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Configure revision 1.1.1.21
      1 #! /usr/bin/env perl
      2 # -*- mode: perl; -*-
      3 # Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
      4 #
      5 # Licensed under the OpenSSL license (the "License").  You may not use
      6 # this file except in compliance with the License.  You can obtain a copy
      7 # in the file LICENSE in the source distribution or at
      8 # https://www.openssl.org/source/license.html
      9 
     10 ##  Configure -- OpenSSL source tree configuration script
     11 
     12 use 5.10.0;
     13 use strict;
     14 use FindBin;
     15 use lib "$FindBin::Bin/util/perl";
     16 use File::Basename;
     17 use File::Spec::Functions qw/:DEFAULT abs2rel rel2abs/;
     18 use File::Path qw/mkpath/;
     19 use OpenSSL::Glob;
     20 
     21 # see INSTALL for instructions.
     22 
     23 my $orig_death_handler = $SIG{__DIE__};
     24 $SIG{__DIE__} = \&death_handler;
     25 
     26 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";
     27 
     28 # Options:
     29 #
     30 # --config      add the given configuration file, which will be read after
     31 #               any "Configurations*" files that are found in the same
     32 #               directory as this script.
     33 # --prefix      prefix for the OpenSSL installation, which includes the
     34 #               directories bin, lib, include, share/man, share/doc/openssl
     35 #               This becomes the value of INSTALLTOP in Makefile
     36 #               (Default: /usr/local)
     37 # --openssldir  OpenSSL data area, such as openssl.cnf, certificates and keys.
     38 #               If it's a relative directory, it will be added on the directory
     39 #               given with --prefix.
     40 #               This becomes the value of OPENSSLDIR in Makefile and in C.
     41 #               (Default: PREFIX/ssl)
     42 #
     43 # --cross-compile-prefix Add specified prefix to binutils components.
     44 #
     45 # --api         One of 0.9.8, 1.0.0 or 1.1.0.  Do not compile support for
     46 #               interfaces deprecated as of the specified OpenSSL version.
     47 #
     48 # no-hw-xxx     do not compile support for specific crypto hardware.
     49 #               Generic OpenSSL-style methods relating to this support
     50 #               are always compiled but return NULL if the hardware
     51 #               support isn't compiled.
     52 # no-hw         do not compile support for any crypto hardware.
     53 # [no-]threads  [don't] try to create a library that is suitable for
     54 #               multithreaded applications (default is "threads" if we
     55 #               know how to do it)
     56 # [no-]shared	[don't] try to create shared libraries when supported.
     57 # [no-]pic      [don't] try to build position independent code when supported.
     58 #               If disabled, it also disables shared and dynamic-engine.
     59 # no-asm        do not use assembler
     60 # no-dso        do not compile in any native shared-library methods. This
     61 #               will ensure that all methods just return NULL.
     62 # no-egd        do not compile support for the entropy-gathering daemon APIs
     63 # [no-]zlib     [don't] compile support for zlib compression.
     64 # zlib-dynamic	Like "zlib", but the zlib library is expected to be a shared
     65 #		library and will be loaded in run-time by the OpenSSL library.
     66 # sctp          include SCTP support
     67 # enable-weak-ssl-ciphers
     68 #               Enable weak ciphers that are disabled by default.
     69 # 386           generate 80386 code in assembly modules
     70 # no-sse2       disables IA-32 SSE2 code in assembly modules, the above
     71 #               mentioned '386' option implies this one
     72 # no-<cipher>   build without specified algorithm (rsa, idea, rc5, ...)
     73 # -<xxx> +<xxx> compiler options are passed through
     74 # -static       while -static is also a pass-through compiler option (and
     75 #               as such is limited to environments where it's actually
     76 #               meaningful), it triggers a number configuration options,
     77 #               namely no-dso, no-pic, no-shared and no-threads. It is
     78 #               argued that the only reason to produce statically linked
     79 #               binaries (and in context it means executables linked with
     80 #               -static flag, and not just executables linked with static
     81 #               libcrypto.a) is to eliminate dependency on specific run-time,
     82 #               a.k.a. libc version. The mentioned config options are meant
     83 #               to achieve just that. Unfortunately on Linux it's impossible
     84 #               to eliminate the dependency completely for openssl executable
     85 #               because of getaddrinfo and gethostbyname calls, which can
     86 #               invoke dynamically loadable library facility anyway to meet
     87 #               the lookup requests. For this reason on Linux statically
     88 #               linked openssl executable has rather debugging value than
     89 #               production quality.
     90 #
     91 # DEBUG_SAFESTACK use type-safe stacks to enforce type-safety on stack items
     92 #		provided to stack calls. Generates unique stack functions for
     93 #		each possible stack type.
     94 # BN_LLONG	use the type 'long long' in crypto/bn/bn.h
     95 # RC4_CHAR	use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
     96 # Following are set automatically by this script
     97 #
     98 # MD5_ASM	use some extra md5 assembler,
     99 # SHA1_ASM	use some extra sha1 assembler, must define L_ENDIAN for x86
    100 # RMD160_ASM	use some extra ripemd160 assembler,
    101 # SHA256_ASM	sha256_block is implemented in assembler
    102 # SHA512_ASM	sha512_block is implemented in assembler
    103 # AES_ASM	AES_[en|de]crypt is implemented in assembler
    104 
    105 # Minimum warning options... any contributions to OpenSSL should at least get
    106 # past these.
    107 
    108 # DEBUG_UNUSED enables __owur (warn unused result) checks.
    109 my $gcc_devteam_warn = "-DDEBUG_UNUSED"
    110         # -DPEDANTIC complements -pedantic and is meant to mask code that
    111         # is not strictly standard-compliant and/or implementation-specific,
    112         # e.g. inline assembly, disregards to alignment requirements, such
    113         # that -pedantic would complain about. Incidentally -DPEDANTIC has
    114         # to be used even in sanitized builds, because sanitizer too is
    115         # supposed to and does take notice of non-standard behaviour. Then
    116         # -pedantic with pre-C9x compiler would also complain about 'long
    117         # long' not being supported. As 64-bit algorithms are common now,
    118         # it grew impossible to resolve this without sizeable additional
    119         # code, so we just tell compiler to be pedantic about everything
    120         # but 'long long' type.
    121         . " -DPEDANTIC -pedantic -Wno-long-long"
    122         . " -Wall"
    123         . " -Wextra"
    124         . " -Wno-unused-parameter"
    125         . " -Wno-missing-field-initializers"
    126         . " -Wsign-compare"
    127         . " -Wmissing-prototypes"
    128         . " -Wshadow"
    129         . " -Wformat"
    130         . " -Wtype-limits"
    131         . " -Wundef"
    132         . " -Werror"
    133         ;
    134 
    135 # These are used in addition to $gcc_devteam_warn when the compiler is clang.
    136 # TODO(openssl-team): fix problems and investigate if (at least) the
    137 # following warnings can also be enabled:
    138 #       -Wswitch-enum
    139 #       -Wcast-align
    140 #       -Wunreachable-code
    141 #       -Wlanguage-extension-token -- no, we use asm()
    142 #       -Wunused-macros -- no, too tricky for BN and _XOPEN_SOURCE etc
    143 #       -Wextended-offsetof -- no, needed in CMS ASN1 code
    144 my $clang_devteam_warn = ""
    145         . " -Qunused-arguments"
    146         . " -Wno-language-extension-token"
    147         . " -Wno-extended-offsetof"
    148         . " -Wconditional-uninitialized"
    149         . " -Wincompatible-pointer-types-discards-qualifiers"
    150         . " -Wmissing-variable-declarations"
    151         ;
    152 
    153 # This adds backtrace information to the memory leak info.  Is only used
    154 # when crypto-mdebug-backtrace is enabled.
    155 my $memleak_devteam_backtrace = "-rdynamic";
    156 
    157 my $strict_warnings = 0;
    158 
    159 # As for $BSDthreads. Idea is to maintain "collective" set of flags,
    160 # which would cover all BSD flavors. -pthread applies to them all,
    161 # but is treated differently. OpenBSD expands is as -D_POSIX_THREAD
    162 # -lc_r, which is sufficient. FreeBSD 4.x expands it as -lc_r,
    163 # which has to be accompanied by explicit -D_THREAD_SAFE and
    164 # sometimes -D_REENTRANT. FreeBSD 5.x expands it as -lc_r, which
    165 # seems to be sufficient?
    166 our $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";
    167 
    168 #
    169 # API compatibility name to version number mapping.
    170 #
    171 my $maxapi = "1.1.0";           # API for "no-deprecated" builds
    172 my $apitable = {
    173     "1.1.0" => "0x10100000L",
    174     "1.0.0" => "0x10000000L",
    175     "0.9.8" => "0x00908000L",
    176 };
    177 
    178 our %table = ();
    179 our %config = ();
    180 our %withargs = ();
    181 
    182 # Forward declarations ###############################################
    183 
    184 # read_config(filename)
    185 #
    186 # Reads a configuration file and populates %table with the contents
    187 # (which the configuration file places in %targets).
    188 sub read_config;
    189 
    190 # resolve_config(target)
    191 #
    192 # Resolves all the late evaluations, inheritances and so on for the
    193 # chosen target and any target it inherits from.
    194 sub resolve_config;
    195 
    196 
    197 # Information collection #############################################
    198 
    199 # Unified build supports separate build dir
    200 my $srcdir = catdir(absolutedir(dirname($0))); # catdir ensures local syntax
    201 my $blddir = catdir(absolutedir("."));         # catdir ensures local syntax
    202 my $dofile = abs2rel(catfile($srcdir, "util/dofile.pl"));
    203 
    204 my $local_config_envname = 'OPENSSL_LOCAL_CONFIG_DIR';
    205 
    206 $config{sourcedir} = abs2rel($srcdir);
    207 $config{builddir} = abs2rel($blddir);
    208 
    209 # Collect reconfiguration information if needed
    210 my @argvcopy=@ARGV;
    211 
    212 if (grep /^reconf(igure)?$/, @argvcopy) {
    213     if (-f "./configdata.pm") {
    214 	my $file = "./configdata.pm";
    215 	unless (my $return = do $file) {
    216 	    die "couldn't parse $file: $@" if $@;
    217             die "couldn't do $file: $!"    unless defined $return;
    218             die "couldn't run $file"       unless $return;
    219 	}
    220 
    221 	@argvcopy = defined($configdata::config{perlargv}) ?
