Configure

   1 #! /usr/bin/env perl
   2 # -*- mode: perl; -*-
   3 # Copyright 2016 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 require 5.10.0;
  13 use strict;
  14 use Config;
  15 use File::Basename;
  16 use File::Spec::Functions qw/:DEFAULT abs2rel rel2abs/;
  17 use File::Path qw/mkpath/;
  18 use if $^O ne "VMS", 'File::Glob' => qw/glob/;
  19
  20 # see INSTALL for instructions.
  21
  22 my $usage="Usage: Configure [no-<cipher> ...] [enable-<cipher> ...] [-Dxxx] [-lxxx] [-Lxxx] [-fxxx] [-Kxxx] [no-hw-xxx|no-hw] [[no-]threads] [[no-]shared] [[no-]zlib|zlib-dynamic] [no-asm] [no-dso] [no-egd] [sctp] [386] [--prefix=DIR] [--openssldir=OPENSSLDIR] [--with-xxx[=vvv]] [--config=FILE] os/compiler[:flags]\n";
  23
  24 # Options:
  25 #
  26 # --config      add the given configuration file, which will be read after
  27 #               any "Configurations*" files that are found in the same
  28 #               directory as this script.
  29 # --prefix      prefix for the OpenSSL installation, which includes the
  30 #               directories bin, lib, include, share/man, share/doc/openssl
  31 #               This becomes the value of INSTALLTOP in Makefile
  32 #               (Default: /usr/local)
  33 # --openssldir  OpenSSL data area, such as openssl.cnf, certificates and keys.
  34 #               If it's a relative directory, it will be added on the directory
  35 #               given with --prefix.
  36 #               This becomes the value of OPENSSLDIR in Makefile and in C.
  37 #               (Default: PREFIX/ssl)
  38 #
  39 # --cross-compile-prefix Add specified prefix to binutils components.
  40 #
  41 # --api         One of 0.9.8, 1.0.0 or 1.1.0.  Do not compile support for
  42 #               interfaces deprecated as of the specified OpenSSL version.
  43 #
  44 # no-hw-xxx     do not compile support for specific crypto hardware.
  45 #               Generic OpenSSL-style methods relating to this support
  46 #               are always compiled but return NULL if the hardware
  47 #               support isn't compiled.
  48 # no-hw         do not compile support for any crypto hardware.
  49 # [no-]threads  [don't] try to create a library that is suitable for
  50 #               multithreaded applications (default is "threads" if we
  51 #               know how to do it)
  52 # [no-]shared   [don't] try to create shared libraries when supported.
  53 # [no-]pic      [don't] try to build position independent code when supported.
  54 #               If disabled, it also disables shared and dynamic-engine.
  55 # no-asm        do not use assembler
  56 # no-dso        do not compile in any native shared-library methods. This
  57 #               will ensure that all methods just return NULL.
  58 # no-egd        do not compile support for the entropy-gathering daemon APIs
  59 # [no-]zlib     [don't] compile support for zlib compression.
  60 # zlib-dynamic  Like "zlib", but the zlib library is expected to be a shared
  61 #               library and will be loaded in run-time by the OpenSSL library.
  62 # sctp          include SCTP support
  63 # 386           generate 80386 code
  64 # enable-weak-ssl-ciphers
  65 #               Enable weak ciphers that are disabled by default. This currently
  66 #               only includes RC4 based ciphers.
  67 # no-sse2       disables IA-32 SSE2 code, above option implies no-sse2
  68 # no-<cipher>   build without specified algorithm (rsa, idea, rc5, ...)
  69 # -<xxx> +<xxx> compiler options are passed through
  70 # -static       while -static is also a pass-through compiler option (and
  71 #               as such is limited to environments where it's actually
  72 #               meaningful), it triggers a number configuration options,
  73 #               namely no-dso, no-pic, no-shared and no-threads. It is
  74 #               argued that the only reason to produce statically linked
  75 #               binaries (and in context it means executables linked with
  76 #               -static flag, and not just executables linked with static
  77 #               libcrypto.a) is to eliminate dependency on specific run-time,
  78 #               a.k.a. libc version. The mentioned config options are meant
  79 #               to achieve just that. Unfortunately on Linux it's impossible
  80 #               to eliminate the dependency completely for openssl executable
  81 #               because of getaddrinfo and gethostbyname calls, which can
  82 #               invoke dynamically loadable library facility anyway to meet
  83 #               the lookup requests. For this reason on Linux statically
  84 #               linked openssl executable has rather debugging value than
  85 #               production quality.
  86 #
  87 # DEBUG_SAFESTACK use type-safe stacks to enforce type-safety on stack items
  88 #               provided to stack calls. Generates unique stack functions for
  89 #               each possible stack type.
  90 # BN_LLONG      use the type 'long long' in crypto/bn/bn.h
  91 # RC4_CHAR      use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
  92 # Following are set automatically by this script
  93 #
  94 # MD5_ASM       use some extra md5 assembler,
  95 # SHA1_ASM      use some extra sha1 assembler, must define L_ENDIAN for x86
  96 # RMD160_ASM    use some extra ripemd160 assembler,
  97 # SHA256_ASM    sha256_block is implemented in assembler
  98 # SHA512_ASM    sha512_block is implemented in assembler
  99 # AES_ASM       AES_[en|de]crypt is implemented in assembler
 100
 101 # Minimum warning options... any contributions to OpenSSL should at least get
 102 # past these.
 103
 104 # DEBUG_UNUSED enables __owur (warn unused result) checks.
 105 my $gcc_devteam_warn = "-DDEBUG_UNUSED"
 106         # -DPEDANTIC complements -pedantic and is meant to mask code that
 107         # is not strictly standard-compliant and/or implementation-specific,
 108         # e.g. inline assembly, disregards to alignment requirements, such
 109         # that -pedantic would complain about. Incidentally -DPEDANTIC has
 110         # to be used even in sanitized builds, because sanitizer too is
 111         # supposed to and does take notice of non-standard behaviour. Then
 112         # -pedantic with pre-C9x compiler would also complain about 'long
 113         # long' not being supported. As 64-bit algorithms are common now,
 114         # it grew impossible to resolve this without sizeable additional
 115         # code, so we just tell compiler to be pedantic about everything
 116         # but 'long long' type.
 117         . " -Wswitch"
 118         . " -DPEDANTIC -pedantic -Wno-long-long"
 119         . " -Wall"
 120         . " -Wsign-compare"
 121         . " -Wmissing-prototypes"
 122         . " -Wshadow"
 123         . " -Wformat"
 124         . " -Wtype-limits"
 125         . " -Werror"
 126         ;
 127
 128 # These are used in addition to $gcc_devteam_warn when the compiler is clang.
 129 # TODO(openssl-team): fix problems and investigate if (at least) the
 130 # following warnings can also be enabled:
 131 #       -Wcast-align
 132 #       -Wunreachable-code
 133 #       -Wlanguage-extension-token -- no, we use asm()
 134 #       -Wunused-macros -- no, too tricky for BN and _XOPEN_SOURCE etc
 135 #       -Wextended-offsetof -- no, needed in CMS ASN1 code
 136 my $clang_devteam_warn = ""
 137         . " -Qunused-arguments"
 138         . " -Wextra"
 139         . " -Wswitch -Wswitch-default"
 140         . " -Wno-unused-parameter"
 141         . " -Wno-missing-field-initializers"
 142         . " -Wno-language-extension-token"
 143         . " -Wno-extended-offsetof"
 144         . " -Wconditional-uninitialized"
 145         . " -Wincompatible-pointer-types-discards-qualifiers"
 146         . " -Wmissing-variable-declarations"
 147         ;
 148
 149 # This adds backtrace information to the memory leak info.  Is only used
 150 # when crypto-mdebug-backtrace is enabled.
 151 my $memleak_devteam_backtrace = "-rdynamic";
 152
 153 my $strict_warnings = 0;
 154
 155 # As for $BSDthreads. Idea is to maintain "collective" set of flags,
 156 # which would cover all BSD flavors. -pthread applies to them all,
 157 # but is treated differently. OpenBSD expands is as -D_POSIX_THREAD
 158 # -lc_r, which is sufficient. FreeBSD 4.x expands it as -lc_r,
 159 # which has to be accompanied by explicit -D_THREAD_SAFE and
 160 # sometimes -D_REENTRANT. FreeBSD 5.x expands it as -lc_r, which
 161 # seems to be sufficient?
 162 our $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";
 163
 164 #
 165 # API compatibility name to version number mapping.
 166 #
 167 my $maxapi = "1.1.0";           # API for "no-deprecated" builds
 168 my $apitable = {
 169     "1.1.0" => "0x10100000L",
 170     "1.0.0" => "0x10000000L",
 171     "0.9.8" => "0x00908000L",
 172 };
 173
 174 our %table = ();
 175 our %config = ();
 176 our %withargs = ();
 177
 178 # Forward declarations ###############################################
 179
 180 # read_config(filename)
 181 #
 182 # Reads a configuration file and populates %table with the contents
 183 # (which the configuration file places in %targets).
 184 sub read_config;
 185
 186 # resolve_config(target)
 187 #
 188 # Resolves all the late evaluations, inheritances and so on for the
 189 # chosen target and any target it inherits from.
 190 sub resolve_config;
 191
 192
 193 # Information collection #############################################
 194
 195 # Unified build supports separate build dir
 196 my $srcdir = catdir(absolutedir(dirname($0))); # catdir ensures local syntax
 197 my $blddir = catdir(absolutedir("."));         # catdir ensures local syntax
 198 my $dofile = abs2rel(catfile($srcdir, "util/dofile.pl"));
 199
 200 my $local_config_envname = 'OPENSSL_LOCAL_CONFIG_DIR';
 201
 202 $config{sourcedir} = abs2rel($srcdir);
 203 $config{builddir} = abs2rel($blddir);
 204
 205 # Collect reconfiguration information if needed
 206 my @argvcopy=@ARGV;
 207
 208 if (grep /^reconf(igure)?$/, @argvcopy) {
 209     if (-f "./configdata.pm") {
 210         my $file = "./configdata.pm";
 211         unless (my $return = do $file) {
 212             die "couldn't parse $file: $@" if $@;
 213             die "couldn't do $file: $!"    unless defined $return;
 214             die "couldn't run $file"       unless $return;
 215         }
 216
 217         @argvcopy = defined($configdata::config{perlargv}) ?
