Configure

   1 #! /usr/bin/env perl
   2 # -*- mode: perl; -*-
   3 # Copyright 2016-2019 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 $orig_death_handler = $SIG{__DIE__};
  25 $SIG{__DIE__} = \&death_handler;
  26
  27 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-egd] [sctp] [386] [--prefix=DIR] [--openssldir=OPENSSLDIR] [--with-xxx[=vvv]] [--config=FILE] os/compiler[:flags]\n";
  28
  29 # Options:
  30 #
  31 # --config      add the given configuration file, which will be read after
  32 #               any "Configurations*" files that are found in the same
  33 #               directory as this script.
  34 # --prefix      prefix for the OpenSSL installation, which includes the
  35 #               directories bin, lib, include, share/man, share/doc/openssl
  36 #               This becomes the value of INSTALLTOP in Makefile
  37 #               (Default: /usr/local)
  38 # --openssldir  OpenSSL data area, such as openssl.cnf, certificates and keys.
  39 #               If it's a relative directory, it will be added on the directory
  40 #               given with --prefix.
  41 #               This becomes the value of OPENSSLDIR in Makefile and in C.
  42 #               (Default: PREFIX/ssl)
  43 #
  44 # --cross-compile-prefix Add specified prefix to binutils components.
  45 #
  46 # --api         One of 0.9.8, 1.0.0 or 1.1.0.  Do not compile support for
  47 #               interfaces deprecated as of the specified OpenSSL version.
  48 #
  49 # no-hw-xxx     do not compile support for specific crypto hardware.
  50 #               Generic OpenSSL-style methods relating to this support
  51 #               are always compiled but return NULL if the hardware
  52 #               support isn't compiled.
  53 # no-hw         do not compile support for any crypto hardware.
  54 # [no-]threads  [don't] try to create a library that is suitable for
  55 #               multithreaded applications (default is "threads" if we
  56 #               know how to do it)
  57 # [no-]shared   [don't] try to create shared libraries when supported.
  58 # [no-]pic      [don't] try to build position independent code when supported.
  59 #               If disabled, it also disables shared and dynamic-engine.
  60 # no-asm        do not use assembler
  61 # no-egd        do not compile support for the entropy-gathering daemon APIs
  62 # [no-]zlib     [don't] compile support for zlib compression.
  63 # zlib-dynamic  Like "zlib", but the zlib library is expected to be a shared
  64 #               library and will be loaded in run-time by the OpenSSL library.
  65 # sctp          include SCTP support
  66 # enable-weak-ssl-ciphers
  67 #               Enable weak ciphers that are disabled by default.
  68 # 386           generate 80386 code in assembly modules
  69 # no-sse2       disables IA-32 SSE2 code in assembly modules, the above
  70 #               mentioned '386' option implies this one
  71 # no-<cipher>   build without specified algorithm (rsa, idea, rc5, ...)
  72 # -<xxx> +<xxx> All options which are unknown to the 'Configure' script are
  73 # /<xxx>        passed through to the compiler. Unix-style options beginning
  74 #               with a '-' or '+' are recognized, as well as Windows-style
  75 #               options beginning with a '/'. If the option contains arguments
  76 #               separated by spaces, then the URL-style notation %20 can be
  77 #               used for the space character in order to avoid having to quote
  78 #               the option. For example, -opt%20arg gets expanded to -opt arg.
  79 #               In fact, any ASCII character can be encoded as %xx using its
  80 #               hexadecimal encoding.
  81 # -static       while -static is also a pass-through compiler option (and
  82 #               as such is limited to environments where it's actually
  83 #               meaningful), it triggers a number configuration options,
  84 #               namely no-pic, no-shared and no-threads. It is
  85 #               argued that the only reason to produce statically linked
  86 #               binaries (and in context it means executables linked with
  87 #               -static flag, and not just executables linked with static
  88 #               libcrypto.a) is to eliminate dependency on specific run-time,
  89 #               a.k.a. libc version. The mentioned config options are meant
  90 #               to achieve just that. Unfortunately on Linux it's impossible
  91 #               to eliminate the dependency completely for openssl executable
  92 #               because of getaddrinfo and gethostbyname calls, which can
  93 #               invoke dynamically loadable library facility anyway to meet
  94 #               the lookup requests. For this reason on Linux statically
  95 #               linked openssl executable has rather debugging value than
  96 #               production quality.
  97 #
  98 # BN_LLONG      use the type 'long long' in crypto/bn/bn.h
  99 # RC4_CHAR      use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
 100 # Following are set automatically by this script
 101 #
 102 # MD5_ASM       use some extra md5 assembler,
 103 # SHA1_ASM      use some extra sha1 assembler, must define L_ENDIAN for x86
 104 # RMD160_ASM    use some extra ripemd160 assembler,
 105 # SHA256_ASM    sha256_block is implemented in assembler
 106 # SHA512_ASM    sha512_block is implemented in assembler
 107 # AES_ASM       AES_[en|de]crypt is implemented in assembler
 108
 109 # Minimum warning options... any contributions to OpenSSL should at least
 110 # get past these.  Note that we only use these with C compilers, not with
 111 # C++ compilers.
 112
 113 # DEBUG_UNUSED enables __owur (warn unused result) checks.
 114 # -DPEDANTIC complements -pedantic and is meant to mask code that
 115 # is not strictly standard-compliant and/or implementation-specific,
 116 # e.g. inline assembly, disregards to alignment requirements, such
 117 # that -pedantic would complain about. Incidentally -DPEDANTIC has
 118 # to be used even in sanitized builds, because sanitizer too is
 119 # supposed to and does take notice of non-standard behaviour. Then
 120 # -pedantic with pre-C9x compiler would also complain about 'long
 121 # long' not being supported. As 64-bit algorithms are common now,
 122 # it grew impossible to resolve this without sizeable additional
 123 # code, so we just tell compiler to be pedantic about everything
 124 # but 'long long' type.
 125
 126 my @gcc_devteam_warn = qw(
 127     -DDEBUG_UNUSED
 128     -DPEDANTIC -pedantic -Wno-long-long
 129     -Wall
 130     -Wextra
 131     -Wno-unused-parameter
 132     -Wno-missing-field-initializers
 133     -Wswitch
 134     -Wsign-compare
 135     -Wshadow
 136     -Wformat
 137     -Wtype-limits
 138     -Wundef
 139     -Werror
 140     -Wmissing-prototypes
 141     -Wstrict-prototypes
 142 );
 143
 144 # These are used in addition to $gcc_devteam_warn when the compiler is clang.
 145 # TODO(openssl-team): fix problems and investigate if (at least) the
 146 # following warnings can also be enabled:
 147 #       -Wcast-align
 148 #       -Wunreachable-code -- no, too ugly/compiler-specific
 149 #       -Wlanguage-extension-token -- no, we use asm()
 150 #       -Wunused-macros -- no, too tricky for BN and _XOPEN_SOURCE etc
 151 #       -Wextended-offsetof -- no, needed in CMS ASN1 code
 152 my @clang_devteam_warn = qw(
 153     -Wno-unknown-warning-option
 154     -Wswitch-default
 155     -Wno-parentheses-equality
 156     -Wno-language-extension-token
 157     -Wno-extended-offsetof
 158     -Wconditional-uninitialized
 159     -Wincompatible-pointer-types-discards-qualifiers
 160     -Wmissing-variable-declarations
 161 );
 162
 163 my @cl_devteam_warn = qw(
 164     /WX
 165 );
 166
 167 # This adds backtrace information to the memory leak info.  Is only used
 168 # when crypto-mdebug-backtrace is enabled.
 169 my $memleak_devteam_backtrace = "-rdynamic";
 170
 171 my $strict_warnings = 0;
 172
 173 # As for $BSDthreads. Idea is to maintain "collective" set of flags,
 174 # which would cover all BSD flavors. -pthread applies to them all,
 175 # but is treated differently. OpenBSD expands is as -D_POSIX_THREAD
 176 # -lc_r, which is sufficient. FreeBSD 4.x expands it as -lc_r,
 177 # which has to be accompanied by explicit -D_THREAD_SAFE and
 178 # sometimes -D_REENTRANT. FreeBSD 5.x expands it as -lc_r, which
 179 # seems to be sufficient?
 180 our $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";
 181
 182 #
 183 # API compatibility name to version number mapping.
 184 #
 185 my $maxapi = "1.1.0";           # API for "no-deprecated" builds
 186 my $apitable = {
 187     "1.1.0" => "0x10100000L",
 188     "1.0.0" => "0x10000000L",
 189     "0.9.8" => "0x00908000L",
 190 };
 191
 192 our %table = ();
 193 our %config = ();
 194 our %withargs = ();
 195 our $now_printing;      # set to current entry's name in print_table_entry
 196                         # (todo: right thing would be to encapsulate name
 197                         # into %target [class] and make print_table_entry
 198                         # a method)
 199
 200 # Forward declarations ###############################################
 201
 202 # read_config(filename)
 203 #
 204 # Reads a configuration file and populates %table with the contents
 205 # (which the configuration file places in %targets).
 206 sub read_config;
 207
 208 # resolve_config(target)
 209 #
 210 # Resolves all the late evaluations, inheritances and so on for the
 211 # chosen target and any target it inherits from.
 212 sub resolve_config;
 213
 214
 215 # Information collection #############################################
 216
 217 # Unified build supports separate build dir
 218 my $srcdir = catdir(absolutedir(dirname($0))); # catdir ensures local syntax
 219 my $blddir = catdir(absolutedir("."));         # catdir ensures local syntax
 220 my $dofile = abs2rel(catfile($srcdir, "util/dofile.pl"));
 221
 222 my $local_config_envname = 'OPENSSL_LOCAL_CONFIG_DIR';
 223
 224 $config{sourcedir} = abs2rel($srcdir);
 225 $config{builddir} = abs2rel($blddir);
 226
 227 # Collect reconfiguration information if needed
 228 my @argvcopy=@ARGV;
 229
 230 if (grep /^reconf(igure)?$/, @argvcopy) {
 231     die "reconfiguring with other arguments present isn't supported"
 232         if scalar @argvcopy > 1;
 233     if (-f "./configdata.pm") {
 234         my $file = "./configdata.pm";
 235         unless (my $return = do $file) {
 236             die "couldn't parse $file: $@" if $@;
 237             die "couldn't do $file: $!"    unless defined $return;
 238             die "couldn't run $file"       unless $return;
 239         }
 240
 241         @argvcopy = defined($configdata::config{perlargv}) ?
 242             @{$configdata::config{perlargv}} : ();
 243         die "Incorrect data to reconfigure, please do a normal configuration\n"
 244             if (grep(/^reconf/,@argvcopy));
 245         $config{perlenv} = $configdata::config{perlenv} // {};
 246     } else {
 247         die "Insufficient data to reconfigure, please do a normal configuration\n";
 248     }
 249 }
 250
 251 $config{perlargv} = [ @argvcopy ];
 252
 253 # Collect version numbers
 254 $config{version} = "unknown";
 255 $config{version_num} = "unknown";
 256 $config{shlib_version_number} = "unknown";
 257 $config{shlib_version_history} = "unknown";
 258
 259 collect_information(
 260     collect_from_file(catfile($srcdir,'include/openssl/opensslv.h')),
 261     qr/OPENSSL.VERSION.TEXT.*OpenSSL (\S+) / => sub { $config{version} = $1; },
 262     qr/OPENSSL.VERSION.NUMBER.*(0x\S+)/      => sub { $config{version_num}=$1 },
 263     qr/SHLIB_VERSION_NUMBER *"([^"]+)"/      => sub { $config{shlib_version_number}=$1 },
 264     qr/SHLIB_VERSION_HISTORY *"([^"]*)"/     => sub { $config{shlib_version_history}=$1 }
 265     );
 266 if ($config{shlib_version_history} ne "") { $config{shlib_version_history} .= ":"; }
 267
 268 ($config{major}, $config{minor})
 269     = ($config{version} =~ /^([0-9]+)\.([0-9\.]+)/);
 270 ($config{shlib_major}, $config{shlib_minor})
 271     = ($config{shlib_version_number} =~ /^([0-9]+)\.([0-9\.]+)/);
 272 die "erroneous version information in opensslv.h: ",
 273     "$config{major}, $config{minor}, $config{shlib_major}, $config{shlib_minor}\n"
 274     if ($config{major} eq "" || $config{minor} eq ""
 275         || $config{shlib_major} eq "" ||  $config{shlib_minor} eq "");
 276
 277 # Collect target configurations
 278
 279 my $pattern = catfile(dirname($0), "Configurations", "*.conf");
 280 foreach (sort glob($pattern)) {
 281     &read_config($_);
 282 }
 283
 284 if (defined env($local_config_envname)) {
 285     if ($^O eq 'VMS') {
 286         # VMS environment variables are logical names,
 287         # which can be used as is
 288         $pattern = $local_config_envname . ':' . '*.conf';
 289     } else {
 290         $pattern = catfile(env($local_config_envname), '*.conf');
 291     }
 292
 293     foreach (sort glob($pattern)) {
 294         &read_config($_);
 295     }
 296 }
 297
 298 # Save away perl command information
 299 $config{perl_cmd} = $^X;
 300 $config{perl_version} = $Config{version};
 301 $config{perl_archname} = $Config{archname};
 302
 303 $config{prefix}="";
 304 $config{openssldir}="";
 305 $config{processor}="";
 306 $config{libdir}="";
 307 my $auto_threads=1;    # enable threads automatically? true by default
 308 my $default_ranlib;
 309
 310 # Top level directories to build
 311 $config{dirs} = [ "crypto", "ssl", "engines", "apps", "test", "util", "tools", "fuzz" ];
 312 # crypto/ subdirectories to build
 313 $config{sdirs} = [
 314     "objects",
 315     "md2", "md4", "md5", "sha", "mdc2", "hmac", "ripemd", "whrlpool", "poly1305", "blake2", "siphash", "sm3",
 316     "des", "aes", "rc2", "rc4", "rc5", "idea", "aria", "bf", "cast", "camellia", "seed", "sm4", "chacha", "modes",
 317     "bn", "ec", "rsa", "dsa", "dh", "sm2", "dso", "engine",
 318     "buffer", "bio", "stack", "lhash", "rand", "err",
 319     "evp", "asn1", "pem", "x509", "x509v3", "conf", "txt_db", "pkcs7", "pkcs12", "comp", "ocsp", "ui",
 320     "cms", "ts", "srp", "cmac", "ct", "async", "kdf", "store"
 321     ];
 322 # test/ subdirectories to build
 323 $config{tdirs} = [ "ossl_shim" ];
 324
 325 # Known TLS and DTLS protocols
 326 my @tls = qw(ssl3 tls1 tls1_1 tls1_2 tls1_3);
 327 my @dtls = qw(dtls1 dtls1_2);
 328
 329 # Explicitly known options that are possible to disable.  They can
 330 # be regexps, and will be used like this: /^no-${option}$/
 331 # For developers: keep it sorted alphabetically
 332
 333 my @disablables = (
 334     "afalgeng",
 335     "aria",
 336     "asan",
 337     "asm",
 338     "async",
 339     "autoalginit",
 340     "autoerrinit",
 341     "autoload-config",
 342     "bf",
 343     "blake2",
 344     "buildtest-c\\+\\+",
 345     "camellia",
 346     "capieng",
 347     "cast",
 348     "chacha",
 349     "cmac",
 350     "cms",
 351     "comp",
 352     "crypto-mdebug",
 353     "crypto-mdebug-backtrace",
 354     "ct",
 355     "deprecated",
 356     "des",
 357     "devcryptoeng",
 358     "dgram",
 359     "dh",
 360     "dsa",
 361     "dso",
 362     "dtls",
 363     "dynamic-engine",
 364     "ec",
 365     "ec2m",
 366     "ecdh",
 367     "ecdsa",
 368     "ec_nistp_64_gcc_128",
 369     "egd",
 370     "engine",
 371     "err",
 372     "external-tests",
 373     "filenames",
 374     "fuzz-libfuzzer",
 375     "fuzz-afl",
 376     "gost",
 377     "heartbeats",
 378     "hw(-.+)?",
 379     "idea",
 380     "makedepend",
 381     "md2",
 382     "md4",
 383     "mdc2",
 384     "msan",
 385     "multiblock",
 386     "nextprotoneg",
 387     "pinshared",
 388     "ocb",
 389     "ocsp",
 390     "pic",
 391     "poly1305",
 392     "posix-io",
 393     "psk",
 394     "rc2",
 395     "rc4",
 396     "rc5",
 397     "rdrand",
 398     "rfc3779",
 399     "rmd160",
 400     "scrypt",
 401     "sctp",
 402     "seed",
 403     "shared",
 404     "siphash",
 405     "sm2",
 406     "sm3",
 407     "sm4",
 408     "sock",
 409     "srp",
 410     "srtp",
 411     "sse2",
 412     "ssl",
 413     "ssl-trace",
 414     "static-engine",
 415     "stdio",
 416     "tests",
 417     "threads",
 418     "tls",
 419     "ts",
 420     "ubsan",
 421     "ui-console",
 422     "unit-test",
 423     "whirlpool",
 424     "weak-ssl-ciphers",
 425     "zlib",
 426     "zlib-dynamic",
 427     );
 428 foreach my $proto ((@tls, @dtls))
 429         {
 430         push(@disablables, $proto);
 431         push(@disablables, "$proto-method") unless $proto eq "tls1_3";
 432         }
 433
 434 my %deprecated_disablables = (
 435     "ssl2" => undef,
 436     "buf-freelists" => undef,
 437     "ripemd" => "rmd160",
 438     "ui" => "ui-console",
 439     );
 440
 441 # All of the following are disabled by default:
 442
 443 our %disabled = ( # "what"         => "comment"
 444                   "asan"                => "default",
 445                   "buildtest-c++"       => "default",
 446                   "crypto-mdebug"       => "default",
 447                   "crypto-mdebug-backtrace" => "default",
 448                   "devcryptoeng"        => "default",
 449                   "ec_nistp_64_gcc_128" => "default",
 450                   "egd"                 => "default",
 451                   "external-tests"      => "default",
 452                   "fuzz-libfuzzer"      => "default",
 453                   "fuzz-afl"            => "default",
 454                   "heartbeats"          => "default",
 455                   "md2"                 => "default",
 456                   "msan"                => "default",
 457                   "rc5"                 => "default",
 458                   "sctp"                => "default",
 459                   "ssl-trace"           => "default",
 460                   "ssl3"                => "default",
 461                   "ssl3-method"         => "default",
 462                   "ubsan"               => "default",
 463                   "unit-test"           => "default",
 464                   "weak-ssl-ciphers"    => "default",
 465                   "zlib"                => "default",
 466                   "zlib-dynamic"        => "default",
 467                 );
 468
 469 # Note: => pair form used for aesthetics, not to truly make a hash table
 470 my @disable_cascades = (
 471     # "what"            => [ "cascade", ... ]
 472     sub { $config{processor} eq "386" }
 473                         => [ "sse2" ],
 474     "ssl"               => [ "ssl3" ],
 475     "ssl3-method"       => [ "ssl3" ],
 476     "zlib"              => [ "zlib-dynamic" ],
 477     "des"               => [ "mdc2" ],
 478     "ec"                => [ "ecdsa", "ecdh" ],
 479
 480     "dgram"             => [ "dtls", "sctp" ],
 481     "sock"              => [ "dgram" ],
 482     "dtls"              => [ @dtls ],
 483     sub { 0 == scalar grep { !$disabled{$_} } @dtls }
 484                         => [ "dtls" ],
 485
 486     "tls"               => [ @tls ],
 487     sub { 0 == scalar grep { !$disabled{$_} } @tls }
 488                         => [ "tls" ],
 489
 490     "crypto-mdebug"     => [ "crypto-mdebug-backtrace" ],
 491
 492     # Without position independent code, there can be no shared libraries or DSOs
 493     "pic"               => [ "shared" ],
 494     "shared"            => [ "dynamic-engine" ],
 495     "dso"               => [ "dynamic-engine" ],
 496     "engine"            => [ "afalgeng", "devcryptoeng" ],
 497
 498     # no-autoalginit is only useful when building non-shared
 499     "autoalginit"       => [ "shared", "apps" ],
 500
 501     "stdio"             => [ "apps", "capieng", "egd" ],
 502     "apps"              => [ "tests" ],
 503     "tests"             => [ "external-tests" ],
 504     "comp"              => [ "zlib" ],
 505     "ec"                => [ "tls1_3", "sm2" ],
 506     "sm3"               => [ "sm2" ],
 507     sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
 508
 509     sub { !$disabled{"msan"} } => [ "asm" ],
 510     );
 511
 512 # Avoid protocol support holes.  Also disable all versions below N, if version
 513 # N is disabled while N+1 is enabled.