    222 	    @{$configdata::config{perlargv}} : ();
    223 	die "Incorrect data to reconfigure, please do a normal configuration\n"
    224 	    if (grep(/^reconf/,@argvcopy));
    225 	$ENV{CROSS_COMPILE} = $configdata::config{cross_compile_prefix}
    226 	    if defined($configdata::config{cross_compile_prefix});
    227 	$ENV{CC} = $configdata::config{cc}
    228 	    if defined($configdata::config{cc});
    229 	$ENV{BUILDFILE} = $configdata::config{build_file}
    230 	    if defined($configdata::config{build_file});
    231 	$ENV{$local_config_envname} = $configdata::config{local_config_dir}
    232 	    if defined($configdata::config{local_config_dir});
    233 
    234 	print "Reconfiguring with: ", join(" ",@argvcopy), "\n";
    235 	print "    CROSS_COMPILE = ",$ENV{CROSS_COMPILE},"\n"
    236 	    if $ENV{CROSS_COMPILE};
    237 	print "    CC = ",$ENV{CC},"\n" if $ENV{CC};
    238 	print "    BUILDFILE = ",$ENV{BUILDFILE},"\n" if $ENV{BUILDFILE};
    239 	print "    $local_config_envname = ",$ENV{$local_config_envname},"\n"
    240 	    if $ENV{$local_config_envname};
    241     } else {
    242 	die "Insufficient data to reconfigure, please do a normal configuration\n";
    243     }
    244 }
    245 
    246 $config{perlargv} = [ @argvcopy ];
    247 
    248 # Collect version numbers
    249 $config{version} = "unknown";
    250 $config{version_num} = "unknown";
    251 $config{shlib_version_number} = "unknown";
    252 $config{shlib_version_history} = "unknown";
    253 
    254 collect_information(
    255     collect_from_file(catfile($srcdir,'include/openssl/opensslv.h')),
    256     qr/OPENSSL.VERSION.TEXT.*OpenSSL (\S+) / => sub { $config{version} = $1; },
    257     qr/OPENSSL.VERSION.NUMBER.*(0x\S+)/	     => sub { $config{version_num}=$1 },
    258     qr/SHLIB_VERSION_NUMBER *"([^"]+)"/	     => sub { $config{shlib_version_number}=$1 },
    259     qr/SHLIB_VERSION_HISTORY *"([^"]*)"/     => sub { $config{shlib_version_history}=$1 }
    260     );
    261 if ($config{shlib_version_history} ne "") { $config{shlib_version_history} .= ":"; }
    262 
    263 ($config{major}, $config{minor})
    264     = ($config{version} =~ /^([0-9]+)\.([0-9\.]+)/);
    265 ($config{shlib_major}, $config{shlib_minor})
    266     = ($config{shlib_version_number} =~ /^([0-9]+)\.([0-9\.]+)/);
    267 die "erroneous version information in opensslv.h: ",
    268     "$config{major}, $config{minor}, $config{shlib_major}, $config{shlib_minor}\n"
    269     if ($config{major} eq "" || $config{minor} eq ""
    270 	|| $config{shlib_major} eq "" ||  $config{shlib_minor} eq "");
    271 
    272 # Collect target configurations
    273 
    274 my $pattern = catfile(dirname($0), "Configurations", "*.conf");
    275 foreach (sort glob($pattern)) {
    276     &read_config($_);
    277 }
    278 
    279 if (defined $ENV{$local_config_envname}) {
    280     if ($^O eq 'VMS') {
    281         # VMS environment variables are logical names,
    282         # which can be used as is
    283         $pattern = $local_config_envname . ':' . '*.conf';
    284     } else {
    285         $pattern = catfile($ENV{$local_config_envname}, '*.conf');
    286     }
    287 
    288     foreach (sort glob($pattern)) {
    289         &read_config($_);
    290     }
    291 }
    292 
    293 
    294 print "Configuring OpenSSL version $config{version} ($config{version_num})\n";
    295 
    296 $config{prefix}="";
    297 $config{openssldir}="";
    298 $config{processor}="";
    299 $config{libdir}="";
    300 $config{cross_compile_prefix}="";
    301 $config{fipslibdir}="/usr/local/ssl/fips-2.0/lib/";
    302 my $nofipscanistercheck=0;
    303 $config{baseaddr}="0xFB00000";
    304 my $auto_threads=1;    # enable threads automatically? true by default
    305 my $default_ranlib;
    306 $config{fips}=0;
    307 
    308 # Top level directories to build
    309 $config{dirs} = [ "crypto", "ssl", "engines", "apps", "test", "util", "tools", "fuzz" ];
    310 # crypto/ subdirectories to build
    311 $config{sdirs} = [
    312     "objects",
    313     "md2", "md4", "md5", "sha", "mdc2", "hmac", "ripemd", "whrlpool", "poly1305", "blake2",
    314     "des", "aes", "rc2", "rc4", "rc5", "idea", "bf", "cast", "camellia", "seed", "chacha", "modes",
    315     "bn", "ec", "rsa", "dsa", "dh", "dso", "engine",
    316     "buffer", "bio", "stack", "lhash", "rand", "err",
    317     "evp", "asn1", "pem", "x509", "x509v3", "conf", "txt_db", "pkcs7", "pkcs12", "comp", "ocsp", "ui",
    318     "cms", "ts", "srp", "cmac", "ct", "async", "kdf"
    319     ];
    320 
    321 # Known TLS and DTLS protocols
    322 my @tls = qw(ssl3 tls1 tls1_1 tls1_2);
    323 my @dtls = qw(dtls1 dtls1_2);
    324 
    325 # Explicitly known options that are possible to disable.  They can
    326 # be regexps, and will be used like this: /^no-${option}$/
    327 # For developers: keep it sorted alphabetically
    328 
    329 my @disablables = (
    330     "afalgeng",
    331     "asan",
    332     "asm",
    333     "async",
    334     "autoalginit",
    335     "autoerrinit",
    336     "bf",
    337     "blake2",
    338     "camellia",
    339     "capieng",
    340     "cast",
    341     "chacha",
    342     "cmac",
    343     "cms",
    344     "comp",
    345     "crypto-mdebug",
    346     "crypto-mdebug-backtrace",
    347     "ct",
    348     "deprecated",
    349     "des",
    350     "dgram",
    351     "dh",
    352     "dsa",
    353     "dso",
    354     "dtls",
    355     "dynamic-engine",
    356     "ec",
    357     "ec2m",
    358     "ecdh",
    359     "ecdsa",
    360     "ec_nistp_64_gcc_128",
    361     "egd",
    362     "engine",
    363     "err",
    364     "filenames",
    365     "fuzz-libfuzzer",
    366     "fuzz-afl",
    367     "gost",
    368     "heartbeats",
    369     "hw(-.+)?",
    370     "idea",
    371     "makedepend",
    372     "md2",
    373     "md4",
    374     "mdc2",
    375     "msan",
    376     "multiblock",
    377     "nextprotoneg",
    378     "ocb",
    379     "ocsp",
    380     "pic",
    381     "poly1305",
    382     "posix-io",
    383     "psk",
    384     "rc2",
    385     "rc4",
    386     "rc5",
    387     "rdrand",
    388     "rfc3779",
    389     "rmd160",
    390     "scrypt",
    391     "sctp",
    392     "seed",
    393     "shared",
    394     "sock",
    395     "srp",
    396     "srtp",
    397     "sse2",
    398     "ssl",
    399     "ssl-trace",
    400     "static-engine",
    401     "stdio",
    402     "threads",
    403     "tls",
    404     "ts",
    405     "ubsan",
    406     "ui",
    407     "unit-test",
    408     "whirlpool",
    409     "weak-ssl-ciphers",
    410     "zlib",
    411     "zlib-dynamic",
    412     );
    413 foreach my $proto ((@tls, @dtls))
    414 	{
    415 	push(@disablables, $proto);
    416 	push(@disablables, "$proto-method");
    417 	}
    418 
    419 my %deprecated_disablables = (
    420     "ssl2" => undef,
    421     "buf-freelists" => undef,
    422     "ripemd" => "rmd160"
    423     );
    424 
    425 # All of the following is disabled by default (RC5 was enabled before 0.9.8):
    426 
    427 our %disabled = ( # "what"         => "comment"
    428                   "asan"		=> "default",
    429 		  "crypto-mdebug"       => "default",
    430 		  "crypto-mdebug-backtrace" => "default",
    431 		  "ec_nistp_64_gcc_128" => "default",
    432 		  "egd"                 => "default",
    433 		  "fuzz-libfuzzer"	=> "default",
    434 		  "fuzz-afl"		=> "default",
    435 		  "heartbeats"          => "default",
    436 		  "md2"                 => "default",
    437                   "msan"                => "default",
    438 		  "rc5"                 => "default",
    439 		  "sctp"                => "default",
    440 		  "ssl-trace"           => "default",
    441 		  "ssl3"                => "default",
    442 		  "ssl3-method"         => "default",
    443                   "ubsan"		=> "default",
    444 		  "unit-test"           => "default",
    445 		  "weak-ssl-ciphers"    => "default",
    446 		  "zlib"                => "default",
    447 		  "zlib-dynamic"        => "default",
    448 		);
    449 
    450 # Note: => pair form used for aesthetics, not to truly make a hash table
    451 my @disable_cascades = (
    452     # "what"		=> [ "cascade", ... ]
    453     sub { $config{processor} eq "386" }
    454 			=> [ "sse2" ],
    455     "ssl"		=> [ "ssl3" ],
    456     "ssl3-method"	=> [ "ssl3" ],
    457     "zlib"		=> [ "zlib-dynamic" ],
    458     "des"		=> [ "mdc2" ],
    459     "ec"		=> [ "ecdsa", "ecdh" ],
    460 
    461     "dgram"		=> [ "dtls", "sctp" ],
    462     "sock"		=> [ "dgram" ],
    463     "dtls"		=> [ @dtls ],
    464     sub { 0 == scalar grep { !$disabled{$_} } @dtls }
    465 			=> [ "dtls" ],
    466 
    467     "tls"		=> [ @tls ],
    468     sub { 0 == scalar grep { !$disabled{$_} } @tls }
    469 			=> [ "tls" ],
    470 
    471     "crypto-mdebug"     => [ "crypto-mdebug-backtrace" ],
    472 
    473     # Without DSO, we can't load dynamic engines, so don't build them dynamic
    474     "dso"               => [ "dynamic-engine" ],
    475 
    476     # Without position independent code, there can be no shared libraries or DSOs
    477     "pic"               => [ "shared" ],
    478     "shared"            => [ "dynamic-engine" ],
    479     "engine"            => [ "afalgeng" ],
    480 
    481     # no-autoalginit is only useful when building non-shared
    482     "autoalginit"       => [ "shared", "apps" ],
    483 
    484     "stdio"             => [ "apps", "capieng", "egd" ],
    485     "apps"              => [ "tests" ],
    486     "comp"		=> [ "zlib" ],
    487     sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
    488 
    489     sub { !$disabled{"msan"} } => [ "asm" ],
    490     );
    491 
    492 # Avoid protocol support holes.  Also disable all versions below N, if version
    493 # N is disabled while N+1 is enabled.
