~ /(\d+)/;
1528             my $ver = $ma*10000 + $mi1*100 + $mi2;
1529             if ($ver < $minver) {
1530                 $disabled{afalgeng} = "too-old-kernel";
1531             } else {
1532                 push @{$config{engdirs}}, "afalg";
1533             }
1534         } else {
1535             $disabled{afalgeng} = "cross-compiling";
1536         }
1537     } else {
1538         $disabled{afalgeng}  = "not-linux";
1539     }
1540 }
1541
1542 push @{$config{openssl_other_defines}}, "OPENSSL_NO_AFALGENG" if ($disabled{afalgeng});
1543
1544 # Finish up %config by appending things the user gave us on the command line
1545 # apart from "make variables"
1546 foreach (keys %useradd) {
1547     # The must all be lists, so we assert that here
1548     die "internal error: \$useradd{$_} isn't an ARRAY\n"
1549         unless ref $useradd{$_} eq 'ARRAY';
1550
1551     if (defined $config{$_}) {
1552         push @{$config{$_}}, @{$useradd{$_}};
1553     } else {
1554         $config{$_} = [ @{$useradd{$_}} ];
1555     }
1556 }
1557
1558 # ALL MODIFICATIONS TO %config and %target MUST BE DONE FROM HERE ON
1559
1560 # If we use the unified build, collect information from build.info files
1561 my %unified_info = ();
1562
1563 my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
1564 if ($builder eq "unified") {
1565     use with_fallback qw(Text::Template);
1566
1567     sub cleandir {
1568         my $base = shift;
1569         my $dir = shift;
1570         my $relativeto = shift || ".";
1571
1572         $dir = catdir($base,$dir) unless isabsolute($dir);
1573
1574         # Make sure the directories we're building in exists
1575         mkpath($dir);
1576
1577         my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
1578         #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
1579         return $res;
1580     }
1581
1582     sub cleanfile {
1583         my $base = shift;
1584         my $file = shift;
1585         my $relativeto = shift || ".";
1586
1587         $file = catfile($base,$file) unless isabsolute($file);
1588
1589         my $d = dirname($file);
1590         my $f = basename($file);
1591
1592         # Make sure the directories we're building in exists
1593         mkpath($d);
1594
1595         my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
1596         #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
1597         return $res;
1598     }
1599
1600     # Store the name of the template file we will build the build file from
1601     # in %config.  This may be useful for the build file itself.
1602     my @build_file_template_names =
1603         ( $builder_platform."-".$target{build_file}.".tmpl",
1604           $target{build_file}.".tmpl" );
1605     my @build_file_templates = ();
1606
1607     # First, look in the user provided directory, if given
1608     if (defined env($local_config_envname)) {
1609         @build_file_templates =
1610             map {
1611                 if ($^O eq 'VMS') {
1612                     # VMS environment variables are logical names,
1613                     # which can be used as is
1614                     $local_config_envname . ':' . $_;
1615                 } else {
1616                     catfile(env($local_config_envname), $_);
1617                 }
1618             }
1619             @build_file_template_names;
1620     }
1621     # Then, look in our standard directory
1622     push @build_file_templates,
1623         ( map { cleanfile($srcdir, catfile("Configurations", $_), $blddir) }
1624           @build_file_template_names );
1625
1626     my $build_file_template;
1627     for $_ (@build_file_templates) {
1628         $build_file_template = $_;
1629         last if -f $build_file_template;
1630
1631         $build_file_template = undef;
1632     }
1633     if (!defined $build_file_template) {
1634         die "*** Couldn't find any of:\n", join("\n", @build_file_templates), "\n";
1635     }
1636     $config{build_file_templates}
1637       = [ cleanfile($srcdir, catfile("Configurations", "common0.tmpl"),
1638                     $blddir),
1639           $build_file_template,
1640           cleanfile($srcdir, catfile("Configurations", "common.tmpl"),
1641                     $blddir) ];
1642
1643     my @build_infos = ( [ ".", "build.info" ] );
1644     foreach (@{$config{dirs}}) {
1645         push @build_infos, [ $_, "build.info" ]
1646             if (-f catfile($srcdir, $_, "build.info"));
1647     }
1648     foreach (@{$config{sdirs}}) {
1649         push @build_infos, [ catdir("crypto", $_), "build.info" ]
1650             if (-f catfile($srcdir, "crypto", $_, "build.info"));
1651     }
1652     foreach (@{$config{engdirs}}) {
1653         push @build_infos, [ catdir("engines", $_), "build.info" ]
1654             if (-f catfile($srcdir, "engines", $_, "build.info"));
1655     }
1656     foreach (@{$config{tdirs}}) {
1657         push @build_infos, [ catdir("test", $_), "build.info" ]
1658             if (-f catfile($srcdir, "test", $_, "build.info"));
1659     }
1660
1661     $config{build_infos} = [ ];
1662
1663     my %ordinals = ();
1664     foreach (@build_infos) {
1665         my $sourced = catdir($srcdir, $_->[0]);
1666         my $buildd = catdir($blddir, $_->[0]);
1667
1668         mkpath($buildd);
1669
1670         my $f = $_->[1];
1671         # The basic things we're trying to build
1672         my @programs = ();
1673         my @programs_install = ();
1674         my @libraries = ();
1675         my @libraries_install = ();
1676         my @engines = ();
1677         my @engines_install = ();
1678         my @scripts = ();
1679         my @scripts_install = ();
1680         my @extra = ();
1681         my @overrides = ();
1682         my @intermediates = ();
1683         my @rawlines = ();
1684
1685         my %sources = ();
1686         my %shared_sources = ();
1687         my %includes = ();
1688         my %depends = ();
1689         my %renames = ();
1690         my %sharednames = ();
1691         my %generate = ();
1692
1693         # We want to detect configdata.pm in the source tree, so we
1694         # don't use it if the build tree is different.
1695         my $src_configdata = cleanfile($srcdir, "configdata.pm", $blddir);
1696
1697         push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
1698         my $template =
1699             Text::Template->new(TYPE => 'FILE',
1700                                 SOURCE => catfile($sourced, $f),
1701                                 PREPEND => qq{use lib "$FindBin::Bin/util/perl";});
1702         die "Something went wrong with $sourced/$f: $!\n" unless $template;
1703         my @text =
1704             split /^/m,
1705             $template->fill_in(HASH => { config => \%config,
1706                                          target => \%target,
1707                                          disabled => \%disabled,
1708                                          withargs => \%withargs,
1709                                          builddir => abs2rel($buildd, $blddir),
1710                                          sourcedir => abs2rel($sourced, $blddir),
1711                                          buildtop => abs2rel($blddir, $blddir),
1712                                          sourcetop => abs2rel($srcdir, $blddir) },
1713                                DELIMITERS => [ "{-", "-}" ]);
1714
1715         # The top item of this stack has the following values
1716         # -2 positive already run and we found ELSE (following ELSIF should fail)
1717         # -1 positive already run (skip until ENDIF)
1718         # 0 negatives so far (if we're at a condition, check it)
1719         # 1 last was positive (don't skip lines until next ELSE, ELSIF or ENDIF)
1720         # 2 positive ELSE (following ELSIF should fail)
1721         my @skip = ();
1722         collect_information(
1723             collect_from_array([ @text ],
1724                                qr/\\$/ => sub { my $l1 = shift; my $l2 = shift;
1725                                                 $l1 =~ s/\\$//; $l1.$l2 }),
1726             # Info we're looking for
1727             qr/^\s*IF\[((?:\\.|[^\\\]])*)\]\s*$/
1728             => sub {
1729                 if (! @skip || $skip[$#skip] > 0) {
1730                     push @skip, !! $1;
1731                 } else {
1732                     push @skip, -1;
1733                 }
1734             },
1735             qr/^\s*ELSIF\[((?:\\.|[^\\\]])*)\]\s*$/
1736             => sub { die "ELSIF out of scope" if ! @skip;
1737                      die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
1738                      $skip[$#skip] = -1 if $skip[$#skip] != 0;
1739                      $skip[$#skip] = !! $1
1740                          if $skip[$#skip] == 0; },
1741             qr/^\s*ELSE\s*$/
1742             => sub { die "ELSE out of scope" if ! @skip;
1743                      $skip[$#skip] = -2 if $skip[$#skip] != 0;
1744                      $skip[$#skip] = 2 if $skip[$#skip] == 0; },
1745             qr/^\s*ENDIF\s*$/
1746             => sub { die "ENDIF out of scope" if ! @skip;
1747                      pop @skip; },
1748             qr/^\s*PROGRAMS(_NO_INST)?\s*=\s*(.*)\s*$/
1749             => sub {
1750                 if (!@skip || $skip[$#skip] > 0) {
1751                     my $install = $1;
1752                     my @x = tokenize($2);
1753                     push @programs, @x;
1754                     push @programs_install, @x unless $install;
1755                 }
1756             },
1757             qr/^\s*LIBS(_NO_INST)?\s*=\s*(.*)\s*$/
1758             => sub {
1759                 if (!@skip || $skip[$#skip] > 0) {
1760                     my $install = $1;