 514 #
 515 my @list = (reverse @tls);
 516 while ((my $first, my $second) = (shift @list, shift @list)) {
 517     last unless @list;
 518     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 519                               => [ @list ] );
 520     unshift @list, $second;
 521 }
 522 my @list = (reverse @dtls);
 523 while ((my $first, my $second) = (shift @list, shift @list)) {
 524     last unless @list;
 525     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 526                               => [ @list ] );
 527     unshift @list, $second;
 528 }
 529
 530 # Explicit "no-..." options will be collected in %disabled along with the defaults.
 531 # To remove something from %disabled, use "enable-foo".
 532 # For symmetry, "disable-foo" is a synonym for "no-foo".
 533
 534 &usage if ($#ARGV < 0);
 535
 536 # For the "make variables" CINCLUDES and CDEFINES, we support lists with
 537 # platform specific list separators.  Users from those platforms should
 538 # recognise those separators from how you set up the PATH to find executables.
 539 # The default is the Unix like separator, :, but as an exception, we also
 540 # support the space as separator.
 541 my $list_separator_re =
 542     { VMS           => qr/(?<!\^),/,
 543       MSWin32       => qr/(?<!\\);/ } -> {$^O} // qr/(?<!\\)[:\s]/;
 544 # All the "make variables" we support
 545 # Some get pre-populated for the sake of backward compatibility
 546 # (we supported those before the change to "make variable" support.
 547 my %user = (
 548     AR          => env('AR'),
 549     ARFLAGS     => [],
 550     AS          => undef,
 551     ASFLAGS     => [],
 552     CC          => env('CC'),
 553     CFLAGS      => [ env('CFLAGS') || () ],
 554     CXX         => env('CXX'),
 555     CXXFLAGS    => [ env('CXXFLAGS') || () ],
 556     CPP         => undef,
 557     CPPFLAGS    => [ env('CPPFLAGS') || () ],  # -D, -I, -Wp,
 558     CPPDEFINES  => [],  # Alternative for -D
 559     CPPINCLUDES => [],  # Alternative for -I
 560     CROSS_COMPILE => env('CROSS_COMPILE'),
 561     HASHBANGPERL=> env('HASHBANGPERL') || env('PERL'),
 562     LD          => undef,
 563     LDFLAGS     => [ env('LDFLAGS') || () ],  # -L, -Wl,
 564     LDLIBS      => [ env('LDLIBS') || () ],  # -l
 565     MT          => undef,
 566     MTFLAGS     => [],
 567     PERL        => env('PERL') || ($^O ne "VMS" ? $^X : "perl"),
 568     RANLIB      => env('RANLIB'),
 569     RC          => env('RC') || env('WINDRES'),
 570     RCFLAGS     => [ env('RCFLAGS') || () ],
 571     RM          => undef,
 572    );
 573 # Info about what "make variables" may be prefixed with the cross compiler
 574 # prefix.  This should NEVER mention any such variable with a list for value.
 575 my @user_crossable = qw ( AR AS CC CXX CPP LD MT RANLIB RC );
 576 # The same but for flags given as Configure options.  These are *additional*
 577 # input, as opposed to the VAR=string option that override the corresponding
 578 # config target attributes
 579 my %useradd = (
 580     CPPDEFINES  => [],
 581     CPPINCLUDES => [],
 582     CPPFLAGS    => [],
 583     CFLAGS      => [],
 584     CXXFLAGS    => [],
 585     LDFLAGS     => [],
 586     LDLIBS      => [],
 587     RCFLAGS     => [],
 588    );
 589
 590 my %user_synonyms = (
 591     HASHBANGPERL=> 'PERL',
 592     RC          => 'WINDRES',
 593    );
 594
 595 # Some target attributes have been renamed, this is the translation table
 596 my %target_attr_translate =(
 597     ar          => 'AR',
 598     as          => 'AS',
 599     cc          => 'CC',
 600     cxx         => 'CXX',
 601     cpp         => 'CPP',
 602     hashbangperl => 'HASHBANGPERL',
 603     ld          => 'LD',
 604     mt          => 'MT',
 605     ranlib      => 'RANLIB',
 606     rc          => 'RC',
 607     rm          => 'RM',
 608    );
 609
 610 # Initialisers coming from 'config' scripts
 611 $config{defines} = [ split(/$list_separator_re/, env('__CNF_CPPDEFINES')) ];
 612 $config{includes} = [ split(/$list_separator_re/, env('__CNF_CPPINCLUDES')) ];
 613 $config{cppflags} = [ env('__CNF_CPPFLAGS') || () ];
 614 $config{cflags} = [ env('__CNF_CFLAGS') || () ];
 615 $config{cxxflags} = [ env('__CNF_CXXFLAGS') || () ];
 616 $config{lflags} = [ env('__CNF_LDFLAGS') || () ];
 617 $config{ex_libs} = [ env('__CNF_LDLIBS') || () ];
 618
 619 $config{openssl_api_defines}=[];
 620 $config{openssl_algorithm_defines}=[];
 621 $config{openssl_thread_defines}=[];
 622 $config{openssl_sys_defines}=[];
 623 $config{openssl_other_defines}=[];
 624 $config{options}="";
 625 $config{build_type} = "release";
 626 my $target="";
 627
 628 my %cmdvars = ();               # Stores FOO='blah' type arguments
 629 my %unsupported_options = ();
 630 my %deprecated_options = ();
 631 # If you change this, update apps/version.c
 632 my @known_seed_sources = qw(getrandom devrandom os egd none rdcpu librandom);
 633 my @seed_sources = ();
 634 while (@argvcopy)
 635         {
 636         $_ = shift @argvcopy;
 637
 638         # Support env variable assignments among the options
 639         if (m|^(\w+)=(.+)?$|)
 640                 {
 641                 $cmdvars{$1} = $2;
 642                 # Every time a variable is given as a configuration argument,
 643                 # it acts as a reset if the variable.
 644                 if (exists $user{$1})
 645                         {
 646                         $user{$1} = ref $user{$1} eq "ARRAY" ? [] : undef;
 647                         }
 648                 #if (exists $useradd{$1})
 649                 #       {
 650                 #       $useradd{$1} = [];
 651                 #       }
 652                 next;
 653                 }
 654
 655         # VMS is a case insensitive environment, and depending on settings
 656         # out of our control, we may receive options uppercased.  Let's
 657         # downcase at least the part before any equal sign.
 658         if ($^O eq "VMS")
 659                 {
 660                 s/^([^=]*)/lc($1)/e;
 661                 }
 662
 663         # some people just can't read the instructions, clang people have to...
 664         s/^-no-(?!integrated-as)/no-/;
 665
 666         # rewrite some options in "enable-..." form
 667         s /^-?-?shared$/enable-shared/;
 668         s /^sctp$/enable-sctp/;
 669         s /^threads$/enable-threads/;
 670         s /^zlib$/enable-zlib/;
 671         s /^zlib-dynamic$/enable-zlib-dynamic/;
 672
 673         if (/^(no|disable|enable)-(.+)$/)
 674                 {
 675                 my $word = $2;
 676                 if (!exists $deprecated_disablables{$word}
 677                         && !grep { $word =~ /^${_}$/ } @disablables)
 678                         {
 679                         $unsupported_options{$_} = 1;
 680                         next;
 681                         }
 682                 }
 683         if (/^no-(.+)$/ || /^disable-(.+)$/)
 684                 {
 685                 foreach my $proto ((@tls, @dtls))
 686                         {
 687                         if ($1 eq "$proto-method")
 688                                 {
 689                                 $disabled{"$proto"} = "option($proto-method)";
 690                                 last;
 691                                 }
 692                         }
 693                 if ($1 eq "dtls")
 694                         {
 695                         foreach my $proto (@dtls)
 696                                 {
 697                                 $disabled{$proto} = "option(dtls)";
 698                                 }
 699                         $disabled{"dtls"} = "option(dtls)";
 700                         }
 701                 elsif ($1 eq "ssl")
 702                         {
 703                         # Last one of its kind
 704                         $disabled{"ssl3"} = "option(ssl)";
 705                         }
 706                 elsif ($1 eq "tls")
 707                         {
 708                         # XXX: Tests will fail if all SSL/TLS
 709                         # protocols are disabled.
 710                         foreach my $proto (@tls)
 711                                 {
 712                                 $disabled{$proto} = "option(tls)";
 713                                 }
 714                         }
 715                 elsif ($1 eq "static-engine")
 716                         {
 717                         delete $disabled{"dynamic-engine"};
 718                         }
 719                 elsif ($1 eq "dynamic-engine")
 720                         {
 721                         $disabled{"dynamic-engine"} = "option";
 722                         }
 723                 elsif (exists $deprecated_disablables{$1})
 724                         {
 725                         if ($deprecated_disablables{$1} ne "")
 726                                 {
 727                                 $deprecated_options{$_} = 1;
 728                                 if (defined $deprecated_disablables{$1})
 729                                         {
 730                                         $disabled{$deprecated_disablables{$1}} = "option";
 731                                         }
 732                                 }
 733                         }
 734                 else
 735                         {
 736                         $disabled{$1} = "option";
 737                         }
 738                 # No longer an automatic choice
 739                 $auto_threads = 0 if ($1 eq "threads");
 740                 }
 741         elsif (/^enable-(.+)$/)
 742                 {
 743                 if ($1 eq "static-engine")
 744                         {
 745                         $disabled{"dynamic-engine"} = "option";
 746                         }
 747                 elsif ($1 eq "dynamic-engine")
 748                         {
 749                         delete $disabled{"dynamic-engine"};
 750                         }
 751                 elsif ($1 eq "zlib-dynamic")
 752                         {
 753                         delete $disabled{"zlib"};
 754                         }
 755                 my $algo = $1;
 756                 delete $disabled{$algo};
 757
 758                 # No longer an automatic choice
 759                 $auto_threads = 0 if ($1 eq "threads");
 760                 }
 761         elsif (/^--strict-warnings$/)
 762                 {
 763                 # Pretend that our strict flags is a C flag, and replace it
 764                 # with the proper flags later on
 765                 push @{$useradd{CFLAGS}}, '--ossl-strict-warnings';
 766                 $strict_warnings=1;
 767                 }
 768         elsif (/^--debug$/)
 769                 {
 770                 $config{build_type} = "debug";
 771                 }
 772         elsif (/^--release$/)
 773                 {
 774                 $config{build_type} = "release";
 775                 }
 776         elsif (/^386$/)
 777                 { $config{processor}=386; }
 778         elsif (/^fips$/)
 779                 {
 780                 die "FIPS mode not supported\n";
 781                 }
 782         elsif (/^rsaref$/)
 783                 {
 784                 # No RSAref support any more since it's not needed.
 785                 # The check for the option is there so scripts aren't
 786                 # broken
 787                 }
 788         elsif (/^nofipscanistercheck$/)
 789                 {
 790                 die "FIPS mode not supported\n";
 791                 }
 792         elsif (m|^[-+/]|)
 793                 {
 794                 if (/^--prefix=(.*)$/)
 795                         {
 796                         $config{prefix}=$1;
 797                         die "Directory given with --prefix MUST be absolute\n"
 798                                 unless file_name_is_absolute($config{prefix});
 799                         }
 800                 elsif (/^--api=(.*)$/)
 801                         {
 802                         $config{api}=$1;
 803                         }
 804                 elsif (/^--libdir=(.*)$/)
 805                         {
 806                         $config{libdir}=$1;
 807                         }
 808                 elsif (/^--openssldir=(.*)$/)
 809                         {
 810                         $config{openssldir}=$1;
 811                         }
 812                 elsif (/^--with-zlib-lib=(.*)$/)
 813                         {
 814                         $withargs{zlib_lib}=$1;
 815                         }
 816                 elsif (/^--with-zlib-include=(.*)$/)
 817                         {
 818                         $withargs{zlib_include}=$1;
 819                         }
 820                 elsif (/^--with-fuzzer-lib=(.*)$/)
 821                         {
 822                         $withargs{fuzzer_lib}=$1;
 823                         }
 824                 elsif (/^--with-fuzzer-include=(.*)$/)
 825                         {
 826                         $withargs{fuzzer_include}=$1;
 827                         }
 828                 elsif (/^--with-rand-seed=(.*)$/)
 829                         {
 830                         foreach my $x (split(m|,|, $1))
 831                             {
 832                             die "Unknown --with-rand-seed choice $x\n"
 833                                 if ! grep { $x eq $_ } @known_seed_sources;
 834                             push @seed_sources, $x;
 835                             }
 836                         }
 837                 elsif (/^--cross-compile-prefix=(.*)$/)
 838                         {
 839                         $user{CROSS_COMPILE}=$1;
 840                         }
 841                 elsif (/^--config=(.*)$/)
 842                         {
 843                         read_config $1;
 844                         }
 845                 elsif (/^-l(.*)$/)
 846                         {
 847                         push @{$useradd{LDLIBS}}, $_;
 848                         }
 849                 elsif (/^-framework$/)
 850                         {
 851                         push @{$useradd{LDLIBS}}, $_, shift(@argvcopy);
 852                         }
 853                 elsif (/^-L(.*)$/ or /^-Wl,/)
 854                         {
 855                         push @{$useradd{LDFLAGS}}, $_;
 856                         }
 857                 elsif (/^-rpath$/ or /^-R$/)
 858                         # -rpath is the OSF1 rpath flag
 859                         # -R is the old Solaris rpath flag
 860                         {
 861                         my $rpath = shift(@argvcopy) || "";
 862                         $rpath .= " " if $rpath ne "";
 863                         push @{$useradd{LDFLAGS}}, $_, $rpath;
 864                         }
 865                 elsif (/^-static$/)
 866                         {
 867                         push @{$useradd{LDFLAGS}}, $_;
 868                         }
 869                 elsif (m|^[-/]D(.*)$|)
 870                         {
 871                         push @{$useradd{CPPDEFINES}}, $1;
 872                         }
 873                 elsif (m|^[-/]I(.*)$|)
 874                         {
 875                         push @{$useradd{CPPINCLUDES}}, $1;
 876                         }
 877                 elsif (/^-Wp,$/)
 878                         {
 879                         push @{$useradd{CPPFLAGS}}, $1;
 880                         }
 881                 else    # common if (/^[-+]/), just pass down...