    494 #
    495 my @list = (reverse @tls);
    496 while ((my $first, my $second) = (shift @list, shift @list)) {
    497     last unless @list;
    498     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
    499 			      => [ @list ] );
    500     unshift @list, $second;
    501 }
    502 my @list = (reverse @dtls);
    503 while ((my $first, my $second) = (shift @list, shift @list)) {
    504     last unless @list;
    505     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
    506 			      => [ @list ] );
    507     unshift @list, $second;
    508 }
    509 
    510 # Explicit "no-..." options will be collected in %disabled along with the defaults.
    511 # To remove something from %disabled, use "enable-foo".
    512 # For symmetry, "disable-foo" is a synonym for "no-foo".
    513 
    514 &usage if ($#ARGV < 0);
    515 
    516 my $user_cflags="";
    517 my @user_defines=();
    518 $config{openssl_api_defines}=[];
    519 $config{openssl_algorithm_defines}=[];
    520 $config{openssl_thread_defines}=[];
    521 $config{openssl_sys_defines}=[];
    522 $config{openssl_other_defines}=[];
    523 my $libs="";
    524 my $target="";
    525 $config{options}="";
    526 $config{build_type} = "release";
    527 
    528 my %unsupported_options = ();
    529 my %deprecated_options = ();
    530 while (@argvcopy)
    531 	{
    532 	$_ = shift @argvcopy;
    533 	# VMS is a case insensitive environment, and depending on settings
    534 	# out of our control, we may receive options uppercased.  Let's
    535 	# downcase at least the part before any equal sign.
    536 	if ($^O eq "VMS")
    537 		{
    538 		s/^([^=]*)/lc($1)/e;
    539 		}
    540 	s /^-no-/no-/; # some people just can't read the instructions
    541 
    542 	# rewrite some options in "enable-..." form
    543 	s /^-?-?shared$/enable-shared/;
    544 	s /^sctp$/enable-sctp/;
    545 	s /^threads$/enable-threads/;
    546 	s /^zlib$/enable-zlib/;
    547 	s /^zlib-dynamic$/enable-zlib-dynamic/;
    548 
    549         if (/^(no|disable|enable)-(.+)$/)
    550                 {
    551                 my $word = $2;
    552                 if (!exists $deprecated_disablables{$word}
    553                         && !grep { $word =~ /^${_}$/ } @disablables)
    554                         {
    555                         $unsupported_options{$_} = 1;
    556                         next;
    557                         }
    558                 }
    559         if (/^no-(.+)$/ || /^disable-(.+)$/)
    560                 {
    561                 foreach my $proto ((@tls, @dtls))
    562                         {
    563                         if ($1 eq "$proto-method")
    564                                 {
    565                                 $disabled{"$proto"} = "option($proto-method)";
    566                                 last;
    567                                 }
    568                         }
    569                 if ($1 eq "dtls")
    570                         {
    571                         foreach my $proto (@dtls)
    572                                 {
    573                                 $disabled{$proto} = "option(dtls)";
    574                                 }
    575                         $disabled{"dtls"} = "option(dtls)";
    576                         }
    577                 elsif ($1 eq "ssl")
    578                         {
    579                         # Last one of its kind
    580                         $disabled{"ssl3"} = "option(ssl)";
    581                         }
    582                 elsif ($1 eq "tls")
    583                         {
    584                         # XXX: Tests will fail if all SSL/TLS
    585                         # protocols are disabled.
    586                         foreach my $proto (@tls)
    587                                 {
    588                                 $disabled{$proto} = "option(tls)";
    589                                 }
    590                         }
    591                 elsif ($1 eq "static-engine")
    592                         {
    593                         delete $disabled{"dynamic-engine"};
    594                         }
    595                 elsif ($1 eq "dynamic-engine")
    596                         {
    597                         $disabled{"dynamic-engine"} = "option";
    598                         }
    599                 elsif (exists $deprecated_disablables{$1})
    600                         {
    601                         $deprecated_options{$_} = 1;
    602                         if (defined $deprecated_disablables{$1})
    603                                 {
    604                                 $disabled{$deprecated_disablables{$1}} = "option";
    605                                 }
    606                         }
    607                 else
    608                         {
    609                         $disabled{$1} = "option";
    610                         }
    611 		# No longer an automatic choice
    612 		$auto_threads = 0 if ($1 eq "threads");
    613 		}
    614 	elsif (/^enable-(.+)$/)
    615 		{
    616                 if ($1 eq "static-engine")
    617                         {
    618                         $disabled{"dynamic-engine"} = "option";
    619                         }
    620                 elsif ($1 eq "dynamic-engine")
    621                         {
    622                         delete $disabled{"dynamic-engine"};
    623                         }
    624                 elsif ($1 eq "zlib-dynamic")
    625                         {
    626                         delete $disabled{"zlib"};
    627                         }
    628 		my $algo = $1;
    629 		delete $disabled{$algo};
    630 
    631 		# No longer an automatic choice
    632 		$auto_threads = 0 if ($1 eq "threads");
    633 		}
    634 	elsif (/^--strict-warnings$/)
    635 		{
    636 		$strict_warnings = 1;
    637 		}
    638 	elsif (/^--debug$/)
    639 		{
    640 		$config{build_type} = "debug";
    641 		}
    642 	elsif (/^--release$/)
    643 		{
    644 		$config{build_type} = "release";
    645 		}
    646 	elsif (/^386$/)
    647 		{ $config{processor}=386; }
    648 	elsif (/^fips$/)
    649 		{
    650 		$config{fips}=1;
    651 		}
    652 	elsif (/^rsaref$/)
    653 		{
    654 		# No RSAref support any more since it's not needed.
    655 		# The check for the option is there so scripts aren't
    656 		# broken
    657 		}
    658 	elsif (/^nofipscanistercheck$/)
    659 		{
    660 		$config{fips} = 1;
    661 		$nofipscanistercheck = 1;
    662 		}
    663 	elsif (/^[-+]/)
    664 		{
    665 		if (/^--prefix=(.*)$/)
    666 			{
    667 			$config{prefix}=$1;
    668 			die "Directory given with --prefix MUST be absolute\n"
    669 				unless file_name_is_absolute($config{prefix});
    670 			}
    671 		elsif (/^--api=(.*)$/)
    672 			{
    673 			$config{api}=$1;
    674 			}
    675 		elsif (/^--libdir=(.*)$/)
    676 			{
    677 			$config{libdir}=$1;
    678 			}
    679 		elsif (/^--openssldir=(.*)$/)
    680 			{
    681 			$config{openssldir}=$1;
    682 			}
    683 		elsif (/^--with-zlib-lib=(.*)$/)
    684 			{
    685 			$withargs{zlib_lib}=$1;
    686 			}
    687 		elsif (/^--with-zlib-include=(.*)$/)
    688 			{
    689 			$withargs{zlib_include}=$1;
    690 			}
    691 		elsif (/^--with-fuzzer-lib=(.*)$/)
    692 			{
    693 			$withargs{fuzzer_lib}=$1;
    694 			}
    695 		elsif (/^--with-fuzzer-include=(.*)$/)
    696 			{
    697 			$withargs{fuzzer_include}=$1;
    698 			}
    699 		elsif (/^--with-fipslibdir=(.*)$/)
    700 			{
    701 			$config{fipslibdir}="$1/";
    702 			}
    703 		elsif (/^--with-baseaddr=(.*)$/)
    704 			{
    705 			$config{baseaddr}="$1";
    706 			}
    707 		elsif (/^--cross-compile-prefix=(.*)$/)
    708 			{
    709 			$config{cross_compile_prefix}=$1;
    710 			}
    711 		elsif (/^--config=(.*)$/)
    712 			{
    713 			read_config $1;
    714 			}
    715 		elsif (/^-[lL](.*)$/ or /^-Wl,/)
    716 			{
    717 			$libs.=$_." ";
    718 			}
    719 		elsif (/^-rpath$/ or /^-R$/)
    720 			# -rpath is the OSF1 rpath flag
    721 			# -R is the old Solaris rpath flag
    722 			{
    723 			my $rpath = shift(@argvcopy) || "";
    724 			$rpath .= " " if $rpath ne "";
    725 			$libs.=$_." ".$rpath;
    726 			}
    727 		elsif (/^-static$/)
    728 			{
    729 			$libs.=$_." ";
    730 			$disabled{"dso"} = "forced";
    731 			$disabled{"pic"} = "forced";
    732 			$disabled{"shared"} = "forced";
    733 			$disabled{"threads"} = "forced";
    734 			}
    735 		elsif (/^-D(.*)$/)
    736 			{
    737 			push @user_defines, $1;
    738 			}
    739 		else	# common if (/^[-+]/), just pass down...
    740 			{
    741 			$_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
    742 			$user_cflags.=" ".$_;
    743 			}
    744 		}
    745 	else
    746 		{
    747 		die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
    748 		$target=$_;
    749 		}
    750 	unless ($_ eq $target || /^no-/ || /^disable-/)
    751 		{
    752 		# "no-..." follows later after implied disactivations
    753 		# have been derived.  (Don't take this too seriously,
    754 		# we really only write OPTIONS to the Makefile out of
    755 		# nostalgia.)