 218             @{$configdata::config{perlargv}} : ();
 219         die "Incorrect data to reconfigure, please do a normal configuration\n"
 220             if (grep(/^reconf/,@argvcopy));
 221         $ENV{CROSS_COMPILE} = $configdata::config{cross_compile_prefix}
 222             if defined($configdata::config{cross_compile_prefix});
 223         $ENV{CC} = $configdata::config{cc}
 224             if defined($configdata::config{cc});
 225         $ENV{CXX} = $configdata::config{cxx}
 226             if defined($configdata::config{cxx});
 227         $ENV{BUILDFILE} = $configdata::config{build_file}
 228             if defined($configdata::config{build_file});
 229         $ENV{$local_config_envname} = $configdata::config{local_config_dir}
 230             if defined($configdata::config{local_config_dir});
 231
 232         print "Reconfiguring with: ", join(" ",@argvcopy), "\n";
 233         print "    CROSS_COMPILE = ",$ENV{CROSS_COMPILE},"\n"
 234             if $ENV{CROSS_COMPILE};
 235         print "    CC = ",$ENV{CC},"\n" if $ENV{CC};
 236         print "    CXX = ",$ENV{CXX},"\n" if $ENV{CXX};
 237         print "    BUILDFILE = ",$ENV{BUILDFILE},"\n" if $ENV{BUILDFILE};
 238         print "    $local_config_envname = ",$ENV{$local_config_envname},"\n"
 239             if $ENV{$local_config_envname};
 240     } else {
 241         die "Insufficient data to reconfigure, please do a normal configuration\n";
 242     }
 243 }
 244
 245 $config{perlargv} = [ @argvcopy ];
 246
 247 # Collect version numbers
 248 $config{version} = "unknown";
 249 $config{version_num} = "unknown";
 250 $config{shlib_version_number} = "unknown";
 251 $config{shlib_version_history} = "unknown";
 252
 253 collect_information(
 254     collect_from_file(catfile($srcdir,'include/openssl/opensslv.h')),
 255     qr/OPENSSL.VERSION.TEXT.*OpenSSL (\S+) / => sub { $config{version} = $1; },
 256     qr/OPENSSL.VERSION.NUMBER.*(0x\S+)/      => sub { $config{version_num}=$1 },
 257     qr/SHLIB_VERSION_NUMBER *"([^"]+)"/      => sub { $config{shlib_version_number}=$1 },
 258     qr/SHLIB_VERSION_HISTORY *"([^"]*)"/     => sub { $config{shlib_version_history}=$1 }
 259     );
 260 if ($config{shlib_version_history} ne "") { $config{shlib_version_history} .= ":"; }
 261
 262 ($config{major}, $config{minor})
 263     = ($config{version} =~ /^([0-9]+)\.([0-9\.]+)/);
 264 ($config{shlib_major}, $config{shlib_minor})
 265     = ($config{shlib_version_number} =~ /^([0-9]+)\.([0-9\.]+)/);
 266 die "erroneous version information in opensslv.h: ",
 267     "$config{major}, $config{minor}, $config{shlib_major}, $config{shlib_minor}\n"
 268     if ($config{major} eq "" || $config{minor} eq ""
 269         || $config{shlib_major} eq "" ||  $config{shlib_minor} eq "");
 270
 271 # Collect target configurations
 272
 273 my $pattern = catfile(dirname($0), "Configurations", "*.conf");
 274 foreach (sort glob($pattern)) {
 275     &read_config($_);
 276 }
 277
 278 if (defined $ENV{$local_config_envname}) {
 279     if ($^O eq 'VMS') {
 280         # VMS environment variables are logical names,
 281         # which can be used as is
 282         $pattern = $local_config_envname . ':' . '*.conf';
 283     } else {
 284         $pattern = catfile($ENV{$local_config_envname}, '*.conf');
 285     }
 286
 287     foreach (sort glob($pattern)) {
 288         &read_config($_);
 289     }
 290 }
 291
 292
 293 print "Configuring OpenSSL version $config{version} ($config{version_num})\n";
 294
 295 $config{prefix}="";
 296 $config{openssldir}="";
 297 $config{processor}="";
 298 $config{libdir}="";
 299 $config{cross_compile_prefix}="";
 300 $config{fipslibdir}="/usr/local/ssl/fips-2.0/lib/";
 301 my $nofipscanistercheck=0;
 302 $config{baseaddr}="0xFB00000";
 303 my $auto_threads=1;    # enable threads automatically? true by default
 304 my $default_ranlib;
 305 $config{fips}=0;
 306
 307 # Top level directories to build
 308 $config{dirs} = [ "crypto", "ssl", "engines", "apps", "test", "util", "tools", "fuzz" ];
 309 # crypto/ subdirectories to build
 310 $config{sdirs} = [
 311     "objects",
 312     "md2", "md4", "md5", "sha", "mdc2", "hmac", "ripemd", "whrlpool", "poly1305", "blake2",
 313     "des", "aes", "rc2", "rc4", "rc5", "idea", "bf", "cast", "camellia", "seed", "chacha", "modes",
 314     "bn", "ec", "rsa", "dsa", "dh", "dso", "engine",
 315     "buffer", "bio", "stack", "lhash", "rand", "err",
 316     "evp", "asn1", "pem", "x509", "x509v3", "conf", "txt_db", "pkcs7", "pkcs12", "comp", "ocsp", "ui",
 317     "cms", "ts", "srp", "cmac", "ct", "async", "kdf"
 318     ];
 319 # test/ subdirectories to build
 320 $config{tdirs} = [ "ossl_shim" ];
 321
 322 # Known TLS and DTLS protocols
 323 my @tls = qw(ssl3 tls1 tls1_1 tls1_2 tls1_3);
 324 my @dtls = qw(dtls1 dtls1_2);
 325
 326 # Explicitly known options that are possible to disable.  They can
 327 # be regexps, and will be used like this: /^no-${option}$/
 328 # For developers: keep it sorted alphabetically
 329
 330 my @disablables = (
 331     "afalgeng",
 332     "asan",
 333     "asm",
 334     "async",
 335     "autoalginit",
 336     "autoerrinit",
 337     "bf",
 338     "blake2",
 339     "camellia",
 340     "capieng",
 341     "cast",
 342     "chacha",
 343     "cmac",
 344     "cms",
 345     "comp",
 346     "crypto-mdebug",
 347     "crypto-mdebug-backtrace",
 348     "ct",
 349     "deprecated",
 350     "des",
 351     "dgram",
 352     "dh",
 353     "dsa",
 354     "dso",
 355     "dtls",
 356     "dynamic-engine",
 357     "ec",
 358     "ec2m",
 359     "ecdh",
 360     "ecdsa",
 361     "ec_nistp_64_gcc_128",
 362     "egd",
 363     "engine",
 364     "err",
 365     "external-tests",
 366     "filenames",
 367     "fuzz-libfuzzer",
 368     "fuzz-afl",
 369     "gost",
 370     "hw(-.+)?",
 371     "idea",
 372     "makedepend",
 373     "md2",
 374     "md4",
 375     "mdc2",
 376     "msan",
 377     "multiblock",
 378     "nextprotoneg",
 379     "ocb",
 380     "ocsp",
 381     "pic",
 382     "poly1305",
 383     "posix-io",
 384     "psk",
 385     "rc2",
 386     "rc4",
 387     "rc5",
 388     "rdrand",
 389     "rfc3779",
 390     "rmd160",
 391     "scrypt",
 392     "sctp",
 393     "seed",
 394     "shared",
 395     "sock",
 396     "srp",
 397     "srtp",
 398     "sse2",
 399     "ssl",
 400     "ssl-trace",
 401     "static-engine",
 402     "stdio",
 403     "threads",
 404     "tls",
 405     "ts",
 406     "ubsan",
 407     "ui",
 408     "unit-test",
 409     "whirlpool",
 410     "weak-ssl-ciphers",
 411     "zlib",
 412     "zlib-dynamic",
 413     );
 414 foreach my $proto ((@tls, @dtls))
 415         {
 416         push(@disablables, $proto);
 417         push(@disablables, "$proto-method");
 418         }
 419
 420 my %deprecated_disablables = (
 421     "ssl2" => undef,
 422     "buf-freelists" => undef,
 423     "ripemd" => "rmd160"
 424     );
 425
 426 # All of the following is disabled by default (RC5 was enabled before 0.9.8):
 427
 428 our %disabled = ( # "what"         => "comment"
 429                   "asan"                => "default",
 430                   "crypto-mdebug"       => "default",
 431                   "crypto-mdebug-backtrace" => "default",
 432                   "ec_nistp_64_gcc_128" => "default",
 433                   "egd"                 => "default",
 434                   "external-tests"      => "default",
 435                   "fuzz-libfuzzer"      => "default",
 436                   "fuzz-afl"            => "default",
 437                   "md2"                 => "default",
 438                   "msan"                => "default",
 439                   "rc5"                 => "default",
 440                   "sctp"                => "default",
 441                   "ssl-trace"           => "default",
 442                   "ssl3"                => "default",
 443                   "ssl3-method"         => "default",
 444                   "ubsan"               => "default",
 445           #TODO(TLS1.3): Temporarily disabled while this is a WIP
 446                   "tls1_3"              => "default",
 447                   "unit-test"           => "default",
 448                   "weak-ssl-ciphers"    => "default",
 449                   "zlib"                => "default",
 450                   "zlib-dynamic"        => "default",
 451                 );
 452
 453 # Note: => pair form used for aesthetics, not to truly make a hash table
 454 my @disable_cascades = (
 455     # "what"            => [ "cascade", ... ]
 456     sub { $config{processor} eq "386" }
 457                         => [ "sse2" ],
 458     "ssl"               => [ "ssl3" ],
 459     "ssl3-method"       => [ "ssl3" ],
 460     "zlib"              => [ "zlib-dynamic" ],
 461     "des"               => [ "mdc2" ],
 462     "ec"                => [ "ecdsa", "ecdh" ],
 463
 464     "dgram"             => [ "dtls", "sctp" ],
 465     "sock"              => [ "dgram" ],
 466     "dtls"              => [ @dtls ],
 467
 468     # SSL 3.0, (D)TLS 1.0 and TLS 1.1 require MD5 and SHA
 469     "md5"               => [ "ssl", "tls1", "tls1_1", "dtls1" ],
 470     "sha"               => [ "ssl", "tls1", "tls1_1", "dtls1" ],
 471
 472     # Additionally, SSL 3.0 requires either RSA or DSA+DH
 473     sub { $disabled{rsa}
 474           && ($disabled{dsa} || $disabled{dh}); }
 475                         => [ "ssl" ],
 476
 477     # (D)TLS 1.0 and TLS 1.1 also require either RSA or DSA+DH
 478     # or ECDSA + ECDH.  (D)TLS 1.2 has this requirement as well.
 479     # (XXX: We don't support PSK-only builds).
 480     sub { $disabled{rsa}
 481           && ($disabled{dsa} || $disabled{dh})
 482           && ($disabled{ecdsa} || $disabled{ecdh}); }
 483                         => [ "tls1", "tls1_1", "tls1_2", "tls1_3",
 484                              "dtls1", "dtls1_2" ],
 485
 486     "tls"               => [ @tls ],
 487
 488     # SRP requires TLSEXT
 489     "tlsext"            => [ "srp" ],
 490
 491     "crypto-mdebug"     => [ "crypto-mdebug-backtrace" ],
 492
 493     # Without DSO, we can't load dynamic engines, so don't build them dynamic
 494     "dso"               => [ "dynamic-engine" ],
 495
 496     # Without position independent code, there can be no shared libraries or DSOs
 497     "pic"               => [ "shared" ],
 498     "shared"            => [ "dynamic-engine" ],
 499     "engine"            => [ "afalgeng" ],
 500
 501     # no-autoalginit is only useful when building non-shared
 502     "autoalginit"       => [ "shared", "apps" ],
 503
 504     "stdio"             => [ "apps", "capieng" ],
 505     "apps"              => [ "tests" ],
 506     "comp"              => [ "zlib" ],
 507
 508     sub { !$disabled{"msan"} } => [ "asm" ],
 509     );
 510
 511 # Avoid protocol support holes.  Also disable all versions below N, if version
 512 # N is disabled while N+1 is enabled.
 513 #
 514 my @list = (reverse @tls);
 515 while ((my $first, my $second) = (shift @list, shift @list)) {
 516     last unless @list;
 517     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 518                               => [ @list ] );
 519     unshift @list, $second;
 520 }
 521 my @list = (reverse @dtls);
 522 while ((my $first, my $second) = (shift @list, shift @list)) {
 523     last unless @list;
 524     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 525                               => [ @list ] );
 526     unshift @list, $second;
 527 }
 528
 529 # Explicit "no-..." options will be collected in %disabled along with the defaults.
 530 # To remove something from %disabled, use "enable-foo".
 531 # For symmetry, "disable-foo" is a synonym for "no-foo".
 532
 533 my $no_sse2=0;
 534
 535 &usage if ($#ARGV < 0);
 536
 537 my $user_cflags="";
 538 my @user_defines=();
 539 $config{openssl_api_defines}=[];
 540 $config{openssl_algorithm_defines}=[];
 541 $config{openssl_thread_defines}=[];
 542 $config{openssl_sys_defines}=[];
 543 $config{openssl_other_defines}=[];
 544 my $libs="";
 545 my $target="";
 546 $config{options}="";
 547 $config{build_type} = "release";
 548
 549 my %unsupported_options = ();
 550 my %deprecated_options = ();
 551 while (@argvcopy)
 552         {
 553         $_ = shift @argvcopy;
 554         # VMS is a case insensitive environment, and depending on settings
 555         # out of our control, we may receive options uppercased.  Let's
 556         # downcase at least the part before any equal sign.
 557         if ($^O eq "VMS")
 558                 {
 559                 s/^([^=]*)/lc($1)/e;
 560                 }
 561         s /^-no-/no-/; # some people just can't read the instructions
 562
 563         # rewrite some options in "enable-..." form
 564         s /^-?-?shared$/enable-shared/;
 565         s /^sctp$/enable-sctp/;
 566         s /^threads$/enable-threads/;
 567         s /^zlib$/enable-zlib/;
 568         s /^zlib-dynamic$/enable-zlib-dynamic/;
 569
 570         if (/^(no|disable|enable)-(.+)$/)
 571                 {
 572                 my $word = $2;
 573                 if (!exists $deprecated_disablables{$word}
 574                         && !grep { $word =~ /^${_}$/ } @disablables)
 575                         {
 576                         $unsupported_options{$_} = 1;
 577                         next;
 578                         }
 579                 }
 580         if (/^no-(.+)$/ || /^disable-(.+)$/)
 581                 {
 582                 foreach my $proto ((@tls, @dtls))
 583                         {
 584                         if ($1 eq "$proto-method")
 585                                 {
 586                                 $disabled{"$proto"} = "option($proto-method)";
 587                                 last;
 588                                 }
 589                         }
 590                 if ($1 eq "dtls")
 591                         {
 592                         foreach my $proto (@dtls)
 593                                 {
 594                                 $disabled{$proto} = "option(dtls)";
 595                                 }
 596                         $disabled{"dtls"} = "option(dtls)";
 597                         }
 598                 elsif ($1 eq "ssl")
 599                         {
 600                         # Last one of its kind
 601                         $disabled{"ssl3"} = "option(ssl)";
 602                         }
 603                 elsif ($1 eq "tls")
 604                         {
 605                         # XXX: Tests will fail if all SSL/TLS
 606                         # protocols are disabled.
 607                         foreach my $proto (@tls)
 608                                 {
 609                                 $disabled{$proto} = "option(tls)";
 610                                 }
 611                         }
 612                 elsif ($1 eq "static-engine")
 613                         {
 614                         delete $disabled{"dynamic-engine"};
 615                         }
 616                 elsif ($1 eq "dynamic-engine")
 617                         {
 618                         $disabled{"dynamic-engine"} = "option";
 619                         }
 620                 elsif (exists $deprecated_disablables{$1})
 621                         {
 622                         $deprecated_options{$_} = 1;
 623                         if (defined $deprecated_disablables{$1})
 624                                 {
 625                                 $disabled{$deprecated_disablables{$1}} = "option";
 626                                 }
 627                         }
 628                 else
 629                         {
 630                         $disabled{$1} = "option";
 631                         }
 632                 # No longer an automatic choice
 633                 $auto_threads = 0 if ($1 eq "threads");
 634                 }
 635         elsif (/^enable-(.+)$/)
 636                 {
 637                 if ($1 eq "static-engine")
 638                         {
 639                         $disabled{"dynamic-engine"} = "option";
 640                         }
 641                 elsif ($1 eq "dynamic-engine")
 642                         {
 643                         delete $disabled{"dynamic-engine"};
 644                         }
 645                 elsif ($1 eq "zlib-dynamic")
 646                         {
 647                         delete $disabled{"zlib"};
 648                         }
 649                 my $algo = $1;
 650                 delete $disabled{$algo};
 651
 652                 # No longer an automatic choice
 653                 $auto_threads = 0 if ($1 eq "threads");
 654                 }
 655         elsif (/^--strict-warnings$/)
 656                 {
 657                 $strict_warnings = 1;
 658                 }
 659         elsif (/^--debug$/)
 660                 {
 661                 $config{build_type} = "debug";
 662                 }
 663         elsif (/^--release$/)
 664                 {
 665                 $config{build_type} = "release";
 666                 }
 667         elsif (/^386$/)
 668                 { $config{processor}=386; }
 669         elsif (/^fips$/)
 670                 {
 671                 $config{fips}=1;
 672                 }
 673         elsif (/^rsaref$/)
 674                 {
 675                 # No RSAref support any more since it's not needed.