 882                         {
 883                         # Treat %xx as an ASCII code (e.g. replace %20 by a space character).
 884                         # This provides a simple way to pass options with arguments separated
 885                         # by spaces without quoting (e.g. -opt%20arg translates to -opt arg).
 886                         $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
 887                         push @{$useradd{CFLAGS}}, $_;
 888                         push @{$useradd{CXXFLAGS}}, $_;
 889                         }
 890                 }
 891         elsif (m|^/|)
 892                 {
 893                 # Treat %xx as an ASCII code (e.g. replace %20 by a space character).
 894                 # This provides a simple way to pass options with arguments separated
 895                 # by spaces without quoting (e.g. /opt%20arg translates to /opt arg).
 896                 $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
 897                 push @{$useradd{CFLAGS}}, $_;
 898                 push @{$useradd{CXXFLAGS}}, $_;
 899                 }
 900         else
 901                 {
 902                 die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
 903                 $target=$_;
 904                 }
 905         unless ($_ eq $target || /^no-/ || /^disable-/)
 906                 {
 907                 # "no-..." follows later after implied deactivations
 908                 # have been derived.  (Don't take this too seriously,
 909                 # we really only write OPTIONS to the Makefile out of
 910                 # nostalgia.)
 911
 912                 if ($config{options} eq "")
 913                         { $config{options} = $_; }
 914                 else
 915                         { $config{options} .= " ".$_; }
 916                 }
 917         }
 918
 919 if (defined($config{api}) && !exists $apitable->{$config{api}}) {
 920         die "***** Unsupported api compatibility level: $config{api}\n",
 921 }
 922
 923 if (keys %deprecated_options)
 924         {
 925         warn "***** Deprecated options: ",
 926                 join(", ", keys %deprecated_options), "\n";
 927         }
 928 if (keys %unsupported_options)
 929         {
 930         die "***** Unsupported options: ",
 931                 join(", ", keys %unsupported_options), "\n";
 932         }
 933
 934 # If any %useradd entry has been set, we must check that the "make
 935 # variables" haven't been set.  We start by checking of any %useradd entry
 936 # is set.
 937 if (grep { scalar @$_ > 0 } values %useradd) {
 938     # Hash of env / make variables names.  The possible values are:
 939     # 1 - "make vars"
 940     # 2 - %useradd entry set
 941     # 3 - both set
 942     my %detected_vars =
 943         map { my $v = 0;
 944               $v += 1 if $cmdvars{$_};
 945               $v += 2 if @{$useradd{$_}};
 946               $_ => $v }
 947         keys %useradd;
 948
 949     # If any of the corresponding "make variables" is set, we error
 950     if (grep { $_ & 1 } values %detected_vars) {
 951         my $names = join(', ', grep { $detected_vars{$_} > 0 }
 952                                sort keys %detected_vars);
 953         die <<"_____";
 954 ***** Mixing make variables and additional compiler/linker flags as
 955 ***** configure command line option is not permitted.
 956 ***** Affected make variables: $names
 957 _____
 958     }
 959 }
 960
 961 # Check through all supported command line variables to see if any of them
 962 # were set, and canonicalise the values we got.  If no compiler or linker
 963 # flag or anything else that affects %useradd was set, we also check the
 964 # environment for values.
 965 my $anyuseradd =
 966     grep { defined $_ && (ref $_ ne 'ARRAY' || @$_) } values %useradd;
 967 foreach (keys %user) {
 968     my $value = $cmdvars{$_};
 969     $value //= env($_) unless $anyuseradd;
 970     $value //=
 971         defined $user_synonyms{$_} ? $cmdvars{$user_synonyms{$_}} : undef;
 972     $value //= defined $user_synonyms{$_} ? env($user_synonyms{$_}) : undef
 973         unless $anyuseradd;
 974
 975     if (defined $value) {
 976         if (ref $user{$_} eq 'ARRAY') {
 977             $user{$_} = [ split /$list_separator_re/, $value ];
 978         } elsif (!defined $user{$_}) {
 979             $user{$_} = $value;
 980         }
 981     }
 982 }
 983
 984 if (grep { /-rpath\b/ } ($user{LDFLAGS} ? @{$user{LDFLAGS}} : ())
 985     && !$disabled{shared}
 986     && !($disabled{asan} && $disabled{msan} && $disabled{ubsan})) {
 987     die "***** Cannot simultaneously use -rpath, shared libraries, and\n",
 988         "***** any of asan, msan or ubsan\n";
 989 }
 990
 991 sub disable {
 992     my $disable_type = shift;
 993
 994     for (@_) {
 995         $disabled{$_} = $disable_type;
 996     }
 997
 998     my @tocheckfor = (@_ ? @_ : keys %disabled);
 999     while (@tocheckfor) {
1000         my %new_tocheckfor = ();
1001         my @cascade_copy = (@disable_cascades);
1002         while (@cascade_copy) {
1003             my ($test, $descendents) =
1004                 (shift @cascade_copy, shift @cascade_copy);
1005             if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
1006                 foreach (grep { !defined($disabled{$_}) } @$descendents) {
1007                     $new_tocheckfor{$_} = 1; $disabled{$_} = "cascade";
1008                 }
1009             }
1010         }
1011         @tocheckfor = (keys %new_tocheckfor);
1012     }
1013 }
1014 disable();                     # First cascade run
1015
1016 our $die = sub { die @_; };
1017 if ($target eq "TABLE") {
1018     local $die = sub { warn @_; };
1019     foreach (sort keys %table) {
1020         print_table_entry($_, "TABLE");
1021     }
1022     exit 0;
1023 }
1024
1025 if ($target eq "LIST") {
1026     foreach (sort keys %table) {
1027         print $_,"\n" unless $table{$_}->{template};
1028     }
1029     exit 0;
1030 }
1031
1032 if ($target eq "HASH") {
1033     local $die = sub { warn @_; };
1034     print "%table = (\n";
1035     foreach (sort keys %table) {
1036         print_table_entry($_, "HASH");
1037     }
1038     exit 0;
1039 }
1040
1041 print "Configuring OpenSSL version $config{version} ($config{version_num}) ";
1042 print "for $target\n";
1043
1044 if (scalar(@seed_sources) == 0) {
1045     print "Using os-specific seed configuration\n";
1046     push @seed_sources, 'os';
1047 }
1048 if (scalar(grep { $_ eq 'none' } @seed_sources) > 0) {
1049     die "Cannot seed with none and anything else" if scalar(@seed_sources) > 1;
1050     warn <<_____ if scalar(@seed_sources) == 1;
1051
1052 ============================== WARNING ===============================
1053 You have selected the --with-rand-seed=none option, which effectively
1054 disables automatic reseeding of the OpenSSL random generator.
1055 All operations depending on the random generator such as creating keys
1056 will not work unless the random generator is seeded manually by the
1057 application.
1058
1059 Please read the 'Note on random number generation' section in the
1060 INSTALL instructions and the RAND_DRBG(7) manual page for more details.
1061 ============================== WARNING ===============================
1062
1063 _____
1064 }
1065 push @{$config{openssl_other_defines}},
1066      map { (my $x = $_) =~ tr|[\-a-z]|[_A-Z]|; "OPENSSL_RAND_SEED_$x" }
1067         @seed_sources;
1068
1069 # Backward compatibility?
1070 if ($target =~ m/^CygWin32(-.*)$/) {
1071     $target = "Cygwin".$1;
1072 }
1073
1074 # Support for legacy targets having a name starting with 'debug-'
1075 my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
1076 if ($d) {
1077     $config{build_type} = "debug";
1078
1079     # If we do not find debug-foo in the table, the target is set to foo.
1080     if (!$table{$target}) {
1081         $target = $t;
1082     }
1083 }
1084
1085 &usage if !$table{$target} || $table{$target}->{template};
1086
1087 $config{target} = $target;
1088 my %target = resolve_config($target);
1089
1090 foreach (keys %target_attr_translate) {
1091     $target{$target_attr_translate{$_}} = $target{$_}
1092         if $target{$_};
1093     delete $target{$_};
1094 }
1095
1096 %target = ( %{$table{DEFAULTS}}, %target );
1097
1098 my %conf_files = map { $_ => 1 } (@{$target{_conf_fname_int}});
1099 $config{conf_files} = [ sort keys %conf_files ];
1100
1101 # Using sub disable within these loops may prove fragile, so we run
1102 # a cascade afterwards
1103 foreach my $feature (@{$target{disable}}) {
1104     if (exists $deprecated_disablables{$feature}) {
1105         warn "***** config $target disables deprecated feature $feature\n";
1106     } elsif (!grep { $feature eq $_ } @disablables) {
1107         die "***** config $target disables unknown feature $feature\n";
1108     }
1109     $disabled{$feature} = 'config';
1110 }
1111 foreach my $feature (@{$target{enable}}) {
1112     if ("default" eq ($disabled{$feature} // "")) {
1113         if (exists $deprecated_disablables{$feature}) {
1114             warn "***** config $target enables deprecated feature $feature\n";
1115         } elsif (!grep { $feature eq $_ } @disablables) {
1116             die "***** config $target enables unknown feature $feature\n";
1117         }
1118         delete $disabled{$feature};
1119     }
1120 }
1121 disable();                      # Run a cascade now
1122
1123 $target{CXXFLAGS}//=$target{CFLAGS} if $target{CXX};
1124 $target{cxxflags}//=$target{cflags} if $target{CXX};
1125 $target{exe_extension}="";
1126 $target{exe_extension}=".exe" if ($config{target} eq "DJGPP"
1127                                   || $config{target} =~ /^(?:Cygwin|mingw)/);
1128 $target{exe_extension}=".pm"  if ($config{target} =~ /vos/);
1129
1130 ($target{shared_extension_simple}=$target{shared_extension})
1131     =~ s|\.\$\(SHLIB_VERSION_NUMBER\)||
1132     unless defined($target{shared_extension_simple});
1133 $target{dso_extension}//=$target{shared_extension_simple};
1134 ($target{shared_import_extension}=$target{shared_extension_simple}.".a")
1135     if ($config{target} =~ /^(?:Cygwin|mingw)/);
1136
1137 # Fill %config with values from %user, and in case those are undefined or
1138 # empty, use values from %target (acting as a default).
1139 foreach (keys %user) {
1140     my $ref_type = ref $user{$_};
1141
1142     # Temporary function.  Takes an intended ref type (empty string or "ARRAY")
1143     # and a value that's to be coerced into that type.
1144     my $mkvalue = sub {
1145         my $type = shift;
1146         my $value = shift;
1147         my $undef_p = shift;
1148
1149         die "Too many arguments for \$mkvalue" if @_;
1150
1151         while (ref $value eq 'CODE') {
1152             $value = $value->();
1153         }
1154
1155         if ($type eq 'ARRAY') {
1156             return undef unless defined $value;
1157             return undef if ref $value ne 'ARRAY' && !$value;
1158             return undef if ref $value eq 'ARRAY' && !@$value;
1159             return [ $value ] unless ref $value eq 'ARRAY';
1160         }
1161         return undef unless $value;
1162         return $value;
1163     };
1164
1165     $config{$_} =
1166         $mkvalue->($ref_type, $user{$_})
1167         || $mkvalue->($ref_type, $target{$_});
1168     delete $config{$_} unless defined $config{$_};
1169 }
1170
1171 # Finish up %config by appending things the user gave us on the command line
1172 # apart from "make variables"
1173 foreach (keys %useradd) {
1174     # The must all be lists, so we assert that here
1175     die "internal error: \$useradd{$_} isn't an ARRAY\n"
1176         unless ref $useradd{$_} eq 'ARRAY';
1177
1178     if (defined $config{$_}) {
1179         push @{$config{$_}}, @{$useradd{$_}};
1180     } else {
1181         $config{$_} = [ @{$useradd{$_}} ];
1182     }
1183 }
1184 # At this point, we can forget everything about %user and %useradd,
1185 # because it's now all been merged into the corresponding $config entry
1186
1187 # Allow overriding the build file name
1188 $config{build_file} = env('BUILDFILE') || $target{build_file} || "Makefile";
1189
1190 # Make sure build_scheme is consistent.
1191 $target{build_scheme} = [ $target{build_scheme} ]
1192     if ref($target{build_scheme}) ne "ARRAY";
1193
1194 my ($builder, $builder_platform, @builder_opts) =
1195     @{$target{build_scheme}};
1196
1197 foreach my $checker (($builder_platform."-".$target{build_file}."-checker.pm",
1198                       $builder_platform."-checker.pm")) {
1199     my $checker_path = catfile($srcdir, "Configurations", $checker);
1200     if (-f $checker_path) {
1201         my $fn = $ENV{CONFIGURE_CHECKER_WARN}
1202             ? sub { warn $@; } : sub { die $@; };
1203         if (! do $checker_path) {
1204             if ($@) {
1205                 $fn->($@);
1206             } elsif ($!) {
1207                 $fn->($!);
1208             } else {
1209                 $fn->("The detected tools didn't match the platform\n");
1210             }
1211         }
1212         last;
1213     }
1214 }
1215
1216 push @{$config{defines}}, "NDEBUG"    if $config{build_type} eq "release";
1217
1218 if ($target =~ /^mingw/ && `$config{CC} --target-help 2>&1` =~ m/-mno-cygwin/m)
1219         {
1220         push @{$config{cflags}}, "-mno-cygwin";
1221         push @{$config{cxxflags}}, "-mno-cygwin" if $config{CXX};
1222         push @{$config{shared_ldflag}}, "-mno-cygwin";
1223         }
1224
1225 if ($target =~ /linux.*-mips/ && !$disabled{asm}
1226         && !grep { $_ !~ /-m(ips|arch=)/ } (@{$config{CFLAGS}})) {
1227         # minimally required architecture flags for assembly modules
1228         my $value;
1229         $value = '-mips2' if ($target =~ /mips32/);
1230         $value = '-mips3' if ($target =~ /mips64/);
1231         unshift @{$config{cflags}}, $value;
1232         unshift @{$config{cxxflags}}, $value if $config{CXX};
1233 }
1234
1235 # If threads aren't disabled, check how possible they are
1236 unless ($disabled{threads}) {
1237     if ($auto_threads) {
1238         # Enabled by default, disable it forcibly if unavailable
1239         if ($target{thread_scheme} eq "(unknown)") {
1240             disable("unavailable", 'threads');
1241         }
1242     } else {
1243         # The user chose to enable threads explicitly, let's see
1244         # if there's a chance that's possible
1245         if ($target{thread_scheme} eq "(unknown)") {
1246             # If the user asked for "threads" and we don't have internal
1247             # knowledge how to do it, [s]he is expected to provide any
1248             # system-dependent compiler options that are necessary.  We
1249             # can't truly check that the given options are correct, but
1250             # we expect the user to know what [s]He is doing.
1251             if (!@{$config{CFLAGS}} && !@{$config{CPPDEFINES}}) {
1252                 die "You asked for multi-threading support, but didn't\n"
1253                     ,"provide any system-specific compiler options\n";
1254             }
1255         }
1256     }
1257 }
1258
1259 # If threads still aren't disabled, add a C macro to ensure the source
1260 # code knows about it.  Any other flag is taken care of by the configs.
1261 unless($disabled{threads}) {
1262     push @{$config{openssl_thread_defines}}, "OPENSSL_THREADS";
1263 }
1264
1265 # With "deprecated" disable all deprecated features.
1266 if (defined($disabled{"deprecated"})) {
1267         $config{api} = $maxapi;
1268 }
1269
1270 my $no_shared_warn=0;
1271 if ($target{shared_target} eq "")
1272         {
1273         $no_shared_warn = 1
1274             if (!$disabled{shared} || !$disabled{"dynamic-engine"});
1275         disable('no-shared-target', 'pic');
1276         }
1277
1278 if ($disabled{"dynamic-engine"}) {
1279         $config{dynamic_engines} = 0;
1280 } else {
1281         $config{dynamic_engines} = 1;
1282 }
1283
1284 unless ($disabled{asan}) {
1285     push @{$config{cflags}}, "-fsanitize=address";
1286 }
1287
1288 unless ($disabled{ubsan}) {
1289     # -DPEDANTIC or -fnosanitize=alignment may also be required on some
1290     # platforms.