    756 
    757 		if ($config{options} eq "")
    758 			{ $config{options} = $_; }
    759 		else
    760 			{ $config{options} .= " ".$_; }
    761 		}
    762 	}
    763 
    764 if (defined($config{api}) && !exists $apitable->{$config{api}}) {
    765 	die "***** Unsupported api compatibility level: $config{api}\n",
    766 }
    767 
    768 if (keys %deprecated_options)
    769 	{
    770 	warn "***** Deprecated options: ",
    771 		join(", ", keys %deprecated_options), "\n";
    772 	}
    773 if (keys %unsupported_options)
    774 	{
    775 	die "***** Unsupported options: ",
    776 		join(", ", keys %unsupported_options), "\n";
    777 	}
    778 
    779 if ($libs =~ /(^|\s)-Wl,-rpath,/
    780     && !$disabled{shared}
    781     && !($disabled{asan} && $disabled{msan} && $disabled{ubsan})) {
    782     die "***** Cannot simultaneously use -rpath, shared libraries, and\n",
    783 	"***** any of asan, msan or ubsan\n";
    784 }
    785 
    786 if ($config{fips})
    787 	{
    788 	delete $disabled{"shared"} if ($disabled{"shared"} =~ /^default/);
    789 	}
    790 else
    791 	{
    792 	@{$config{dirs}} = grep !/^fips$/, @{$config{dirs}};
    793 	}
    794 
    795 my @tocheckfor = (keys %disabled);
    796 while (@tocheckfor) {
    797     my %new_tocheckfor = ();
    798     my @cascade_copy = (@disable_cascades);
    799     while (@cascade_copy) {
    800 	my ($test, $descendents) = (shift @cascade_copy, shift @cascade_copy);
    801 	if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
    802 	    foreach(grep { !defined($disabled{$_}) } @$descendents) {
    803 		$new_tocheckfor{$_} = 1; $disabled{$_} = "forced";
    804 	    }
    805 	}
    806     }
    807     @tocheckfor = (keys %new_tocheckfor);
    808 }
    809 
    810 our $die = sub { die @_; };
    811 if ($target eq "TABLE") {
    812     local $die = sub { warn @_; };
    813     foreach (sort keys %table) {
    814 	print_table_entry($_, "TABLE");
    815     }
    816     exit 0;
    817 }
    818 
    819 if ($target eq "LIST") {
    820     foreach (sort keys %table) {
    821 	print $_,"\n" unless $table{$_}->{template};
    822     }
    823     exit 0;
    824 }
    825 
    826 if ($target eq "HASH") {
    827     local $die = sub { warn @_; };
    828     print "%table = (\n";
    829     foreach (sort keys %table) {
    830 	print_table_entry($_, "HASH");
    831     }
    832     exit 0;
    833 }
    834 
    835 # Backward compatibility?
    836 if ($target =~ m/^CygWin32(-.*)$/) {
    837     $target = "Cygwin".$1;
    838 }
    839 
    840 foreach (sort (keys %disabled))
    841 	{
    842 	$config{options} .= " no-$_";
    843 
    844 	printf "    no-%-12s %-10s", $_, "[$disabled{$_}]";
    845 
    846 	if (/^dso$/)
    847 		{ }
    848 	elsif (/^threads$/)
    849 		{ }
    850 	elsif (/^shared$/)
    851 		{ }
    852 	elsif (/^pic$/)
    853 		{ }
    854 	elsif (/^zlib$/)
    855 		{ }
    856 	elsif (/^dynamic-engine$/)
    857 		{ }
    858 	elsif (/^makedepend$/)
    859 		{ }
    860 	elsif (/^zlib-dynamic$/)
    861 		{ }
    862 	elsif (/^sse2$/)
    863 		{ }
    864 	elsif (/^engine$/)
    865 		{
    866 		@{$config{dirs}} = grep !/^engines$/, @{$config{dirs}};
    867 		@{$config{sdirs}} = grep !/^engine$/, @{$config{sdirs}};
    868 		push @{$config{openssl_other_defines}}, "OPENSSL_NO_ENGINE";
    869 		print " OPENSSL_NO_ENGINE (skip engines)";
    870 		}
    871 	else
    872 		{
    873 		my ($WHAT, $what);
    874 
    875 		($WHAT = $what = $_) =~ tr/[\-a-z]/[_A-Z]/;
    876 
    877 		# Fix up C macro end names
    878 		$WHAT = "RMD160" if $what eq "ripemd";
    879 
    880 		# fix-up crypto/directory name(s)
    881 		$what = "ripemd" if $what eq "rmd160";
    882 		$what = "whrlpool" if $what eq "whirlpool";
    883 
    884 		if ($what ne "async" && $what ne "err"
    885 		    && grep { $_ eq $what } @{$config{sdirs}})
    886 			{
    887 			push @{$config{openssl_algorithm_defines}}, "OPENSSL_NO_$WHAT";
    888 			@{$config{sdirs}} = grep { $_ ne $what} @{$config{sdirs}};
    889 
    890 			print " OPENSSL_NO_$WHAT (skip dir)";
    891 			}
    892 		else
    893 			{
    894 			push @{$config{openssl_other_defines}}, "OPENSSL_NO_$WHAT";
    895 			print " OPENSSL_NO_$WHAT";
    896 			}
    897 		}
    898 
    899 	print "\n";
    900 	}
    901 
    902 print "Configuring for $target\n";
    903 
    904 # Support for legacy targets having a name starting with 'debug-'
    905 my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
    906 if ($d) {
    907     $config{build_type} = "debug";
    908 
    909     # If we do not find debug-foo in the table, the target is set to foo.
    910     if (!$table{$target}) {
    911 	$target = $t;
    912     }
    913 }
    914 
    915 &usage if !$table{$target} || $table{$target}->{template};
    916 
    917 $config{target} = $target;
    918 my %target = resolve_config($target);
    919 
    920 my %conf_files = map { $_ => 1 } (@{$target{_conf_fname_int}});
    921 $config{conf_files} = [ sort keys %conf_files ];
    922 %target = ( %{$table{DEFAULTS}}, %target );
    923 
    924 $target{exe_extension}="";
    925 $target{exe_extension}=".exe" if ($config{target} eq "DJGPP"
    926                                   || $config{target} =~ /^(?:Cygwin|mingw)/);
    927 $target{exe_extension}=".pm"  if ($config{target} =~ /vos/);
    928 
    929 ($target{shared_extension_simple}=$target{shared_extension})
    930     =~ s|\.\$\(SHLIB_MAJOR\)\.\$\(SHLIB_MINOR\)||;
    931 $target{dso_extension}=$target{shared_extension_simple};
    932 ($target{shared_import_extension}=$target{shared_extension_simple}.".a")
    933     if ($config{target} =~ /^(?:Cygwin|mingw)/);
    934 
    935 
    936 $config{cross_compile_prefix} = $ENV{'CROSS_COMPILE'}
    937     if $config{cross_compile_prefix} eq "";
    938 
    939 # Allow overriding the names of some tools.  USE WITH CARE
    940 # Note: only Unix cares about HASHBANGPERL...  that explains
    941 # the default string.
    942 $config{perl} =    $ENV{'PERL'}    || ($^O ne "VMS" ? $^X : "perl");
    943 $config{hashbangperl} =
    944     $ENV{'HASHBANGPERL'}           || $ENV{'PERL'}     || "/usr/bin/env perl";
    945 $target{cc} =      $ENV{'CC'}      || $target{cc}      || "cc";
    946 $target{ranlib} =  $ENV{'RANLIB'}  || $target{ranlib}  ||
    947                    (which("$config{cross_compile_prefix}ranlib") ?
    948                           "\$(CROSS_COMPILE)ranlib" : "true");
    949 $target{ar} =      $ENV{'AR'}      || $target{ar}      || "ar";
    950 $target{nm} =      $ENV{'NM'}      || $target{nm}      || "nm";
    951 $target{rc} =
    952     $ENV{'RC'}  || $ENV{'WINDRES'} || $target{rc}      || "windres";
    953 
    954 # Allow overriding the build file name
    955 $target{build_file} = $ENV{BUILDFILE} || $target{build_file} || "Makefile";
    956 
    957 # Cache information necessary for reconfiguration
    958 $config{cc} = $target{cc};
    959 $config{build_file} = $target{build_file};
    960 
    961 # For cflags, lflags, plib_lflags, ex_libs and defines, add the debug_
    962 # or release_ attributes.
    963 # Do it in such a way that no spurious space is appended (hence the grep).
    964 $config{defines} = [];
    965 $config{cflags} = "";
    966 $config{ex_libs} = "";
    967 $config{shared_ldflag} = "";
    968 
    969 # Make sure build_scheme is consistent.
    970 $target{build_scheme} = [ $target{build_scheme} ]
    971     if ref($target{build_scheme}) ne "ARRAY";
    972 
    973 my ($builder, $builder_platform, @builder_opts) =
    974     @{$target{build_scheme}};
    975 
    976 foreach my $checker (($builder_platform."-".$target{build_file}."-checker.pm",
    977                       $builder_platform."-checker.pm")) {
    978     my $checker_path = catfile($srcdir, "Configurations", $checker);
    979     if (-f $checker_path) {
    980         my $fn = $ENV{CONFIGURE_CHECKER_WARN}
    981             ? sub { warn $@; } : sub { die $@; };
    982         if (! do $checker_path) {
    983             if ($@) {
    984                 $fn->($@);
    985             } elsif ($!) {
    986                 $fn->($!);
    987             } else {
    988                 $fn->("The detected tools didn't match the platform\n");
    989             }
    990         }
    991         last;
    992     }
    993 }
    994 
    995 push @{$config{defines}}, "NDEBUG"    if $config{build_type} eq "release";
    996 
    997 if ($target =~ /^mingw/ && `$target{cc} --target-help 2>&1` =~ m/-mno-cygwin/m)
    998 	{
    999 	$config{cflags} .= " -mno-cygwin";
   1000 	$config{shared_ldflag} .= " -mno-cygwin";
   1001 	}
   1002 
   1003 if ($target =~ /linux.*-mips/ && !$disabled{asm} && $user_cflags !~ /-m(ips|arch=)/) {
   1004 	# minimally required architecture flags for assembly modules
   1005 	$config{cflags}="-mips2 $config{cflags}" if ($target =~ /mips32/);
   1006 	$config{cflags}="-mips3 $config{cflags}" if ($target =~ /mips64/);
   1007 }
   1008 
   1009 my $no_shared_warn=0;
   1010 my $no_user_cflags=0;
   1011 my $no_user_defines=0;
   1012 
   1013 # The DSO code currently always implements all functions so that no
   1014 # applications will have to worry about that from a compilation point
   1015 # of view. However, the "method"s may return zero unless that platform
   1016 # has support compiled in for them. Currently each method is enabled
   1017 # by a define "DSO_<name>" ... we translate the "dso_scheme" config
   1018 # string entry into using the following logic;
   1019 if (!$disabled{dso} && $target{dso_scheme} ne "")
   1020 	{
   1021 	$target{dso_scheme} =~ tr/[a-z]/[A-Z]/;
   1022 	if ($target{dso_scheme} eq "DLFCN")
   1023 		{
   1024 		unshift @{$config{defines}}, "DSO_DLFCN", "HAVE_DLFCN_H";
   1025 		}
   1026 	elsif ($target{dso_scheme} eq "DLFCN_NO_H")
   1027 		{
   1028 		unshift @{$config{defines}}, "DSO_DLFCN";
   1029 		}
   1030 	else
   1031 		{
   1032 		unshift @{$config{defines}}, "DSO_$target{dso_scheme}";
   1033 		}
   1034 	}
   1035 
   1036 $config{ex_libs}="$libs$config{ex_libs}" if ($libs ne "");
   1037 
   1038 if ($disabled{asm})
   1039 	{
   1040 	if ($config{fips})
   1041 		{
   1042 		@{$config{defines}} = grep !/^[BL]_ENDIAN$/, @{$config{defines}};
   1043 		@{$target{defines}} = grep !/^[BL]_ENDIAN$/, @{$target{defines}};
   1044 		}
   1045 	}
   1046 
   1047 # If threads aren't disabled, check how possible they are
   1048 unless ($disabled{threads}) {
   1049     if ($auto_threads) {
   1050         # Enabled by default, disable it forcibly if unavailable
   1051         if ($target{thread_scheme} eq "(unknown)") {
   1052             $disabled{threads} = "unavailable";
   1053         }
   1054     } else {
   1055         # The user chose to enable threads explicitly, let's see
   1056         # if there's a chance that's possible
   1057         if ($target{thread_scheme} eq "(unknown)") {
   1058             # If the user asked for "threads" and we don't have internal
   1059             # knowledge how to do it, [s]he is expected to provide any
   1060             # system-dependent compiler options that are necessary.  We
   1061             # can't truly check that the given options are correct, but
   1062             # we expect the user to know what [s]He is doing.