1761                     my @x = tokenize($2);
1762                     push @libraries, @x;
1763                     push @libraries_install, @x unless $install;
1764                 }
1765             },
1766             qr/^\s*ENGINES(_NO_INST)?\s*=\s*(.*)\s*$/
1767             => sub {
1768                 if (!@skip || $skip[$#skip] > 0) {
1769                     my $install = $1;
1770                     my @x = tokenize($2);
1771                     push @engines, @x;
1772                     push @engines_install, @x unless $install;
1773                 }
1774             },
1775             qr/^\s*SCRIPTS(_NO_INST)?\s*=\s*(.*)\s*$/
1776             => sub {
1777                 if (!@skip || $skip[$#skip] > 0) {
1778                     my $install = $1;
1779                     my @x = tokenize($2);
1780                     push @scripts, @x;
1781                     push @scripts_install, @x unless $install;
1782                 }
1783             },
1784             qr/^\s*EXTRA\s*=\s*(.*)\s*$/
1785             => sub { push @extra, tokenize($1)
1786                          if !@skip || $skip[$#skip] > 0 },
1787             qr/^\s*OVERRIDES\s*=\s*(.*)\s*$/
1788             => sub { push @overrides, tokenize($1)
1789                          if !@skip || $skip[$#skip] > 0 },
1790
1791             qr/^\s*ORDINALS\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/,
1792             => sub { push @{$ordinals{$1}}, tokenize($2)
1793                          if !@skip || $skip[$#skip] > 0 },
1794             qr/^\s*SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1795             => sub { push @{$sources{$1}}, tokenize($2)
1796                          if !@skip || $skip[$#skip] > 0 },
1797             qr/^\s*SHARED_SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1798             => sub { push @{$shared_sources{$1}}, tokenize($2)
1799                          if !@skip || $skip[$#skip] > 0 },
1800             qr/^\s*INCLUDE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1801             => sub { push @{$includes{$1}}, tokenize($2)
1802                          if !@skip || $skip[$#skip] > 0 },
1803             qr/^\s*DEPEND\[((?:\\.|[^\\\]])*)\]\s*=\s*(.*)\s*$/
1804             => sub { push @{$depends{$1}}, tokenize($2)
1805                          if !@skip || $skip[$#skip] > 0 },
1806             qr/^\s*GENERATE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1807             => sub { push @{$generate{$1}}, $2
1808                          if !@skip || $skip[$#skip] > 0 },
1809             qr/^\s*RENAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1810             => sub { push @{$renames{$1}}, tokenize($2)
1811                          if !@skip || $skip[$#skip] > 0 },
1812             qr/^\s*SHARED_NAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1813             => sub { push @{$sharednames{$1}}, tokenize($2)
1814                          if !@skip || $skip[$#skip] > 0 },
1815             qr/^\s*BEGINRAW\[((?:\\.|[^\\\]])+)\]\s*$/
1816             => sub {
1817                 my $lineiterator = shift;
1818                 my $target_kind = $1;
1819                 while (defined $lineiterator->()) {
1820                     s|\R$||;
1821                     if (/^\s*ENDRAW\[((?:\\.|[^\\\]])+)\]\s*$/) {
1822                         die "ENDRAW doesn't match BEGINRAW"
1823                             if $1 ne $target_kind;
1824                         last;
1825                     }
1826                     next if @skip && $skip[$#skip] <= 0;
1827                     push @rawlines,  $_
1828                         if ($target_kind eq $target{build_file}
1829                             || $target_kind eq $target{build_file}."(".$builder_platform.")");
1830                 }
1831             },
1832             qr/^\s*(?:#.*)?$/ => sub { },
1833             "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
1834             "BEFORE" => sub {
1835                 if ($buildinfo_debug) {
1836                     print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
1837                     print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1838                 }
1839             },
1840             "AFTER" => sub {
1841                 if ($buildinfo_debug) {
1842                     print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1843                 }
1844             },
1845             );
1846         die "runaway IF?" if (@skip);
1847
1848         foreach (keys %renames) {
1849             die "$_ renamed to more than one thing: "
1850                 ,join(" ", @{$renames{$_}}),"\n"
1851                 if scalar @{$renames{$_}} > 1;
1852             my $dest = cleanfile($buildd, $_, $blddir);
1853             my $to = cleanfile($buildd, $renames{$_}->[0], $blddir);
1854             die "$dest renamed to more than one thing: "
1855                 ,$unified_info{rename}->{$dest}, $to
1856                 unless !defined($unified_info{rename}->{$dest})
1857                 or $unified_info{rename}->{$dest} eq $to;
1858             $unified_info{rename}->{$dest} = $to;
1859         }
1860
1861         foreach (@programs) {
1862             my $program = cleanfile($buildd, $_, $blddir);
1863             if ($unified_info{rename}->{$program}) {
1864                 $program = $unified_info{rename}->{$program};
1865             }
1866             $unified_info{programs}->{$program} = 1;
1867         }
1868
1869         foreach (@programs_install) {
1870             my $program = cleanfile($buildd, $_, $blddir);
1871             if ($unified_info{rename}->{$program}) {
1872                 $program = $unified_info{rename}->{$program};
1873             }
1874             $unified_info{install}->{programs}->{$program} = 1;
1875         }
1876
1877         foreach (@libraries) {
1878             my $library = cleanfile($buildd, $_, $blddir);
1879             if ($unified_info{rename}->{$library}) {
1880                 $library = $unified_info{rename}->{$library};
1881             }
1882             $unified_info{libraries}->{$library} = 1;
1883         }
1884
1885         foreach (@libraries_install) {
1886             my $library = cleanfile($buildd, $_, $blddir);
1887             if ($unified_info{rename}->{$library}) {
1888                 $library = $unified_info{rename}->{$library};
1889             }
1890             $unified_info{install}->{libraries}->{$library} = 1;
1891         }
1892
1893         die <<"EOF" if scalar @engines and !$config{dynamic_engines};
1894 ENGINES can only be used if configured with 'dynamic-engine'.
1895 This is usually a fault in a build.info file.
1896 EOF
1897         foreach (@engines) {
1898             my $library = cleanfile($buildd, $_, $blddir);
1899             if ($unified_info{rename}->{$library}) {
1900                 $library = $unified_info{rename}->{$library};
1901             }
1902             $unified_info{engines}->{$library} = 1;
1903         }
1904
1905         foreach (@engines_install) {
1906             my $library = cleanfile($buildd, $_, $blddir);
1907             if ($unified_info{rename}->{$library}) {
1908                 $library = $unified_info{rename}->{$library};
1909             }
1910             $unified_info{install}->{engines}->{$library} = 1;
1911         }
1912
1913         foreach (@scripts) {
1914             my $script = cleanfile($buildd, $_, $blddir);
1915             if ($unified_info{rename}->{$script}) {
1916                 $script = $unified_info{rename}->{$script};
1917             }
1918             $unified_info{scripts}->{$script} = 1;
1919         }
1920
1921         foreach (@scripts_install) {
1922             my $script = cleanfile($buildd, $_, $blddir);
1923             if ($unified_info{rename}->{$script}) {
1924                 $script = $unified_info{rename}->{$script};
1925             }
1926             $unified_info{install}->{scripts}->{$script} = 1;
1927         }
1928
1929         foreach (@extra) {
1930             my $extra = cleanfile($buildd, $_, $blddir);
1931             $unified_info{extra}->{$extra} = 1;
1932         }
1933
1934         foreach (@overrides) {
1935             my $override = cleanfile($buildd, $_, $blddir);
1936             $unified_info{overrides}->{$override} = 1;
1937         }
1938
1939         push @{$unified_info{rawlines}}, @rawlines;
1940
1941         unless ($disabled{shared}) {
1942             # Check sharednames.
1943             foreach (keys %sharednames) {
1944                 my $dest = cleanfile($buildd, $_, $blddir);
1945                 if ($unified_info{rename}->{$dest}) {
1946                     $dest = $unified_info{rename}->{$dest};
1947                 }
1948                 die "shared_name for $dest with multiple values: "
1949                     ,join(" ", @{$sharednames{$_}}),"\n"
1950                     if scalar @{$sharednames{$_}} > 1;
1951                 my $to = cleanfile($buildd, $sharednames{$_}->[0], $blddir);
1952                 die "shared_name found for a library $dest that isn't defined\n"
1953                     unless $unified_info{libraries}->{$dest};
1954                 die "shared_name for $dest with multiple values: "
1955                     ,$unified_info{sharednames}->{$dest}, ", ", $to
1956                     unless !defined($unified_info{sharednames}->{$dest})
1957                     or $unified_info{sharednames}->{$dest} eq $to;
1958                 $unified_info{sharednames}->{$dest} = $to;
1959             }
1960
1961             # Additionally, we set up sharednames for libraries that don't
1962             # have any, as themselves.  Only for libraries that aren't
1963             # explicitly static.