1291     push @{$config{cflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all";
1292 }
1293
1294 unless ($disabled{msan}) {
1295   push @{$config{cflags}}, "-fsanitize=memory";
1296 }
1297
1298 unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
1299         && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
1300     push @{$config{cflags}}, "-fno-omit-frame-pointer", "-g";
1301     push @{$config{cxxflags}}, "-fno-omit-frame-pointer", "-g" if $config{CXX};
1302 }
1303 #
1304 # Platform fix-ups
1305 #
1306
1307 # This saves the build files from having to check
1308 if ($disabled{pic})
1309         {
1310         foreach (qw(shared_cflag shared_cxxflag shared_cppflag
1311                     shared_defines shared_includes shared_ldflag
1312                     module_cflags module_cxxflags module_cppflags
1313                     module_defines module_includes module_lflags))
1314                 {
1315                 delete $config{$_};
1316                 $target{$_} = "";
1317                 }
1318         }
1319 else
1320         {
1321         push @{$config{lib_defines}}, "OPENSSL_PIC";
1322         }
1323
1324 if ($target{sys_id} ne "")
1325         {
1326         push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
1327         }
1328
1329 unless ($disabled{asm}) {
1330     $target{cpuid_asm_src}=$table{DEFAULTS}->{cpuid_asm_src} if ($config{processor} eq "386");
1331     push @{$config{lib_defines}}, "OPENSSL_CPUID_OBJ" if ($target{cpuid_asm_src} ne "mem_clr.c");
1332
1333     $target{bn_asm_src} =~ s/\w+-gf2m.c// if (defined($disabled{ec2m}));
1334
1335     # bn-586 is the only one implementing bn_*_part_words
1336     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_PART_WORDS" if ($target{bn_asm_src} =~ /bn-586/);
1337     push @{$config{lib_defines}}, "OPENSSL_IA32_SSE2" if (!$disabled{sse2} && $target{bn_asm_src} =~ /86/);
1338
1339     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT" if ($target{bn_asm_src} =~ /-mont/);
1340     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT5" if ($target{bn_asm_src} =~ /-mont5/);
1341     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_GF2m" if ($target{bn_asm_src} =~ /-gf2m/);
1342     push @{$config{lib_defines}}, "BN_DIV3W" if ($target{bn_asm_src} =~ /-div3w/);
1343
1344     if ($target{sha1_asm_src}) {
1345         push @{$config{lib_defines}}, "SHA1_ASM"   if ($target{sha1_asm_src} =~ /sx86/ || $target{sha1_asm_src} =~ /sha1/);
1346         push @{$config{lib_defines}}, "SHA256_ASM" if ($target{sha1_asm_src} =~ /sha256/);
1347         push @{$config{lib_defines}}, "SHA512_ASM" if ($target{sha1_asm_src} =~ /sha512/);
1348     }
1349     if ($target{keccak1600_asm_src} ne $table{DEFAULTS}->{keccak1600_asm_src}) {
1350         push @{$config{lib_defines}}, "KECCAK1600_ASM";
1351     }
1352     if ($target{rc4_asm_src} ne $table{DEFAULTS}->{rc4_asm_src}) {
1353         push @{$config{lib_defines}}, "RC4_ASM";
1354     }
1355     if ($target{md5_asm_src}) {
1356         push @{$config{lib_defines}}, "MD5_ASM";
1357     }
1358     $target{cast_asm_src}=$table{DEFAULTS}->{cast_asm_src} unless $disabled{pic}; # CAST assembler is not PIC
1359     if ($target{rmd160_asm_src}) {
1360         push @{$config{lib_defines}}, "RMD160_ASM";
1361     }
1362     if ($target{aes_asm_src}) {
1363         push @{$config{lib_defines}}, "AES_ASM" if ($target{aes_asm_src} =~ m/\baes-/);;
1364         push @{$config{lib_defines}}, "AESNI_ASM" if ($target{aes_asm_src} =~ m/\baesni-/);;
1365         # aes-ctr.fake is not a real file, only indication that assembler
1366         # module implements AES_ctr32_encrypt...
1367         push @{$config{lib_defines}}, "AES_CTR_ASM" if ($target{aes_asm_src} =~ s/\s*aes-ctr\.fake//);
1368         # aes-xts.fake indicates presence of AES_xts_[en|de]crypt...
1369         push @{$config{lib_defines}}, "AES_XTS_ASM" if ($target{aes_asm_src} =~ s/\s*aes-xts\.fake//);
1370         $target{aes_asm_src} =~ s/\s*(vpaes|aesni)-x86\.s//g if ($disabled{sse2});
1371         push @{$config{lib_defines}}, "VPAES_ASM" if ($target{aes_asm_src} =~ m/vpaes/);
1372         push @{$config{lib_defines}}, "BSAES_ASM" if ($target{aes_asm_src} =~ m/bsaes/);
1373     }
1374     if ($target{wp_asm_src} =~ /mmx/) {
1375         if ($config{processor} eq "386") {
1376             $target{wp_asm_src}=$table{DEFAULTS}->{wp_asm_src};
1377         } elsif (!$disabled{"whirlpool"}) {
1378             push @{$config{lib_defines}}, "WHIRLPOOL_ASM";
1379         }
1380     }
1381     if ($target{modes_asm_src} =~ /ghash-/) {
1382         push @{$config{lib_defines}}, "GHASH_ASM";
1383     }
1384     if ($target{ec_asm_src} =~ /ecp_nistz256/) {
1385         push @{$config{lib_defines}}, "ECP_NISTZ256_ASM";
1386     }
1387     if ($target{ec_asm_src} =~ /x25519/) {
1388         push @{$config{lib_defines}}, "X25519_ASM";
1389     }
1390     if ($target{padlock_asm_src} ne $table{DEFAULTS}->{padlock_asm_src}) {
1391         push @{$config{dso_defines}}, "PADLOCK_ASM";
1392     }
1393     if ($target{poly1305_asm_src} ne "") {
1394         push @{$config{lib_defines}}, "POLY1305_ASM";
1395     }
1396 }
1397
1398 my %predefined_C = compiler_predefined($config{CROSS_COMPILE}.$config{CC});
1399 my %predefined_CXX = $config{CXX}
1400     ? compiler_predefined($config{CROSS_COMPILE}.$config{CXX})
1401     : ();
1402
1403 # Check for makedepend capabilities.
1404 if (!$disabled{makedepend}) {
1405     if ($config{target} =~ /^(VC|vms)-/) {
1406         # For VC- and vms- targets, there's nothing more to do here.  The
1407         # functionality is hard coded in the corresponding build files for
1408         # cl (Windows) and CC/DECC (VMS).
1409     } elsif (($predefined_C{__GNUC__} // -1) >= 3
1410              && !($predefined_C{__APPLE_CC__} && !$predefined_C{__clang__})) {
1411         # We know that GNU C version 3 and up as well as all clang
1412         # versions support dependency generation, but Xcode did not
1413         # handle $cc -M before clang support (but claims __GNUC__ = 3)
1414         $config{makedepprog} = "\$(CROSS_COMPILE)$config{CC}";
1415     } else {
1416         # In all other cases, we look for 'makedepend', and disable the
1417         # capability if not found.
1418         $config{makedepprog} = which('makedepend');
1419         disable('unavailable', 'makedepend') unless $config{makedepprog};
1420     }
1421 }
1422
1423 if (!$disabled{asm} && !$predefined_C{__MACH__} && $^O ne 'VMS') {
1424     # probe for -Wa,--noexecstack option...
1425     if ($predefined_C{__clang__}) {
1426         # clang has builtin assembler, which doesn't recognize --help,
1427         # but it apparently recognizes the option in question on all
1428         # supported platforms even when it's meaningless. In other words
1429         # probe would fail, but probed option always accepted...
1430         push @{$config{cflags}}, "-Wa,--noexecstack", "-Qunused-arguments";
1431     } else {
1432         my $cc = $config{CROSS_COMPILE}.$config{CC};
1433         open(PIPE, "$cc -Wa,--help -c -o null.$$.o -x assembler /dev/null 2>&1 |");
1434         while(<PIPE>) {
1435             if (m/--noexecstack/) {
1436                 push @{$config{cflags}}, "-Wa,--noexecstack";
1437                 last;
1438             }
1439         }
1440         close(PIPE);
1441         unlink("null.$$.o");
1442     }
1443 }
1444
1445 # Deal with bn_ops ###################################################
1446
1447 $config{bn_ll}                  =0;
1448 $config{export_var_as_fn}       =0;
1449 my $def_int="unsigned int";
1450 $config{rc4_int}                =$def_int;
1451 ($config{b64l},$config{b64},$config{b32})=(0,0,1);
1452
1453 my $count = 0;
1454 foreach (sort split(/\s+/,$target{bn_ops})) {
1455     $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
1456     $config{export_var_as_fn}=1                 if $_ eq 'EXPORT_VAR_AS_FN';
1457     $config{bn_ll}=1                            if $_ eq 'BN_LLONG';
1458     $config{rc4_int}="unsigned char"            if $_ eq 'RC4_CHAR';
1459     ($config{b64l},$config{b64},$config{b32})
1460         =(0,1,0)                                if $_ eq 'SIXTY_FOUR_BIT';
1461     ($config{b64l},$config{b64},$config{b32})
1462         =(1,0,0)                                if $_ eq 'SIXTY_FOUR_BIT_LONG';
1463     ($config{b64l},$config{b64},$config{b32})
1464         =(0,0,1)                                if $_ eq 'THIRTY_TWO_BIT';
1465 }
1466 die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
1467     if $count > 1;
1468
1469
1470 # Hack cflags for better warnings (dev option) #######################
1471
1472 # "Stringify" the C and C++ flags string.  This permits it to be made part of
1473 # a string and works as well on command lines.
1474 $config{cflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1475                         @{$config{cflags}} ];
1476 $config{cxxflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1477                           @{$config{cxxflags}} ] if $config{CXX};
1478
1479 if (defined($config{api})) {
1480     $config{openssl_api_defines} = [ "OPENSSL_MIN_API=".$apitable->{$config{api}} ];
1481     my $apiflag = sprintf("OPENSSL_API_COMPAT=%s", $apitable->{$config{api}});
1482     push @{$config{defines}}, $apiflag;
1483 }
1484
1485 my @strict_warnings_collection=();
1486 if ($strict_warnings)
1487         {
1488         my $wopt;
1489         my $gccver = $predefined_C{__GNUC__} // -1;
1490
1491         if ($gccver >= 4)
1492                 {
1493                 push @strict_warnings_collection, @gcc_devteam_warn;
1494                 push @strict_warnings_collection, @clang_devteam_warn
1495                     if (defined($predefined_C{__clang__}));
1496                 }
1497         elsif ($config{target} =~ /^VC-/)
1498                 {
1499                 push @strict_warnings_collection, @cl_devteam_warn;
1500                 }
1501         else
1502                 {
1503                 warn "WARNING --strict-warnings requires gcc[>=4] or gcc-alike, or MSVC"
1504                 }
1505         }
1506
1507 if (grep { $_ eq '-static' } @{$config{LDFLAGS}}) {
1508     disable('static', 'pic', 'threads');
1509 }
1510
1511 $config{CFLAGS} = [ map { $_ eq '--ossl-strict-warnings'
1512                               ? @strict_warnings_collection
1513                               : ( $_ ) }
1514                     @{$config{CFLAGS}} ];
1515
1516 unless ($disabled{"crypto-mdebug-backtrace"})
1517         {
1518         foreach my $wopt (split /\s+/, $memleak_devteam_backtrace)
1519                 {
1520                 push @{$config{cflags}}, $wopt
1521                         unless grep { $_ eq $wopt } @{$config{cflags}};
1522                 }
1523         if ($target =~ /^BSD-/)
1524                 {
1525                 push @{$config{ex_libs}}, "-lexecinfo";
1526                 }
1527         }
1528
1529 unless ($disabled{afalgeng}) {
1530     $config{afalgeng}="";
1531     if (grep { $_ eq 'afalgeng' } @{$target{enable}}) {
1532         my $minver = 4*10000 + 1*100 + 0;
1533         if ($config{CROSS_COMPILE} eq "") {
1534             my $verstr = `uname -r`;
1535             my ($ma, $mi1, $mi2) = split("\\.", $verstr);
1536             ($mi2) = $mi2 =~ /(\d+)/;
1537             my $ver = $ma*10000 + $mi1*100 + $mi2;
1538             if ($ver < $minver) {
1539                 disable('too-old-kernel', 'afalgeng');
1540             } else {
1541                 push @{$config{engdirs}}, "afalg";
1542             }
1543         } else {
1544             disable('cross-compiling', 'afalgeng');
1545         }
1546     } else {
1547         disable('not-linux', 'afalgeng');
1548     }
1549 }
1550
1551 unless ($disabled{devcryptoeng}) {
1552     if ($target =~ m/^BSD/) {
1553         my $maxver = 5*100 + 7;
1554         my $sysstr = `uname -s`;
1555         my $verstr = `uname -r`;
1556         $sysstr =~ s|\R$||;
1557         $verstr =~ s|\R$||;
1558         my ($ma, $mi, @rest) = split m|\.|, $verstr;
1559         my $ver = $ma*100 + $mi;
1560         if ($sysstr eq 'OpenBSD' && $ver >= $maxver) {
1561             disable('too-new-kernel', 'devcryptoeng');
1562         }
1563     }
1564 }
1565
1566 # Get the extra flags used when building shared libraries and modules.  We
1567 # do this late because some of them depend on %disabled.
1568
1569 # Make the flags to build DSOs the same as for shared libraries unless they
1570 # are already defined
1571 $target{module_cflags} = $target{shared_cflag} unless defined $target{module_cflags};
1572 $target{module_cxxflags} = $target{shared_cxxflag} unless defined $target{module_cxxflags};
1573 $target{module_ldflags} = $target{shared_ldflag} unless defined $target{module_ldflags};
1574 {
1575     my $shared_info_pl =
1576         catfile(dirname($0), "Configurations", "shared-info.pl");
1577     my %shared_info = read_eval_file($shared_info_pl);
1578     push @{$target{_conf_fname_int}}, $shared_info_pl;
1579     my $si = $target{shared_target};
1580     while (ref $si ne "HASH") {
1581         last if ! defined $si;
1582         if (ref $si eq "CODE") {
1583             $si = $si->();
1584         } else {
1585             $si = $shared_info{$si};
1586         }
1587     }
1588
1589     # Some of the 'shared_target' values don't have any entries in
1590     # %shared_info.  That's perfectly fine, AS LONG AS the build file
1591     # template knows how to handle this.  That is currently the case for
1592     # Windows and VMS.
1593     if (defined $si) {
1594         # Just as above, copy certain shared_* attributes to the corresponding
1595         # module_ attribute unless the latter is already defined
1596         $si->{module_cflags} = $si->{shared_cflag} unless defined $si->{module_cflags};
1597         $si->{module_cxxflags} = $si->{shared_cxxflag} unless defined $si->{module_cxxflags};
1598         $si->{module_ldflags} = $si->{shared_ldflag} unless defined $si->{module_ldflags};
1599         foreach (sort keys %$si) {
1600             $target{$_} = defined $target{$_}
1601                 ? add($si->{$_})->($target{$_})
1602                 : $si->{$_};
1603         }
1604     }
1605 }
1606
1607 # ALL MODIFICATIONS TO %disabled, %config and %target MUST BE DONE FROM HERE ON
1608
1609 my %disabled_info = ();         # For configdata.pm
1610 foreach my $what (sort keys %disabled) {
1611     $config{options} .= " no-$what";
1612
1613     if (!grep { $what eq $_ } ( 'buildtest-c++', 'threads', 'shared', 'pic',
1614                                 'dynamic-engine', 'makedepend',
1615                                 'zlib-dynamic', 'zlib', 'sse2' )) {
1616         (my $WHAT = uc $what) =~ s|-|_|g;
1617
1618         # Fix up C macro end names
1619         $WHAT = "RMD160" if $what eq "ripemd";
1620
1621         # fix-up crypto/directory name(s)
1622         $what = "ripemd" if $what eq "rmd160";
1623         $what = "whrlpool" if $what eq "whirlpool";
1624
1625         my $macro = $disabled_info{$what}->{macro} = "OPENSSL_NO_$WHAT";
1626
1627         if ((grep { $what eq $_ } @{$config{sdirs}})
1628                 && $what ne 'async' && $what ne 'err' && $what ne 'dso') {
1629             @{$config{sdirs}} = grep { $what ne $_} @{$config{sdirs}};
1630             $disabled_info{$what}->{skipped} = [ catdir('crypto', $what) ];
1631
1632             if ($what ne 'engine') {
1633                 push @{$config{openssl_algorithm_defines}}, $macro;
1634             } else {
1635                 @{$config{dirs}} = grep !/^engines$/, @{$config{dirs}};
1636                 push @{$disabled_info{engine}->{skipped}}, catdir('engines');
1637                 push @{$config{openssl_other_defines}}, $macro;
1638             }
1639         } else {
1640             push @{$config{openssl_other_defines}}, $macro;
1641         }
1642
1643     }
1644 }
1645
1646 if ($disabled{"dynamic-engine"}) {
1647     push @{$config{openssl_other_defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
1648 } else {
1649     push @{$config{openssl_other_defines}}, "OPENSSL_NO_STATIC_ENGINE";
1650 }
1651
1652 # If we use the unified build, collect information from build.info files
1653 my %unified_info = ();
1654
1655 my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
1656 if ($builder eq "unified") {
1657     use with_fallback qw(Text::Template);
1658
1659     sub cleandir {
1660         my $base = shift;
1661         my $dir = shift;
1662         my $relativeto = shift || ".";
1663
1664         $dir = catdir($base,$dir) unless isabsolute($dir);
1665
1666         # Make sure the directories we're building in exists
1667         mkpath($dir);
1668
1669         my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
1670         #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
1671         return $res;
1672     }
1673
1674     sub cleanfile {
1675         my $base = shift;
1676         my $file = shift;
1677         my $relativeto = shift || ".";
1678
1679         $file = catfile($base,$file) unless isabsolute($file);
1680
1681         my $d = dirname($file);
1682         my $f = basename($file);
1683
1684         # Make sure the directories we're building in exists
1685         mkpath($d);
1686
1687         my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
1688         #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
1689         return $res;
1690     }
1691
1692     # Store the name of the template file we will build the build file from
1693     # in %config.  This may be useful for the build file itself.