   1063             if ($no_user_cflags && $no_user_defines) {
   1064                 die "You asked for multi-threading support, but didn't\n"
   1065                     ,"provide any system-specific compiler options\n";
   1066             }
   1067         }
   1068     }
   1069 }
   1070 
   1071 # If threads still aren't disabled, add a C macro to ensure the source
   1072 # code knows about it.  Any other flag is taken care of by the configs.
   1073 unless($disabled{threads}) {
   1074     foreach (("defines", "openssl_thread_defines")) {
   1075         push @{$config{$_}}, "OPENSSL_THREADS";
   1076     }
   1077 }
   1078 
   1079 # With "deprecated" disable all deprecated features.
   1080 if (defined($disabled{"deprecated"})) {
   1081         $config{api} = $maxapi;
   1082 }
   1083 
   1084 if ($target{shared_target} eq "")
   1085 	{
   1086 	$no_shared_warn = 1
   1087 	    if ((!$disabled{shared} || !$disabled{"dynamic-engine"})
   1088 		&& !$config{fips});
   1089 	$disabled{shared} = "no-shared-target";
   1090 	$disabled{pic} = $disabled{shared} = $disabled{"dynamic-engine"} =
   1091 	    "no-shared-target";
   1092 	}
   1093 
   1094 if ($disabled{"dynamic-engine"}) {
   1095         push @{$config{defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
   1096         $config{dynamic_engines} = 0;
   1097 } else {
   1098         push @{$config{defines}}, "OPENSSL_NO_STATIC_ENGINE";
   1099         $config{dynamic_engines} = 1;
   1100 }
   1101 
   1102 unless ($disabled{"fuzz-libfuzzer"}) {
   1103     $config{cflags} .= "-fsanitize-coverage=edge,indirect-calls ";
   1104 }
   1105 
   1106 unless ($disabled{asan}) {
   1107     $config{cflags} .= "-fsanitize=address ";
   1108 }
   1109 
   1110 unless ($disabled{ubsan}) {
   1111     # -DPEDANTIC or -fnosanitize=alignment may also be required on some
   1112     # platforms.
   1113     $config{cflags} .= "-fsanitize=undefined -fno-sanitize-recover=all ";
   1114 }
   1115 
   1116 unless ($disabled{msan}) {
   1117   $config{cflags} .= "-fsanitize=memory ";
   1118 }
   1119 
   1120 unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
   1121         && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
   1122     $config{cflags} .= "-fno-omit-frame-pointer -g ";
   1123 }
   1124 #
   1125 # Platform fix-ups
   1126 #
   1127 
   1128 # This saves the build files from having to check
   1129 if ($disabled{pic})
   1130 	{
   1131 	$target{shared_cflag} = $target{shared_ldflag} =
   1132 		$target{shared_rcflag} = "";
   1133 	}
   1134 else
   1135 	{
   1136 	push @{$config{defines}}, "OPENSSL_PIC";
   1137 	}
   1138 
   1139 if ($target{sys_id} ne "")
   1140 	{
   1141 	push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
   1142 	}
   1143 
   1144 unless ($disabled{asm}) {
   1145     $target{cpuid_asm_src}=$table{DEFAULTS}->{cpuid_asm_src} if ($config{processor} eq "386");
   1146     $target{bn_asm_src} =~ s/\w+-gf2m.c// if (defined($disabled{ec2m}));
   1147 
   1148     # bn-586 is the only one implementing bn_*_part_words
   1149     push @{$config{defines}}, "OPENSSL_BN_ASM_PART_WORDS" if ($target{bn_asm_src} =~ /bn-586/);
   1150     push @{$config{defines}}, "OPENSSL_IA32_SSE2" if (!$disabled{sse2} && $target{bn_asm_src} =~ /86/);
   1151 
   1152     push @{$config{defines}}, "OPENSSL_BN_ASM_MONT" if ($target{bn_asm_src} =~ /-mont/);
   1153     push @{$config{defines}}, "OPENSSL_BN_ASM_MONT5" if ($target{bn_asm_src} =~ /-mont5/);
   1154     push @{$config{defines}}, "OPENSSL_BN_ASM_GF2m" if ($target{bn_asm_src} =~ /-gf2m/);
   1155 
   1156     if ($config{fips}) {
   1157 	push @{$config{openssl_other_defines}}, "OPENSSL_FIPS";
   1158     }
   1159 
   1160     if ($target{sha1_asm_src}) {
   1161 	push @{$config{defines}}, "SHA1_ASM"   if ($target{sha1_asm_src} =~ /sx86/ || $target{sha1_asm_src} =~ /sha1/);
   1162 	push @{$config{defines}}, "SHA256_ASM" if ($target{sha1_asm_src} =~ /sha256/);
   1163 	push @{$config{defines}}, "SHA512_ASM" if ($target{sha1_asm_src} =~ /sha512/);
   1164     }
   1165     if ($target{rc4_asm_src} ne $table{DEFAULTS}->{rc4_asm_src}) {
   1166 	push @{$config{defines}}, "RC4_ASM";
   1167     }
   1168     if ($target{md5_asm_src}) {
   1169 	push @{$config{defines}}, "MD5_ASM";
   1170     }
   1171     $target{cast_asm_src}=$table{DEFAULTS}->{cast_asm_src} unless $disabled{pic}; # CAST assembler is not PIC
   1172     if ($target{rmd160_asm_src}) {
   1173 	push @{$config{defines}}, "RMD160_ASM";
   1174     }
   1175     if ($target{aes_asm_src}) {
   1176 	push @{$config{defines}}, "AES_ASM" if ($target{aes_asm_src} =~ m/\baes-/);;
   1177 	# aes-ctr.fake is not a real file, only indication that assembler
   1178 	# module implements AES_ctr32_encrypt...
   1179 	push @{$config{defines}}, "AES_CTR_ASM" if ($target{aes_asm_src} =~ s/\s*aes-ctr\.fake//);
   1180 	# aes-xts.fake indicates presence of AES_xts_[en|de]crypt...
   1181 	push @{$config{defines}}, "AES_XTS_ASM" if ($target{aes_asm_src} =~ s/\s*aes-xts\.fake//);
   1182 	$target{aes_asm_src} =~ s/\s*(vpaes|aesni)-x86\.s//g if ($disabled{sse2});
   1183 	push @{$config{defines}}, "VPAES_ASM" if ($target{aes_asm_src} =~ m/vpaes/);
   1184 	push @{$config{defines}}, "BSAES_ASM" if ($target{aes_asm_src} =~ m/bsaes/);
   1185     }
   1186     if ($target{wp_asm_src} =~ /mmx/) {
   1187         if ($config{processor} eq "386") {
   1188 	    $target{wp_asm_src}=$table{DEFAULTS}->{wp_asm_src};
   1189 	} elsif (!$disabled{"whirlpool"}) {
   1190 	    push @{$config{defines}}, "WHIRLPOOL_ASM";
   1191 	}
   1192     }
   1193     if ($target{modes_asm_src} =~ /ghash-/) {
   1194 	push @{$config{defines}}, "GHASH_ASM";
   1195     }
   1196     if ($target{ec_asm_src} =~ /ecp_nistz256/) {
   1197 	push @{$config{defines}}, "ECP_NISTZ256_ASM";
   1198     }
   1199     if ($target{padlock_asm_src} ne $table{DEFAULTS}->{padlock_asm_src}) {
   1200 	push @{$config{defines}}, "PADLOCK_ASM";
   1201     }
   1202     if ($target{poly1305_asm_src} ne "") {
   1203 	push @{$config{defines}}, "POLY1305_ASM";
   1204     }
   1205 }
   1206 
   1207 my %predefined;
   1208 
   1209 if ($^O ne "VMS") {
   1210     my $cc = "$config{cross_compile_prefix}$target{cc}";
   1211 
   1212     # collect compiler pre-defines from gcc or gcc-alike...