 676                 # The check for the option is there so scripts aren't
 677                 # broken
 678                 }
 679         elsif (/^nofipscanistercheck$/)
 680                 {
 681                 $config{fips} = 1;
 682                 $nofipscanistercheck = 1;
 683                 }
 684         elsif (/^[-+]/)
 685                 {
 686                 if (/^--prefix=(.*)$/)
 687                         {
 688                         $config{prefix}=$1;
 689                         die "Directory given with --prefix MUST be absolute\n"
 690                                 unless file_name_is_absolute($config{prefix});
 691                         }
 692                 elsif (/^--api=(.*)$/)
 693                         {
 694                         $config{api}=$1;
 695                         }
 696                 elsif (/^--libdir=(.*)$/)
 697                         {
 698                         $config{libdir}=$1;
 699                         }
 700                 elsif (/^--openssldir=(.*)$/)
 701                         {
 702                         $config{openssldir}=$1;
 703                         }
 704                 elsif (/^--with-zlib-lib=(.*)$/)
 705                         {
 706                         $withargs{zlib_lib}=$1;
 707                         }
 708                 elsif (/^--with-zlib-include=(.*)$/)
 709                         {
 710                         $withargs{zlib_include}=$1;
 711                         }
 712                 elsif (/^--with-fuzzer-lib=(.*)$/)
 713                         {
 714                         $withargs{fuzzer_lib}=$1;
 715                         }
 716                 elsif (/^--with-fuzzer-include=(.*)$/)
 717                         {
 718                         $withargs{fuzzer_include}=$1;
 719                         }
 720                 elsif (/^--with-fipslibdir=(.*)$/)
 721                         {
 722                         $config{fipslibdir}="$1/";
 723                         }
 724                 elsif (/^--with-baseaddr=(.*)$/)
 725                         {
 726                         $config{baseaddr}="$1";
 727                         }
 728                 elsif (/^--cross-compile-prefix=(.*)$/)
 729                         {
 730                         $config{cross_compile_prefix}=$1;
 731                         }
 732                 elsif (/^--config=(.*)$/)
 733                         {
 734                         read_config $1;
 735                         }
 736                 elsif (/^-[lL](.*)$/ or /^-Wl,/)
 737                         {
 738                         $libs.=$_." ";
 739                         }
 740                 elsif (/^-rpath$/ or /^-R$/)
 741                         # -rpath is the OSF1 rpath flag
 742                         # -R is the old Solaris rpath flag
 743                         {
 744                         my $rpath = shift(@argvcopy) || "";
 745                         $rpath .= " " if $rpath ne "";
 746                         $libs.=$_." ".$rpath;
 747                         }
 748                 elsif (/^-static$/)
 749                         {
 750                         $libs.=$_." ";
 751                         $disabled{"dso"} = "forced";
 752                         $disabled{"pic"} = "forced";
 753                         $disabled{"shared"} = "forced";
 754                         $disabled{"threads"} = "forced";
 755                         }
 756                 elsif (/^-D(.*)$/)
 757                         {
 758                         push @user_defines, $1;
 759                         }
 760                 else    # common if (/^[-+]/), just pass down...
 761                         {
 762                         $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
 763                         $user_cflags.=" ".$_;
 764                         }
 765                 }
 766         else
 767                 {
 768                 die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
 769                 $target=$_;
 770                 }
 771         unless ($_ eq $target || /^no-/ || /^disable-/)
 772                 {
 773                 # "no-..." follows later after implied disactivations
 774                 # have been derived.  (Don't take this too seriously,
 775                 # we really only write OPTIONS to the Makefile out of
 776                 # nostalgia.)
 777
 778                 if ($config{options} eq "")
 779                         { $config{options} = $_; }
 780                 else
 781                         { $config{options} .= " ".$_; }
 782                 }
 783
 784         if (defined($config{api}) && !exists $apitable->{$config{api}}) {
 785                 die "***** Unsupported api compatibility level: $config{api}\n",
 786         }
 787
 788         if (keys %deprecated_options)
 789                 {
 790                 warn "***** Deprecated options: ",
 791                         join(", ", keys %deprecated_options), "\n";
 792                 }
 793         if (keys %unsupported_options)
 794                 {
 795                 die "***** Unsupported options: ",
 796                         join(", ", keys %unsupported_options), "\n";
 797                 }
 798         }
 799
 800 if ($libs =~ /(^|\s)-Wl,-rpath,/
 801     && !$disabled{shared}
 802     && !($disabled{asan} && $disabled{msan} && $disabled{ubsan})) {
 803     die "***** Cannot simultaneously use -rpath, shared libraries, and\n",
 804         "***** any of asan, msan or ubsan\n";
 805 }
 806
 807 if ($config{fips})
 808         {
 809         delete $disabled{"shared"} if ($disabled{"shared"} =~ /^default/);
 810         }
 811 else
 812         {
 813         @{$config{dirs}} = grep !/^fips$/, @{$config{dirs}};
 814         }
 815
 816 my @tocheckfor = (keys %disabled);
 817 while (@tocheckfor) {
 818     my %new_tocheckfor = ();
 819     my @cascade_copy = (@disable_cascades);
 820     while (@cascade_copy) {
 821         my ($test, $descendents) = (shift @cascade_copy, shift @cascade_copy);
 822         if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
 823             foreach(grep { !defined($disabled{$_}) } @$descendents) {
 824                 $new_tocheckfor{$_} = 1; $disabled{$_} = "forced";
 825             }
 826         }
 827     }
 828     @tocheckfor = (keys %new_tocheckfor);
 829 }
 830
 831 our $die = sub { die @_; };
 832 if ($target eq "TABLE") {
 833     local $die = sub { warn @_; };
 834     foreach (sort keys %table) {
 835         print_table_entry($_, "TABLE");
 836     }
 837     exit 0;
 838 }
 839
 840 if ($target eq "LIST") {
 841     foreach (sort keys %table) {
 842         print $_,"\n" unless $table{$_}->{template};
 843     }
 844     exit 0;
 845 }
 846
 847 if ($target eq "HASH") {
 848     local $die = sub { warn @_; };
 849     print "%table = (\n";
 850     foreach (sort keys %table) {
 851         print_table_entry($_, "HASH");
 852     }
 853     exit 0;
 854 }
 855
 856 # Backward compatibility?
 857 if ($target =~ m/^CygWin32(-.*)$/) {
 858     $target = "Cygwin".$1;
 859 }
 860
 861 foreach (sort (keys %disabled))
 862         {
 863         $config{options} .= " no-$_";
 864
 865         printf "    no-%-12s %-10s", $_, "[$disabled{$_}]";
 866
 867         if (/^dso$/)
 868                 { }
 869         elsif (/^threads$/)
 870                 { }
 871         elsif (/^shared$/)
 872                 { }
 873         elsif (/^pic$/)
 874                 { }
 875         elsif (/^zlib$/)
 876                 { }
 877         elsif (/^dynamic-engine$/)
 878                 { }
 879         elsif (/^makedepend$/)
 880                 { }
 881         elsif (/^zlib-dynamic$/)
 882                 { }
 883         elsif (/^sse2$/)
 884                 { $no_sse2 = 1; }
 885         elsif (/^engine$/)
 886                 {
 887                 @{$config{dirs}} = grep !/^engines$/, @{$config{dirs}};
 888                 @{$config{sdirs}} = grep !/^engine$/, @{$config{sdirs}};
 889                 push @{$config{openssl_other_defines}}, "OPENSSL_NO_ENGINE";
 890                 print " OPENSSL_NO_ENGINE (skip engines)";
 891                 }
 892         else
 893                 {
 894                 my ($WHAT, $what);
 895
 896                 ($WHAT = $what = $_) =~ tr/[\-a-z]/[_A-Z]/;
 897
 898                 # Fix up C macro end names
 899                 $WHAT = "RMD160" if $what eq "ripemd";
 900
 901                 # fix-up crypto/directory name(s)
 902                 $what = "ripemd" if $what eq "rmd160";
 903                 $what = "whrlpool" if $what eq "whirlpool";
 904
 905                 if ($what ne "async" && $what ne "err"
 906                     && grep { $_ eq $what } @{$config{sdirs}})
 907                         {
 908                         push @{$config{openssl_algorithm_defines}}, "OPENSSL_NO_$WHAT";
 909                         @{$config{sdirs}} = grep { $_ ne $what} @{$config{sdirs}};
 910
 911                         print " OPENSSL_NO_$WHAT (skip dir)";
 912                         }
 913                 else
 914                         {
 915                         push @{$config{openssl_other_defines}}, "OPENSSL_NO_$WHAT";
 916                         print " OPENSSL_NO_$WHAT";
 917
 918                         if (/^err$/)    { push @user_defines, "OPENSSL_NO_ERR"; }
 919                         }
 920                 }
 921
 922         print "\n";
 923         }
 924
 925 print "Configuring for $target\n";
 926 # Support for legacy targets having a name starting with 'debug-'
 927 my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
 928 if ($d) {
 929     $config{build_type} = "debug";
 930
 931     # If we do not find debug-foo in the table, the target is set to foo.
 932     if (!$table{$target}) {
 933         $target = $t;
 934     }
 935 }
 936 $config{target} = $target;
 937 my %target = resolve_config($target);
 938
 939 &usage if (!%target || $target{template});
 940
 941 my %conf_files = map { $_ => 1 } (@{$target{_conf_fname_int}});
 942 $config{conf_files} = [ sort keys %conf_files ];
 943 %target = ( %{$table{DEFAULTS}}, %target );
 944
 945 $target{cxxflags}=$target{cflags} unless defined $target{cxxflags};
 946 $target{exe_extension}="";
 947 $target{exe_extension}=".exe" if ($config{target} eq "DJGPP"
 948                                   || $config{target} =~ /^(?:Cygwin|mingw)/);
 949 $target{exe_extension}=".pm"  if ($config{target} =~ /vos/);
 950
 951 ($target{shared_extension_simple}=$target{shared_extension})
 952     =~ s|\.\$\(SHLIB_MAJOR\)\.\$\(SHLIB_MINOR\)||;
 953 $target{dso_extension}=$target{shared_extension_simple};
 954 ($target{shared_import_extension}=$target{shared_extension_simple}.".a")
 955     if ($config{target} =~ /^(?:Cygwin|mingw)/);
 956
 957
 958 $config{cross_compile_prefix} = $ENV{'CROSS_COMPILE'}
 959     if $config{cross_compile_prefix} eq "";
 960
 961 # Allow overriding the names of some tools.  USE WITH CARE
 962 # Note: only Unix cares about HASHBANGPERL...  that explains
 963 # the default string.
 964 $config{perl} =    ($^O ne "VMS" ? $^X : "perl");
 965 $config{hashbangperl} =
 966     $ENV{'HASHBANGPERL'}           || $ENV{'PERL'}     || "/usr/bin/env perl";
 967 $target{cc} =      $ENV{'CC'}      || $target{cc}      || "cc";
 968 $target{cxx} =     $ENV{'CXX'}     || $target{cxx}     || "c++";
 969 $target{ranlib} =  $ENV{'RANLIB'}  || $target{ranlib}  ||
 970                    (which("$config{cross_compile_prefix}ranlib") ?
 971                           "\$(CROSS_COMPILE)ranlib" : "true");
 972 $target{ar} =      $ENV{'AR'}      || $target{ar}      || "ar";
 973 $target{nm} =      $ENV{'NM'}      || $target{nm}      || "nm";
 974 $target{rc} =
 975     $ENV{'RC'}  || $ENV{'WINDRES'} || $target{rc}      || "windres";
 976
 977 # Allow overriding the build file name
 978 $target{build_file} = $ENV{BUILDFILE} || $target{build_file} || "Makefile";
 979
 980 # Cache information necessary for reconfiguration
 981 $config{cc} = $target{cc};
 982 $config{cxx} = $target{cxx};
 983 $config{build_file} = $target{build_file};
 984
 985 # For cflags, lflags, plib_lflags, ex_libs and defines, add the debug_
 986 # or release_ attributes.
 987 # Do it in such a way that no spurious space is appended (hence the grep).
 988 $config{defines} = [];
 989 $config{cflags} = "";
 990 $config{cxxflags} = "";
 991 $config{ex_libs} = "";
 992 $config{shared_ldflag} = "";
 993
 994 # Make sure build_scheme is consistent.