1694     my @build_file_template_names =
1695         ( $builder_platform."-".$target{build_file}.".tmpl",
1696           $target{build_file}.".tmpl" );
1697     my @build_file_templates = ();
1698
1699     # First, look in the user provided directory, if given
1700     if (defined env($local_config_envname)) {
1701         @build_file_templates =
1702             map {
1703                 if ($^O eq 'VMS') {
1704                     # VMS environment variables are logical names,
1705                     # which can be used as is
1706                     $local_config_envname . ':' . $_;
1707                 } else {
1708                     catfile(env($local_config_envname), $_);
1709                 }
1710             }
1711             @build_file_template_names;
1712     }
1713     # Then, look in our standard directory
1714     push @build_file_templates,
1715         ( map { cleanfile($srcdir, catfile("Configurations", $_), $blddir) }
1716           @build_file_template_names );
1717
1718     my $build_file_template;
1719     for $_ (@build_file_templates) {
1720         $build_file_template = $_;
1721         last if -f $build_file_template;
1722
1723         $build_file_template = undef;
1724     }
1725     if (!defined $build_file_template) {
1726         die "*** Couldn't find any of:\n", join("\n", @build_file_templates), "\n";
1727     }
1728     $config{build_file_templates}
1729       = [ cleanfile($srcdir, catfile("Configurations", "common0.tmpl"),
1730                     $blddir),
1731           $build_file_template,
1732           cleanfile($srcdir, catfile("Configurations", "common.tmpl"),
1733                     $blddir) ];
1734
1735     my @build_infos = ( [ ".", "build.info" ] );
1736     foreach (@{$config{dirs}}) {
1737         push @build_infos, [ $_, "build.info" ]
1738             if (-f catfile($srcdir, $_, "build.info"));
1739     }
1740     foreach (@{$config{sdirs}}) {
1741         push @build_infos, [ catdir("crypto", $_), "build.info" ]
1742             if (-f catfile($srcdir, "crypto", $_, "build.info"));
1743     }
1744     foreach (@{$config{engdirs}}) {
1745         push @build_infos, [ catdir("engines", $_), "build.info" ]
1746             if (-f catfile($srcdir, "engines", $_, "build.info"));
1747     }
1748     foreach (@{$config{tdirs}}) {
1749         push @build_infos, [ catdir("test", $_), "build.info" ]
1750             if (-f catfile($srcdir, "test", $_, "build.info"));
1751     }
1752
1753     $config{build_infos} = [ ];
1754
1755     my %ordinals = ();
1756     foreach (@build_infos) {
1757         my $sourced = catdir($srcdir, $_->[0]);
1758         my $buildd = catdir($blddir, $_->[0]);
1759
1760         mkpath($buildd);
1761
1762         my $f = $_->[1];
1763         # The basic things we're trying to build
1764         my @programs = ();
1765         my @programs_install = ();
1766         my @libraries = ();
1767         my @libraries_install = ();
1768         my @engines = ();
1769         my @engines_install = ();
1770         my @scripts = ();
1771         my @scripts_install = ();
1772         my @extra = ();
1773         my @overrides = ();
1774         my @intermediates = ();
1775         my @rawlines = ();
1776
1777         my %sources = ();
1778         my %shared_sources = ();
1779         my %includes = ();
1780         my %depends = ();
1781         my %renames = ();
1782         my %sharednames = ();
1783         my %generate = ();
1784
1785         # We want to detect configdata.pm in the source tree, so we
1786         # don't use it if the build tree is different.
1787         my $src_configdata = cleanfile($srcdir, "configdata.pm", $blddir);
1788
1789         push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
1790         my $template =
1791             Text::Template->new(TYPE => 'FILE',
1792                                 SOURCE => catfile($sourced, $f),
1793                                 PREPEND => qq{use lib "$FindBin::Bin/util/perl";});
1794         die "Something went wrong with $sourced/$f: $!\n" unless $template;
1795         my @text =
1796             split /^/m,
1797             $template->fill_in(HASH => { config => \%config,
1798                                          target => \%target,
1799                                          disabled => \%disabled,
1800                                          withargs => \%withargs,
1801                                          builddir => abs2rel($buildd, $blddir),
1802                                          sourcedir => abs2rel($sourced, $blddir),
1803                                          buildtop => abs2rel($blddir, $blddir),
1804                                          sourcetop => abs2rel($srcdir, $blddir) },
1805                                DELIMITERS => [ "{-", "-}" ]);
1806
1807         # The top item of this stack has the following values
1808         # -2 positive already run and we found ELSE (following ELSIF should fail)
1809         # -1 positive already run (skip until ENDIF)
1810         # 0 negatives so far (if we're at a condition, check it)
1811         # 1 last was positive (don't skip lines until next ELSE, ELSIF or ENDIF)
1812         # 2 positive ELSE (following ELSIF should fail)
1813         my @skip = ();
1814         collect_information(
1815             collect_from_array([ @text ],
1816                                qr/\\$/ => sub { my $l1 = shift; my $l2 = shift;
1817                                                 $l1 =~ s/\\$//; $l1.$l2 }),
1818             # Info we're looking for
1819             qr/^\s*IF\[((?:\\.|[^\\\]])*)\]\s*$/
1820             => sub {
1821                 if (! @skip || $skip[$#skip] > 0) {
1822                     push @skip, !! $1;
1823                 } else {
1824                     push @skip, -1;
1825                 }
1826             },
1827             qr/^\s*ELSIF\[((?:\\.|[^\\\]])*)\]\s*$/
1828             => sub { die "ELSIF out of scope" if ! @skip;
1829                      die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
1830                      $skip[$#skip] = -1 if $skip[$#skip] != 0;
1831                      $skip[$#skip] = !! $1
1832                          if $skip[$#skip] == 0; },
1833             qr/^\s*ELSE\s*$/
1834             => sub { die "ELSE out of scope" if ! @skip;
1835                      $skip[$#skip] = -2 if $skip[$#skip] != 0;
1836                      $skip[$#skip] = 2 if $skip[$#skip] == 0; },
1837             qr/^\s*ENDIF\s*$/
1838             => sub { die "ENDIF out of scope" if ! @skip;
1839                      pop @skip; },
1840             qr/^\s*PROGRAMS(_NO_INST)?\s*=\s*(.*)\s*$/
1841             => sub {
1842                 if (!@skip || $skip[$#skip] > 0) {
1843                     my $install = $1;
1844                     my @x = tokenize($2);
1845                     push @programs, @x;
1846                     push @programs_install, @x unless $install;
1847                 }
1848             },
1849             qr/^\s*LIBS(_NO_INST)?\s*=\s*(.*)\s*$/
1850             => sub {
1851                 if (!@skip || $skip[$#skip] > 0) {
1852                     my $install = $1;
1853                     my @x = tokenize($2);
1854                     push @libraries, @x;
1855                     push @libraries_install, @x unless $install;
1856                 }
1857             },
1858             qr/^\s*ENGINES(_NO_INST)?\s*=\s*(.*)\s*$/
1859             => sub {
1860                 if (!@skip || $skip[$#skip] > 0) {
1861                     my $install = $1;
1862                     my @x = tokenize($2);
1863                     push @engines, @x;
1864                     push @engines_install, @x unless $install;
1865                 }
1866             },
1867             qr/^\s*SCRIPTS(_NO_INST)?\s*=\s*(.*)\s*$/
1868             => sub {
1869                 if (!@skip || $skip[$#skip] > 0) {
1870                     my $install = $1;
1871                     my @x = tokenize($2);
1872                     push @scripts, @x;
1873                     push @scripts_install, @x unless $install;
1874                 }
1875             },
1876             qr/^\s*EXTRA\s*=\s*(.*)\s*$/
1877             => sub { push @extra, tokenize($1)
1878                          if !@skip || $skip[$#skip] > 0 },
1879             qr/^\s*OVERRIDES\s*=\s*(.*)\s*$/
1880             => sub { push @overrides, tokenize($1)
1881                          if !@skip || $skip[$#skip] > 0 },
1882
1883             qr/^\s*ORDINALS\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/,
1884             => sub { push @{$ordinals{$1}}, tokenize($2)
1885                          if !@skip || $skip[$#skip] > 0 },
1886             qr/^\s*SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1887             => sub { push @{$sources{$1}}, tokenize($2)
1888                          if !@skip || $skip[$#skip] > 0 },
1889             qr/^\s*SHARED_SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1890             => sub { push @{$shared_sources{$1}}, tokenize($2)
1891                          if !@skip || $skip[$#skip] > 0 },
1892             qr/^\s*INCLUDE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1893             => sub { push @{$includes{$1}}, tokenize($2)
1894                          if !@skip || $skip[$#skip] > 0 },
1895             qr/^\s*DEPEND\[((?:\\.|[^\\\]])*)\]\s*=\s*(.*)\s*$/
1896             => sub { push @{$depends{$1}}, tokenize($2)
1897                          if !@skip || $skip[$#skip] > 0 },
1898             qr/^\s*GENERATE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1899             => sub { push @{$generate{$1}}, $2
1900                          if !@skip || $skip[$#skip] > 0 },
1901             qr/^\s*RENAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1902             => sub { push @{$renames{$1}}, tokenize($2)
1903                          if !@skip || $skip[$#skip] > 0 },
1904             qr/^\s*SHARED_NAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1905             => sub { push @{$sharednames{$1}}, tokenize($2)
1906                          if !@skip || $skip[$#skip] > 0 },
1907             qr/^\s*BEGINRAW\[((?:\\.|[^\\\]])+)\]\s*$/
1908             => sub {
1909                 my $lineiterator = shift;
1910                 my $target_kind = $1;
1911                 while (defined $lineiterator->()) {
1912                     s|\R$||;
1913                     if (/^\s*ENDRAW\[((?:\\.|[^\\\]])+)\]\s*$/) {
1914                         die "ENDRAW doesn't match BEGINRAW"
1915                             if $1 ne $target_kind;
1916                         last;
1917                     }
1918                     next if @skip && $skip[$#skip] <= 0;
1919                     push @rawlines,  $_
1920                         if ($target_kind eq $target{build_file}
1921                             || $target_kind eq $target{build_file}."(".$builder_platform.")");
1922                 }
1923             },
1924             qr/^\s*(?:#.*)?$/ => sub { },
1925             "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
1926             "BEFORE" => sub {
1927                 if ($buildinfo_debug) {
1928                     print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
1929                     print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1930                 }
1931             },
1932             "AFTER" => sub {
1933                 if ($buildinfo_debug) {
1934                     print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1935                 }
1936             },
1937             );
1938         die "runaway IF?" if (@skip);
1939
1940         foreach (keys %renames) {
1941             die "$_ renamed to more than one thing: "
1942                 ,join(" ", @{$renames{$_}}),"\n"
1943                 if scalar @{$renames{$_}} > 1;
1944             my $dest = cleanfile($buildd, $_, $blddir);
1945             my $to = cleanfile($buildd, $renames{$_}->[0], $blddir);
1946             die "$dest renamed to more than one thing: "
1947                 ,$unified_info{rename}->{$dest}, $to
1948                 unless !defined($unified_info{rename}->{$dest})
1949                 or $unified_info{rename}->{$dest} eq $to;
1950             $unified_info{rename}->{$dest} = $to;
1951         }
1952
1953         foreach (@programs) {
1954             my $program = cleanfile($buildd, $_, $blddir);
1955             if ($unified_info{rename}->{$program}) {
1956                 $program = $unified_info{rename}->{$program};
1957             }
1958             $unified_info{programs}->{$program} = 1;
1959         }
1960
1961         foreach (@programs_install) {
1962             my $program = cleanfile($buildd, $_, $blddir);
1963             if ($unified_info{rename}->{$program}) {
1964                 $program = $unified_info{rename}->{$program};
1965             }
1966             $unified_info{install}->{programs}->{$program} = 1;
1967         }
1968
1969         foreach (@libraries) {
1970             my $library = cleanfile($buildd, $_, $blddir);
1971             if ($unified_info{rename}->{$library}) {
1972                 $library = $unified_info{rename}->{$library};
1973             }
1974             $unified_info{libraries}->{$library} = 1;
1975         }
1976
1977         foreach (@libraries_install) {
1978             my $library = cleanfile($buildd, $_, $blddir);
1979             if ($unified_info{rename}->{$library}) {
1980                 $library = $unified_info{rename}->{$library};
1981             }
1982             $unified_info{install}->{libraries}->{$library} = 1;
1983         }
1984
1985         die <<"EOF" if scalar @engines and !$config{dynamic_engines};
1986 ENGINES can only be used if configured with 'dynamic-engine'.
1987 This is usually a fault in a build.info file.
1988 EOF
1989         foreach (@engines) {
1990             my $library = cleanfile($buildd, $_, $blddir);
1991             if ($unified_info{rename}->{$library}) {
1992                 $library = $unified_info{rename}->{$library};
1993             }
1994             $unified_info{engines}->{$library} = 1;
1995         }
1996
1997         foreach (@engines_install) {
1998             my $library = cleanfile($buildd, $_, $blddir);
1999             if ($unified_info{rename}->{$library}) {
2000                 $library = $unified_info{rename}->{$library};
2001             }
2002             $unified_info{install}->{engines}->{$library} = 1;
2003         }
2004
2005         foreach (@scripts) {
2006             my $script = cleanfile($buildd, $_, $blddir);
2007             if ($unified_info{rename}->{$script}) {
2008                 $script = $unified_info{rename}->{$script};
2009             }
2010             $unified_info{scripts}->{$script} = 1;
2011         }
2012
2013         foreach (@scripts_install) {
2014             my $script = cleanfile($buildd, $_, $blddir);
2015             if ($unified_info{rename}->{$script}) {
2016                 $script = $unified_info{rename}->{$script};
2017             }
2018             $unified_info{install}->{scripts}->{$script} = 1;
2019         }
2020
2021         foreach (@extra) {
2022             my $extra = cleanfile($buildd, $_, $blddir);
2023             $unified_info{extra}->{$extra} = 1;
2024         }
2025
2026         foreach (@overrides) {
2027             my $override = cleanfile($buildd, $_, $blddir);
2028             $unified_info{overrides}->{$override} = 1;
2029         }
2030
2031         push @{$unified_info{rawlines}}, @rawlines;
2032
2033         unless ($disabled{shared}) {
2034             # Check sharednames.
2035             foreach (keys %sharednames) {
2036                 my $dest = cleanfile($buildd, $_, $blddir);
2037                 if ($unified_info{rename}->{$dest}) {
2038                     $dest = $unified_info{rename}->{$dest};
2039                 }
2040                 die "shared_name for $dest with multiple values: "
2041                     ,join(" ", @{$sharednames{$_}}),"\n"
2042                     if scalar @{$sharednames{$_}} > 1;
2043                 my $to = cleanfile($buildd, $sharednames{$_}->[0], $blddir);
2044                 die "shared_name found for a library $dest that isn't defined\n"
2045                     unless $unified_info{libraries}->{$dest};
2046                 die "shared_name for $dest with multiple values: "
2047                     ,$unified_info{sharednames}->{$dest}, ", ", $to
2048                     unless !defined($unified_info{sharednames}->{$dest})
2049                     or $unified_info{sharednames}->{$dest} eq $to;
2050                 $unified_info{sharednames}->{$dest} = $to;
2051             }
2052
2053             # Additionally, we set up sharednames for libraries that don't
2054             # have any, as themselves.  Only for libraries that aren't
2055             # explicitly static.
2056             foreach (grep !/\.a$/, keys %{$unified_info{libraries}}) {
2057                 if (!defined $unified_info{sharednames}->{$_}) {
2058                     $unified_info{sharednames}->{$_} = $_
2059                 }
2060             }
2061
2062             # Check that we haven't defined any library as both shared and
2063             # explicitly static.  That is forbidden.