   1213     open(PIPE, "$cc -dM -E -x c /dev/null 2>&1 |");
   1214     while (<PIPE>) {
   1215 	m/^#define\s+(\w+(?:\(\w+\))?)(?:\s+(.+))?/ or last;
   1216 	$predefined{$1} = $2 // "";
   1217     }
   1218     close(PIPE);
   1219 
   1220     if (!$disabled{makedepend}) {
   1221 	# We know that GNU C version 3 and up as well as all clang
   1222 	# versions support dependency generation, but Xcode did not
   1223 	# handle $cc -M before clang support (but claims __GNUC__ = 3)
   1224 	if (($predefined{__GNUC__} // -1) >= 3
   1225 		&& !($predefined{__APPLE_CC__} && !$predefined{__clang__})) {
   1226 	    $config{makedepprog} = $cc;
   1227 	} else {
   1228 	    $config{makedepprog} = which('makedepend');
   1229 	    $disabled{makedepend} = "unavailable" unless $config{makedepprog};
   1230 	}
   1231     }
   1232 }
   1233 
   1234 
   1235 
   1236 # Deal with bn_ops ###################################################
   1237 
   1238 $config{bn_ll}			=0;
   1239 $config{export_var_as_fn}	=0;
   1240 my $def_int="unsigned int";
   1241 $config{rc4_int}		=$def_int;
   1242 ($config{b64l},$config{b64},$config{b32})=(0,0,1);
   1243 
   1244 my $count = 0;
   1245 foreach (sort split(/\s+/,$target{bn_ops})) {
   1246     $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
   1247     $config{export_var_as_fn}=1                 if $_ eq 'EXPORT_VAR_AS_FN';
   1248     $config{bn_ll}=1				if $_ eq 'BN_LLONG';
   1249     $config{rc4_int}="unsigned char"		if $_ eq 'RC4_CHAR';
   1250     ($config{b64l},$config{b64},$config{b32})
   1251 	=(0,1,0)				if $_ eq 'SIXTY_FOUR_BIT';
   1252     ($config{b64l},$config{b64},$config{b32})
   1253 	=(1,0,0)				if $_ eq 'SIXTY_FOUR_BIT_LONG';
   1254     ($config{b64l},$config{b64},$config{b32})
   1255 	=(0,0,1)				if $_ eq 'THIRTY_TWO_BIT';
   1256 }
   1257 die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
   1258     if $count > 1;
   1259 
   1260 
   1261 # Hack cflags for better warnings (dev option) #######################
   1262 
   1263 # "Stringify" the C flags string.  This permits it to be made part of a string
   1264 # and works as well on command lines.
   1265 $config{cflags} =~ s/([\\\"])/\\$1/g;
   1266 
   1267 if (defined($config{api})) {
   1268     $config{openssl_api_defines} = [ "OPENSSL_MIN_API=".$apitable->{$config{api}} ];
   1269     my $apiflag = sprintf("OPENSSL_API_COMPAT=%s", $apitable->{$config{api}});
   1270     push @{$config{defines}}, $apiflag;
   1271 }
   1272 
   1273 if ($strict_warnings)
   1274 	{
   1275 	my $wopt;
   1276 	die "ERROR --strict-warnings requires gcc or gcc-alike"
   1277             unless defined($predefined{__GNUC__});
   1278 	foreach $wopt (split /\s+/, $gcc_devteam_warn)
   1279 		{
   1280 		$config{cflags} .= " $wopt" unless ($config{cflags} =~ /(?:^|\s)$wopt(?:\s|$)/)
   1281 		}
   1282 	if (defined($predefined{__clang__}))
   1283 		{
   1284 		foreach $wopt (split /\s+/, $clang_devteam_warn)
   1285 			{
   1286 			$config{cflags} .= " $wopt" unless ($config{cflags} =~ /(?:^|\s)$wopt(?:\s|$)/)
   1287 			}
   1288 		}
   1289 	}
   1290 
   1291 unless ($disabled{"crypto-mdebug-backtrace"})
   1292 	{
   1293 	foreach my $wopt (split /\s+/, $memleak_devteam_backtrace)
   1294 		{
   1295 		$config{cflags} .= " $wopt" unless ($config{cflags} =~ /(?:^|\s)$wopt(?:\s|$)/)
   1296 		}
   1297 	if ($target =~ /^BSD-/)
   1298 		{
   1299 		$config{ex_libs} .= " -lexecinfo";
   1300 		}
   1301 	}
   1302 
   1303 if ($user_cflags ne "") { $config{cflags}="$config{cflags}$user_cflags"; }
   1304 else                    { $no_user_cflags=1;  }
   1305 if (@user_defines) { $config{defines}=[ @{$config{defines}}, @user_defines ]; }
   1306 else               { $no_user_defines=1;    }
   1307 
   1308 # ALL MODIFICATIONS TO %config and %target MUST BE DONE FROM HERE ON
   1309 
   1310 unless ($disabled{afalgeng}) {
   1311     $config{afalgeng}="";
   1312     if ($target =~ m/^linux/) {
   1313         my $minver = 4*10000 + 1*100 + 0;
   1314         if ($config{cross_compile_prefix} eq "") {
   1315             my $verstr = `uname -r`;
   1316             my ($ma, $mi1, $mi2) = split("\\.", $verstr);
   1317             ($mi2) = $mi2 =~ /(\d+)/;
   1318             my $ver = $ma*10000 + $mi1*100 + $mi2;
   1319             if ($ver < $minver) {
   1320                 $disabled{afalgeng} = "too-old-kernel";
   1321             } else {
   1322                 push @{$config{engdirs}}, "afalg";
   1323             }
   1324         } else {
   1325             $disabled{afalgeng} = "cross-compiling";
   1326         }
   1327     } else {
   1328         $disabled{afalgeng}  = "not-linux";
   1329     }
   1330 }
   1331 
   1332 push @{$config{openssl_other_defines}}, "OPENSSL_NO_AFALGENG" if ($disabled{afalgeng});
   1333 
   1334 # If we use the unified build, collect information from build.info files
   1335 my %unified_info = ();
   1336 
   1337 my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
   1338 if ($builder eq "unified") {
   1339     use with_fallback qw(Text::Template);
   1340 
   1341     sub cleandir {
   1342         my $base = shift;
   1343         my $dir = shift;
   1344         my $relativeto = shift || ".";
   1345 
   1346         $dir = catdir($base,$dir) unless isabsolute($dir);
   1347 
   1348         # Make sure the directories we're building in exists
   1349         mkpath($dir);
   1350 
   1351         my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
   1352         #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
   1353         return $res;
   1354     }
   1355 
   1356     sub cleanfile {
   1357         my $base = shift;
   1358         my $file = shift;
   1359         my $relativeto = shift || ".";
   1360 
   1361         $file = catfile($base,$file) unless isabsolute($file);
   1362 
   1363         my $d = dirname($file);
   1364         my $f = basename($file);
   1365 
   1366         # Make sure the directories we're building in exists
   1367         mkpath($d);
   1368 
   1369         my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
   1370         #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
   1371         return $res;
   1372     }
   1373 
   1374     # Store the name of the template file we will build the build file from
   1375     # in %config.  This may be useful for the build file itself.
   1376     my @build_file_template_names =
   1377 	( $builder_platform."-".$target{build_file}.".tmpl",
   1378 	  $target{build_file}.".tmpl" );
   1379     my @build_file_templates = ();
   1380 
   1381     # First, look in the user provided directory, if given
   1382     if (defined $ENV{$local_config_envname}) {
   1383 	@build_file_templates =
   1384 	    map {
   1385 		if ($^O eq 'VMS') {
   1386 		    # VMS environment variables are logical names,
   1387 		    # which can be used as is
   1388 		    $local_config_envname . ':' . $_;
   1389 		} else {
   1390 		    catfile($ENV{$local_config_envname}, $_);
   1391 		}
   1392 	    }
   1393 	    @build_file_template_names;
   1394     }
   1395     # Then, look in our standard directory
   1396     push @build_file_templates,
   1397 	( map { cleanfile($srcdir, catfile("Configurations", $_), $blddir) }
   1398 	  @build_file_template_names );
   1399 
   1400     my $build_file_template;
   1401     for $_ (@build_file_templates) {
   1402 	$build_file_template = $_;
   1403         last if -f $build_file_template;
   1404 
   1405         $build_file_template = undef;
   1406     }
   1407     if (!defined $build_file_template) {
   1408 	die "*** Couldn't find any of:\n", join("\n", @build_file_templates), "\n";
   1409     }
   1410     $config{build_file_templates}
   1411       = [ $build_file_template,
   1412           cleanfile($srcdir, catfile("Configurations", "common.tmpl"),
   1413                     $blddir) ];
   1414 
   1415     my @build_infos = ( [ ".", "build.info" ] );
   1416     foreach (@{$config{dirs}}) {
   1417         push @build_infos, [ $_, "build.info" ]
   1418             if (-f catfile($srcdir, $_, "build.info"));
   1419     }
   1420     foreach (@{$config{sdirs}}) {
   1421         push @build_infos, [ catdir("crypto", $_), "build.info" ]
   1422             if (-f catfile($srcdir, "crypto", $_, "build.info"));
   1423     }
   1424     foreach (@{$config{engdirs}}) {
   1425         push @build_infos, [ catdir("engines", $_), "build.info" ]
   1426             if (-f catfile($srcdir, "engines", $_, "build.info"));
   1427     }
   1428 
   1429     $config{build_infos} = [ ];
   1430 
   1431     foreach (@build_infos) {
   1432         my $sourced = catdir($srcdir, $_->[0]);
   1433         my $buildd = catdir($blddir, $_->[0]);
   1434 
   1435         mkpath($buildd);
   1436 
   1437         my $f = $_->[1];
   1438         # The basic things we're trying to build
   1439         my @programs = ();
   1440         my @programs_install = ();
   1441         my @libraries = ();
   1442         my @libraries_install = ();
   1443         my @engines = ();
   1444         my @engines_install = ();
   1445         my @scripts = ();
   1446         my @scripts_install = ();
   1447         my @extra = ();
   1448         my @overrides = ();
   1449         my @intermediates = ();
   1450         my @rawlines = ();
   1451 
   1452         my %ordinals = ();
   1453         my %sources = ();
   1454         my %shared_sources = ();
   1455         my %includes = ();
   1456         my %depends = ();
   1457         my %renames = ();
   1458         my %sharednames = ();
   1459         my %generate = ();
   1460 
   1461         # We want to detect configdata.pm in the source tree, so we
   1462         # don't use it if the build tree is different.