 995 $target{build_scheme} = [ $target{build_scheme} ]
 996     if ref($target{build_scheme}) ne "ARRAY";
 997
 998 my ($builder, $builder_platform, @builder_opts) =
 999     @{$target{build_scheme}};
1000
1001 push @{$config{defines}}, "NDEBUG"    if $config{build_type} eq "release";
1002
1003 if ($target =~ /^mingw/ && `$target{cc} --target-help 2>&1` =~ m/-mno-cygwin/m)
1004         {
1005         $config{cflags} .= " -mno-cygwin";
1006         $config{shared_ldflag} .= " -mno-cygwin";
1007         }
1008
1009 if ($target =~ /linux.*-mips/ && !$disabled{asm} && $user_cflags !~ /-m(ips|arch=)/) {
1010         # minimally required architecture flags for assembly modules
1011         $config{cflags}="-mips2 $config{cflags}" if ($target =~ /mips32/);
1012         $config{cflags}="-mips3 $config{cflags}" if ($target =~ /mips64/);
1013 }
1014
1015 my $no_shared_warn=0;
1016 my $no_user_cflags=0;
1017 my $no_user_defines=0;
1018
1019 # The DSO code currently always implements all functions so that no
1020 # applications will have to worry about that from a compilation point
1021 # of view. However, the "method"s may return zero unless that platform
1022 # has support compiled in for them. Currently each method is enabled
1023 # by a define "DSO_<name>" ... we translate the "dso_scheme" config
1024 # string entry into using the following logic;
1025 if (!$disabled{dso} && $target{dso_scheme} ne "")
1026         {
1027         $target{dso_scheme} =~ tr/[a-z]/[A-Z]/;
1028         if ($target{dso_scheme} eq "DLFCN")
1029                 {
1030                 unshift @{$config{defines}}, "DSO_DLFCN", "HAVE_DLFCN_H";
1031                 }
1032         elsif ($target{dso_scheme} eq "DLFCN_NO_H")
1033                 {
1034                 unshift @{$config{defines}}, "DSO_DLFCN";
1035                 }
1036         else
1037                 {
1038                 unshift @{$config{defines}}, "DSO_$target{dso_scheme}";
1039                 }
1040         }
1041
1042 $config{ex_libs}="$libs$config{ex_libs}" if ($libs ne "");
1043
1044 if ($disabled{asm})
1045         {
1046         if ($config{fips})
1047                 {
1048                 @{$config{defines}} = grep !/^[BL]_ENDIAN$/, @{$config{defines}};
1049                 @{$target{defines}} = grep !/^[BL]_ENDIAN$/, @{$target{defines}};
1050                 }
1051         }
1052
1053 # If threads aren't disabled, check how possible they are
1054 unless ($disabled{threads}) {
1055     if ($auto_threads) {
1056         # Enabled by default, disable it forcibly if unavailable
1057         if ($target{thread_scheme} eq "(unknown)") {
1058             $disabled{threads} = "unavailable";
1059         }
1060     } else {
1061         # The user chose to enable threads explicitly, let's see
1062         # if there's a chance that's possible
1063         if ($target{thread_scheme} eq "(unknown)") {
1064             # If the user asked for "threads" and we don't have internal
1065             # knowledge how to do it, [s]he is expected to provide any
1066             # system-dependent compiler options that are necessary.  We
1067             # can't truly check that the given options are correct, but
1068             # we expect the user to know what [s]He is doing.
1069             if ($no_user_cflags && $no_user_defines) {
1070                 die "You asked for multi-threading support, but didn't\n"
1071                     ,"provide any system-specific compiler options\n";
1072             }
1073         }
1074     }
1075 }
1076
1077 # If threads still aren't disabled, add a C macro to ensure the source
1078 # code knows about it.  Any other flag is taken care of by the configs.
1079 unless($disabled{threads}) {
1080     foreach (("defines", "openssl_thread_defines")) {
1081         push @{$config{$_}}, "OPENSSL_THREADS";
1082     }
1083 }
1084
1085 # With "deprecated" disable all deprecated features.
1086 if (defined($disabled{"deprecated"})) {
1087         $config{api} = $maxapi;
1088 }
1089
1090 if ($target{shared_target} eq "")
1091         {
1092         $no_shared_warn = 1
1093             if ((!$disabled{shared} || !$disabled{"dynamic-engine"})
1094                 && !$config{fips});
1095         $disabled{shared} = "no-shared-target";
1096         $disabled{pic} = $disabled{shared} = $disabled{"dynamic-engine"} =
1097             "no-shared-target";
1098         }
1099
1100 if ($disabled{"dynamic-engine"}) {
1101         push @{$config{defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
1102         $config{dynamic_engines} = 0;
1103 } else {
1104         push @{$config{defines}}, "OPENSSL_NO_STATIC_ENGINE";
1105         $config{dynamic_engines} = 1;
1106 }
1107
1108 unless ($disabled{"fuzz-libfuzzer"}) {
1109     $config{cflags} .= "-fsanitize-coverage=edge,indirect-calls ";
1110 }
1111
1112 unless ($disabled{asan}) {
1113     $config{cflags} .= "-fsanitize=address ";
1114 }
1115
1116 unless ($disabled{ubsan}) {
1117     # -DPEDANTIC or -fnosanitize=alignment may also be required on some
1118     # platforms.
1119     $config{cflags} .= "-fsanitize=undefined -fno-sanitize-recover=all ";
1120 }
1121
1122 unless ($disabled{msan}) {
1123   $config{cflags} .= "-fsanitize=memory ";
1124 }
1125
1126 unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
1127         && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
1128     $config{cflags} .= "-fno-omit-frame-pointer -g ";
1129 }
1130 #
1131 # Platform fix-ups
1132 #
1133
1134 # This saves the build files from having to check
1135 if ($disabled{pic})
1136         {
1137         $target{shared_cflag} = $target{shared_ldflag} =
1138                 $target{shared_rcflag} = "";
1139         }
1140 else
1141         {
1142         push @{$config{defines}}, "OPENSSL_PIC";
1143         }
1144
1145 if ($target{sys_id} ne "")
1146         {
1147         push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
1148         }
1149
1150 unless ($disabled{asm}) {
1151     $target{cpuid_asm_src}=$table{DEFAULTS}->{cpuid_asm_src} if ($config{processor} eq "386");
1152     $target{bn_asm_src} =~ s/\w+-gf2m.c// if (defined($disabled{ec2m}));
1153
1154     # bn-586 is the only one implementing bn_*_part_words
1155     push @{$config{defines}}, "OPENSSL_BN_ASM_PART_WORDS" if ($target{bn_asm_src} =~ /bn-586/);
1156     push @{$config{defines}}, "OPENSSL_IA32_SSE2" if (!$no_sse2 && $target{bn_asm_src} =~ /86/);
1157
1158     push @{$config{defines}}, "OPENSSL_BN_ASM_MONT" if ($target{bn_asm_src} =~ /-mont/);
1159     push @{$config{defines}}, "OPENSSL_BN_ASM_MONT5" if ($target{bn_asm_src} =~ /-mont5/);
1160     push @{$config{defines}}, "OPENSSL_BN_ASM_GF2m" if ($target{bn_asm_src} =~ /-gf2m/);
1161
1162     if ($config{fips}) {
1163         push @{$config{openssl_other_defines}}, "OPENSSL_FIPS";
1164     }
1165
1166     if ($target{sha1_asm_src}) {
1167         push @{$config{defines}}, "SHA1_ASM"   if ($target{sha1_asm_src} =~ /sx86/ || $target{sha1_asm_src} =~ /sha1/);
1168         push @{$config{defines}}, "SHA256_ASM" if ($target{sha1_asm_src} =~ /sha256/);
1169         push @{$config{defines}}, "SHA512_ASM" if ($target{sha1_asm_src} =~ /sha512/);
1170     }
1171     if ($target{rc4_asm_src} ne $table{DEFAULTS}->{rc4_asm_src}) {
1172         push @{$config{defines}}, "RC4_ASM";
1173     }
1174     if ($target{md5_asm_src}) {
1175         push @{$config{defines}}, "MD5_ASM";
1176     }
1177     $target{cast_asm_src}=$table{DEFAULTS}->{cast_asm_src} unless $disabled{pic}; # CAST assembler is not PIC
1178     if ($target{rmd160_asm_src}) {
1179         push @{$config{defines}}, "RMD160_ASM";
1180     }
1181     if ($target{aes_asm_src}) {
1182         push @{$config{defines}}, "AES_ASM" if ($target{aes_asm_src} =~ m/\baes-/);;
1183         # aes-ctr.fake is not a real file, only indication that assembler
1184         # module implements AES_ctr32_encrypt...
1185         push @{$config{defines}}, "AES_CTR_ASM" if ($target{aes_asm_src} =~ s/\s*aes-ctr\.fake//);
1186         # aes-xts.fake indicates presence of AES_xts_[en|de]crypt...
1187         push @{$config{defines}}, "AES_XTS_ASM" if ($target{aes_asm_src} =~ s/\s*aes-xts\.fake//);
1188         $target{aes_asm_src} =~ s/\s*(vpaes|aesni)-x86\.s//g if ($no_sse2);
1189         push @{$config{defines}}, "VPAES_ASM" if ($target{aes_asm_src} =~ m/vpaes/);
1190         push @{$config{defines}}, "BSAES_ASM" if ($target{aes_asm_src} =~ m/bsaes/);
1191     }
1192     if ($target{wp_asm_src} =~ /mmx/) {
1193         if ($config{processor} eq "386") {
1194             $target{wp_asm_src}=$table{DEFAULTS}->{wp_asm_src};
1195         } elsif (!$disabled{"whirlpool"}) {
1196             push @{$config{defines}}, "WHIRLPOOL_ASM";
1197         }
1198     }
1199     if ($target{modes_asm_src} =~ /ghash-/) {
1200         push @{$config{defines}}, "GHASH_ASM";
1201     }
1202     if ($target{ec_asm_src} =~ /ecp_nistz256/) {
1203         push @{$config{defines}}, "ECP_NISTZ256_ASM";
1204     }
1205     if ($target{poly1305_asm_src} ne "") {
1206         push @{$config{defines}}, "POLY1305_ASM";
1207     }
1208 }
1209
1210 my $ecc = $target{cc};
1211 if ($^O ne "VMS" && !$disabled{makedepend}) {
1212     # Is the compiler gcc or clang?  $ecc is used below to see if
1213     # error-checking can be turned on.
1214     my $ccpcc = "$config{cross_compile_prefix}$target{cc}";
1215     open(PIPE, "$ccpcc --version 2>&1 |");
1216     my $lines = 2;
1217     while ( <PIPE> ) {
1218         # Find the version number and save the major.
1219         m|(?:.*)\b(\d+)\.\d+\.\d+\b(?:.*)|;
1220         my $compiler_major = $1;
1221         # We know that GNU C version 3 and up as well as all clang
1222         # versions support dependency generation
1223         $config{makedepprog} = $ccpcc
1224             if (/clang/ || (/gcc/ && $compiler_major >= 3));
1225         $ecc = "clang" if /clang/;
1226         $ecc = "gcc" if /gcc/;
1227         last if ($config{makedepprog} || !$lines--);
1228     }
1229     close(PIPE);
1230
1231     $config{makedepprog} = which('makedepend') unless $config{makedepprog};
1232     $disabled{makedepend} = "unavailable" unless $config{makedepprog};
1233 }
1234
1235
1236
1237 # Deal with bn_ops ###################################################
1238
1239 $config{bn_ll}                  =0;
1240 $config{export_var_as_fn}       =0;
1241 my $def_int="unsigned int";
1242 $config{rc4_int}                =$def_int;
1243 ($config{b64l},$config{b64},$config{b32})=(0,0,1);
1244
1245 my $count = 0;
1246 foreach (sort split(/\s+/,$target{bn_ops})) {
1247     $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
1248     $config{export_var_as_fn}=1                 if $_ eq 'EXPORT_VAR_AS_FN';
1249     $config{bn_ll}=1                            if $_ eq 'BN_LLONG';
1250     $config{rc4_int}="unsigned char"            if $_ eq 'RC4_CHAR';
1251     ($config{b64l},$config{b64},$config{b32})
1252         =(0,1,0)                                if $_ eq 'SIXTY_FOUR_BIT';
1253     ($config{b64l},$config{b64},$config{b32})
1254         =(1,0,0)                                if $_ eq 'SIXTY_FOUR_BIT_LONG';
1255     ($config{b64l},$config{b64},$config{b32})
1256         =(0,0,1)                                if $_ eq 'THIRTY_TWO_BIT';
1257 }
1258 die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
1259     if $count > 1;
1260
1261
1262 # Hack cflags for better warnings (dev option) #######################
1263
1264 # "Stringify" the C flags string.  This permits it to be made part of a string
1265 # and works as well on command lines.