2064             my @doubles = ();
2065             foreach (grep /\.a$/, keys %{$unified_info{libraries}}) {
2066                 (my $l = $_) =~ s/\.a$//;
2067                 push @doubles, $l if defined $unified_info{sharednames}->{$l};
2068             }
2069             die "these libraries are both explicitly static and shared:\n  ",
2070                 join(" ", @doubles), "\n"
2071                 if @doubles;
2072         }
2073
2074         foreach (keys %sources) {
2075             my $dest = $_;
2076             my $ddest = cleanfile($buildd, $_, $blddir);
2077             if ($unified_info{rename}->{$ddest}) {
2078                 $ddest = $unified_info{rename}->{$ddest};
2079             }
2080             foreach (@{$sources{$dest}}) {
2081                 my $s = cleanfile($sourced, $_, $blddir);
2082
2083                 # If it isn't in the source tree, we assume it's generated
2084                 # in the build tree
2085                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
2086                     $s = cleanfile($buildd, $_, $blddir);
2087                 }
2088                 # We recognise C++, C and asm files
2089                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2090                     my $o = $_;
2091                     $o =~ s/\.[csS]$/.o/; # C and assembler
2092                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2093                     $o = cleanfile($buildd, $o, $blddir);
2094                     $unified_info{sources}->{$ddest}->{$o} = 1;
2095                     $unified_info{sources}->{$o}->{$s} = 1;
2096                 } elsif ($s =~ /\.rc$/) {
2097                     # We also recognise resource files
2098                     my $o = $_;
2099                     $o =~ s/\.rc$/.res/; # Resource configuration
2100                     my $o = cleanfile($buildd, $o, $blddir);
2101                     $unified_info{sources}->{$ddest}->{$o} = 1;
2102                     $unified_info{sources}->{$o}->{$s} = 1;
2103                 } else {
2104                     $unified_info{sources}->{$ddest}->{$s} = 1;
2105                 }
2106             }
2107         }
2108
2109         foreach (keys %shared_sources) {
2110             my $dest = $_;
2111             my $ddest = cleanfile($buildd, $_, $blddir);
2112             if ($unified_info{rename}->{$ddest}) {
2113                 $ddest = $unified_info{rename}->{$ddest};
2114             }
2115             foreach (@{$shared_sources{$dest}}) {
2116                 my $s = cleanfile($sourced, $_, $blddir);
2117
2118                 # If it isn't in the source tree, we assume it's generated
2119                 # in the build tree
2120                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
2121                     $s = cleanfile($buildd, $_, $blddir);
2122                 }
2123
2124                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2125                     # We recognise C++, C and asm files
2126                     my $o = $_;
2127                     $o =~ s/\.[csS]$/.o/; # C and assembler
2128                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2129                     $o = cleanfile($buildd, $o, $blddir);
2130                     $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2131                     $unified_info{sources}->{$o}->{$s} = 1;
2132                 } elsif ($s =~ /\.rc$/) {
2133                     # We also recognise resource files
2134                     my $o = $_;
2135                     $o =~ s/\.rc$/.res/; # Resource configuration
2136                     my $o = cleanfile($buildd, $o, $blddir);
2137                     $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2138                     $unified_info{sources}->{$o}->{$s} = 1;
2139                 } elsif ($s =~ /\.(def|map|opt)$/) {
2140                     # We also recognise .def / .map / .opt files
2141                     # We know they are generated files
2142                     my $def = cleanfile($buildd, $s, $blddir);
2143                     $unified_info{shared_sources}->{$ddest}->{$def} = 1;
2144                 } else {
2145                     die "unrecognised source file type for shared library: $s\n";
2146                 }
2147             }
2148         }
2149
2150         foreach (keys %generate) {
2151             my $dest = $_;
2152             my $ddest = cleanfile($buildd, $_, $blddir);
2153             if ($unified_info{rename}->{$ddest}) {
2154                 $ddest = $unified_info{rename}->{$ddest};
2155             }
2156             die "more than one generator for $dest: "
2157                     ,join(" ", @{$generate{$_}}),"\n"
2158                     if scalar @{$generate{$_}} > 1;
2159             my @generator = split /\s+/, $generate{$dest}->[0];
2160             $generator[0] = cleanfile($sourced, $generator[0], $blddir),
2161             $unified_info{generate}->{$ddest} = [ @generator ];
2162         }
2163
2164         foreach (keys %depends) {
2165             my $dest = $_;
2166             my $ddest = $dest eq "" ? "" : cleanfile($sourced, $_, $blddir);
2167
2168             # If the destination doesn't exist in source, it can only be
2169             # a generated file in the build tree.
2170             if ($ddest ne "" && ($ddest eq $src_configdata || ! -f $ddest)) {
2171                 $ddest = cleanfile($buildd, $_, $blddir);
2172                 if ($unified_info{rename}->{$ddest}) {
2173                     $ddest = $unified_info{rename}->{$ddest};
2174                 }
2175             }
2176             foreach (@{$depends{$dest}}) {
2177                 my $d = cleanfile($sourced, $_, $blddir);
2178
2179                 # If we know it's generated, or assume it is because we can't
2180                 # find it in the source tree, we set file we depend on to be
2181                 # in the build tree rather than the source tree, and assume
2182                 # and that there are lines to build it in a BEGINRAW..ENDRAW
2183                 # section or in the Makefile template.
2184                 if ($d eq $src_configdata
2185                     || ! -f $d
2186                     || (grep { $d eq $_ }
2187                         map { cleanfile($srcdir, $_, $blddir) }
2188                         grep { /\.h$/ } keys %{$unified_info{generate}})) {
2189                     $d = cleanfile($buildd, $_, $blddir);
2190                 }
2191                 # Take note if the file to depend on is being renamed
2192                 # Take extra care with files ending with .a, they should
2193                 # be treated without that extension, and the extension
2194                 # should be added back after treatment.
2195                 $d =~ /(\.a)?$/;
2196                 my $e = $1 // "";
2197                 $d = $`;
2198                 if ($unified_info{rename}->{$d}) {
2199                     $d = $unified_info{rename}->{$d};
2200                 }
2201                 $d .= $e;
2202                 $unified_info{depends}->{$ddest}->{$d} = 1;
2203             }
2204         }
2205
2206         foreach (keys %includes) {
2207             my $dest = $_;
2208             my $ddest = cleanfile($sourced, $_, $blddir);
2209
2210             # If the destination doesn't exist in source, it can only be
2211             # a generated file in the build tree.
2212             if ($ddest eq $src_configdata || ! -f $ddest) {
2213                 $ddest = cleanfile($buildd, $_, $blddir);
2214                 if ($unified_info{rename}->{$ddest}) {
2215                     $ddest = $unified_info{rename}->{$ddest};
2216                 }
2217             }
2218             foreach (@{$includes{$dest}}) {
2219                 my $is = cleandir($sourced, $_, $blddir);
2220                 my $ib = cleandir($buildd, $_, $blddir);
2221                 push @{$unified_info{includes}->{$ddest}->{source}}, $is
2222                     unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
2223                 push @{$unified_info{includes}->{$ddest}->{build}}, $ib
2224                     unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
2225             }
2226         }
2227     }
2228
2229     my $ordinals_text = join(', ', sort keys %ordinals);
2230     warn <<"EOF" if $ordinals_text;
2231
2232 WARNING: ORDINALS were specified for $ordinals_text
2233 They are ignored and should be replaced with a combination of GENERATE,
2234 DEPEND and SHARED_SOURCE.
2235 EOF
2236
2237     # Massage the result
2238
2239     # If the user configured no-shared, we allow no shared sources
2240     if ($disabled{shared}) {
2241         foreach (keys %{$unified_info{shared_sources}}) {
2242             foreach (keys %{$unified_info{shared_sources}->{$_}}) {
2243                 delete $unified_info{sources}->{$_};
2244             }
2245         }
2246         $unified_info{shared_sources} = {};
2247     }
2248
2249     # If we depend on a header file or a perl module, add an inclusion of
2250     # its directory to allow smoothe inclusion
2251     foreach my $dest (keys %{$unified_info{depends}}) {
2252         next if $dest eq "";
2253         foreach my $d (keys %{$unified_info{depends}->{$dest}}) {
2254             next unless $d =~ /\.(h|pm)$/;
2255             my $i = dirname($d);
2256             my $spot =
2257                 $d eq "configdata.pm" || defined($unified_info{generate}->{$d})
2258                 ? 'build' : 'source';
2259             push @{$unified_info{includes}->{$dest}->{$spot}}, $i
2260                 unless grep { $_ eq $i } @{$unified_info{includes}->{$dest}->{$spot}};
2261         }
2262     }
2263
2264     # Trickle down includes placed on libraries, engines and programs to
2265     # their sources (i.e. object files)
2266     foreach my $dest (keys %{$unified_info{engines}},
2267                       keys %{$unified_info{libraries}},
2268                       keys %{$unified_info{programs}}) {
2269         foreach my $k (("source", "build")) {
2270             next unless defined($unified_info{includes}->{$dest}->{$k});
2271             my @incs = reverse @{$unified_info{includes}->{$dest}->{$k}};
2272             foreach my $obj (grep /\.o$/,
2273                              (keys %{$unified_info{sources}->{$dest} // {}},
2274                               keys %{$unified_info{shared_sources}->{$dest} // {}})) {
2275                 foreach my $inc (@incs) {
2276                     unshift @{$unified_info{includes}->{$obj}->{$k}}, $inc
2277                         unless grep { $_ eq $inc } @{$unified_info{includes}->{$obj}->{$k}};
2278                 }
2279             }
2280         }
2281         delete $unified_info{includes}->{$dest};
2282     }
2283
2284     ### Make unified_info a bit more efficient
2285     # One level structures
2286     foreach (("programs", "libraries", "engines", "scripts", "extra", "overrides")) {
2287         $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
2288     }
2289     # Two level structures
2290     foreach my $l1 (("install", "sources", "shared_sources", "ldadd", "depends")) {
2291         foreach my $l2 (sort keys %{$unified_info{$l1}}) {
2292             $unified_info{$l1}->{$l2} =
2293                 [ sort keys %{$unified_info{$l1}->{$l2}} ];
2294         }
2295     }
2296     # Includes
2297     foreach my $dest (sort keys %{$unified_info{includes}}) {
2298         if (defined($unified_info{includes}->{$dest}->{build})) {
2299             my @source_includes = ();
2300             @source_includes = ( @{$unified_info{includes}->{$dest}->{source}} )
2301                 if defined($unified_info{includes}->{$dest}->{source});
2302             $unified_info{includes}->{$dest} =
2303                 [ @{$unified_info{includes}->{$dest}->{build}} ];
2304             foreach my $inc (@source_includes) {
2305                 push @{$unified_info{includes}->{$dest}}, $inc
2306                     unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
2307             }
2308         } else {
2309             $unified_info{includes}->{$dest} =
2310                 [ @{$unified_info{includes}->{$dest}->{source}} ];
2311         }
2312     }
2313
2314     # For convenience collect information regarding directories where
2315     # files are generated, those generated files and the end product
2316     # they end up in where applicable.  Then, add build rules for those
2317     # directories
2318     my %loopinfo = ( "lib" => [ @{$unified_info{libraries}} ],
2319                      "dso" => [ @{$unified_info{engines}} ],
2320                      "bin" => [ @{$unified_info{programs}} ],
2321                      "script" => [ @{$unified_info{scripts}} ] );
2322     foreach my $type (keys %loopinfo) {
2323         foreach my $product (@{$loopinfo{$type}}) {
2324             my %dirs = ();
2325             my $pd = dirname($product);
2326
2327             foreach (@{$unified_info{sources}->{$product} // []},
2328                      @{$unified_info{shared_sources}->{$product} // []}) {
2329                 my $d = dirname($_);
2330
2331                 # We don't want to create targets for source directories
2332                 # when building out of source
2333                 next if ($config{sourcedir} ne $config{builddir}
2334                              && $d =~ m|^\Q$config{sourcedir}\E|);
2335                 # We already have a "test" target, and the current directory
2336                 # is just silly to make a target for
2337                 next if $d eq "test" || $d eq ".";
2338
2339                 $dirs{$d} = 1;
2340                 push @{$unified_info{dirinfo}->{$d}->{deps}}, $_
2341                     if $d ne $pd;
2342             }
2343             foreach (keys %dirs) {
2344                 push @{$unified_info{dirinfo}->{$_}->{products}->{$type}},
2345                     $product;
2346             }
2347         }
2348     }
2349 }
2350
2351 # For the schemes that need it, we provide the old *_obj configs
2352 # from the *_asm_obj ones
2353 foreach (grep /_(asm|aux)_src$/, keys %target) {
2354     my $src = $_;
2355     (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
2356     $target{$obj} = $target{$src};
2357     $target{$obj} =~ s/\.[csS]\b/.o/g; # C and assembler
2358     $target{$obj} =~ s/\.(cc|cpp)\b/_cc.o/g; # C++
2359 }
2360
2361 # Write down our configuration where it fits #########################
2362
2363 print "Creating configdata.pm\n";
2364 open(OUT,">configdata.pm") || die "unable to create configdata.pm: $!\n";
2365 print OUT <<"EOF";
2366 #! $config{HASHBANGPERL}
2367
2368 package configdata;
2369
2370 use strict;
2371 use warnings;
2372
2373 use Exporter;
2374 #use vars qw(\@ISA \@EXPORT);
2375 our \@ISA = qw(Exporter);
2376 our \@EXPORT = qw(\%config \%target \%disabled \%withargs \%unified_info \@disablables);
2377
2378 EOF
2379 print OUT "our %config = (\n";
2380 foreach (sort keys %config) {
2381     if (ref($config{$_}) eq "ARRAY") {
2382         print OUT "  ", $_, " => [ ", join(", ",
2383                                            map { quotify("perl", $_) }
2384                                            @{$config{$_}}), " ],\n";
2385     } elsif (ref($config{$_}) eq "HASH") {
2386         print OUT "  ", $_, " => {";
2387         if (scalar keys %{$config{$_}} > 0) {
2388             print OUT "\n";
2389             foreach my $key (sort keys %{$config{$_}}) {
2390                 print OUT "      ",
2391                     join(" => ",
2392                          quotify("perl", $key),
2393                          defined $config{$_}->{$key}
2394                              ? quotify("perl", $config{$_}->{$key})
2395                              : "undef");
2396                 print OUT ",\n";
2397             }
2398             print OUT "  ";
2399         }
2400         print OUT "},\n";
2401     } else {
2402         print OUT "  ", $_, " => ", quotify("perl", $config{$_}), ",\n"
2403     }
2404 }
2405 print OUT <<"EOF";
2406 );
2407
2408 EOF
2409 print OUT "our %target = (\n";
2410 foreach (sort keys %target) {
2411     if (ref($target{$_}) eq "ARRAY") {
2412         print OUT "  ", $_, " => [ ", join(", ",
2413                                            map { quotify("perl", $_) }
2414                                            @{$target{$_}}), " ],\n";
2415     } else {
2416         print OUT "  ", $_, " => ", quotify("perl", $target{$_}), ",\n"
2417     }
2418 }
2419 print OUT <<"EOF";
2420 );
2421
2422 EOF
2423 print OUT "our \%available_protocols = (\n";
2424 print OUT "  tls => [ ", join(", ", map { quotify("perl", $_) } @tls), " ],\n";
2425 print OUT "  dtls => [ ", join(", ", map { quotify("perl", $_) } @dtls), " ],\n";
2426 print OUT <<"EOF";
2427 );
2428
2429 EOF
2430 print OUT "our \@disablables = (\n";
2431 foreach (@disablables) {
2432     print OUT "  ", quotify("perl", $_), ",\n";
2433 }
2434 print OUT <<"EOF";
2435 );
2436
2437 EOF
2438 print OUT "our \%disabled = (\n";
2439 foreach (sort keys %disabled) {
2440     print OUT "  ", quotify("perl", $_), " => ", quotify("perl", $disabled{$_}), ",\n";
2441 }
2442 print OUT <<"EOF";
2443 );
2444
2445 EOF
2446 print OUT "our %withargs = (\n";
2447 foreach (sort keys %withargs) {
2448     if (ref($withargs{$_}) eq "ARRAY") {
2449         print OUT "  ", $_, " => [ ", join(", ",
2450                                            map { quotify("perl", $_) }
2451                                            @{$withargs{$_}}), " ],\n";
2452     } else {
2453         print OUT "  ", $_, " => ", quotify("perl", $withargs{$_}), ",\n"
2454     }
2455 }
2456 print OUT <<"EOF";
2457 );
2458
2459 EOF
2460 if ($builder eq "unified") {
2461     my $recurse;
2462     $recurse = sub {
2463         my $indent = shift;
2464         foreach (@_) {
2465             if (ref $_ eq "ARRAY") {
2466                 print OUT " "x$indent, "[\n";
2467                 foreach (@$_) {
2468                     $recurse->($indent + 4, $_);
2469                 }
2470                 print OUT " "x$indent, "],\n";
2471             } elsif (ref $_ eq "HASH") {
2472                 my %h = %$_;
2473                 print OUT " "x$indent, "{\n";
2474                 foreach (sort keys %h) {
2475                     if (ref $h{$_} eq "") {
2476                         print OUT " "x($indent + 4), quotify("perl", $_), " => ", quotify("perl", $h{$_}), ",\n";
2477                     } else {
2478                         print OUT " "x($indent + 4), quotify("perl", $_), " =>\n";
2479                         $recurse->($indent + 8, $h{$_});
2480                     }
2481                 }
2482                 print OUT " "x$indent, "},\n";
2483             } else {
2484                 print OUT " "x$indent, quotify("perl", $_), ",\n";
2485             }
2486         }
2487     };
2488     print OUT "our %unified_info = (\n";
2489     foreach (sort keys %unified_info) {
2490         if (ref $unified_info{$_} eq "") {
2491             print OUT " "x4, quotify("perl", $_), " => ", quotify("perl", $unified_info{$_}), ",\n";
2492         } else {
2493             print OUT " "x4, quotify("perl", $_), " =>\n";
2494             $recurse->(8, $unified_info{$_});
2495         }
2496     }
2497     print OUT <<"EOF";
2498 );
2499
2500 EOF
2501 }
2502 print OUT
2503     "# The following data is only used when this files is use as a script\n";
2504 print OUT "my \@makevars = (\n";
2505 foreach (sort keys %user) {
2506     print OUT "    '",$_,"',\n";
2507 }
2508 print OUT ");\n";
2509 print OUT "my \%disabled_info = (\n";
2510 foreach my $what (sort keys %disabled_info) {
2511     print OUT "    '$what' => {\n";
2512     foreach my $info (sort keys %{$disabled_info{$what}}) {
2513         if (ref $disabled_info{$what}->{$info} eq 'ARRAY') {
2514             print OUT "        $info => [ ",
2515                 join(', ', map { "'$_'" } @{$disabled_info{$what}->{$info}}),
2516                 " ],\n";
2517         } else {
2518             print OUT "        $info => '", $disabled_info{$what}->{$info},
2519                 "',\n";
2520         }
2521     }
2522     print OUT "    },\n";
2523 }
2524 print OUT ");\n";
2525 print OUT 'my @user_crossable = qw( ', join (' ', @user_crossable), " );\n";
2526 print OUT << 'EOF';
2527 # If run directly, we can give some answers, and even reconfigure
2528 unless (caller) {
2529     use Getopt::Long;
2530     use File::Spec::Functions;
2531     use File::Basename;
2532     use Pod::Usage;
2533
2534     my $here = dirname($0);
2535
2536     my $dump = undef;
2537     my $cmdline = undef;
2538     my $options = undef;
2539     my $target = undef;
2540     my $envvars = undef;
2541     my $makevars = undef;
2542     my $buildparams = undef;
2543     my $reconf = undef;
2544     my $verbose = undef;
2545     my $help = undef;
2546     my $man = undef;
2547     GetOptions('dump|d'                 => \$dump,
2548                'command-line|c'         => \$cmdline,
2549                'options|o'              => \$options,
2550                'target|t'               => \$target,
2551                'environment|e'          => \$envvars,
2552                'make-variables|m'       => \$makevars,
2553                'build-parameters|b'     => \$buildparams,
2554                'reconfigure|reconf|r'   => \$reconf,
2555                'verbose|v'              => \$verbose,
2556                'help'                   => \$help,
2557                'man'                    => \$man)
2558         or die "Errors in command line arguments\n";
2559
2560     unless ($dump || $cmdline || $options || $target || $envvars || $makevars
2561             || $buildparams || $reconf || $verbose || $help || $man) {
2562         print STDERR <<"_____";