1964             foreach (grep !/\.a$/, keys %{$unified_info{libraries}}) {
1965                 if (!defined $unified_info{sharednames}->{$_}) {
1966                     $unified_info{sharednames}->{$_} = $_
1967                 }
1968             }
1969
1970             # Check that we haven't defined any library as both shared and
1971             # explicitly static.  That is forbidden.
1972             my @doubles = ();
1973             foreach (grep /\.a$/, keys %{$unified_info{libraries}}) {
1974                 (my $l = $_) =~ s/\.a$//;
1975                 push @doubles, $l if defined $unified_info{sharednames}->{$l};
1976             }
1977             die "these libraries are both explicitly static and shared:\n  ",
1978                 join(" ", @doubles), "\n"
1979                 if @doubles;
1980         }
1981
1982         foreach (keys %sources) {
1983             my $dest = $_;
1984             my $ddest = cleanfile($buildd, $_, $blddir);
1985             if ($unified_info{rename}->{$ddest}) {
1986                 $ddest = $unified_info{rename}->{$ddest};
1987             }
1988             foreach (@{$sources{$dest}}) {
1989                 my $s = cleanfile($sourced, $_, $blddir);
1990
1991                 # If it isn't in the source tree, we assume it's generated
1992                 # in the build tree
1993                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
1994                     $s = cleanfile($buildd, $_, $blddir);
1995                 }
1996                 # We recognise C++, C and asm files
1997                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
1998                     my $o = $_;
1999                     $o =~ s/\.[csS]$/.o/; # C and assembler
2000                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2001                     $o = cleanfile($buildd, $o, $blddir);
2002                     $unified_info{sources}->{$ddest}->{$o} = 1;
2003                     $unified_info{sources}->{$o}->{$s} = 1;
2004                 } elsif ($s =~ /\.rc$/) {
2005                     # We also recognise resource files
2006                     my $o = $_;
2007                     $o =~ s/\.rc$/.res/; # Resource configuration
2008                     my $o = cleanfile($buildd, $o, $blddir);
2009                     $unified_info{sources}->{$ddest}->{$o} = 1;
2010                     $unified_info{sources}->{$o}->{$s} = 1;
2011                 } else {
2012                     $unified_info{sources}->{$ddest}->{$s} = 1;
2013                 }
2014             }
2015         }
2016
2017         foreach (keys %shared_sources) {
2018             my $dest = $_;
2019             my $ddest = cleanfile($buildd, $_, $blddir);
2020             if ($unified_info{rename}->{$ddest}) {
2021                 $ddest = $unified_info{rename}->{$ddest};
2022             }
2023             foreach (@{$shared_sources{$dest}}) {
2024                 my $s = cleanfile($sourced, $_, $blddir);
2025
2026                 # If it isn't in the source tree, we assume it's generated
2027                 # in the build tree
2028                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
2029                     $s = cleanfile($buildd, $_, $blddir);
2030                 }
2031
2032                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2033                     # We recognise C++, C and asm files
2034                     my $o = $_;
2035                     $o =~ s/\.[csS]$/.o/; # C and assembler
2036                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2037                     $o = cleanfile($buildd, $o, $blddir);
2038                     $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2039                     $unified_info{sources}->{$o}->{$s} = 1;
2040                 } elsif ($s =~ /\.rc$/) {
2041                     # We also recognise resource files
2042                     my $o = $_;
2043                     $o =~ s/\.rc$/.res/; # Resource configuration
2044                     my $o = cleanfile($buildd, $o, $blddir);
2045                     $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2046                     $unified_info{sources}->{$o}->{$s} = 1;
2047                 } elsif ($s =~ /\.(def|map|opt)$/) {
2048                     # We also recognise .def / .map / .opt files
2049                     # We know they are generated files
2050                     my $def = cleanfile($buildd, $s, $blddir);
2051                     $unified_info{shared_sources}->{$ddest}->{$def} = 1;
2052                 } else {
2053                     die "unrecognised source file type for shared library: $s\n";
2054                 }
2055             }
2056         }
2057
2058         foreach (keys %generate) {
2059             my $dest = $_;
2060             my $ddest = cleanfile($buildd, $_, $blddir);
2061             if ($unified_info{rename}->{$ddest}) {
2062                 $ddest = $unified_info{rename}->{$ddest};
2063             }
2064             die "more than one generator for $dest: "
2065                     ,join(" ", @{$generate{$_}}),"\n"
2066                     if scalar @{$generate{$_}} > 1;
2067             my @generator = split /\s+/, $generate{$dest}->[0];
2068             $generator[0] = cleanfile($sourced, $generator[0], $blddir),
2069             $unified_info{generate}->{$ddest} = [ @generator ];
2070         }
2071
2072         foreach (keys %depends) {
2073             my $dest = $_;
2074             my $ddest = $dest eq "" ? "" : cleanfile($sourced, $_, $blddir);
2075
2076             # If the destination doesn't exist in source, it can only be
2077             # a generated file in the build tree.
2078             if ($ddest ne "" && ($ddest eq $src_configdata || ! -f $ddest)) {
2079                 $ddest = cleanfile($buildd, $_, $blddir);
2080                 if ($unified_info{rename}->{$ddest}) {
2081                     $ddest = $unified_info{rename}->{$ddest};
2082                 }
2083             }
2084             foreach (@{$depends{$dest}}) {
2085                 my $d = cleanfile($sourced, $_, $blddir);
2086
2087                 # If we know it's generated, or assume it is because we can't
2088                 # find it in the source tree, we set file we depend on to be
2089                 # in the build tree rather than the source tree, and assume
2090                 # and that there are lines to build it in a BEGINRAW..ENDRAW
2091                 # section or in the Makefile template.
2092                 if ($d eq $src_configdata
2093                     || ! -f $d
2094                     || (grep { $d eq $_ }
2095                         map { cleanfile($srcdir, $_, $blddir) }
2096                         grep { /\.h$/ } keys %{$unified_info{generate}})) {
2097                     $d = cleanfile($buildd, $_, $blddir);
2098                 }
2099                 # Take note if the file to depend on is being renamed
2100                 # Take extra care with files ending with .a, they should
2101                 # be treated without that extension, and the extension
2102                 # should be added back after treatment.
2103                 $d =~ /(\.a)?$/;
2104                 my $e = $1 // "";
2105                 $d = $`;
2106                 if ($unified_info{rename}->{$d}) {
2107                     $d = $unified_info{rename}->{$d};
2108                 }
2109                 $d .= $e;
2110                 $unified_info{depends}->{$ddest}->{$d} = 1;
2111             }
2112         }
2113
2114         foreach (keys %includes) {
2115             my $dest = $_;
2116             my $ddest = cleanfile($sourced, $_, $blddir);
2117
2118             # If the destination doesn't exist in source, it can only be
2119             # a generated file in the build tree.
2120             if ($ddest eq $src_configdata || ! -f $ddest) {
2121                 $ddest = cleanfile($buildd, $_, $blddir);
2122                 if ($unified_info{rename}->{$ddest}) {
2123                     $ddest = $unified_info{rename}->{$ddest};
2124                 }
2125             }
2126             foreach (@{$includes{$dest}}) {
2127                 my $is = cleandir($sourced, $_, $blddir);
2128                 my $ib = cleandir($buildd, $_, $blddir);
2129                 push @{$unified_info{includes}->{$ddest}->{source}}, $is
2130                     unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
2131                 push @{$unified_info{includes}->{$ddest}->{build}}, $ib
2132                     unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
2133             }
2134         }
2135     }
2136
2137     my $ordinals_text = join(', ', sort keys %ordinals);
2138     warn <<"EOF" if $ordinals_text;