1266 $config{cflags} =~ s/([\\\"])/\\$1/g;
1267
1268 if (defined($config{api})) {
1269     $config{openssl_api_defines} = [ "OPENSSL_MIN_API=".$apitable->{$config{api}} ];
1270     my $apiflag = sprintf("OPENSSL_API_COMPAT=%s", $apitable->{$config{api}});
1271     push @{$config{defines}}, $apiflag;
1272 }
1273
1274 if ($strict_warnings)
1275         {
1276         my $wopt;
1277         die "ERROR --strict-warnings requires gcc or clang"
1278             unless $ecc eq 'gcc' || $ecc eq 'clang';
1279         foreach $wopt (split /\s+/, $gcc_devteam_warn)
1280                 {
1281                 $config{cflags} .= " $wopt" unless ($config{cflags} =~ /(?:^|\s)$wopt(?:\s|$)/)
1282                 }
1283         if ($ecc eq "clang")
1284                 {
1285                 foreach $wopt (split /\s+/, $clang_devteam_warn)
1286                         {
1287                         $config{cflags} .= " $wopt" unless ($config{cflags} =~ /(?:^|\s)$wopt(?:\s|$)/)
1288                         }
1289                 }
1290         }
1291
1292 unless ($disabled{"crypto-mdebug-backtrace"})
1293         {
1294         foreach my $wopt (split /\s+/, $memleak_devteam_backtrace)
1295                 {
1296                 $config{cflags} .= " $wopt" unless ($config{cflags} =~ /(?:^|\s)$wopt(?:\s|$)/)
1297                 }
1298         if ($target =~ /^BSD-/)
1299                 {
1300                 $config{ex_libs} .= " -lexecinfo";
1301                 }
1302         }
1303
1304 if ($user_cflags ne "") { $config{cflags}="$config{cflags}$user_cflags"; }
1305 else                    { $no_user_cflags=1;  }
1306 if (@user_defines) { $config{defines}=[ @{$config{defines}}, @user_defines ]; }
1307 else               { $no_user_defines=1;    }
1308
1309 # ALL MODIFICATIONS TO %config and %target MUST BE DONE FROM HERE ON
1310
1311 unless ($disabled{afalgeng}) {
1312     $config{afalgeng}="";
1313     if ($target =~ m/^linux/) {
1314         my $minver = 4*10000 + 1*100 + 0;
1315         if ($config{cross_compile_prefix} eq "") {
1316             my $verstr = `uname -r`;
1317             my ($ma, $mi1, $mi2) = split("\\.", $verstr);
1318             ($mi2) = $mi2 =~ /(\d+)/;
1319             my $ver = $ma*10000 + $mi1*100 + $mi2;
1320             if ($ver < $minver) {
1321                 $disabled{afalgeng} = "too-old-kernel";
1322             } else {
1323                 push @{$config{engdirs}}, "afalg";
1324             }
1325         } else {
1326             $disabled{afalgeng} = "cross-compiling";
1327         }
1328     } else {
1329         $disabled{afalgeng}  = "not-linux";
1330     }
1331 }
1332
1333 push @{$config{openssl_other_defines}}, "OPENSSL_NO_AFALGENG" if ($disabled{afalgeng});
1334
1335 # If we use the unified build, collect information from build.info files
1336 my %unified_info = ();
1337
1338 my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
1339 if ($builder eq "unified") {
1340     use lib catdir(dirname(__FILE__),"util");
1341     use with_fallback qw(Text::Template);
1342
1343     sub cleandir {
1344         my $base = shift;
1345         my $dir = shift;
1346         my $relativeto = shift || ".";
1347
1348         $dir = catdir($base,$dir) unless isabsolute($dir);
1349
1350         # Make sure the directories we're building in exists
1351         mkpath($dir);
1352
1353         my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
1354         #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
1355         return $res;
1356     }
1357
1358     sub cleanfile {
1359         my $base = shift;
1360         my $file = shift;
1361         my $relativeto = shift || ".";
1362
1363         $file = catfile($base,$file) unless isabsolute($file);
1364
1365         my $d = dirname($file);
1366         my $f = basename($file);
1367
1368         # Make sure the directories we're building in exists
1369         mkpath($d);
1370
1371         my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
1372         #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
1373         return $res;
1374     }
1375
1376     # Store the name of the template file we will build the build file from
1377     # in %config.  This may be useful for the build file itself.
1378     my @build_file_template_names =
1379         ( $builder_platform."-".$target{build_file}.".tmpl",
1380           $target{build_file}.".tmpl" );
1381     my @build_file_templates = ();
1382
1383     # First, look in the user provided directory, if given
1384     if (defined $ENV{$local_config_envname}) {
1385         @build_file_templates =
1386             map {
1387                 if ($^O eq 'VMS') {
1388                     # VMS environment variables are logical names,
1389                     # which can be used as is
1390                     $local_config_envname . ':' . $_;
1391                 } else {
1392                     catfile($ENV{$local_config_envname}, $_);
1393                 }
1394             }
1395             @build_file_template_names;
1396     }
1397     # Then, look in our standard directory
1398     push @build_file_templates,
1399         ( map { cleanfile($srcdir, catfile("Configurations", $_), $blddir) }
1400           @build_file_template_names );
1401
1402     my $build_file_template;
1403     for $_ (@build_file_templates) {
1404         $build_file_template = $_;
1405         last if -f $build_file_template;
1406
1407         $build_file_template = undef;
1408     }
1409     if (!defined $build_file_template) {
1410         die "*** Couldn't find any of:\n", join("\n", @build_file_templates), "\n";
1411     }
1412     $config{build_file_templates}
1413       = [ $build_file_template,
1414           cleanfile($srcdir, catfile("Configurations", "common.tmpl"),
1415                     $blddir) ];
1416
1417     my @build_infos = ( [ ".", "build.info" ] );
1418     foreach (@{$config{dirs}}) {
1419         push @build_infos, [ $_, "build.info" ]
1420             if (-f catfile($srcdir, $_, "build.info"));
1421     }
1422     foreach (@{$config{sdirs}}) {
1423         push @build_infos, [ catdir("crypto", $_), "build.info" ]
1424             if (-f catfile($srcdir, "crypto", $_, "build.info"));
1425     }
1426     foreach (@{$config{engdirs}}) {
1427         push @build_infos, [ catdir("engines", $_), "build.info" ]
1428             if (-f catfile($srcdir, "engines", $_, "build.info"));
1429     }
1430     foreach (@{$config{tdirs}}) {
1431         push @build_infos, [ catdir("test", $_), "build.info" ]
1432             if (-f catfile($srcdir, "test", $_, "build.info"));
1433     }
1434
1435     $config{build_infos} = [ ];
1436
1437     foreach (@build_infos) {
1438         my $sourced = catdir($srcdir, $_->[0]);
1439         my $buildd = catdir($blddir, $_->[0]);
1440
1441         mkpath($buildd);
1442
1443         my $f = $_->[1];
1444         # The basic things we're trying to build
1445         my @programs = ();
1446         my @programs_install = ();
1447         my @libraries = ();
1448         my @libraries_install = ();
1449         my @engines = ();
1450         my @engines_install = ();
1451         my @scripts = ();
1452         my @scripts_install = ();
1453         my @extra = ();
1454         my @overrides = ();
1455         my @intermediates = ();
1456         my @rawlines = ();
1457
1458         my %ordinals = ();
1459         my %sources = ();
1460         my %shared_sources = ();
1461         my %includes = ();
1462         my %depends = ();
1463         my %renames = ();
1464         my %sharednames = ();
1465         my %generate = ();
1466
1467         push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
1468         my $template = Text::Template->new(TYPE => 'FILE',
1469                                            SOURCE => catfile($sourced, $f));
1470         die "Something went wrong with $sourced/$f: $!\n" unless $template;
1471         my @text =
1472             split /^/m,
1473             $template->fill_in(HASH => { config => \%config,
1474                                          target => \%target,
1475                                          disabled => \%disabled,
1476                                          withargs => \%withargs,
1477                                          builddir => abs2rel($buildd, $blddir),
1478                                          sourcedir => abs2rel($sourced, $blddir),
1479                                          buildtop => abs2rel($blddir, $blddir),
1480                                          sourcetop => abs2rel($srcdir, $blddir) },
1481                                DELIMITERS => [ "{-", "-}" ]);
1482
1483         # The top item of this stack has the following values
1484         # -2 positive already run and we found ELSE (following ELSIF should fail)
1485         # -1 positive already run (skip until ENDIF)
1486         # 0 negatives so far (if we're at a condition, check it)
1487         # 1 last was positive (don't skip lines until next ELSE, ELSIF or ENDIF)
1488         # 2 positive ELSE (following ELSIF should fail)
1489         my @skip = ();
1490         collect_information(
1491             collect_from_array([ @text ],
1492                                qr/\\$/ => sub { my $l1 = shift; my $l2 = shift;
1493                                                 $l1 =~ s/\\$//; $l1.$l2 }),
1494             # Info we're looking for
1495             qr/^\s*IF\[((?:\\.|[^\\\]])*)\]\s*$/
1496             => sub {
1497                 if (! @skip || $skip[$#skip] > 0) {
1498                     push @skip, !! $1;
1499                 } else {
1500                     push @skip, -1;
1501                 }
1502             },
1503             qr/^\s*ELSIF\[((?:\\.|[^\\\]])*)\]\s*$/
1504             => sub { die "ELSIF out of scope" if ! @skip;
1505                      die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
1506                      $skip[$#skip] = -1 if $skip[$#skip] != 0;
1507                      $skip[$#skip] = !! $1
1508                          if $skip[$#skip] == 0; },
1509             qr/^\s*ELSE\s*$/
1510             => sub { die "ELSE out of scope" if ! @skip;
1511                      $skip[$#skip] = -2 if $skip[$#skip] != 0;
1512                      $skip[$#skip] = 2 if $skip[$#skip] == 0; },
1513             qr/^\s*ENDIF\s*$/
1514             => sub { die "ENDIF out of scope" if ! @skip;
1515                      pop @skip; },
1516             qr/^\s*PROGRAMS(_NO_INST)?\s*=\s*(.*)\s*$/
1517             => sub {
1518                 if (!@skip || $skip[$#skip] > 0) {
1519                     my $install = $1;
1520                     my @x = tokenize($2);
1521                     push @programs, @x;
1522                     push @programs_install, @x unless $install;
1523                 }
1524             },
1525             qr/^\s*LIBS(_NO_INST)?\s*=\s*(.*)\s*$/
1526             => sub {
1527                 if (!@skip || $skip[$#skip] > 0) {
1528                     my $install = $1;
1529                     my @x = tokenize($2);
1530                     push @libraries, @x;
1531                     push @libraries_install, @x unless $install;
1532                 }
1533             },
1534             qr/^\s*ENGINES(_NO_INST)?\s*=\s*(.*)\s*$/
1535             => sub {
1536                 if (!@skip || $skip[$#skip] > 0) {
1537                     my $install = $1;
1538                     my @x = tokenize($2);
1539                     push @engines, @x;
1540                     push @engines_install, @x unless $install;
1541                 }
1542             },
1543             qr/^\s*SCRIPTS(_NO_INST)?\s*=\s*(.*)\s*$/
1544             => sub {
1545                 if (!@skip || $skip[$#skip] > 0) {
1546                     my $install = $1;
1547                     my @x = tokenize($2);
1548                     push @scripts, @x;
1549                     push @scripts_install, @x unless $install;
1550                 }
1551             },
1552             qr/^\s*EXTRA\s*=\s*(.*)\s*$/
1553             => sub { push @extra, tokenize($1)
1554                          if !@skip || $skip[$#skip] > 0 },
1555             qr/^\s*OVERRIDES\s*=\s*(.*)\s*$/
1556             => sub { push @overrides, tokenize($1)
1557                          if !@skip || $skip[$#skip] > 0 },
1558
1559             qr/^\s*ORDINALS\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/,
1560             => sub { push @{$ordinals{$1}}, tokenize($2)
1561                          if !@skip || $skip[$#skip] > 0 },
1562             qr/^\s*SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1563             => sub { push @{$sources{$1}}, tokenize($2)
1564                          if !@skip || $skip[$#skip] > 0 },
1565             qr/^\s*SHARED_SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1566             => sub { push @{$shared_sources{$1}}, tokenize($2)
1567                          if !@skip || $skip[$#skip] > 0 },
1568             qr/^\s*INCLUDE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1569             => sub { push @{$includes{$1}}, tokenize($2)
1570                          if !@skip || $skip[$#skip] > 0 },
1571             qr/^\s*DEPEND\[((?:\\.|[^\\\]])*)\]\s*=\s*(.*)\s*$/
1572             => sub { push @{$depends{$1}}, tokenize($2)
1573                          if !@skip || $skip[$#skip] > 0 },
1574             qr/^\s*GENERATE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1575             => sub { push @{$generate{$1}}, $2
1576                          if !@skip || $skip[$#skip] > 0 },
1577             qr/^\s*RENAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1578             => sub { push @{$renames{$1}}, tokenize($2)
1579                          if !@skip || $skip[$#skip] > 0 },
1580             qr/^\s*SHARED_NAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1581             => sub { push @{$sharednames{$1}}, tokenize($2)
1582                          if !@skip || $skip[$#skip] > 0 },
1583             qr/^\s*BEGINRAW\[((?:\\.|[^\\\]])+)\]\s*$/
1584             => sub {
1585                 my $lineiterator = shift;
1586                 my $target_kind = $1;
1587                 while (defined $lineiterator->()) {
1588                     s|\R$||;
1589                     if (/^\s*ENDRAW\[((?:\\.|[^\\\]])+)\]\s*$/) {
1590                         die "ENDRAW doesn't match BEGINRAW"
1591                             if $1 ne $target_kind;
1592                         last;
1593                     }
1594                     next if @skip && $skip[$#skip] <= 0;
1595                     push @rawlines,  $_
1596                         if ($target_kind eq $target{build_file}
1597                             || $target_kind eq $target{build_file}."(".$builder_platform.")");
1598                 }
1599             },
1600             qr/^\s*(?:#.*)?$/ => sub { },
1601             "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
1602             "BEFORE" => sub {
1603                 if ($buildinfo_debug) {
1604                     print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
1605                     print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1606                 }
1607             },
1608             "AFTER" => sub {
1609                 if ($buildinfo_debug) {
1610                     print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1611                 }
1612             },
1613             );
1614         die "runaway IF?" if (@skip);
1615
1616         foreach (keys %renames) {
1617             die "$_ renamed to more than one thing: "
1618                 ,join(" ", @{$renames{$_}}),"\n"
1619                 if scalar @{$renames{$_}} > 1;
1620             my $dest = cleanfile($buildd, $_, $blddir);
1621             my $to = cleanfile($buildd, $renames{$_}->[0], $blddir);
1622             die "$dest renamed to more than one thing: "
1623                 ,$unified_info{rename}->{$dest}, $to
1624                 unless !defined($unified_info{rename}->{$dest})
1625                 or $unified_info{rename}->{$dest} eq $to;
1626             $unified_info{rename}->{$dest} = $to;
1627         }
1628
1629         foreach (@programs) {
1630             my $program = cleanfile($buildd, $_, $blddir);
1631             if ($unified_info{rename}->{$program}) {
1632                 $program = $unified_info{rename}->{$program};
1633             }
1634             $unified_info{programs}->{$program} = 1;
1635         }
1636
1637         foreach (@programs_install) {
1638             my $program = cleanfile($buildd, $_, $blddir);
1639             if ($unified_info{rename}->{$program}) {
1640                 $program = $unified_info{rename}->{$program};
1641             }
1642             $unified_info{install}->{programs}->{$program} = 1;
1643         }
1644
1645         foreach (@libraries) {
1646             my $library = cleanfile($buildd, $_, $blddir);
1647             if ($unified_info{rename}->{$library}) {
1648                 $library = $unified_info{rename}->{$library};
1649             }
1650             $unified_info{libraries}->{$library} = 1;
1651         }
1652
1653         foreach (@libraries_install) {
1654             my $library = cleanfile($buildd, $_, $blddir);
1655             if ($unified_info{rename}->{$library}) {
1656                 $library = $unified_info{rename}->{$library};
1657             }
1658             $unified_info{install}->{libraries}->{$library} = 1;
1659         }
1660
1661         die <<"EOF" if scalar @engines and !$config{dynamic_engines};