2563 You must give at least one option.
2564 For more information, do '$0 --help'
2565 _____
2566         exit(2);
2567     }
2568
2569     if ($help) {
2570         pod2usage(-exitval => 0,
2571                   -verbose => 1);
2572     }
2573     if ($man) {
2574         pod2usage(-exitval => 0,
2575                   -verbose => 2);
2576     }
2577     if ($dump || $cmdline) {
2578         print "\nCommand line (with current working directory = $here):\n\n";
2579         print '    ',join(' ',
2580                           $config{PERL},
2581                           catfile($config{sourcedir}, 'Configure'),
2582                           @{$config{perlargv}}), "\n";
2583         print "\nPerl information:\n\n";
2584         print '    ',$config{perl_cmd},"\n";
2585         print '    ',$config{perl_version},' for ',$config{perl_archname},"\n";
2586     }
2587     if ($dump || $options) {
2588         my $longest = 0;
2589         my $longest2 = 0;
2590         foreach my $what (@disablables) {
2591             $longest = length($what) if $longest < length($what);
2592             $longest2 = length($disabled{$what})
2593                 if $disabled{$what} && $longest2 < length($disabled{$what});
2594         }
2595         print "\nEnabled features:\n\n";
2596         foreach my $what (@disablables) {
2597             print "    $what\n" unless $disabled{$what};
2598         }
2599         print "\nDisabled features:\n\n";
2600         foreach my $what (@disablables) {
2601             if ($disabled{$what}) {
2602                 print "    $what", ' ' x ($longest - length($what) + 1),
2603                     "[$disabled{$what}]", ' ' x ($longest2 - length($disabled{$what}) + 1);
2604                 print $disabled_info{$what}->{macro}
2605                     if $disabled_info{$what}->{macro};
2606                 print ' (skip ',
2607                     join(', ', @{$disabled_info{$what}->{skipped}}),
2608                     ')'
2609                     if $disabled_info{$what}->{skipped};
2610                 print "\n";
2611             }
2612         }
2613     }
2614     if ($dump || $target) {
2615         print "\nConfig target attributes:\n\n";
2616         foreach (sort keys %target) {
2617             next if $_ =~ m|^_| || $_ eq 'template';
2618             my $quotify = sub {
2619                 map { (my $x = $_) =~ s|([\\\$\@"])|\\$1|g; "\"$x\""} @_;
2620             };
2621             print '    ', $_, ' => ';
2622             if (ref($target{$_}) eq "ARRAY") {
2623                 print '[ ', join(', ', $quotify->(@{$target{$_}})), " ],\n";
2624             } else {
2625                 print $quotify->($target{$_}), ",\n"
2626             }
2627         }
2628     }
2629     if ($dump || $envvars) {
2630         print "\nRecorded environment:\n\n";
2631         foreach (sort keys %{$config{perlenv}}) {
2632             print '    ',$_,' = ',($config{perlenv}->{$_} || ''),"\n";
2633         }
2634     }
2635     if ($dump || $makevars) {
2636         print "\nMakevars:\n\n";
2637         foreach my $var (@makevars) {
2638             my $prefix = '';
2639             $prefix = $config{CROSS_COMPILE}
2640                 if grep { $var eq $_ } @user_crossable;
2641             $prefix //= '';
2642             print '    ',$var,' ' x (16 - length $var),'= ',
2643                 (ref $config{$var} eq 'ARRAY'
2644                  ? join(' ', @{$config{$var}})
2645                  : $prefix.$config{$var}),
2646                 "\n"
2647                 if defined $config{$var};
2648         }
2649
2650         my @buildfile = ($config{builddir}, $config{build_file});
2651         unshift @buildfile, $here
2652             unless file_name_is_absolute($config{builddir});
2653         my $buildfile = canonpath(catdir(@buildfile));
2654         print <<"_____";
2655
2656 NOTE: These variables only represent the configuration view.  The build file
2657 template may have processed these variables further, please have a look at the
2658 build file for more exact data:
2659     $buildfile
2660 _____
2661     }
2662     if ($dump || $buildparams) {
2663         my @buildfile = ($config{builddir}, $config{build_file});
2664         unshift @buildfile, $here
2665             unless file_name_is_absolute($config{builddir});
2666         print "\nbuild file:\n\n";
2667         print "    ", canonpath(catfile(@buildfile)),"\n";
2668
2669         print "\nbuild file templates:\n\n";
2670         foreach (@{$config{build_file_templates}}) {
2671             my @tmpl = ($_);
2672             unshift @tmpl, $here
2673                 unless file_name_is_absolute($config{sourcedir});
2674             print '    ',canonpath(catfile(@tmpl)),"\n";
2675         }
2676     }
2677     if ($reconf) {
2678         if ($verbose) {
2679             print 'Reconfiguring with: ', join(' ',@{$config{perlargv}}), "\n";
2680             foreach (sort keys %{$config{perlenv}}) {
2681                 print '    ',$_,' = ',($config{perlenv}->{$_} || ""),"\n";
2682             }
2683         }
2684
2685         chdir $here;
2686         exec $^X,catfile($config{sourcedir}, 'Configure'),'reconf';
2687     }
2688 }
2689
2690 1;
2691
2692 __END__
2693
2694 =head1 NAME
2695
2696 configdata.pm - configuration data for OpenSSL builds
2697
2698 =head1 SYNOPSIS
2699
2700 Interactive:
2701
2702   perl configdata.pm [options]
2703
2704 As data bank module:
2705
2706   use configdata;
2707
2708 =head1 DESCRIPTION
2709
2710 This module can be used in two modes, interactively and as a module containing
2711 all the data recorded by OpenSSL's Configure script.
2712
2713 When used interactively, simply run it as any perl script, with at least one
2714 option, and you will get the information you ask for.  See L</OPTIONS> below.
2715
2716 When loaded as a module, you get a few databanks with useful information to
2717 perform build related tasks.  The databanks are:
2718
2719     %config             Configured things.
2720     %target             The OpenSSL config target with all inheritances
2721                         resolved.
2722     %disabled           The features that are disabled.
2723     @disablables        The list of features that can be disabled.
2724     %withargs           All data given through --with-THING options.
2725     %unified_info       All information that was computed from the build.info
2726                         files.
2727
2728 =head1 OPTIONS
2729
2730 =over 4
2731
2732 =item B<--help>
2733
2734 Print a brief help message and exit.
2735
2736 =item B<--man>
2737
2738 Print the manual page and exit.
2739
2740 =item B<--dump> | B<-d>
2741
2742 Print all relevant configuration data.  This is equivalent to B<--command-line>
2743 B<--options> B<--target> B<--environment> B<--make-variables>
2744 B<--build-parameters>.
2745
2746 =item B<--command-line> | B<-c>
2747
2748 Print the current configuration command line.
2749
2750 =item B<--options> | B<-o>
2751
2752 Print the features, both enabled and disabled, and display defined macro and
2753 skipped directories where applicable.
2754
2755 =item B<--target> | B<-t>
2756
2757 Print the config attributes for this config target.
2758
2759 =item B<--environment> | B<-e>
2760
2761 Print the environment variables and their values at the time of configuration.
2762
2763 =item B<--make-variables> | B<-m>
2764
2765 Print the main make variables generated in the current configuration
2766
2767 =item B<--build-parameters> | B<-b>
2768
2769 Print the build parameters, i.e. build file and build file templates.
2770
2771 =item B<--reconfigure> | B<--reconf> | B<-r>
2772
2773 Redo the configuration.
2774
2775 =item B<--verbose> | B<-v>
2776
2777 Verbose output.
2778
2779 =back
2780
2781 =cut
2782
2783 EOF
2784 close(OUT);
2785 if ($builder_platform eq 'unix') {
2786     my $mode = (0755 & ~umask);
2787     chmod $mode, 'configdata.pm'
2788         or warn sprintf("WARNING: Couldn't change mode for 'configdata.pm' to 0%03o: %s\n",$mode,$!);
2789 }
2790
2791 my %builders = (
2792     unified => sub {
2793         print 'Creating ',$target{build_file},"\n";
2794         run_dofile(catfile($blddir, $target{build_file}),
2795                    @{$config{build_file_templates}});
2796     },
2797     );
2798
2799 $builders{$builder}->($builder_platform, @builder_opts);
2800
2801 $SIG{__DIE__} = $orig_death_handler;
2802
2803 print <<"EOF" if ($disabled{threads} eq "unavailable");
2804
2805 The library could not be configured for supporting multi-threaded
2806 applications as the compiler options required on this system are not known.
2807 See file INSTALL for details if you need multi-threading.
2808 EOF
2809
2810 print <<"EOF" if ($no_shared_warn);
2811
2812 The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
2813 platform, so we will pretend you gave the option 'no-pic', which also disables
2814 'shared' and 'dynamic-engine'.  If you know how to implement shared libraries
2815 or position independent code, please let us know (but please first make sure
2816 you have tried with a current version of OpenSSL).
2817 EOF
2818
2819 print <<"EOF";
2820
2821 **********************************************************************
2822 ***                                                                ***
2823 ***   OpenSSL has been successfully configured                     ***
2824 ***                                                                ***
2825 ***   If you encounter a problem while building, please open an    ***
2826 ***   issue on GitHub <https://github.com/openssl/openssl/issues>  ***
2827 ***   and include the output from the following command:           ***
2828 ***                                                                ***
2829 ***       perl configdata.pm --dump                                ***
2830 ***                                                                ***
2831 ***   (If you are new to OpenSSL, you might want to consult the    ***
2832 ***   'Troubleshooting' section in the INSTALL file first)         ***
2833 ***                                                                ***
2834 **********************************************************************
2835 EOF
2836
2837 exit(0);
2838
2839 ######################################################################
2840 #
2841 # Helpers and utility functions
2842 #
2843
2844 # Death handler, to print a helpful message in case of failure #######
2845 #
2846 sub death_handler {
2847     die @_ if $^S;              # To prevent the added message in eval blocks
2848     my $build_file = $target{build_file} // "build file";
2849     my @message = ( <<"_____", @_ );
2850
2851 Failure!  $build_file wasn't produced.
2852 Please read INSTALL and associated NOTES files.  You may also have to look over
2853 your available compiler tool chain or change your configuration.
2854
2855 _____
2856
2857     # Dying is terminal, so it's ok to reset the signal handler here.
2858     $SIG{__DIE__} = $orig_death_handler;
2859     die @message;
2860 }
2861
2862 # Configuration file reading #########################################
2863
2864 # Note: All of the helper functions are for lazy evaluation.  They all
2865 # return a CODE ref, which will return the intended value when evaluated.
2866 # Thus, whenever there's mention of a returned value, it's about that
2867 # intended value.
2868
2869 # Helper function to implement conditional inheritance depending on the
2870 # value of $disabled{asm}.  Used in inherit_from values as follows:
2871 #
2872 #      inherit_from => [ "template", asm("asm_tmpl") ]
2873 #
2874 sub asm {
2875     my @x = @_;
2876     sub {
2877         $disabled{asm} ? () : @x;
2878     }
2879 }
2880
2881 # Helper function to implement conditional value variants, with a default
2882 # plus additional values based on the value of $config{build_type}.
2883 # Arguments are given in hash table form:
2884 #
2885 #       picker(default => "Basic string: ",
2886 #              debug   => "debug",
2887 #              release => "release")
2888 #
2889 # When configuring with --debug, the resulting string will be
2890 # "Basic string: debug", and when not, it will be "Basic string: release"
2891 #
2892 # This can be used to create variants of sets of flags according to the
2893 # build type:
2894 #
2895 #       cflags => picker(default => "-Wall",
2896 #                        debug   => "-g -O0",
2897 #                        release => "-O3")
2898 #
2899 sub picker {
2900     my %opts = @_;
2901     return sub { add($opts{default} || (),
2902                      $opts{$config{build_type}} || ())->(); }
2903 }
2904
2905 # Helper function to combine several values of different types into one.
2906 # This is useful if you want to combine a string with the result of a
2907 # lazy function, such as:
2908 #
2909 #       cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
2910 #
2911 sub combine {
2912     my @stuff = @_;
2913     return sub { add(@stuff)->(); }
2914 }
2915
2916 # Helper function to implement conditional values depending on the value
2917 # of $disabled{threads}.  Can be used as follows:
2918 #
2919 #       cflags => combine("-Wall", threads("-pthread"))
2920 #
2921 sub threads {
2922     my @flags = @_;
2923     return sub { add($disabled{threads} ? () : @flags)->(); }
2924 }
2925
2926 sub shared {
2927     my @flags = @_;
2928     return sub { add($disabled{shared} ? () : @flags)->(); }
2929 }
2930
2931 our $add_called = 0;
2932 # Helper function to implement adding values to already existing configuration
2933 # values.  It handles elements that are ARRAYs, CODEs and scalars
2934 sub _add {
2935     my $separator = shift;
2936
2937     # If there's any ARRAY in the collection of values OR the separator
2938     # is undef, we will return an ARRAY of combined values, otherwise a
2939     # string of joined values with $separator as the separator.
2940     my $found_array = !defined($separator);
2941
2942     my @values =
2943         map {
2944             my $res = $_;
2945             while (ref($res) eq "CODE") {
2946                 $res = $res->();
2947             }
2948             if (defined($res)) {
2949                 if (ref($res) eq "ARRAY") {
2950                     $found_array = 1;
2951                     @$res;
2952                 } else {
2953                     $res;
2954                 }
2955             } else {
2956                 ();
2957             }
2958     } (@_);
2959
2960     $add_called = 1;
2961
2962     if ($found_array) {
2963         [ @values ];
2964     } else {
2965         join($separator, grep { defined($_) && $_ ne "" } @values);
2966     }
2967 }
2968 sub add_before {
2969     my $separator = " ";
2970     if (ref($_[$#_]) eq "HASH") {
2971         my $opts = pop;
2972         $separator = $opts->{separator};
2973     }
2974     my @x = @_;
2975     sub { _add($separator, @x, @_) };
2976 }
2977 sub add {
2978     my $separator = " ";
2979     if (ref($_[$#_]) eq "HASH") {
2980         my $opts = pop;
2981         $separator = $opts->{separator};
2982     }
2983     my @x = @_;
2984     sub { _add($separator, @_, @x) };
2985 }
2986
2987 sub read_eval_file {
2988     my $fname = shift;
2989     my $content;
2990     my @result;
2991
2992     open F, "< $fname" or die "Can't open '$fname': $!\n";
2993     {
2994         undef local $/;
2995         $content = <F>;
2996     }
2997     close F;
2998     {
2999         local $@;
3000
3001         @result = ( eval $content );
3002         warn $@ if $@;
3003     }
3004     return wantarray ? @result : $result[0];
3005 }
3006
3007 # configuration reader, evaluates the input file as a perl script and expects
3008 # it to fill %targets with target configurations.  Those are then added to
3009 # %table.
3010 sub read_config {
3011     my $fname = shift;
3012     my %targets;
3013
3014     {
3015         # Protect certain tables from tampering
3016         local %table = ();
3017
3018         %targets = read_eval_file($fname);
3019     }
3020     my %preexisting = ();
3021     foreach (sort keys %targets) {
3022         $preexisting{$_} = 1 if $table{$_};
3023     }
3024     die <<"EOF",
3025 The following config targets from $fname
3026 shadow pre-existing config targets with the same name:
3027 EOF
3028         map { "  $_\n" } sort keys %preexisting
3029         if %preexisting;
3030
3031
3032     # For each target, check that it's configured with a hash table.