2139
2140 WARNING: ORDINALS were specified for $ordinals_text
2141 They are ignored and should be replaced with a combination of GENERATE,
2142 DEPEND and SHARED_SOURCE.
2143 EOF
2144
2145     # Massage the result
2146
2147     # If we depend on a header file or a perl module, add an inclusion of
2148     # its directory to allow smoothe inclusion
2149     foreach my $dest (keys %{$unified_info{depends}}) {
2150         next if $dest eq "";
2151         foreach my $d (keys %{$unified_info{depends}->{$dest}}) {
2152             next unless $d =~ /\.(h|pm)$/;
2153             my $i = dirname($d);
2154             my $spot =
2155                 $d eq "configdata.pm" || defined($unified_info{generate}->{$d})
2156                 ? 'build' : 'source';
2157             push @{$unified_info{includes}->{$dest}->{$spot}}, $i
2158                 unless grep { $_ eq $i } @{$unified_info{includes}->{$dest}->{$spot}};
2159         }
2160     }
2161
2162     # Trickle down includes placed on libraries, engines and programs to
2163     # their sources (i.e. object files)
2164     foreach my $dest (keys %{$unified_info{engines}},
2165                       keys %{$unified_info{libraries}},
2166                       keys %{$unified_info{programs}}) {
2167         foreach my $k (("source", "build")) {
2168             next unless defined($unified_info{includes}->{$dest}->{$k});
2169             my @incs = reverse @{$unified_info{includes}->{$dest}->{$k}};
2170             foreach my $obj (grep /\.o$/,
2171                              (keys %{$unified_info{sources}->{$dest}},
2172                               keys %{$unified_info{shared_sources}->{$dest}})) {
2173                 foreach my $inc (@incs) {
2174                     unshift @{$unified_info{includes}->{$obj}->{$k}}, $inc
2175                         unless grep { $_ eq $inc } @{$unified_info{includes}->{$obj}->{$k}};
2176                 }
2177             }
2178         }
2179         delete $unified_info{includes}->{$dest};
2180     }
2181
2182     ### Make unified_info a bit more efficient
2183     # One level structures
2184     foreach (("programs", "libraries", "engines", "scripts", "extra", "overrides")) {
2185         $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
2186     }
2187     # Two level structures
2188     foreach my $l1 (("install", "sources", "shared_sources", "ldadd", "depends")) {
2189         foreach my $l2 (sort keys %{$unified_info{$l1}}) {
2190             $unified_info{$l1}->{$l2} =
2191                 [ sort keys %{$unified_info{$l1}->{$l2}} ];
2192         }
2193     }
2194     # Includes
2195     foreach my $dest (sort keys %{$unified_info{includes}}) {
2196         if (defined($unified_info{includes}->{$dest}->{build})) {
2197             my @source_includes = ();
2198             @source_includes = ( @{$unified_info{includes}->{$dest}->{source}} )
2199                 if defined($unified_info{includes}->{$dest}->{source});
2200             $unified_info{includes}->{$dest} =
2201                 [ @{$unified_info{includes}->{$dest}->{build}} ];
2202             foreach my $inc (@source_includes) {
2203                 push @{$unified_info{includes}->{$dest}}, $inc
2204                     unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
2205             }
2206         } else {
2207             $unified_info{includes}->{$dest} =
2208                 [ @{$unified_info{includes}->{$dest}->{source}} ];
2209         }
2210     }
2211 }
2212
2213 # For the schemes that need it, we provide the old *_obj configs
2214 # from the *_asm_obj ones
2215 foreach (grep /_(asm|aux)_src$/, keys %target) {
2216     my $src = $_;
2217     (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
2218     $target{$obj} = $target{$src};
2219     $target{$obj} =~ s/\.[csS]\b/.o/g; # C and assembler
2220     $target{$obj} =~ s/\.(cc|cpp)\b/_cc.o/g; # C++
2221 }
2222
2223 # Write down our configuration where it fits #########################
2224
2225 print "Creating configdata.pm\n";
2226 open(OUT,">configdata.pm") || die "unable to create configdata.pm: $!\n";
2227 print OUT <<"EOF";
2228 #! $config{HASHBANGPERL}
2229
2230 package configdata;
2231
2232 use strict;
2233 use warnings;
2234
2235 use Exporter;
2236 #use vars qw(\@ISA \@EXPORT);
2237 our \@ISA = qw(Exporter);
2238 our \@EXPORT = qw(\%config \%target \%disabled \%withargs \%unified_info \@disablables);
2239
2240 EOF
2241 print OUT "our %config = (\n";
2242 foreach (sort keys %config) {
2243     if (ref($config{$_}) eq "ARRAY") {
2244         print OUT "  ", $_, " => [ ", join(", ",
2245                                            map { quotify("perl", $_) }
2246                                            @{$config{$_}}), " ],\n";
2247     } elsif (ref($config{$_}) eq "HASH") {
2248         print OUT "  ", $_, " => {";
2249         if (scalar keys %{$config{$_}} > 0) {
2250             print OUT "\n";
2251             foreach my $key (sort keys %{$config{$_}}) {
2252                 print OUT "      ",
2253                     join(" => ",
2254                          quotify("perl", $key),
2255                          defined $config{$_}->{$key}
2256                              ? quotify("perl", $config{$_}->{$key})
2257                              : "undef");
2258                 print OUT ",\n";
2259             }
2260             print OUT "  ";
2261         }
2262         print OUT "},\n";
2263     } else {
2264         print OUT "  ", $_, " => ", quotify("perl", $config{$_}), ",\n"
2265     }
2266 }
2267 print OUT <<"EOF";
2268 );
2269
2270 EOF
2271 print OUT "our %target = (\n";
2272 foreach (sort keys %target) {
2273     if (ref($target{$_}) eq "ARRAY") {
2274         print OUT "  ", $_, " => [ ", join(", ",
2275                                            map { quotify("perl", $_) }
2276                                            @{$target{$_}}), " ],\n";
2277     } else {
2278         print OUT "  ", $_, " => ", quotify("perl", $target{$_}), ",\n"
2279     }
2280 }
2281 print OUT <<"EOF";
2282 );
2283
2284 EOF
2285 print OUT "our \%available_protocols = (\n";
2286 print OUT "  tls => [ ", join(", ", map { quotify("perl", $_) } @tls), " ],\n";
2287 print OUT "  dtls => [ ", join(", ", map { quotify("perl", $_) } @dtls), " ],\n";
2288 print OUT <<"EOF";
2289 );
2290
2291 EOF
2292 print OUT "our \@disablables = (\n";
2293 foreach (@disablables) {
2294     print OUT "  ", quotify("perl", $_), ",\n";
2295 }
2296 print OUT <<"EOF";
2297 );
2298
2299 EOF
2300 print OUT "our \%disabled = (\n";
2301 foreach (sort keys %disabled) {
2302     print OUT "  ", quotify("perl", $_), " => ", quotify("perl", $disabled{$_}), ",\n";
2303 }
2304 print OUT <<"EOF";
2305 );
2306
2307 EOF
2308 print OUT "our %withargs = (\n";
2309 foreach (sort keys %withargs) {
2310     if (ref($withargs{$_}) eq "ARRAY") {
2311         print OUT "  ", $_, " => [ ", join(", ",
2312                                            map { quotify("perl", $_) }
2313                                            @{$withargs{$_}}), " ],\n";
2314     } else {
2315         print OUT "  ", $_, " => ", quotify("perl", $withargs{$_}), ",\n"
2316     }
2317 }
2318 print OUT <<"EOF";
2319 );
2320
2321 EOF
2322 if ($builder eq "unified") {
2323     my $recurse;
2324     $recurse = sub {
2325         my $indent = shift;
2326         foreach (@_) {
2327             if (ref $_ eq "ARRAY") {
2328                 print OUT " "x$indent, "[\n";
2329                 foreach (@$_) {
2330                     $recurse->($indent + 4, $_);
2331                 }
2332                 print OUT " "x$indent, "],\n";
2333             } elsif (ref $_ eq "HASH") {
2334                 my %h = %$_;
2335                 print OUT " "x$indent, "{\n";
2336                 foreach (sort keys %h) {
2337                     if (ref $h{$_} eq "") {
2338                         print OUT " "x($indent + 4), quotify("perl", $_), " => ", quotify("perl", $h{$_}), ",\n";
2339                     } else {
2340                         print OUT " "x($indent + 4), quotify("perl", $_), " =>\n";
2341                         $recurse->($indent + 8, $h{$_});
2342                     }
2343                 }
2344                 print OUT " "x$indent, "},\n";
2345             } else {
2346                 print OUT " "x$indent, quotify("perl", $_), ",\n";
2347             }
2348         }
2349     };
2350     print OUT "our %unified_info = (\n";
2351     foreach (sort keys %unified_info) {
2352         if (ref $unified_info{$_} eq "") {
2353             print OUT " "x4, quotify("perl", $_), " => ", quotify("perl", $unified_info{$_}), ",\n";
2354         } else {
2355             print OUT " "x4, quotify("perl", $_), " =>\n";
2356             $recurse->(8, $unified_info{$_});
2357         }
2358     }
2359     print OUT <<"EOF";
2360 );
2361
2362 EOF
2363 }
2364 print OUT
2365     "# The following data is only used when this files is use as a script\n";
2366 print OUT "my \@makevars = (\n";
2367 foreach (sort keys %user) {
2368     print OUT "    '",$_,"',\n";
2369 }
2370 print OUT ");\n";
2371 print OUT "my \%disabled_info = (\n";
2372 foreach my $what (sort keys %disabled_info) {
2373     print OUT "    '$what' => {\n";
2374     foreach my $info (sort keys %{$disabled_info{$what}}) {
2375         if (ref $disabled_info{$what}->{$info} eq 'ARRAY') {
2376             print OUT "        $info => [ ",
2377                 join(', ', map { "'$_'" } @{$disabled_info{$what}->{$info}}),
2378                 " ],\n";
2379         } else {
2380             print OUT "        $info => '", $disabled_info{$what}->{$info},
2381                 "',\n";
2382         }
2383     }
2384     print OUT "    },\n";
2385 }
2386 print OUT ");\n";
2387 print OUT 'my @user_crossable = qw( ', join (' ', @user_crossable), " );\n";
2388 print OUT << 'EOF';
2389 # If run directly, we can give some answers, and even reconfigure
2390 unless (caller) {
2391     use Getopt::Long;
2392     use File::Spec::Functions;
2393     use File::Basename;
2394     use Pod::Usage;
2395
2396     my $here = dirname($0);
2397
2398     my $dump = undef;
2399     my $cmdline = undef;
2400     my $options = undef;
2401     my $target = undef;
2402     my $envvars = undef;
2403     my $makevars = undef;
2404     my $buildparams = undef;
2405     my $reconf = undef;
2406     my $verbose = undef;
2407     my $help = undef;
2408     my $man = undef;
2409     GetOptions('dump|d'                 => \$dump,
2410                'command-line|c'         => \$cmdline,
2411                'options|o'              => \$options,
2412                'target|t'               => \$target,
2413                'environment|e'          => \$envvars,
2414                'make-variables|m'       => \$makevars,
2415                'build-parameters|b'     => \$buildparams,
2416                'reconfigure|reconf|r'   => \$reconf,
2417                'verbose|v'              => \$verbose,
2418                'help'                   => \$help,
2419                'man'                    => \$man)
2420         or die "Errors in command line arguments\n";
2421
2422     unless ($dump || $cmdline || $options || $target || $envvars || $makevars
2423             || $buildparams || $reconf || $verbose || $help || $man) {
2424         print STDERR <<"_____";