1662 ENGINES can only be used if configured with 'dynamic-engine'.
1663 This is usually a fault in a build.info file.
1664 EOF
1665         foreach (@engines) {
1666             my $library = cleanfile($buildd, $_, $blddir);
1667             if ($unified_info{rename}->{$library}) {
1668                 $library = $unified_info{rename}->{$library};
1669             }
1670             $unified_info{engines}->{$library} = 1;
1671         }
1672
1673         foreach (@engines_install) {
1674             my $library = cleanfile($buildd, $_, $blddir);
1675             if ($unified_info{rename}->{$library}) {
1676                 $library = $unified_info{rename}->{$library};
1677             }
1678             $unified_info{install}->{engines}->{$library} = 1;
1679         }
1680
1681         foreach (@scripts) {
1682             my $script = cleanfile($buildd, $_, $blddir);
1683             if ($unified_info{rename}->{$script}) {
1684                 $script = $unified_info{rename}->{$script};
1685             }
1686             $unified_info{scripts}->{$script} = 1;
1687         }
1688
1689         foreach (@scripts_install) {
1690             my $script = cleanfile($buildd, $_, $blddir);
1691             if ($unified_info{rename}->{$script}) {
1692                 $script = $unified_info{rename}->{$script};
1693             }
1694             $unified_info{install}->{scripts}->{$script} = 1;
1695         }
1696
1697         foreach (@extra) {
1698             my $extra = cleanfile($buildd, $_, $blddir);
1699             $unified_info{extra}->{$extra} = 1;
1700         }
1701
1702         foreach (@overrides) {
1703             my $override = cleanfile($buildd, $_, $blddir);
1704             $unified_info{overrides}->{$override} = 1;
1705         }
1706
1707         push @{$unified_info{rawlines}}, @rawlines;
1708
1709         unless ($disabled{shared}) {
1710             # Check sharednames.
1711             foreach (keys %sharednames) {
1712                 my $dest = cleanfile($buildd, $_, $blddir);
1713                 if ($unified_info{rename}->{$dest}) {
1714                     $dest = $unified_info{rename}->{$dest};
1715                 }
1716                 die "shared_name for $dest with multiple values: "
1717                     ,join(" ", @{$sharednames{$_}}),"\n"
1718                     if scalar @{$sharednames{$_}} > 1;
1719                 my $to = cleanfile($buildd, $sharednames{$_}->[0], $blddir);
1720                 die "shared_name found for a library $dest that isn't defined\n"
1721                     unless $unified_info{libraries}->{$dest};
1722                 die "shared_name for $dest with multiple values: "
1723                     ,$unified_info{sharednames}->{$dest}, ", ", $to
1724                     unless !defined($unified_info{sharednames}->{$dest})
1725                     or $unified_info{sharednames}->{$dest} eq $to;
1726                 $unified_info{sharednames}->{$dest} = $to;
1727             }
1728
1729             # Additionally, we set up sharednames for libraries that don't
1730             # have any, as themselves.
1731             foreach (keys %{$unified_info{libraries}}) {
1732                 if (!defined $unified_info{sharednames}->{$_}) {
1733                     $unified_info{sharednames}->{$_} = $_
1734                 }
1735             }
1736         }
1737
1738         foreach (keys %ordinals) {
1739             my $dest = $_;
1740             my $ddest = cleanfile($buildd, $_, $blddir);
1741             if ($unified_info{rename}->{$ddest}) {
1742                 $ddest = $unified_info{rename}->{$ddest};
1743             }
1744             foreach (@{$ordinals{$dest}}) {
1745                 my %known_ordinals =
1746                     (
1747                      crypto =>
1748                      cleanfile($sourced, catfile("util", "libcrypto.num"), $blddir),
1749                      ssl =>
1750                      cleanfile($sourced, catfile("util", "libssl.num"), $blddir)
1751                     );
1752                 my $o = $known_ordinals{$_};
1753                 die "Ordinals for $ddest defined more than once\n"
1754                     if $unified_info{ordinals}->{$ddest};
1755                 $unified_info{ordinals}->{$ddest} = [ $_, $o ];
1756             }
1757         }
1758
1759         foreach (keys %sources) {
1760             my $dest = $_;
1761             my $ddest = cleanfile($buildd, $_, $blddir);
1762             if ($unified_info{rename}->{$ddest}) {
1763                 $ddest = $unified_info{rename}->{$ddest};
1764             }
1765             foreach (@{$sources{$dest}}) {
1766                 my $s = cleanfile($sourced, $_, $blddir);
1767
1768                 # If it isn't in the source tree, we assume it's generated
1769                 # in the build tree
1770                 if (! -f $s) {
1771                     $s = cleanfile($buildd, $_, $blddir);
1772                 }
1773                 # We recognise C++, C and asm files
1774                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
1775                     my $o = $_;
1776                     $o =~ s/\.[csS]$/.o/; # C and assembler
1777                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
1778                     $o = cleanfile($buildd, $o, $blddir);
1779                     $unified_info{sources}->{$ddest}->{$o} = 1;
1780                     $unified_info{sources}->{$o}->{$s} = 1;
1781                 } else {
1782                     $unified_info{sources}->{$ddest}->{$s} = 1;
1783                 }
1784             }
1785         }
1786
1787         foreach (keys %shared_sources) {
1788             my $dest = $_;
1789             my $ddest = cleanfile($buildd, $_, $blddir);
1790             if ($unified_info{rename}->{$ddest}) {
1791                 $ddest = $unified_info{rename}->{$ddest};
1792             }
1793             foreach (@{$shared_sources{$dest}}) {
1794                 my $s = cleanfile($sourced, $_, $blddir);
1795
1796                 # If it isn't in the source tree, we assume it's generated
1797                 # in the build tree
1798                 if (! -f $s) {
1799                     $s = cleanfile($buildd, $_, $blddir);
1800                 }
1801                 # We recognise C++, C and asm files
1802                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
1803                     my $o = $_;
1804                     $o =~ s/\.[csS]$/.o/; # C and assembler
1805                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
1806                     $o = cleanfile($buildd, $o, $blddir);
1807                     $unified_info{shared_sources}->{$ddest}->{$o} = 1;
1808                     $unified_info{sources}->{$o}->{$s} = 1;
1809                 } else {
1810                     die "unrecognised source file type for shared library: $s\n";
1811                 }
1812             }
1813         }
1814
1815         foreach (keys %generate) {
1816             my $dest = $_;
1817             my $ddest = cleanfile($buildd, $_, $blddir);
1818             if ($unified_info{rename}->{$ddest}) {
1819                 $ddest = $unified_info{rename}->{$ddest};
1820             }
1821             die "more than one generator for $dest: "
1822                     ,join(" ", @{$generate{$_}}),"\n"
1823                     if scalar @{$generate{$_}} > 1;
1824             my @generator = split /\s+/, $generate{$dest}->[0];
1825             $generator[0] = cleanfile($sourced, $generator[0], $blddir),
1826             $unified_info{generate}->{$ddest} = [ @generator ];
1827         }
1828
1829         foreach (keys %depends) {
1830             my $dest = $_;
1831             my $ddest = $dest eq "" ? "" : cleanfile($sourced, $_, $blddir);
1832
1833             # If the destination doesn't exist in source, it can only be
1834             # a generated file in the build tree.
1835             if ($ddest ne "" && ! -f $ddest) {
1836                 $ddest = cleanfile($buildd, $_, $blddir);
1837                 if ($unified_info{rename}->{$ddest}) {
1838                     $ddest = $unified_info{rename}->{$ddest};
1839                 }
1840             }
1841             foreach (@{$depends{$dest}}) {
1842                 my $d = cleanfile($sourced, $_, $blddir);
1843
1844                 # If we know it's generated, or assume it is because we can't
1845                 # find it in the source tree, we set file we depend on to be
1846                 # in the build tree rather than the source tree, and assume
1847                 # and that there are lines to build it in a BEGINRAW..ENDRAW
1848                 # section or in the Makefile template.
1849                 if (! -f $d
1850                     || (grep { $d eq $_ }
1851                         map { cleanfile($srcdir, $_, $blddir) }
1852                         grep { /\.h$/ } keys %{$unified_info{generate}})) {
1853                     $d = cleanfile($buildd, $_, $blddir);
1854                 }
1855                 # Take note if the file to depend on is being renamed
1856                 # Take extra care with files ending with .a, they should
1857                 # be treated without that extension, and the extension
1858                 # should be added back after treatment.
1859                 $d =~ /(\.a)?$/;
1860                 my $e = $1 // "";
1861                 $d = $`;
1862                 if ($unified_info{rename}->{$d}) {
1863                     $d = $unified_info{rename}->{$d};
1864                 }
1865                 $d .= $e;
1866                 $unified_info{depends}->{$ddest}->{$d} = 1;
1867                 # If we depend on a header file or a perl module, let's make
1868                 # sure it can get included
1869                 if ($dest ne "" && $d =~ /\.(h|pm)$/) {
1870                     my $i = dirname($d);
1871                     push @{$unified_info{includes}->{$ddest}->{source}}, $i
1872                         unless grep { $_ eq $i } @{$unified_info{includes}->{$ddest}->{source}};
1873                 }
1874             }
1875         }
1876
1877         foreach (keys %includes) {
1878             my $dest = $_;
1879             my $ddest = cleanfile($sourced, $_, $blddir);
1880
1881             # If the destination doesn't exist in source, it can only be
1882             # a generated file in the build tree.