3033     foreach (keys %targets) {
3034         if (ref($targets{$_}) ne "HASH") {
3035             if (ref($targets{$_}) eq "") {
3036                 warn "Deprecated target configuration for $_, ignoring...\n";
3037             } else {
3038                 warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
3039             }
3040             delete $targets{$_};
3041         } else {
3042             $targets{$_}->{_conf_fname_int} = add([ $fname ]);
3043         }
3044     }
3045
3046     %table = (%table, %targets);
3047
3048 }
3049
3050 # configuration resolver.  Will only resolve all the lazy evaluation
3051 # codeblocks for the chosen target and all those it inherits from,
3052 # recursively
3053 sub resolve_config {
3054     my $target = shift;
3055     my @breadcrumbs = @_;
3056
3057 #    my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
3058
3059     if (grep { $_ eq $target } @breadcrumbs) {
3060         die "inherit_from loop!  target backtrace:\n  "
3061             ,$target,"\n  ",join("\n  ", @breadcrumbs),"\n";
3062     }
3063
3064     if (!defined($table{$target})) {
3065         warn "Warning! target $target doesn't exist!\n";
3066         return ();
3067     }
3068     # Recurse through all inheritances.  They will be resolved on the
3069     # fly, so when this operation is done, they will all just be a
3070     # bunch of attributes with string values.
3071     # What we get here, though, are keys with references to lists of
3072     # the combined values of them all.  We will deal with lists after
3073     # this stage is done.
3074     my %combined_inheritance = ();
3075     if ($table{$target}->{inherit_from}) {
3076         my @inherit_from =
3077             map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
3078         foreach (@inherit_from) {
3079             my %inherited_config = resolve_config($_, $target, @breadcrumbs);
3080
3081             # 'template' is a marker that's considered private to
3082             # the config that had it.
3083             delete $inherited_config{template};
3084
3085             foreach (keys %inherited_config) {
3086                 if (!$combined_inheritance{$_}) {
3087                     $combined_inheritance{$_} = [];
3088                 }
3089                 push @{$combined_inheritance{$_}}, $inherited_config{$_};
3090             }
3091         }
3092     }
3093
3094     # We won't need inherit_from in this target any more, since we've
3095     # resolved all the inheritances that lead to this
3096     delete $table{$target}->{inherit_from};
3097
3098     # Now is the time to deal with those lists.  Here's the place to
3099     # decide what shall be done with those lists, all based on the
3100     # values of the target we're currently dealing with.
3101     # - If a value is a coderef, it will be executed with the list of
3102     #   inherited values as arguments.
3103     # - If the corresponding key doesn't have a value at all or is the
3104     #   empty string, the inherited value list will be run through the
3105     #   default combiner (below), and the result becomes this target's
3106     #   value.
3107     # - Otherwise, this target's value is assumed to be a string that
3108     #   will simply override the inherited list of values.
3109     my $default_combiner = add();
3110
3111     my %all_keys =
3112         map { $_ => 1 } (keys %combined_inheritance,
3113                          keys %{$table{$target}});
3114
3115     sub process_values {
3116         my $object    = shift;
3117         my $inherited = shift;  # Always a [ list ]
3118         my $target    = shift;
3119         my $entry     = shift;
3120
3121         $add_called = 0;
3122
3123         while(ref($object) eq "CODE") {
3124             $object = $object->(@$inherited);
3125         }
3126         if (!defined($object)) {
3127             return ();
3128         }
3129         elsif (ref($object) eq "ARRAY") {
3130             local $add_called;  # To make sure recursive calls don't affect it
3131             return [ map { process_values($_, $inherited, $target, $entry) }
3132                      @$object ];
3133         } elsif (ref($object) eq "") {
3134             return $object;
3135         } else {
3136             die "cannot handle reference type ",ref($object)
3137                 ," found in target ",$target," -> ",$entry,"\n";
3138         }
3139     }
3140
3141     foreach (sort keys %all_keys) {
3142         my $previous = $combined_inheritance{$_};
3143
3144         # Current target doesn't have a value for the current key?
3145         # Assign it the default combiner, the rest of this loop body
3146         # will handle it just like any other coderef.
3147         if (!exists $table{$target}->{$_}) {
3148             $table{$target}->{$_} = $default_combiner;
3149         }
3150
3151         $table{$target}->{$_} = process_values($table{$target}->{$_},
3152                                                $combined_inheritance{$_},
3153                                                $target, $_);
3154         unless(defined($table{$target}->{$_})) {
3155             delete $table{$target}->{$_};
3156         }
3157 #        if ($extra_checks &&
3158 #            $previous && !($add_called ||  $previous ~~ $table{$target}->{$_})) {
3159 #            warn "$_ got replaced in $target\n";
3160 #        }
3161     }
3162
3163     # Finally done, return the result.
3164     return %{$table{$target}};
3165 }
3166
3167 sub usage
3168         {
3169         print STDERR $usage;
3170         print STDERR "\npick os/compiler from:\n";
3171         my $j=0;
3172         my $i;
3173         my $k=0;
3174         foreach $i (sort keys %table)
3175                 {
3176                 next if $table{$i}->{template};
3177                 next if $i =~ /^debug/;
3178                 $k += length($i) + 1;
3179                 if ($k > 78)
3180                         {
3181                         print STDERR "\n";
3182                         $k=length($i);
3183                         }
3184                 print STDERR $i . " ";
3185                 }
3186         foreach $i (sort keys %table)
3187                 {
3188                 next if $table{$i}->{template};
3189                 next if $i !~ /^debug/;
3190                 $k += length($i) + 1;
3191                 if ($k > 78)
3192                         {
3193                         print STDERR "\n";
3194                         $k=length($i);
3195                         }
3196                 print STDERR $i . " ";
3197                 }
3198         print STDERR "\n\nNOTE: If in doubt, on Unix-ish systems use './config'.\n";
3199         exit(1);
3200         }
3201
3202 sub run_dofile
3203 {
3204     my $out = shift;
3205     my @templates = @_;
3206
3207     unlink $out || warn "Can't remove $out, $!"
3208         if -f $out;
3209     foreach (@templates) {
3210         die "Can't open $_, $!" unless -f $_;
3211     }
3212     my $perlcmd = (quotify("maybeshell", $config{PERL}))[0];
3213     my $cmd = "$perlcmd \"-I.\" \"-Mconfigdata\" \"$dofile\" -o\"Configure\" \"".join("\" \"",@templates)."\" > \"$out.new\"";
3214     #print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
3215     system($cmd);
3216     exit 1 if $? != 0;
3217     rename("$out.new", $out) || die "Can't rename $out.new, $!";
3218 }
3219
3220 sub compiler_predefined {
3221     state %predefined;
3222     my $cc = shift;
3223
3224     return () if $^O eq 'VMS';
3225
3226     die 'compiler_predefined called without a compiler command'
3227         unless $cc;
3228
3229     if (! $predefined{$cc}) {
3230
3231         $predefined{$cc} = {};
3232
3233         # collect compiler pre-defines from gcc or gcc-alike...
3234         open(PIPE, "$cc -dM -E -x c /dev/null 2>&1 |");
3235         while (my $l = <PIPE>) {
3236             $l =~ m/^#define\s+(\w+(?:\(\w+\))?)(?:\s+(.+))?/ or last;
3237             $predefined{$cc}->{$1} = $2 // '';
3238         }
3239         close(PIPE);
3240     }
3241
3242     return %{$predefined{$cc}};
3243 }
3244
3245 sub which
3246 {
3247     my ($name)=@_;
3248
3249     if (eval { require IPC::Cmd; 1; }) {
3250         IPC::Cmd->import();
3251         return scalar IPC::Cmd::can_run($name);
3252     } else {
3253         # if there is $directories component in splitpath,
3254         # then it's not something to test with $PATH...
3255         return $name if (File::Spec->splitpath($name))[1];
3256
3257         foreach (File::Spec->path()) {
3258             my $fullpath = catfile($_, "$name$target{exe_extension}");
3259             if (-f $fullpath and -x $fullpath) {
3260                 return $fullpath;
3261             }
3262         }
3263     }
3264 }
3265
3266 sub env
3267 {
3268     my $name = shift;
3269     my %opts = @_;
3270
3271     unless ($opts{cacheonly}) {
3272         # Note that if $ENV{$name} doesn't exist or is undefined,
3273         # $config{perlenv}->{$name} will be created with the value
3274         # undef.  This is intentional.
3275
3276         $config{perlenv}->{$name} = $ENV{$name}
3277             if ! exists $config{perlenv}->{$name};
3278     }
3279     return $config{perlenv}->{$name};
3280 }
3281
3282 # Configuration printer ##############################################
3283
3284 sub print_table_entry
3285 {
3286     local $now_printing = shift;
3287     my %target = resolve_config($now_printing);
3288     my $type = shift;
3289
3290     # Don't print the templates
3291     return if $target{template};
3292
3293     my @sequence = (
3294         "sys_id",
3295         "cpp",
3296         "cppflags",
3297         "defines",
3298         "includes",
3299         "cc",
3300         "cflags",
3301         "unistd",
3302         "ld",
3303         "lflags",
3304         "loutflag",
3305         "ex_libs",
3306         "bn_ops",
3307         "apps_aux_src",
3308         "cpuid_asm_src",
3309         "uplink_aux_src",
3310         "bn_asm_src",
3311         "ec_asm_src",
3312         "des_asm_src",
3313         "aes_asm_src",
3314         "bf_asm_src",
3315         "md5_asm_src",
3316         "cast_asm_src",
3317         "sha1_asm_src",
3318         "rc4_asm_src",
3319         "rmd160_asm_src",
3320         "rc5_asm_src",
3321         "wp_asm_src",
3322         "cmll_asm_src",
3323         "modes_asm_src",
3324         "padlock_asm_src",
3325         "chacha_asm_src",
3326         "poly1035_asm_src",
3327         "thread_scheme",
3328         "perlasm_scheme",
3329         "dso_scheme",
3330         "shared_target",
3331         "shared_cflag",
3332         "shared_defines",
3333         "shared_ldflag",
3334         "shared_rcflag",
3335         "shared_extension",
3336         "dso_extension",
3337         "obj_extension",
3338         "exe_extension",
3339         "ranlib",
3340         "ar",
3341         "arflags",
3342         "aroutflag",
3343         "rc",
3344         "rcflags",
3345         "rcoutflag",
3346         "mt",
3347         "mtflags",
3348         "mtinflag",
3349         "mtoutflag",
3350         "multilib",
3351         "build_scheme",
3352         );
3353
3354     if ($type eq "TABLE") {
3355         print "\n";
3356         print "*** $now_printing\n";
3357         foreach (@sequence) {
3358             if (ref($target{$_}) eq "ARRAY") {
3359                 printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
3360             } else {
3361                 printf "\$%-12s = %s\n", $_, $target{$_};
3362             }
3363         }
3364     } elsif ($type eq "HASH") {
3365         my $largest =
3366             length((sort { length($a) <=> length($b) } @sequence)[-1]);
3367         print "    '$now_printing' => {\n";
3368         foreach (@sequence) {
3369             if ($target{$_}) {
3370                 if (ref($target{$_}) eq "ARRAY") {
3371                     print "      '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
3372                 } else {
3373                     print "      '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
3374                 }
3375             }
3376         }
3377         print "    },\n";
3378     }
3379 }
3380
3381 # Utility routines ###################################################
3382
3383 # On VMS, if the given file is a logical name, File::Spec::Functions
3384 # will consider it an absolute path.  There are cases when we want a
3385 # purely syntactic check without checking the environment.
3386 sub isabsolute {
3387     my $file = shift;
3388
3389     # On non-platforms, we just use file_name_is_absolute().
3390     return file_name_is_absolute($file) unless $^O eq "VMS";
3391
3392     # If the file spec includes a device or a directory spec,
3393     # file_name_is_absolute() is perfectly safe.
3394     return file_name_is_absolute($file) if $file =~ m|[:\[]|;
3395
3396     # Here, we know the given file spec isn't absolute
3397     return 0;
3398 }
3399
3400 # Makes a directory absolute and cleans out /../ in paths like foo/../bar
3401 # On some platforms, this uses rel2abs(), while on others, realpath() is used.
3402 # realpath() requires that at least all path components except the last is an
3403 # existing directory.  On VMS, the last component of the directory spec must
3404 # exist.
3405 sub absolutedir {
3406     my $dir = shift;
3407
3408     # realpath() is quite buggy on VMS.  It uses LIB$FID_TO_NAME, which
3409     # will return the volume name for the device, no matter what.  Also,
3410     # it will return an incorrect directory spec if the argument is a
3411     # directory that doesn't exist.
3412     if ($^O eq "VMS") {
3413         return rel2abs($dir);
3414     }
3415
3416     # We use realpath() on Unix, since no other will properly clean out
3417     # a directory spec.
3418     use Cwd qw/realpath/;
3419
3420     return realpath($dir);
3421 }
3422
3423 sub quotify {
3424     my %processors = (
3425         perl    => sub { my $x = shift;
3426                          $x =~ s/([\\\$\@"])/\\$1/g;
3427                          return '"'.$x.'"'; },
3428         maybeshell => sub { my $x = shift;
3429                             (my $y = $x) =~ s/([\\\"])/\\$1/g;
3430                             if ($x ne $y || $x =~ m|\s|) {
3431                                 return '"'.$y.'"';
3432                             } else {
3433                                 return $x;
3434                             }
3435                         },
3436         );
3437     my $for = shift;
3438     my $processor =
3439         defined($processors{$for}) ? $processors{$for} : sub { shift; };
3440
3441     return map { $processor->($_); } @_;
3442 }
3443
3444 # collect_from_file($filename, $line_concat_cond_re, $line_concat)
3445 # $filename is a file name to read from
3446 # $line_concat_cond_re is a regexp detecting a line continuation ending
3447 # $line_concat is a CODEref that takes care of concatenating two lines
3448 sub collect_from_file {
3449     my $filename = shift;
3450     my $line_concat_cond_re = shift;
3451     my $line_concat = shift;
3452
3453     open my $fh, $filename || die "unable to read $filename: $!\n";
3454     return sub {
3455         my $saved_line = "";
3456         $_ = "";
3457         while (<$fh>) {
3458             s|\R$||;
3459             if (defined $line_concat) {
3460                 $_ = $line_concat->($saved_line, $_);
3461                 $saved_line = "";
3462             }
3463             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3464                 $saved_line = $_;
3465                 next;
3466             }
3467             return $_;
3468         }
3469         die "$filename ending with continuation line\n" if $_;
3470         close $fh;
3471         return undef;
3472     }
3473 }
3474
3475 # collect_from_array($array, $line_concat_cond_re, $line_concat)
3476 # $array is an ARRAYref of lines
3477 # $line_concat_cond_re is a regexp detecting a line continuation ending
3478 # $line_concat is a CODEref that takes care of concatenating two lines
3479 sub collect_from_array {
3480     my $array = shift;
3481     my $line_concat_cond_re = shift;
3482     my $line_concat = shift;
3483     my @array = (@$array);
3484
3485     return sub {
3486         my $saved_line = "";
3487         $_ = "";
3488         while (defined($_ = shift @array)) {
3489             s|\R$||;
3490             if (defined $line_concat) {
3491                 $_ = $line_concat->($saved_line, $_);
3492                 $saved_line = "";
3493             }
3494             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3495                 $saved_line = $_;
3496                 next;
3497             }
3498             return $_;
3499         }
3500         die "input text ending with continuation line\n" if $_;
3501         return undef;
3502     }
3503 }
3504
3505 # collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
3506 # $lineiterator is a CODEref that delivers one line at a time.
3507 # All following arguments are regex/CODEref pairs, where the regexp detects a
3508 # line and the CODEref does something with the result of the regexp.
3509 sub collect_information {
3510     my $lineiterator = shift;
3511     my %collectors = @_;
3512
3513     while(defined($_ = $lineiterator->())) {
3514         s|\R$||;
3515         my $found = 0;
3516         if ($collectors{"BEFORE"}) {
3517             $collectors{"BEFORE"}->($_);
3518         }
3519         foreach my $re (keys %collectors) {
3520             if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
3521                 $collectors{$re}->($lineiterator);
3522                 $found = 1;
3523             };
3524         }
3525         if ($collectors{"OTHERWISE"}) {
3526             $collectors{"OTHERWISE"}->($lineiterator, $_)
3527                 unless $found || !defined $collectors{"OTHERWISE"};
3528         }
3529         if ($collectors{"AFTER"}) {
3530             $collectors{"AFTER"}->($_);
3531         }
3532     }
3533 }
3534
3535 # tokenize($line)
3536 # $line is a line of text to split up into tokens
3537 # returns a list of tokens
3538 #
3539 # Tokens are divided by spaces.  If the tokens include spaces, they
3540 # have to be quoted with single or double quotes.  Double quotes
3541 # inside a double quoted token must be escaped.  Escaping is done
3542 # with backslash.
3543 # Basically, the same quoting rules apply for " and ' as in any
3544 # Unix shell.
3545 sub tokenize {
3546     my $line = my $debug_line = shift;
3547     my @result = ();
3548
3549     while ($line =~ s|^\s+||, $line ne "") {
3550         my $token = "";
3551         while ($line ne "" && $line !~ m|^\s|) {
3552             if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
3553                 $token .= $1;
3554                 $line = $';
3555             } elsif ($line =~ m/^'([^']*)'/) {
3556                 $token .= $1;
3557                 $line = $';
3558             } elsif ($line =~ m/^(\S+)/) {
3559                 $token .= $1;
3560                 $line = $';
3561             }
3562         }
3563         push @result, $token;
3564     }
3565
3566     if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
3567         print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
3568         print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
3569     }
3570     return @result;
3571 }