2425 You must give at least one option.
2426 For more information, do '$0 --help'
2427 _____
2428         exit(2);
2429     }
2430
2431     if ($help) {
2432         pod2usage(-exitval => 0,
2433                   -verbose => 1);
2434     }
2435     if ($man) {
2436         pod2usage(-exitval => 0,
2437                   -verbose => 2);
2438     }
2439     if ($dump || $cmdline) {
2440         print "\nCommand line (with current working directory = $here):\n\n";
2441         print '    ',join(' ',
2442                           $config{perl},
2443                           catfile($config{sourcedir}, 'Configure'),
2444                           @{$config{perlargv}}), "\n";
2445         print "\nPerl information:\n\n";
2446         print '    ',$config{perl_cmd},"\n";
2447         print '    ',$config{perl_version},' for ',$config{perl_archname},"\n";
2448     }
2449     if ($dump || $options) {
2450         my $longest = 0;
2451         my $longest2 = 0;
2452         foreach my $what (@disablables) {
2453             $longest = length($what) if $longest < length($what);
2454             $longest2 = length($disabled{$what})
2455                 if $disabled{$what} && $longest2 < length($disabled{$what});
2456         }
2457         print "\nEnabled features:\n\n";
2458         foreach my $what (@disablables) {
2459             print "    $what\n" unless $disabled{$what};
2460         }
2461         print "\nDisabled features:\n\n";
2462         foreach my $what (@disablables) {
2463             if ($disabled{$what}) {
2464                 print "    $what", ' ' x ($longest - length($what) + 1),
2465                     "[$disabled{$what}]", ' ' x ($longest2 - length($disabled{$what}) + 1);
2466                 print $disabled_info{$what}->{macro}
2467                     if $disabled_info{$what}->{macro};
2468                 print ' (skip ',
2469                     join(', ', @{$disabled_info{$what}->{skipped}}),
2470                     ')'
2471                     if $disabled_info{$what}->{skipped};
2472                 print "\n";
2473             }
2474         }
2475     }
2476     if ($dump || $target) {
2477         print "\nConfig target attributes:\n\n";
2478         foreach (sort keys %target) {
2479             next if $_ =~ m|^_| || $_ eq 'template';
2480             my $quotify = sub {
2481                 map { (my $x = $_) =~ s|([\\\$\@"])|\\$1|g; "\"$x\""} @_;
2482             };
2483             print '    ', $_, ' => ';
2484             if (ref($target{$_}) eq "ARRAY") {
2485                 print '[ ', join(', ', $quotify->(@{$target{$_}})), " ],\n";
2486             } else {
2487                 print $quotify->($target{$_}), ",\n"
2488             }
2489         }
2490     }
2491     if ($dump || $envvars) {
2492         print "\nRecorded environment:\n\n";
2493         foreach (sort keys %{$config{perlenv}}) {
2494             print '    ',$_,' = ',($config{perlenv}->{$_} || ''),"\n";
2495         }
2496     }
2497     if ($dump || $makevars) {
2498         print "\nMakevars:\n\n";
2499         foreach my $var (@makevars) {
2500             my $prefix = '';
2501             $prefix = $config{CROSS_COMPILE}
2502                 if grep { $var eq $_ } @user_crossable;
2503             $prefix //= '';
2504             print '    ',$var,' ' x (16 - length $var),'= ',
2505                 (ref $config{$var} eq 'ARRAY'
2506                  ? join(' ', @{$config{$var}})
2507                  : $prefix.$config{$var}),
2508                 "\n"
2509                 if defined $config{$var};
2510         }
2511
2512         my @buildfile = ($config{builddir}, $config{build_file});
2513         unshift @buildfile, $here
2514             unless file_name_is_absolute($config{builddir});
2515         my $buildfile = canonpath(catdir(@buildfile));
2516         print <<"_____";
2517
2518 NOTE: These variables only represent the configuration view.  The build file
2519 template may have processed these variables further, please have a look at the
2520 build file for more exact data:
2521     $buildfile
2522 _____
2523     }
2524     if ($dump || $buildparams) {
2525         my @buildfile = ($config{builddir}, $config{build_file});
2526         unshift @buildfile, $here
2527             unless file_name_is_absolute($config{builddir});
2528         print "\nbuild file:\n\n";
2529         print "    ", canonpath(catfile(@buildfile)),"\n";
2530
2531         print "\nbuild file templates:\n\n";
2532         foreach (@{$config{build_file_templates}}) {
2533             my @tmpl = ($_);
2534             unshift @tmpl, $here
2535                 unless file_name_is_absolute($config{sourcedir});
2536             print '    ',canonpath(catfile(@tmpl)),"\n";
2537         }
2538     }
2539     if ($reconf) {
2540         if ($verbose) {
2541             print 'Reconfiguring with: ', join(' ',@{$config{perlargv}}), "\n";
2542             foreach (sort keys %{$config{perlenv}}) {
2543                 print '    ',$_,' = ',($config{perlenv}->{$_} || ""),"\n";
2544             }
2545         }
2546
2547         chdir $here;
2548         exec $^X,catfile($config{sourcedir}, 'Configure'),'reconf';
2549     }
2550 }
2551
2552 1;
2553
2554 __END__
2555
2556 =head1 NAME
2557
2558 configdata.pm - configuration data for OpenSSL builds
2559
2560 =head1 SYNOPSIS
2561
2562 Interactive:
2563
2564   perl configdata.pm [options]
2565
2566 As data bank module:
2567
2568   use configdata;
2569
2570 =head1 DESCRIPTION
2571
2572 This module can be used in two modes, interactively and as a module containing
2573 all the data recorded by OpenSSL's Configure script.
2574
2575 When used interactively, simply run it as any perl script, with at least one
2576 option, and you will get the information you ask for.  See L</OPTIONS> below.
2577
2578 When loaded as a module, you get a few databanks with useful information to
2579 perform build related tasks.  The databanks are:
2580
2581     %config             Configured things.
2582     %target             The OpenSSL config target with all inheritances
2583                         resolved.
2584     %disabled           The features that are disabled.
2585     @disablables        The list of features that can be disabled.
2586     %withargs           All data given through --with-THING options.
2587     %unified_info       All information that was computed from the build.info
2588                         files.