   1463         my $src_configdata = cleanfile($srcdir, "configdata.pm", $blddir);
   1464 
   1465         push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
   1466         my $template =
   1467             Text::Template->new(TYPE => 'FILE',
   1468                                 SOURCE => catfile($sourced, $f),
   1469                                 PREPEND => qq{use lib "$FindBin::Bin/util/perl";});
   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, $_, $blddir);
   1767 
   1768                 # If it isn't in the source tree, we assume it's generated
   1769                 # in the build tree
   1770                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
   1771                     $s = cleanfile($buildd, $_, $blddir);
   1772                 }
   1773                 # We recognise C and asm files
   1774                 if ($s =~ /\.[csS]\b$/) {
   1775                     (my $o = $_) =~ s/\.[csS]\b$/.o/;
   1776                     $o = cleanfile($buildd, $o, $blddir);
   1777                     $unified_info{sources}->{$ddest}->{$o} = 1;
   1778                     $unified_info{sources}->{$o}->{$s} = 1;
   1779                 } else {
   1780                     $unified_info{sources}->{$ddest}->{$s} = 1;
   1781                 }
   1782             }
   1783         }
   1784 
   1785         foreach (keys %shared_sources) {
   1786             my $dest = $_;
   1787             my $ddest = cleanfile($buildd, $_, $blddir);
   1788             if ($unified_info{rename}->{$ddest}) {
   1789                 $ddest = $unified_info{rename}->{$ddest};
   1790             }
   1791             foreach (@{$shared_sources{$dest}}) {
   1792                 my $s = cleanfile($sourced, $_, $blddir);
   1793 
   1794                 # If it isn't in the source tree, we assume it's generated
   1795                 # in the build tree
   1796                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
   1797                     $s = cleanfile($buildd, $_, $blddir);
   1798                 }
   1799                 # We recognise C and asm files
   1800                 if ($s =~ /\.[csS]\b$/) {
   1801                     (my $o = $_) =~ s/\.[csS]\b$/.o/;
   1802                     $o = cleanfile($buildd, $o, $blddir);
   1803                     $unified_info{shared_sources}->{$ddest}->{$o} = 1;
   1804                     $unified_info{sources}->{$o}->{$s} = 1;
   1805                 } else {
   1806                     die "unrecognised source file type for shared library: $s\n";
   1807                 }
   1808             }
   1809         }
   1810 
   1811         foreach (keys %generate) {
   1812             my $dest = $_;
   1813             my $ddest = cleanfile($buildd, $_, $blddir);
   1814             if ($unified_info{rename}->{$ddest}) {
   1815                 $ddest = $unified_info{rename}->{$ddest};
   1816             }
   1817             die "more than one generator for $dest: "
   1818                     ,join(" ", @{$generate{$_}}),"\n"
   1819                     if scalar @{$generate{$_}} > 1;
   1820             my @generator = split /\s+/, $generate{$dest}->[0];
   1821             $generator[0] = cleanfile($sourced, $generator[0], $blddir),
   1822             $unified_info{generate}->{$ddest} = [ @generator ];
   1823         }
   1824 
   1825         foreach (keys %depends) {
   1826             my $dest = $_;
   1827             my $ddest = $dest eq "" ? "" : cleanfile($sourced, $_, $blddir);
   1828 
   1829             # If the destination doesn't exist in source, it can only be
   1830             # a generated file in the build tree.
   1831             if ($ddest ne "" && ($ddest eq $src_configdata || ! -f $ddest)) {
   1832                 $ddest = cleanfile($buildd, $_, $blddir);
   1833                 if ($unified_info{rename}->{$ddest}) {
   1834                     $ddest = $unified_info{rename}->{$ddest};
   1835                 }
   1836             }
   1837             foreach (@{$depends{$dest}}) {
   1838                 my $d = cleanfile($sourced, $_, $blddir);
   1839 
   1840                 # If we know it's generated, or assume it is because we can't
   1841                 # find it in the source tree, we set file we depend on to be
   1842                 # in the build tree rather than the source tree, and assume
   1843                 # and that there are lines to build it in a BEGINRAW..ENDRAW
   1844                 # section or in the Makefile template.
   1845                 if ($d eq $src_configdata
   1846                     || ! -f $d
   1847                     || (grep { $d eq $_ }
   1848                         map { cleanfile($srcdir, $_, $blddir) }
   1849                         grep { /\.h$/ } keys %{$unified_info{generate}})) {
   1850                     $d = cleanfile($buildd, $_, $blddir);
   1851                 }
   1852                 # Take note if the file to depend on is being renamed
   1853                 if ($unified_info{rename}->{$d}) {
   1854                     $d = $unified_info{rename}->{$d};
   1855                 }
   1856                 $unified_info{depends}->{$ddest}->{$d} = 1;
   1857             }
   1858         }
   1859 
   1860         foreach (keys %includes) {
   1861             my $dest = $_;
   1862             my $ddest = cleanfile($sourced, $_, $blddir);
   1863 
   1864             # If the destination doesn't exist in source, it can only be
   1865             # a generated file in the build tree.
   1866             if ($ddest eq $src_configdata || ! -f $ddest) {
   1867                 $ddest = cleanfile($buildd, $_, $blddir);
   1868                 if ($unified_info{rename}->{$ddest}) {
   1869                     $ddest = $unified_info{rename}->{$ddest};
   1870                 }
   1871             }
   1872             foreach (@{$includes{$dest}}) {
   1873                 my $is = cleandir($sourced, $_, $blddir);
   1874                 my $ib = cleandir($buildd, $_, $blddir);
   1875                 push @{$unified_info{includes}->{$ddest}->{source}}, $is
   1876                     unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
   1877                 push @{$unified_info{includes}->{$ddest}->{build}}, $ib
   1878                     unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
   1879             }
   1880         }
   1881     }
   1882 
   1883     # Massage the result
   1884 
   1885     # If we depend on a header file or a perl module, add an inclusion of
   1886     # its directory to allow smoothe inclusion
   1887     foreach my $dest (keys %{$unified_info{depends}}) {
   1888         next if $dest eq "";
   1889         foreach my $d (keys %{$unified_info{depends}->{$dest}}) {
   1890             next unless $d =~ /\.(h|pm)$/;
   1891             my $i = dirname($d);
   1892             my $spot =
   1893                 $d eq "configdata.pm" || defined($unified_info{generate}->{$d})
   1894                 ? 'build' : 'source';
   1895             push @{$unified_info{includes}->{$dest}->{$spot}}, $i
   1896                 unless grep { $_ eq $i } @{$unified_info{includes}->{$dest}->{$spot}};
   1897         }
   1898     }
   1899 
   1900     # Trickle down includes placed on libraries, engines and programs to
   1901     # their sources (i.e. object files)
   1902     foreach my $dest (keys %{$unified_info{engines}},
   1903                       keys %{$unified_info{libraries}},
   1904                       keys %{$unified_info{programs}}) {
   1905         foreach my $k (("source", "build")) {
   1906             next unless defined($unified_info{includes}->{$dest}->{$k});
   1907             my @incs = reverse @{$unified_info{includes}->{$dest}->{$k}};
   1908             foreach my $obj (grep /\.o$/,
   1909                              (keys %{$unified_info{sources}->{$dest}},
   1910                               keys %{$unified_info{shared_sources}->{$dest}})) {
   1911                 foreach my $inc (@incs) {
   1912                     unshift @{$unified_info{includes}->{$obj}->{$k}}, $inc
   1913                         unless grep { $_ eq $inc } @{$unified_info{includes}->{$obj}->{$k}};
   1914                 }
   1915             }
   1916         }
   1917         delete $unified_info{includes}->{$dest};
   1918     }
   1919 
   1920     ### Make unified_info a bit more efficient
   1921     # One level structures
   1922     foreach (("programs", "libraries", "engines", "scripts", "extra", "overrides")) {
   1923         $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
   1924     }
   1925     # Two level structures
   1926     foreach my $l1 (("install", "sources", "shared_sources", "ldadd", "depends")) {
   1927         foreach my $l2 (sort keys %{$unified_info{$l1}}) {
   1928             $unified_info{$l1}->{$l2} =
   1929                 [ sort keys %{$unified_info{$l1}->{$l2}} ];
   1930         }
   1931     }
   1932     # Includes
   1933     foreach my $dest (sort keys %{$unified_info{includes}}) {
   1934         if (defined($unified_info{includes}->{$dest}->{build})) {
   1935             my @source_includes = ();
   1936             @source_includes = ( @{$unified_info{includes}->{$dest}->{source}} )
   1937                 if defined($unified_info{includes}->{$dest}->{source});
   1938             $unified_info{includes}->{$dest} =
   1939                 [ @{$unified_info{includes}->{$dest}->{build}} ];
   1940             foreach my $inc (@source_includes) {
   1941                 push @{$unified_info{includes}->{$dest}}, $inc
   1942                     unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
   1943             }
   1944         } else {
   1945             $unified_info{includes}->{$dest} =
   1946                 [ @{$unified_info{includes}->{$dest}->{source}} ];
   1947         }
   1948     }
   1949 }
   1950 
   1951 # For the schemes that need it, we provide the old *_obj configs
   1952 # from the *_asm_obj ones
   1953 foreach (grep /_(asm|aux)_src$/, keys %target) {
   1954     my $src = $_;
   1955     (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
   1956     ($target{$obj} = $target{$src}) =~ s/\.[csS]\b/.o/g;
   1957 }
   1958 
   1959 # Write down our configuration where it fits #########################
   1960 
   1961 open(OUT,">configdata.pm") || die "unable to create configdata.pm: $!\n";
   1962 print OUT <<"EOF";
   1963 package configdata;
   1964 
   1965 use strict;
   1966 use warnings;
   1967 
   1968 use Exporter;
   1969 #use vars qw(\@ISA \@EXPORT);
   1970 our \@ISA = qw(Exporter);
   1971 our \@EXPORT = qw(\%config \%target \%disabled \%withargs \%unified_info \@disablables);
   1972 
   1973 EOF
   1974 print OUT "our %config = (\n";
   1975 foreach (sort keys %config) {
   1976     if (ref($config{$_}) eq "ARRAY") {
   1977 	print OUT "  ", $_, " => [ ", join(", ",
   1978 					   map { quotify("perl", $_) }