1883             if (! -f $ddest) {
1884                 $ddest = cleanfile($buildd, $_, $blddir);
1885                 if ($unified_info{rename}->{$ddest}) {
1886                     $ddest = $unified_info{rename}->{$ddest};
1887                 }
1888             }
1889             foreach (@{$includes{$dest}}) {
1890                 my $is = cleandir($sourced, $_, $blddir);
1891                 my $ib = cleandir($buildd, $_, $blddir);
1892                 push @{$unified_info{includes}->{$ddest}->{source}}, $is
1893                     unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
1894                 push @{$unified_info{includes}->{$ddest}->{build}}, $ib
1895                     unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
1896             }
1897         }
1898     }
1899
1900     ### Make unified_info a bit more efficient
1901     # One level structures
1902     foreach (("programs", "libraries", "engines", "scripts", "extra", "overrides")) {
1903         $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
1904     }
1905     # Two level structures
1906     foreach my $l1 (("install", "sources", "shared_sources", "ldadd", "depends")) {
1907         foreach my $l2 (sort keys %{$unified_info{$l1}}) {
1908             $unified_info{$l1}->{$l2} =
1909                 [ sort keys %{$unified_info{$l1}->{$l2}} ];
1910         }
1911     }
1912     # Includes
1913     foreach my $dest (sort keys %{$unified_info{includes}}) {
1914         if (defined($unified_info{includes}->{$dest}->{build})) {
1915             my @source_includes =
1916                 ( @{$unified_info{includes}->{$dest}->{source}} );
1917             $unified_info{includes}->{$dest} =
1918                 [ @{$unified_info{includes}->{$dest}->{build}} ];
1919             foreach my $inc (@source_includes) {
1920                 push @{$unified_info{includes}->{$dest}}, $inc
1921                     unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
1922             }
1923         } else {
1924             $unified_info{includes}->{$dest} =
1925                 [ @{$unified_info{includes}->{$dest}->{source}} ];
1926         }
1927     }
1928 }
1929
1930 # For the schemes that need it, we provide the old *_obj configs
1931 # from the *_asm_obj ones
1932 foreach (grep /_(asm|aux)_src$/, keys %target) {
1933     my $src = $_;
1934     (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
1935     $target{$obj} = $target{$src};
1936     $target{$obj} =~ s/\.[csS]\b/.o/g; # C and assembler
1937     $target{$obj} =~ s/\.(cc|cpp)\b/_cc.o/g; # C++
1938 }
1939
1940 # Write down our configuration where it fits #########################
1941
1942 open(OUT,">configdata.pm") || die "unable to create configdata.pm: $!\n";
1943 print OUT <<"EOF";
1944 package configdata;
1945
1946 use strict;
1947 use warnings;
1948
1949 use Exporter;
1950 #use vars qw(\@ISA \@EXPORT);
1951 our \@ISA = qw(Exporter);
1952 our \@EXPORT = qw(\%config \%target \%disabled \%withargs \%unified_info \@disablables);
1953
1954 EOF
1955 print OUT "our %config = (\n";
1956 foreach (sort keys %config) {
1957     if (ref($config{$_}) eq "ARRAY") {
1958         print OUT "  ", $_, " => [ ", join(", ",
1959                                            map { quotify("perl", $_) }
1960                                            @{$config{$_}}), " ],\n";
1961     } else {
1962         print OUT "  ", $_, " => ", quotify("perl", $config{$_}), ",\n"
1963     }
1964 }
1965 print OUT <<"EOF";
1966 );
1967
1968 EOF
1969 print OUT "our %target = (\n";
1970 foreach (sort keys %target) {
1971     if (ref($target{$_}) eq "ARRAY") {
1972         print OUT "  ", $_, " => [ ", join(", ",
1973                                            map { quotify("perl", $_) }
1974                                            @{$target{$_}}), " ],\n";
1975     } else {
1976         print OUT "  ", $_, " => ", quotify("perl", $target{$_}), ",\n"
1977     }
1978 }
1979 print OUT <<"EOF";
1980 );
1981
1982 EOF
1983 print OUT "our \%available_protocols = (\n";
1984 print OUT "  tls => [ ", join(", ", map { quotify("perl", $_) } @tls), " ],\n";
1985 print OUT "  dtls => [ ", join(", ", map { quotify("perl", $_) } @dtls), " ],\n";
1986 print OUT <<"EOF";
1987 );
1988
1989 EOF
1990 print OUT "our \@disablables = (\n";
1991 foreach (@disablables) {
1992     print OUT "  ", quotify("perl", $_), ",\n";
1993 }
1994 print OUT <<"EOF";
1995 );
1996
1997 EOF
1998 print OUT "our \%disabled = (\n";
1999 foreach (sort keys %disabled) {
2000     print OUT "  ", quotify("perl", $_), " => ", quotify("perl", $disabled{$_}), ",\n";
2001 }
2002 print OUT <<"EOF";
2003 );
2004
2005 EOF
2006 print OUT "our %withargs = (\n";
2007 foreach (sort keys %withargs) {
2008     if (ref($withargs{$_}) eq "ARRAY") {
2009         print OUT "  ", $_, " => [ ", join(", ",
2010                                            map { quotify("perl", $_) }
2011                                            @{$withargs{$_}}), " ],\n";
2012     } else {
2013         print OUT "  ", $_, " => ", quotify("perl", $withargs{$_}), ",\n"
2014     }
2015 }
2016 print OUT <<"EOF";
2017 );
2018
2019 EOF
2020 if ($builder eq "unified") {
2021     my $recurse;
2022     $recurse = sub {
2023         my $indent = shift;
2024         foreach (@_) {
2025             if (ref $_ eq "ARRAY") {
2026                 print OUT " "x$indent, "[\n";
2027                 foreach (@$_) {
2028                     $recurse->($indent + 4, $_);
2029                 }
2030                 print OUT " "x$indent, "],\n";
2031             } elsif (ref $_ eq "HASH") {
2032                 my %h = %$_;
2033                 print OUT " "x$indent, "{\n";
2034                 foreach (sort keys %h) {
2035                     if (ref $h{$_} eq "") {
2036                         print OUT " "x($indent + 4), quotify("perl", $_), " => ", quotify("perl", $h{$_}), ",\n";
2037                     } else {
2038                         print OUT " "x($indent + 4), quotify("perl", $_), " =>\n";
2039                         $recurse->($indent + 8, $h{$_});
2040                     }
2041                 }
2042                 print OUT " "x$indent, "},\n";
2043             } else {
2044                 print OUT " "x$indent, quotify("perl", $_), ",\n";
2045             }
2046         }
2047     };
2048     print OUT "our %unified_info = (\n";
2049     foreach (sort keys %unified_info) {
2050         if (ref $unified_info{$_} eq "") {
2051             print OUT " "x4, quotify("perl", $_), " => ", quotify("perl", $unified_info{$_}), ",\n";
2052         } else {
2053             print OUT " "x4, quotify("perl", $_), " =>\n";
2054             $recurse->(8, $unified_info{$_});
2055         }
2056     }
2057     print OUT <<"EOF";
2058 );
2059
2060 EOF
2061 }
2062 print OUT "1;\n";
2063 close(OUT);
2064
2065 print "\n";
2066 print "PROCESSOR     =$config{processor}\n" if $config{processor};
2067 print "PERL          =$config{perl}\n";
2068 print "PERLVERSION   =$Config{version} for $Config{archname}\n";
2069 print "HASHBANGPERL  =$config{hashbangperl}\n";
2070 print "CC            =$config{cross_compile_prefix}$target{cc}\n";
2071 print "CFLAG         =$target{cflags} $config{cflags}\n";
2072 print "CXX           =$config{cross_compile_prefix}$target{cxx}\n"
2073     if defined $target{cxx};
2074 print "CXXFLAG       =$target{cxxflags} $config{cxxflags}\n"
2075     if defined $target{cxx};
2076 print "DEFINES       =",join(" ", @{$target{defines}}, @{$config{defines}}),"\n";
2077 #print "RANLIB        =", $target{ranlib} eq '$(CROSS_COMPILE)ranlib' ?
2078 #                             "$config{cross_compile_prefix}ranlib" :
2079 #                             "$target{ranlib}", "\n";
2080 print "EX_LIBS       =$target{ex_libs} $config{ex_libs}\n";
2081
2082 my %builders = (
2083     unified => sub {
2084         run_dofile(catfile($blddir, $target{build_file}),
2085                    @{$config{build_file_templates}});
2086     },
2087     );
2088
2089 $builders{$builder}->($builder_platform, @builder_opts);
2090
2091 print <<"EOF" if ($disabled{threads} eq "unavailable");
2092
2093 The library could not be configured for supporting multi-threaded
2094 applications as the compiler options required on this system are not known.
2095 See file INSTALL for details if you need multi-threading.
2096 EOF
2097
2098 print <<"EOF" if ($no_shared_warn);
2099
2100 The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
2101 platform, so we will pretend you gave the option 'no-pic', which also disables
2102 'shared' and 'dynamic-engine'.  If you know how to implement shared libraries
2103 or position independent code, please let us know (but please first make sure
2104 you have tried with a current version of OpenSSL).
2105 EOF
2106
2107 print <<"EOF" if (-f catfile($srcdir, "configdata.pm") && $srcdir ne $blddir);
2108
2109 WARNING: there are indications that another build was made in the source
2110 directory.  This build may have picked up artifacts from that build, the
2111 safest course of action is to clean the source directory and redo this
2112 configuration.
2113 EOF
2114
2115 exit(0);
2116
2117 ######################################################################
2118 #
2119 # Helpers and utility functions
2120 #
2121
2122 # Configuration file reading #########################################
2123
2124 # Note: All of the helper functions are for lazy evaluation.  They all
2125 # return a CODE ref, which will return the intended value when evaluated.
2126 # Thus, whenever there's mention of a returned value, it's about that
2127 # intended value.
2128
2129 # Helper function to implement conditional inheritance depending on the
2130 # value of $disabled{asm}.  Used in inherit_from values as follows:
2131 #
2132 #      inherit_from => [ "template", asm("asm_tmpl") ]
2133 #
2134 sub asm {
2135     my @x = @_;
2136     sub {
2137         $disabled{asm} ? () : @x;
2138     }
2139 }
2140
2141 # Helper function to implement conditional value variants, with a default
2142 # plus additional values based on the value of $config{build_type}.
2143 # Arguments are given in hash table form:
2144 #
2145 #       picker(default => "Basic string: ",
2146 #              debug   => "debug",
2147 #              release => "release")
2148 #
2149 # When configuring with --debug, the resulting string will be
2150 # "Basic string: debug", and when not, it will be "Basic string: release"
2151 #
2152 # This can be used to create variants of sets of flags according to the
2153 # build type:
2154 #
2155 #       cflags => picker(default => "-Wall",
2156 #                        debug   => "-g -O0",
2157 #                        release => "-O3")
2158 #
2159 sub picker {
2160     my %opts = @_;
2161     return sub { add($opts{default} || (),
2162                      $opts{$config{build_type}} || ())->(); }
2163 }
2164
2165 # Helper function to combine several values of different types into one.
2166 # This is useful if you want to combine a string with the result of a
2167 # lazy function, such as:
2168 #
2169 #       cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
2170 #
2171 sub combine {
2172     my @stuff = @_;
2173     return sub { add(@stuff)->(); }
2174 }
2175
2176 # Helper function to implement conditional values depending on the value
2177 # of $disabled{threads}.  Can be used as follows:
2178 #
2179 #       cflags => combine("-Wall", threads("-pthread"))
2180 #
2181 sub threads {
2182     my @flags = @_;
2183     return sub { add($disabled{threads} ? () : @flags)->(); }
2184 }
2185
2186
2187
2188 our $add_called = 0;
2189 # Helper function to implement adding values to already existing configuration
2190 # values.  It handles elements that are ARRAYs, CODEs and scalars
2191 sub _add {
2192     my $separator = shift;
2193
2194     # If there's any ARRAY in the collection of values OR the separator
2195     # is undef, we will return an ARRAY of combined values, otherwise a
2196     # string of joined values with $separator as the separator.
2197     my $found_array = !defined($separator);
2198
2199     my @values =
2200         map {
2201             my $res = $_;
2202             while (ref($res) eq "CODE") {
2203                 $res = $res->();
2204             }
2205             if (defined($res)) {
2206                 if (ref($res) eq "ARRAY") {
2207                     $found_array = 1;
2208                     @$res;
2209                 } else {
2210                     $res;
2211                 }
2212             } else {
2213                 ();
2214             }
2215     } (@_);
2216
2217     $add_called = 1;
2218
2219     if ($found_array) {
2220         [ @values ];
2221     } else {
2222         join($separator, grep { defined($_) && $_ ne "" } @values);
2223     }
2224 }
2225 sub add_before {
2226     my $separator = " ";
2227     if (ref($_[$#_]) eq "HASH") {
2228         my $opts = pop;
2229         $separator = $opts->{separator};
2230     }
2231     my @x = @_;
2232     sub { _add($separator, @x, @_) };
2233 }
2234 sub add {
2235     my $separator = " ";
2236     if (ref($_[$#_]) eq "HASH") {
2237         my $opts = pop;
2238         $separator = $opts->{separator};
2239     }
2240     my @x = @_;
2241     sub { _add($separator, @_, @x) };
2242 }
2243
2244 # configuration reader, evaluates the input file as a perl script and expects
2245 # it to fill %targets with target configurations.  Those are then added to
2246 # %table.
2247 sub read_config {
2248     my $fname = shift;
2249     open(CONFFILE, "< $fname")
2250         or die "Can't open configuration file '$fname'!\n";
2251     my $x = $/;
2252     undef $/;
2253     my $content = <CONFFILE>;
2254     $/ = $x;
2255     close(CONFFILE);
2256     my %targets = ();
2257     {
2258         # Protect certain tables from tampering
2259         local %table = %::table;
2260
2261         eval $content;
2262         warn $@ if $@;
2263     }
2264
2265     # For each target, check that it's configured with a hash table.
2266     foreach (keys %targets) {
2267         if (ref($targets{$_}) ne "HASH") {
2268             if (ref($targets{$_}) eq "") {
2269                 warn "Deprecated target configuration for $_, ignoring...\n";
2270             } else {
2271                 warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
2272             }
2273             delete $targets{$_};
2274         } else {
2275             $targets{$_}->{_conf_fname_int} = add([ $fname ]);
2276         }
2277     }
2278
2279     %table = (%table, %targets);
2280
2281 }
2282
2283 # configuration resolver.  Will only resolve all the lazy evaluation
2284 # codeblocks for the chosen target and all those it inherits from,
2285 # recursively
2286 sub resolve_config {
2287     my $target = shift;
2288     my @breadcrumbs = @_;
2289
2290 #    my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
2291
2292     if (grep { $_ eq $target } @breadcrumbs) {
2293         die "inherit_from loop!  target backtrace:\n  "
2294             ,$target,"\n  ",join("\n  ", @breadcrumbs),"\n";
2295     }
2296
2297     if (!defined($table{$target})) {
2298         warn "Warning! target $target doesn't exist!\n";
2299         return ();
2300     }
2301     # Recurse through all inheritances.  They will be resolved on the
2302     # fly, so when this operation is done, they will all just be a
2303     # bunch of attributes with string values.
2304     # What we get here, though, are keys with references to lists of
2305     # the combined values of them all.  We will deal with lists after
2306     # this stage is done.
2307     my %combined_inheritance = ();
2308     if ($table{$target}->{inherit_from}) {
2309         my @inherit_from =
2310             map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
2311         foreach (@inherit_from) {
2312             my %inherited_config = resolve_config($_, $target, @breadcrumbs);
2313
2314             # 'template' is a marker that's considered private to
2315             # the config that had it.
2316             delete $inherited_config{template};
2317
2318             foreach (keys %inherited_config) {
2319                 if (!$combined_inheritance{$_}) {
2320                     $combined_inheritance{$_} = [];
2321                 }
2322                 push @{$combined_inheritance{$_}}, $inherited_config{$_};
2323             }
2324         }
2325     }
2326
2327     # We won't need inherit_from in this target any more, since we've
2328     # resolved all the inheritances that lead to this
2329     delete $table{$target}->{inherit_from};
2330
2331     # Now is the time to deal with those lists.  Here's the place to
2332     # decide what shall be done with those lists, all based on the
2333     # values of the target we're currently dealing with.
2334     # - If a value is a coderef, it will be executed with the list of
2335     #   inherited values as arguments.
2336     # - If the corresponding key doesn't have a value at all or is the
2337     #   empty string, the inherited value list will be run through the
2338     #   default combiner (below), and the result becomes this target's
2339     #   value.