2589
2590 =head1 OPTIONS
2591
2592 =over 4
2593
2594 =item B<--help>
2595
2596 Print a brief help message and exit.
2597
2598 =item B<--man>
2599
2600 Print the manual page and exit.
2601
2602 =item B<--dump> | B<-d>
2603
2604 Print all relevant configuration data.  This is equivalent to B<--command-line>
2605 B<--options> B<--target> B<--environment> B<--make-variables>
2606 B<--build-parameters>.
2607
2608 =item B<--command-line> | B<-c>
2609
2610 Print the current configuration command line.
2611
2612 =item B<--options> | B<-o>
2613
2614 Print the features, both enabled and disabled, and display defined macro and
2615 skipped directories where applicable.
2616
2617 =item B<--target> | B<-t>
2618
2619 Print the config attributes for this config target.
2620
2621 =item B<--environment> | B<-e>
2622
2623 Print the environment variables and their values at the time of configuration.
2624
2625 =item B<--make-variables> | B<-m>
2626
2627 Print the main make variables generated in the current configuration
2628
2629 =item B<--build-parameters> | B<-b>
2630
2631 Print the build parameters, i.e. build file and build file templates.
2632
2633 =item B<--reconfigure> | B<--reconf> | B<-r>
2634
2635 Redo the configuration.
2636
2637 =item B<--verbose> | B<-v>
2638
2639 Verbose output.
2640
2641 =back
2642
2643 =cut
2644
2645 EOF
2646 close(OUT);
2647 if ($builder_platform eq 'unix') {
2648     my $mode = (0755 & ~umask);
2649     chmod $mode, 'configdata.pm'
2650         or warn sprintf("WARNING: Couldn't change mode for 'configdata.pm' to 0%03o: %s\n",$mode,$!);
2651 }
2652
2653 my %builders = (
2654     unified => sub {
2655         print 'Creating ',$target{build_file},"\n";
2656         run_dofile(catfile($blddir, $target{build_file}),
2657                    @{$config{build_file_templates}});
2658     },
2659     );
2660
2661 $builders{$builder}->($builder_platform, @builder_opts);
2662
2663 print <<"EOF" if ($disabled{threads} eq "unavailable");
2664
2665 The library could not be configured for supporting multi-threaded
2666 applications as the compiler options required on this system are not known.
2667 See file INSTALL for details if you need multi-threading.
2668 EOF
2669
2670 print <<"EOF" if ($no_shared_warn);
2671
2672 The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
2673 platform, so we will pretend you gave the option 'no-pic', which also disables
2674 'shared' and 'dynamic-engine'.  If you know how to implement shared libraries
2675 or position independent code, please let us know (but please first make sure
2676 you have tried with a current version of OpenSSL).
2677 EOF
2678
2679 print <<"EOF";
2680
2681 **********************************************************************
2682 ***                                                                ***
2683 ***   If you want to report a building issue, please include the   ***
2684 ***   output from this command:                                    ***
2685 ***                                                                ***
2686 ***     perl configdata.pm --dump                                  ***
2687 ***                                                                ***
2688 **********************************************************************
2689 EOF
2690
2691 exit(0);
2692
2693 ######################################################################
2694 #
2695 # Helpers and utility functions
2696 #
2697
2698 # Configuration file reading #########################################
2699
2700 # Note: All of the helper functions are for lazy evaluation.  They all
2701 # return a CODE ref, which will return the intended value when evaluated.
2702 # Thus, whenever there's mention of a returned value, it's about that
2703 # intended value.
2704
2705 # Helper function to implement conditional inheritance depending on the
2706 # value of $disabled{asm}.  Used in inherit_from values as follows:
2707 #
2708 #      inherit_from => [ "template", asm("asm_tmpl") ]
2709 #
2710 sub asm {
2711     my @x = @_;
2712     sub {
2713         $disabled{asm} ? () : @x;
2714     }
2715 }
2716
2717 # Helper function to implement conditional value variants, with a default
2718 # plus additional values based on the value of $config{build_type}.
2719 # Arguments are given in hash table form:
2720 #
2721 #       picker(default => "Basic string: ",
2722 #              debug   => "debug",
2723 #              release => "release")
2724 #
2725 # When configuring with --debug, the resulting string will be
2726 # "Basic string: debug", and when not, it will be "Basic string: release"
2727 #
2728 # This can be used to create variants of sets of flags according to the
2729 # build type:
2730 #
2731 #       cflags => picker(default => "-Wall",
2732 #                        debug   => "-g -O0",
2733 #                        release => "-O3")
2734 #
2735 sub picker {
2736     my %opts = @_;
2737     return sub { add($opts{default} || (),
2738                      $opts{$config{build_type}} || ())->(); }
2739 }
2740
2741 # Helper function to combine several values of different types into one.
2742 # This is useful if you want to combine a string with the result of a
2743 # lazy function, such as:
2744 #
2745 #       cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
2746 #
2747 sub combine {
2748     my @stuff = @_;
2749     return sub { add(@stuff)->(); }
2750 }
2751
2752 # Helper function to implement conditional values depending on the value
2753 # of $disabled{threads}.  Can be used as follows:
2754 #
2755 #       cflags => combine("-Wall", threads("-pthread"))
2756 #
2757 sub threads {
2758     my @flags = @_;
2759     return sub { add($disabled{threads} ? () : @flags)->(); }
2760 }
2761
2762
2763
2764 our $add_called = 0;
2765 # Helper function to implement adding values to already existing configuration
2766 # values.  It handles elements that are ARRAYs, CODEs and scalars
2767 sub _add {
2768     my $separator = shift;
2769
2770     # If there's any ARRAY in the collection of values OR the separator
2771     # is undef, we will return an ARRAY of combined values, otherwise a
2772     # string of joined values with $separator as the separator.
2773     my $found_array = !defined($separator);
2774
2775     my @values =
2776         map {
2777             my $res = $_;
2778             while (ref($res) eq "CODE") {
2779                 $res = $res->();
2780             }
2781             if (defined($res)) {
2782                 if (ref($res) eq "ARRAY") {
2783                     $found_array = 1;
2784                     @$res;
2785                 } else {
2786                     $res;
2787                 }
2788             } else {
2789                 ();
2790             }
2791     } (@_);
2792
2793     $add_called = 1;
2794
2795     if ($found_array) {
2796         [ @values ];
2797     } else {
2798         join($separator, grep { defined($_) && $_ ne "" } @values);
2799     }
2800 }
2801 sub add_before {
2802     my $separator = " ";
2803     if (ref($_[$#_]) eq "HASH") {
2804         my $opts = pop;
2805         $separator = $opts->{separator};
2806     }
2807     my @x = @_;
2808     sub { _add($separator, @x, @_) };
2809 }
2810 sub add {
2811     my $separator = " ";
2812     if (ref($_[$#_]) eq "HASH") {
2813         my $opts = pop;
2814         $separator = $opts->{separator};
2815     }
2816     my @x = @_;
2817     sub { _add($separator, @_, @x) };
2818 }
2819
2820 sub read_eval_file {
2821     my $fname = shift;
2822     my $content;
2823     my @result;
2824
2825     open F, "< $fname" or die "Can't open '$fname': $!\n";
2826     {
2827         undef local $/;
2828         $content = <F>;
2829     }
2830     close F;
2831     {
2832         local $@;
2833
2834         @result = ( eval $content );
2835         warn $@ if $@;
2836     }
2837     return wantarray ? @result : $result[0];
2838 }
2839
2840 # configuration reader, evaluates the input file as a perl script and expects
2841 # it to fill %targets with target configurations.  Those are then added to
2842 # %table.
2843 sub read_config {
2844     my $fname = shift;
2845     my %targets;
2846
2847     {
2848         # Protect certain tables from tampering
2849         local %table = ();
2850
2851         %targets = read_eval_file($fname);
2852     }
2853     my %preexisting = ();
2854     foreach (sort keys %targets) {
2855         $preexisting{$_} = 1 if $table{$_};
2856     }
2857     die <<"EOF",
2858 The following config targets from $fname
2859 shadow pre-existing config targets with the same name:
2860 EOF
2861         map { "  $_\n" } sort keys %preexisting
2862         if %preexisting;
2863
2864
2865     # For each target, check that it's configured with a hash table.
2866     foreach (keys %targets) {
2867         if (ref($targets{$_}) ne "HASH") {
2868             if (ref($targets{$_}) eq "") {
2869                 warn "Deprecated target configuration for $_, ignoring...\n";
2870             } else {
2871                 warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
2872             }
2873             delete $targets{$_};
2874         } else {
2875             $targets{$_}->{_conf_fname_int} = add([ $fname ]);
2876         }
2877     }
2878
2879     %table = (%table, %targets);
2880
2881 }
2882
2883 # configuration resolver.  Will only resolve all the lazy evaluation
2884 # codeblocks for the chosen target and all those it inherits from,
2885 # recursively
2886 sub resolve_config {
2887     my $target = shift;
2888     my @breadcrumbs = @_;
2889
2890 #    my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
2891
2892     if (grep { $_ eq $target } @breadcrumbs) {
2893         die "inherit_from loop!  target backtrace:\n  "
2894             ,$target,"\n  ",join("\n  ", @breadcrumbs),"\n";
2895     }
2896
2897     if (!defined($table{$target})) {
2898         warn "Warning! target $target doesn't exist!\n";
2899         return ();
2900     }
2901     # Recurse through all inheritances.  They will be resolved on the
2902     # fly, so when this operation is done, they will all just be a
2903     # bunch of attributes with string values.
2904     # What we get here, though, are keys with references to lists of
2905     # the combined values of them all.  We will deal with lists after
2906     # this stage is done.
2907     my %combined_inheritance = ();
2908     if ($table{$target}->{inherit_from}) {
2909         my @inherit_from =
2910             map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
2911         foreach (@inherit_from) {
2912             my %inherited_config = resolve_config($_, $target, @breadcrumbs);
2913
2914             # 'template' is a marker that's considered private to
2915             # the config that had it.
2916             delete $inherited_config{template};
2917
2918             foreach (keys %inherited_config) {
2919                 if (!$combined_inheritance{$_}) {
2920                     $combined_inheritance{$_} = [];
2921                 }
2922                 push @{$combined_inheritance{$_}}, $inherited_config{$_};
2923             }
2924         }
2925     }
2926
2927     # We won't need inherit_from in this target any more, since we've
2928     # resolved all the inheritances that lead to this
2929     delete $table{$target}->{inherit_from};
2930
2931     # Now is the time to deal with those lists.  Here's the place to
2932     # decide what shall be done with those lists, all based on the
2933     # values of the target we're currently dealing with.
2934     # - If a value is a coderef, it will be executed with the list of
2935     #   inherited values as arguments.
2936     # - If the corresponding key doesn't have a value at all or is the
2937     #   empty string, the inherited value list will be run through the
2938     #   default combiner (below), and the result becomes this target's
2939     #   value.
2940     # - Otherwise, this target's value is assumed to be a string that
2941     #   will simply override the inherited list of values.
2942     my $default_combiner = add();
2943
2944     my %all_keys =
2945         map { $_ => 1 } (keys %combined_inheritance,
2946                          keys %{$table{$target}});
2947
2948     sub process_values {
2949         my $object    = shift;
2950         my $inherited = shift;  # Always a [ list ]
2951         my $target    = shift;
2952         my $entry     = shift;
2953
2954         $add_called = 0;
2955
2956         while(ref($object) eq "CODE") {
2957             $object = $object->(@$inherited);
2958         }
2959         if (!defined($object)) {
2960             return ();
2961         }
2962         elsif (ref($object) eq "ARRAY") {
2963             local $add_called;  # To make sure recursive calls don't affect it
2964             return [ map { process_values($_, $inherited, $target, $entry) }
2965                      @$object ];
2966         } elsif (ref($object) eq "") {
2967             return $object;
2968         } else {
2969             die "cannot handle reference type ",ref($object)
2970                 ," found in target ",$target," -> ",$entry,"\n";
2971         }
2972     }
2973
2974     foreach (sort keys %all_keys) {
2975         my $previous = $combined_inheritance{$_};
2976
2977         # Current target doesn't have a value for the current key?
2978         # Assign it the default combiner, the rest of this loop body
2979         # will handle it just like any other coderef.
2980         if (!exists $table{$target}->{$_}) {
2981             $table{$target}->{$_} = $default_combiner;
2982         }
2983
2984         $table{$target}->{$_} = process_values($table{$target}->{$_},
2985                                                $combined_inheritance{$_},
2986                                                $target, $_);
2987         unless(defined($table{$target}->{$_})) {
2988             delete $table{$target}->{$_};
2989         }
2990 #        if ($extra_checks &&
2991 #            $previous && !($add_called ||  $previous ~~ $table{$target}->{$_})) {
2992 #            warn "$_ got replaced in $target\n";
2993 #        }
2994     }
2995
2996     # Finally done, return the result.
2997     return %{$table{$target}};
2998 }
2999
3000 sub usage
3001         {
3002         print STDERR $usage;
3003         print STDERR "\npick os/compiler from:\n";
3004         my $j=0;
3005         my $i;
3006         my $k=0;
3007         foreach $i (sort keys %table)
3008                 {
3009                 next if $table{$i}->{template};
3010                 next if $i =~ /^debug/;
3011                 $k += length($i) + 1;
3012                 if ($k > 78)
3013                         {
3014                         print STDERR "\n";
3015                         $k=length($i);
3016                         }
3017                 print STDERR $i . " ";
3018                 }
3019         foreach $i (sort keys %table)
3020                 {
3021                 next if $table{$i}->{template};
3022                 next if $i !~ /^debug/;
3023                 $k += length($i) + 1;
3024                 if ($k > 78)
3025                         {
3026                         print STDERR "\n";
3027                         $k=length($i);
3028                         }
3029                 print STDERR $i . " ";
3030                 }
3031         print STDERR "\n\nNOTE: If in doubt, on Unix-ish systems use './config'.\n";
3032         exit(1);
3033         }
3034
3035 sub run_dofile
3036 {
3037     my $out = shift;
3038     my @templates = @_;
3039
3040     unlink $out || warn "Can't remove $out, $!"
3041         if -f $out;
3042     foreach (@templates) {
3043         die "Can't open $_, $!" unless -f $_;
3044     }
3045     my $perlcmd = (quotify("maybeshell", $config{perl}))[0];
3046     my $cmd = "$perlcmd \"-I.\" \"-Mconfigdata\" \"$dofile\" -o\"Configure\" \"".join("\" \"",@templates)."\" > \"$out.new\"";
3047     #print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
3048     system($cmd);
3049     exit 1 if $? != 0;
3050     rename("$out.new", $out) || die "Can't rename $out.new, $!";
3051 }
3052
3053 sub compiler_predefined {
3054     state %predefined;
3055     my $default_compiler = shift;
3056
3057     return () if $^O eq 'VMS';
3058
3059     die 'compiler_predefined called without a default compiler'
3060         unless $default_compiler;
3061
3062     if (! $predefined{$default_compiler}) {
3063         my $cc = "$config{CROSS_COMPILE}$default_compiler";
3064
3065         $predefined{$default_compiler} = {};
3066
3067         # collect compiler pre-defines from gcc or gcc-alike...
3068         open(PIPE, "$cc -dM -E -x c /dev/null 2>&1 |");
3069         while (my $l = <PIPE>) {
3070             $l =~ m/^#define\s+(\w+(?:\(\w+\))?)(?:\s+(.+))?/ or last;
3071             $predefined{$default_compiler}->{$1} = $2 // '';
3072         }
3073         close(PIPE);
3074     }
3075
3076     return %{$predefined{$default_compiler}};
3077 }
3078
3079 sub which
3080 {
3081     my ($name)=@_;
3082
3083     if (eval { require IPC::Cmd; 1; }) {
3084         IPC::Cmd->import();
3085         return scalar IPC::Cmd::can_run($name);
3086     } else {
3087         # if there is $directories component in splitpath,
3088         # then it's not something to test with $PATH...
3089         return $name if (File::Spec->splitpath($name))[1];
3090
3091         foreach (File::Spec->path()) {
3092             my $fullpath = catfile($_, "$name$target{exe_extension}");
3093             if (-f $fullpath and -x $fullpath) {
3094                 return $fullpath;
3095             }
3096         }
3097     }
3098 }
3099
3100 sub env
3101 {
3102     my $name = shift;
3103     my %opts = @_;
3104
3105     unless ($opts{cacheonly}) {
3106         # Note that if $ENV{$name} doesn't exist or is undefined,
3107         # $config{perlenv}->{$name} will be created with the value
3108         # undef.  This is intentional.