2340     # - Otherwise, this target's value is assumed to be a string that
2341     #   will simply override the inherited list of values.
2342     my $default_combiner = add();
2343
2344     my %all_keys =
2345         map { $_ => 1 } (keys %combined_inheritance,
2346                          keys %{$table{$target}});
2347
2348     sub process_values {
2349         my $object    = shift;
2350         my $inherited = shift;  # Always a [ list ]
2351         my $target    = shift;
2352         my $entry     = shift;
2353
2354         $add_called = 0;
2355
2356         while(ref($object) eq "CODE") {
2357             $object = $object->(@$inherited);
2358         }
2359         if (!defined($object)) {
2360             return ();
2361         }
2362         elsif (ref($object) eq "ARRAY") {
2363             local $add_called;  # To make sure recursive calls don't affect it
2364             return [ map { process_values($_, $inherited, $target, $entry) }
2365                      @$object ];
2366         } elsif (ref($object) eq "") {
2367             return $object;
2368         } else {
2369             die "cannot handle reference type ",ref($object)
2370                 ," found in target ",$target," -> ",$entry,"\n";
2371         }
2372     }
2373
2374     foreach (sort keys %all_keys) {
2375         my $previous = $combined_inheritance{$_};
2376
2377         # Current target doesn't have a value for the current key?
2378         # Assign it the default combiner, the rest of this loop body
2379         # will handle it just like any other coderef.
2380         if (!exists $table{$target}->{$_}) {
2381             $table{$target}->{$_} = $default_combiner;
2382         }
2383
2384         $table{$target}->{$_} = process_values($table{$target}->{$_},
2385                                                $combined_inheritance{$_},
2386                                                $target, $_);
2387         unless(defined($table{$target}->{$_})) {
2388             delete $table{$target}->{$_};
2389         }
2390 #        if ($extra_checks &&
2391 #            $previous && !($add_called ||  $previous ~~ $table{$target}->{$_})) {
2392 #            warn "$_ got replaced in $target\n";
2393 #        }
2394     }
2395
2396     # Finally done, return the result.
2397     return %{$table{$target}};
2398 }
2399
2400 sub usage
2401         {
2402         print STDERR $usage;
2403         print STDERR "\npick os/compiler from:\n";
2404         my $j=0;
2405         my $i;
2406         my $k=0;
2407         foreach $i (sort keys %table)
2408                 {
2409                 next if $table{$i}->{template};
2410                 next if $i =~ /^debug/;
2411                 $k += length($i) + 1;
2412                 if ($k > 78)
2413                         {
2414                         print STDERR "\n";
2415                         $k=length($i);
2416                         }
2417                 print STDERR $i . " ";
2418                 }
2419         foreach $i (sort keys %table)
2420                 {
2421                 next if $table{$i}->{template};
2422                 next if $i !~ /^debug/;
2423                 $k += length($i) + 1;
2424                 if ($k > 78)
2425                         {
2426                         print STDERR "\n";
2427                         $k=length($i);
2428                         }
2429                 print STDERR $i . " ";
2430                 }
2431         print STDERR "\n\nNOTE: If in doubt, on Unix-ish systems use './config'.\n";
2432         exit(1);
2433         }
2434
2435 sub run_dofile
2436 {
2437     my $out = shift;
2438     my @templates = @_;
2439
2440     unlink $out || warn "Can't remove $out, $!"
2441         if -f $out;
2442     foreach (@templates) {
2443         die "Can't open $_, $!" unless -f $_;
2444     }
2445     my $perlcmd = (quotify("maybeshell", $config{perl}))[0];
2446     my $cmd = "$perlcmd \"-I.\" \"-Mconfigdata\" \"$dofile\" -o\"Configure\" \"".join("\" \"",@templates)."\" > \"$out.new\"";
2447     #print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
2448     system($cmd);
2449     exit 1 if $? != 0;
2450     rename("$out.new", $out) || die "Can't rename $out.new, $!";
2451 }
2452
2453 sub which
2454 {
2455     my ($name)=@_;
2456
2457     if (eval { require IPC::Cmd; 1; }) {
2458         IPC::Cmd->import();
2459         return scalar IPC::Cmd::can_run($name);
2460     } else {
2461         # if there is $directories component in splitpath,
2462         # then it's not something to test with $PATH...
2463         return $name if (File::Spec->splitpath($name))[1];
2464
2465         foreach (File::Spec->path()) {
2466             my $fullpath = catfile($_, "$name$target{exe_extension}");
2467             if (-f $fullpath and -x $fullpath) {
2468                 return $fullpath;
2469             }
2470         }
2471     }
2472 }
2473
2474 # Configuration printer ##############################################
2475
2476 sub print_table_entry
2477 {
2478     my $target = shift;
2479     my %target = resolve_config($target);
2480     my $type = shift;
2481
2482     # Don't print the templates
2483     return if $target{template};
2484
2485     my @sequence = (
2486         "sys_id",
2487         "cc",
2488         "cflags",
2489         "defines",
2490         "unistd",
2491         "ld",
2492         "lflags",
2493         "loutflag",
2494         "plib_lflags",
2495         "ex_libs",
2496         "bn_ops",
2497         "apps_aux_src",
2498         "cpuid_asm_src",
2499         "uplink_aux_src",
2500         "bn_asm_src",
2501         "ec_asm_src",
2502         "des_asm_src",
2503         "aes_asm_src",
2504         "bf_asm_src",
2505         "md5_asm_src",
2506         "cast_asm_src",
2507         "sha1_asm_src",
2508         "rc4_asm_src",
2509         "rmd160_asm_src",
2510         "rc5_asm_src",
2511         "wp_asm_src",
2512         "cmll_asm_src",
2513         "modes_asm_src",
2514         "padlock_asm_src",
2515         "chacha_asm_src",
2516         "poly1035_asm_src",
2517         "thread_scheme",
2518         "perlasm_scheme",
2519         "dso_scheme",
2520         "shared_target",
2521         "shared_cflag",
2522         "shared_defines",
2523         "shared_ldflag",
2524         "shared_rcflag",
2525         "shared_extension",
2526         "dso_extension",
2527         "obj_extension",
2528         "exe_extension",
2529         "ranlib",
2530         "ar",
2531         "arflags",
2532         "aroutflag",
2533         "rc",
2534         "rcflags",
2535         "rcoutflag",
2536         "mt",
2537         "mtflags",
2538         "mtinflag",
2539         "mtoutflag",
2540         "multilib",
2541         "build_scheme",
2542         );
2543
2544     if ($type eq "TABLE") {
2545         print "\n";
2546         print "*** $target\n";
2547         foreach (@sequence) {
2548             if (ref($target{$_}) eq "ARRAY") {
2549                 printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
2550             } else {
2551                 printf "\$%-12s = %s\n", $_, $target{$_};
2552             }
2553         }
2554     } elsif ($type eq "HASH") {
2555         my $largest =
2556             length((sort { length($a) <=> length($b) } @sequence)[-1]);
2557         print "    '$target' => {\n";
2558         foreach (@sequence) {
2559             if ($target{$_}) {
2560                 if (ref($target{$_}) eq "ARRAY") {
2561                     print "      '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
2562                 } else {
2563                     print "      '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
2564                 }
2565             }
2566         }
2567         print "    },\n";
2568     }
2569 }
2570
2571 # Utility routines ###################################################
2572
2573 # On VMS, if the given file is a logical name, File::Spec::Functions
2574 # will consider it an absolute path.  There are cases when we want a
2575 # purely syntactic check without checking the environment.
2576 sub isabsolute {
2577     my $file = shift;
2578
2579     # On non-platforms, we just use file_name_is_absolute().
2580     return file_name_is_absolute($file) unless $^O eq "VMS";
2581
2582     # If the file spec includes a device or a directpry spec,
2583     # file_name_is_absolute() is perfectly safe.
2584     return file_name_is_absolute($file) if $file =~ m|[:\[]|;
2585
2586     # Here, we know the given file spec isn't absolute
2587     return 0;
2588 }
2589
2590 # Makes a directory absolute and cleans out /../ in paths like foo/../bar
2591 # On some platforms, this uses rel2abs(), while on others, realpath() is used.
2592 # realpath() requires that at least all path components except the last is an
2593 # existing directory.  On VMS, the last component of the directory spec must
2594 # exist.
2595 sub absolutedir {
2596     my $dir = shift;
2597
2598     # realpath() is quite buggy on VMS.  It uses LIB$FID_TO_NAME, which
2599     # will return the volume name for the device, no matter what.  Also,
2600     # it will return an incorrect directory spec if the argument is a
2601     # directory that doesn't exist.
2602     if ($^O eq "VMS") {
2603         return rel2abs($dir);
2604     }
2605
2606     # We use realpath() on Unix, since no other will properly clean out
2607     # a directory spec.
2608     use Cwd qw/realpath/;
2609
2610     return realpath($dir);
2611 }
2612
2613 sub quotify {
2614     my %processors = (
2615         perl    => sub { my $x = shift;
2616                          $x =~ s/([\\\$\@"])/\\$1/g;
2617                          return '"'.$x.'"'; },
2618         maybeshell => sub { my $x = shift;
2619                             (my $y = $x) =~ s/([\\\"])/\\$1/g;
2620                             if ($x ne $y || $x =~ m|\s|) {
2621                                 return '"'.$y.'"';
2622                             } else {
2623                                 return $x;
2624                             }
2625                         },
2626         );
2627     my $for = shift;
2628     my $processor =
2629         defined($processors{$for}) ? $processors{$for} : sub { shift; };
2630
2631     return map { $processor->($_); } @_;
2632 }
2633
2634 # collect_from_file($filename, $line_concat_cond_re, $line_concat)
2635 # $filename is a file name to read from
2636 # $line_concat_cond_re is a regexp detecting a line continuation ending
2637 # $line_concat is a CODEref that takes care of concatenating two lines
2638 sub collect_from_file {
2639     my $filename = shift;
2640     my $line_concat_cond_re = shift;
2641     my $line_concat = shift;
2642
2643     open my $fh, $filename || die "unable to read $filename: $!\n";
2644     return sub {
2645         my $saved_line = "";
2646         $_ = "";
2647         while (<$fh>) {
2648             s|\R$||;
2649             if (defined $line_concat) {
2650                 $_ = $line_concat->($saved_line, $_);
2651                 $saved_line = "";
2652             }
2653             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
2654                 $saved_line = $_;
2655                 next;
2656             }
2657             return $_;
2658         }
2659         die "$filename ending with continuation line\n" if $_;
2660         close $fh;
2661         return undef;
2662     }
2663 }
2664
2665 # collect_from_array($array, $line_concat_cond_re, $line_concat)
2666 # $array is an ARRAYref of lines
2667 # $line_concat_cond_re is a regexp detecting a line continuation ending
2668 # $line_concat is a CODEref that takes care of concatenating two lines
2669 sub collect_from_array {
2670     my $array = shift;
2671     my $line_concat_cond_re = shift;
2672     my $line_concat = shift;
2673     my @array = (@$array);
2674
2675     return sub {
2676         my $saved_line = "";
2677         $_ = "";
2678         while (defined($_ = shift @array)) {
2679             s|\R$||;
2680             if (defined $line_concat) {
2681                 $_ = $line_concat->($saved_line, $_);
2682                 $saved_line = "";
2683             }
2684             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
2685                 $saved_line = $_;
2686                 next;
2687             }
2688             return $_;
2689         }
2690         die "input text ending with continuation line\n" if $_;
2691         return undef;
2692     }
2693 }
2694
2695 # collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
2696 # $lineiterator is a CODEref that delivers one line at a time.
2697 # All following arguments are regex/CODEref pairs, where the regexp detects a
2698 # line and the CODEref does something with the result of the regexp.
2699 sub collect_information {
2700     my $lineiterator = shift;
2701     my %collectors = @_;
2702
2703     while(defined($_ = $lineiterator->())) {
2704         s|\R$||;
2705         my $found = 0;
2706         if ($collectors{"BEFORE"}) {
2707             $collectors{"BEFORE"}->($_);
2708         }
2709         foreach my $re (keys %collectors) {
2710             if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
2711                 $collectors{$re}->($lineiterator);
2712                 $found = 1;
2713             };
2714         }
2715         if ($collectors{"OTHERWISE"}) {
2716             $collectors{"OTHERWISE"}->($lineiterator, $_)
2717                 unless $found || !defined $collectors{"OTHERWISE"};
2718         }
2719         if ($collectors{"AFTER"}) {
2720             $collectors{"AFTER"}->($_);
2721         }
2722     }
2723 }
2724
2725 # tokenize($line)
2726 # $line is a line of text to split up into tokens
2727 # returns a list of tokens
2728 #
2729 # Tokens are divided by spaces.  If the tokens include spaces, they
2730 # have to be quoted with single or double quotes.  Double quotes
2731 # inside a double quoted token must be escaped.  Escaping is done
2732 # with backslash.
2733 # Basically, the same quoting rules apply for " and ' as in any
2734 # Unix shell.
2735 sub tokenize {
2736     my $line = my $debug_line = shift;
2737     my @result = ();
2738
2739     while ($line =~ s|^\s+||, $line ne "") {
2740         my $token = "";
2741         while ($line ne "" && $line !~ m|^\s|) {
2742             if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
2743                 $token .= $1;
2744                 $line = $';
2745             } elsif ($line =~ m/^'([^']*)'/) {
2746                 $token .= $1;
2747                 $line = $';
2748             } elsif ($line =~ m/^(\S+)/) {
2749                 $token .= $1;
2750                 $line = $';
2751             }
2752         }
2753         push @result, $token;
2754     }
2755
2756     if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
2757         print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
2758         print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
2759     }
2760     return @result;
2761 }