3109
3110         $config{perlenv}->{$name} = $ENV{$name}
3111             if ! exists $config{perlenv}->{$name};
3112     }
3113     return $config{perlenv}->{$name};
3114 }
3115
3116 # Configuration printer ##############################################
3117
3118 sub print_table_entry
3119 {
3120     local $now_printing = shift;
3121     my %target = resolve_config($now_printing);
3122     my $type = shift;
3123
3124     # Don't print the templates
3125     return if $target{template};
3126
3127     my @sequence = (
3128         "sys_id",
3129         "cpp",
3130         "cppflags",
3131         "defines",
3132         "includes",
3133         "cc",
3134         "cflags",
3135         "unistd",
3136         "ld",
3137         "lflags",
3138         "loutflag",
3139         "ex_libs",
3140         "bn_ops",
3141         "apps_aux_src",
3142         "cpuid_asm_src",
3143         "uplink_aux_src",
3144         "bn_asm_src",
3145         "ec_asm_src",
3146         "des_asm_src",
3147         "aes_asm_src",
3148         "bf_asm_src",
3149         "md5_asm_src",
3150         "cast_asm_src",
3151         "sha1_asm_src",
3152         "rc4_asm_src",
3153         "rmd160_asm_src",
3154         "rc5_asm_src",
3155         "wp_asm_src",
3156         "cmll_asm_src",
3157         "modes_asm_src",
3158         "padlock_asm_src",
3159         "chacha_asm_src",
3160         "poly1035_asm_src",
3161         "thread_scheme",
3162         "perlasm_scheme",
3163         "dso_scheme",
3164         "shared_target",
3165         "shared_cflag",
3166         "shared_defines",
3167         "shared_ldflag",
3168         "shared_rcflag",
3169         "shared_extension",
3170         "dso_extension",
3171         "obj_extension",
3172         "exe_extension",
3173         "ranlib",
3174         "ar",
3175         "arflags",
3176         "aroutflag",
3177         "rc",
3178         "rcflags",
3179         "rcoutflag",
3180         "mt",
3181         "mtflags",
3182         "mtinflag",
3183         "mtoutflag",
3184         "multilib",
3185         "build_scheme",
3186         );
3187
3188     if ($type eq "TABLE") {
3189         print "\n";
3190         print "*** $now_printing\n";
3191         foreach (@sequence) {
3192             if (ref($target{$_}) eq "ARRAY") {
3193                 printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
3194             } else {
3195                 printf "\$%-12s = %s\n", $_, $target{$_};
3196             }
3197         }
3198     } elsif ($type eq "HASH") {
3199         my $largest =
3200             length((sort { length($a) <=> length($b) } @sequence)[-1]);
3201         print "    '$now_printing' => {\n";
3202         foreach (@sequence) {
3203             if ($target{$_}) {
3204                 if (ref($target{$_}) eq "ARRAY") {
3205                     print "      '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
3206                 } else {
3207                     print "      '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
3208                 }
3209             }
3210         }
3211         print "    },\n";
3212     }
3213 }
3214
3215 # Utility routines ###################################################
3216
3217 # On VMS, if the given file is a logical name, File::Spec::Functions
3218 # will consider it an absolute path.  There are cases when we want a
3219 # purely syntactic check without checking the environment.
3220 sub isabsolute {
3221     my $file = shift;
3222
3223     # On non-platforms, we just use file_name_is_absolute().
3224     return file_name_is_absolute($file) unless $^O eq "VMS";
3225
3226     # If the file spec includes a device or a directory spec,
3227     # file_name_is_absolute() is perfectly safe.
3228     return file_name_is_absolute($file) if $file =~ m|[:\[]|;
3229
3230     # Here, we know the given file spec isn't absolute
3231     return 0;
3232 }
3233
3234 # Makes a directory absolute and cleans out /../ in paths like foo/../bar
3235 # On some platforms, this uses rel2abs(), while on others, realpath() is used.
3236 # realpath() requires that at least all path components except the last is an
3237 # existing directory.  On VMS, the last component of the directory spec must
3238 # exist.
3239 sub absolutedir {
3240     my $dir = shift;
3241
3242     # realpath() is quite buggy on VMS.  It uses LIB$FID_TO_NAME, which
3243     # will return the volume name for the device, no matter what.  Also,
3244     # it will return an incorrect directory spec if the argument is a
3245     # directory that doesn't exist.
3246     if ($^O eq "VMS") {
3247         return rel2abs($dir);
3248     }
3249
3250     # We use realpath() on Unix, since no other will properly clean out
3251     # a directory spec.
3252     use Cwd qw/realpath/;
3253
3254     return realpath($dir);
3255 }
3256
3257 sub quotify {
3258     my %processors = (
3259         perl    => sub { my $x = shift;
3260                          $x =~ s/([\\\$\@"])/\\$1/g;
3261                          return '"'.$x.'"'; },
3262         maybeshell => sub { my $x = shift;
3263                             (my $y = $x) =~ s/([\\\"])/\\$1/g;
3264                             if ($x ne $y || $x =~ m|\s|) {
3265                                 return '"'.$y.'"';
3266                             } else {
3267                                 return $x;
3268                             }
3269                         },
3270         );
3271     my $for = shift;
3272     my $processor =
3273         defined($processors{$for}) ? $processors{$for} : sub { shift; };
3274
3275     return map { $processor->($_); } @_;
3276 }
3277
3278 # collect_from_file($filename, $line_concat_cond_re, $line_concat)
3279 # $filename is a file name to read from
3280 # $line_concat_cond_re is a regexp detecting a line continuation ending
3281 # $line_concat is a CODEref that takes care of concatenating two lines
3282 sub collect_from_file {
3283     my $filename = shift;
3284     my $line_concat_cond_re = shift;
3285     my $line_concat = shift;
3286
3287     open my $fh, $filename || die "unable to read $filename: $!\n";
3288     return sub {
3289         my $saved_line = "";
3290         $_ = "";
3291         while (<$fh>) {
3292             s|\R$||;
3293             if (defined $line_concat) {
3294                 $_ = $line_concat->($saved_line, $_);
3295                 $saved_line = "";
3296             }
3297             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3298                 $saved_line = $_;
3299                 next;
3300             }
3301             return $_;
3302         }
3303         die "$filename ending with continuation line\n" if $_;
3304         close $fh;
3305         return undef;
3306     }
3307 }
3308
3309 # collect_from_array($array, $line_concat_cond_re, $line_concat)
3310 # $array is an ARRAYref of lines
3311 # $line_concat_cond_re is a regexp detecting a line continuation ending
3312 # $line_concat is a CODEref that takes care of concatenating two lines
3313 sub collect_from_array {
3314     my $array = shift;
3315     my $line_concat_cond_re = shift;
3316     my $line_concat = shift;
3317     my @array = (@$array);
3318
3319     return sub {
3320         my $saved_line = "";
3321         $_ = "";
3322         while (defined($_ = shift @array)) {
3323             s|\R$||;
3324             if (defined $line_concat) {
3325                 $_ = $line_concat->($saved_line, $_);
3326                 $saved_line = "";
3327             }
3328             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3329                 $saved_line = $_;
3330                 next;
3331             }
3332             return $_;
3333         }
3334         die "input text ending with continuation line\n" if $_;
3335         return undef;
3336     }
3337 }
3338
3339 # collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
3340 # $lineiterator is a CODEref that delivers one line at a time.
3341 # All following arguments are regex/CODEref pairs, where the regexp detects a
3342 # line and the CODEref does something with the result of the regexp.
3343 sub collect_information {
3344     my $lineiterator = shift;
3345     my %collectors = @_;
3346
3347     while(defined($_ = $lineiterator->())) {
3348         s|\R$||;
3349         my $found = 0;
3350         if ($collectors{"BEFORE"}) {
3351             $collectors{"BEFORE"}->($_);
3352         }
3353         foreach my $re (keys %collectors) {
3354             if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
3355                 $collectors{$re}->($lineiterator);
3356                 $found = 1;
3357             };
3358         }
3359         if ($collectors{"OTHERWISE"}) {
3360             $collectors{"OTHERWISE"}->($lineiterator, $_)
3361                 unless $found || !defined $collectors{"OTHERWISE"};
3362         }
3363         if ($collectors{"AFTER"}) {
3364             $collectors{"AFTER"}->($_);
3365         }
3366     }
3367 }
3368
3369 # tokenize($line)
3370 # $line is a line of text to split up into tokens
3371 # returns a list of tokens
3372 #
3373 # Tokens are divided by spaces.  If the tokens include spaces, they
3374 # have to be quoted with single or double quotes.  Double quotes
3375 # inside a double quoted token must be escaped.  Escaping is done
3376 # with backslash.
3377 # Basically, the same quoting rules apply for " and ' as in any
3378 # Unix shell.
3379 sub tokenize {
3380     my $line = my $debug_line = shift;
3381     my @result = ();
3382
3383     while ($line =~ s|^\s+||, $line ne "") {
3384         my $token = "";
3385         while ($line ne "" && $line !~ m|^\s|) {
3386             if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
3387                 $token .= $1;
3388                 $line = $';
3389             } elsif ($line =~ m/^'([^']*)'/) {
3390                 $token .= $1;
3391                 $line = $';
3392             } elsif ($line =~ m/^(\S+)/) {
3393                 $token .= $1;
3394                 $line = $';
3395             }
3396         }
3397         push @result, $token;
3398     }
3399
3400     if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
3401         print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
3402         print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
3403     }
3404     return @result;
3405 }