   1979 					   @{$config{$_}}), " ],\n";
   1980     } else {
   1981 	print OUT "  ", $_, " => ", quotify("perl", $config{$_}), ",\n"
   1982     }
   1983 }
   1984 print OUT <<"EOF";
   1985 );
   1986 
   1987 EOF
   1988 print OUT "our %target = (\n";
   1989 foreach (sort keys %target) {
   1990     if (ref($target{$_}) eq "ARRAY") {
   1991 	print OUT "  ", $_, " => [ ", join(", ",
   1992 					   map { quotify("perl", $_) }
   1993 					   @{$target{$_}}), " ],\n";
   1994     } else {
   1995 	print OUT "  ", $_, " => ", quotify("perl", $target{$_}), ",\n"
   1996     }
   1997 }
   1998 print OUT <<"EOF";
   1999 );
   2000 
   2001 EOF
   2002 print OUT "our \%available_protocols = (\n";
   2003 print OUT "  tls => [ ", join(", ", map { quotify("perl", $_) } @tls), " ],\n";
   2004 print OUT "  dtls => [ ", join(", ", map { quotify("perl", $_) } @dtls), " ],\n";
   2005 print OUT <<"EOF";
   2006 );
   2007 
   2008 EOF
   2009 print OUT "our \@disablables = (\n";
   2010 foreach (@disablables) {
   2011     print OUT "  ", quotify("perl", $_), ",\n";
   2012 }
   2013 print OUT <<"EOF";
   2014 );
   2015 
   2016 EOF
   2017 print OUT "our \%disabled = (\n";
   2018 foreach (sort keys %disabled) {
   2019     print OUT "  ", quotify("perl", $_), " => ", quotify("perl", $disabled{$_}), ",\n";
   2020 }
   2021 print OUT <<"EOF";
   2022 );
   2023 
   2024 EOF
   2025 print OUT "our %withargs = (\n";
   2026 foreach (sort keys %withargs) {
   2027     if (ref($withargs{$_}) eq "ARRAY") {
   2028 	print OUT "  ", $_, " => [ ", join(", ",
   2029 					   map { quotify("perl", $_) }
   2030 					   @{$withargs{$_}}), " ],\n";
   2031     } else {
   2032 	print OUT "  ", $_, " => ", quotify("perl", $withargs{$_}), ",\n"
   2033     }
   2034 }
   2035 print OUT <<"EOF";
   2036 );
   2037 
   2038 EOF
   2039 if ($builder eq "unified") {
   2040     my $recurse;
   2041     $recurse = sub {
   2042         my $indent = shift;
   2043         foreach (@_) {
   2044             if (ref $_ eq "ARRAY") {
   2045                 print OUT " "x$indent, "[\n";
   2046                 foreach (@$_) {
   2047                     $recurse->($indent + 4, $_);
   2048                 }
   2049                 print OUT " "x$indent, "],\n";
   2050             } elsif (ref $_ eq "HASH") {
   2051                 my %h = %$_;
   2052                 print OUT " "x$indent, "{\n";
   2053                 foreach (sort keys %h) {
   2054                     if (ref $h{$_} eq "") {
   2055                         print OUT " "x($indent + 4), quotify("perl", $_), " => ", quotify("perl", $h{$_}), ",\n";
   2056                     } else {
   2057                         print OUT " "x($indent + 4), quotify("perl", $_), " =>\n";
   2058                         $recurse->($indent + 8, $h{$_});
   2059                     }
   2060                 }
   2061                 print OUT " "x$indent, "},\n";
   2062             } else {
   2063                 print OUT " "x$indent, quotify("perl", $_), ",\n";
   2064             }
   2065         }
   2066     };
   2067     print OUT "our %unified_info = (\n";
   2068     foreach (sort keys %unified_info) {
   2069         if (ref $unified_info{$_} eq "") {
   2070             print OUT " "x4, quotify("perl", $_), " => ", quotify("perl", $unified_info{$_}), ",\n";
   2071         } else {
   2072             print OUT " "x4, quotify("perl", $_), " =>\n";
   2073             $recurse->(8, $unified_info{$_});
   2074         }
   2075     }
   2076     print OUT <<"EOF";
   2077 );
   2078 
   2079 EOF
   2080 }
   2081 print OUT "1;\n";
   2082 close(OUT);
   2083 
   2084 
   2085 print "CC            =$config{cross_compile_prefix}$target{cc}\n";
   2086 print "CFLAG         =$target{cflags} $config{cflags}\n";
   2087 print "SHARED_CFLAG  =$target{shared_cflag}\n";
   2088 print "DEFINES       =",join(" ", @{$target{defines}}, @{$config{defines}}),"\n";
   2089 print "LFLAG         =$target{lflags}\n";
   2090 print "PLIB_LFLAG    =$target{plib_lflags}\n";
   2091 print "EX_LIBS       =$target{ex_libs} $config{ex_libs}\n";
   2092 print "APPS_OBJ      =$target{apps_obj}\n";
   2093 print "CPUID_OBJ     =$target{cpuid_obj}\n";
   2094 print "UPLINK_OBJ    =$target{uplink_obj}\n";
   2095 print "BN_ASM        =$target{bn_obj}\n";
   2096 print "EC_ASM        =$target{ec_obj}\n";
   2097 print "DES_ENC       =$target{des_obj}\n";
   2098 print "AES_ENC       =$target{aes_obj}\n";
   2099 print "BF_ENC        =$target{bf_obj}\n";
   2100 print "CAST_ENC      =$target{cast_obj}\n";
   2101 print "RC4_ENC       =$target{rc4_obj}\n";
   2102 print "RC5_ENC       =$target{rc5_obj}\n";
   2103 print "MD5_OBJ_ASM   =$target{md5_obj}\n";
   2104 print "SHA1_OBJ_ASM  =$target{sha1_obj}\n";
   2105 print "RMD160_OBJ_ASM=$target{rmd160_obj}\n";
   2106 print "CMLL_ENC      =$target{cmll_obj}\n";
   2107 print "MODES_OBJ     =$target{modes_obj}\n";
   2108 print "PADLOCK_OBJ   =$target{padlock_obj}\n";
   2109 print "CHACHA_ENC    =$target{chacha_obj}\n";
   2110 print "POLY1305_OBJ  =$target{poly1305_obj}\n";
   2111 print "BLAKE2_OBJ    =$target{blake2_obj}\n";
   2112 print "PROCESSOR     =$config{processor}\n";
   2113 print "RANLIB        =", $target{ranlib} eq '$(CROSS_COMPILE)ranlib' ?
   2114                              "$config{cross_compile_prefix}ranlib" :
   2115                              "$target{ranlib}", "\n";
   2116 print "ARFLAGS       =$target{arflags}\n";
   2117 print "PERL          =$config{perl}\n";
   2118 print "\n";
   2119 print "SIXTY_FOUR_BIT_LONG mode\n" if $config{b64l};
   2120 print "SIXTY_FOUR_BIT mode\n" if $config{b64};
   2121 print "THIRTY_TWO_BIT mode\n" if $config{b32};
   2122 print "BN_LLONG mode\n" if $config{bn_ll};
   2123 print "RC4 uses $config{rc4_int}\n" if $config{rc4_int} ne $def_int;
   2124 
   2125 my %builders = (
   2126     unified => sub {
   2127         run_dofile(catfile($blddir, $target{build_file}),
   2128                    @{$config{build_file_templates}});
   2129     },
   2130     );
   2131 
   2132 $builders{$builder}->($builder_platform, @builder_opts);
   2133 
   2134 $SIG{__DIE__} = $orig_death_handler;
   2135 
   2136 print <<"EOF";
   2137 
   2138 Configured for $target.
   2139 EOF
   2140 
   2141 print <<"EOF" if ($disabled{threads} eq "unavailable");
   2142 
   2143 The library could not be configured for supporting multi-threaded
   2144 applications as the compiler options required on this system are not known.
   2145 See file INSTALL for details if you need multi-threading.
   2146 EOF
   2147 
   2148 print <<"EOF" if ($no_shared_warn);
   2149 
   2150 The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
   2151 platform, so we will pretend you gave the option 'no-pic', which also disables
   2152 'shared' and 'dynamic-engine'.  If you know how to implement shared libraries
   2153 or position independent code, please let us know (but please first make sure
   2154 you have tried with a current version of OpenSSL).
   2155 EOF
   2156 
   2157 exit(0);
   2158 
   2159 ######################################################################
   2160 #
   2161 # Helpers and utility functions
   2162 #
   2163 
   2164 # Death handler, to print a helpful message in case of failure #######
   2165 #
   2166 sub death_handler {
   2167     die @_ if $^S;              # To prevent the added message in eval blocks
   2168     my $build_file = $target{build_file} // "build file";
   2169     my @message = ( <<"_____", @_ );
   2170 
   2171 Failure!  $build_file wasn't produced.
   2172 Please read INSTALL and associated NOTES files.  You may also have to look over
   2173 your available compiler tool chain or change your configuration.
   2174 
   2175 _____
   2176 
   2177     # Dying is terminal, so it's ok to reset the signal handler here.
   2178     $SIG{__DIE__} = $orig_death_handler;
   2179     die @message;
   2180 }
   2181 
   2182 # Configuration file reading #########################################
   2183 
   2184 # Note: All of the helper functions are for lazy evaluation.  They all
   2185 # return a CODE ref, which will return the intended value when evaluated.
   2186 # Thus, whenever there's mention of a returned value, it's about that
   2187 # intended value.
   2188 
   2189 # Helper function to implement conditional inheritance depending on the
   2190 # value of $disabled{asm}.  Used in inherit_from values as follows:
   2191 #
   2192 #      inherit_from => [ "template", asm("asm_tmpl") ]
   2193 #
   2194 sub asm {
   2195     my @x = @_;
   2196     sub {
   2197 	$disabled{asm} ? () : @x;
   2198     }
   2199 }
   2200 
   2201 # Helper function to implement conditional value variants, with a default
   2202 # plus additional values based on the value of $config{build_type}.
   2203 # Arguments are given in hash table form:
   2204 #
   2205 #       picker(default => "Basic string: ",
   2206 #              debug   => "debug",
   2207 #              release => "release")
   2208 #
   2209 # When configuring with --debug, the resulting string will be
   2210 # "Basic string: debug", and when not, it will be "Basic string: release"
   2211 #
   2212 # This can be used to create variants of sets of flags according to the
   2213 # build type:
   2214 #
   2215 #       cflags => picker(default => "-Wall",
   2216 #                        debug   => "-g -O0",
   2217 #                        release => "-O3")
   2218 #
   2219 sub picker {
   2220     my %opts = @_;
   2221     return sub { add($opts{default} || (),
   2222                      $opts{$config{build_type}} || ())->(); }
   2223 }
   2224 
   2225 # Helper function to combine several values of different types into one.
   2226 # This is useful if you want to combine a string with the result of a
   2227 # lazy function, such as:
   2228 #
   2229 #       cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
   2230 #
   2231 sub combine {
   2232     my @stuff = @_;
   2233     return sub { add(@stuff)->(); }
   2234 }
   2235 
   2236 # Helper function to implement conditional values depending on the value
   2237 # of $disabled{threads}.  Can be used as follows:
   2238 #
   2239 #       cflags => combine("-Wall", threads("-pthread"))
   2240 #
   2241 sub threads {
   2242     my @flags = @_;
   2243     return sub { add($disabled{threads} ? () : @flags)->(); }
   2244 }
   2245 
   2246 
   2247 
   2248 our $add_called = 0;
   2249 # Helper function to implement adding values to already existing configuration
   2250 # values.  It handles elements that are ARRAYs, CODEs and scalars
   2251 sub _add {
   2252     my $separator = shift;
   2253 
   2254     # If there's any ARRAY in the collection of values OR the separator
   2255     # is undef, we will return an ARRAY of combined values, otherwise a
   2256     # string of joined values with $separator as the separator.
   2257     my $found_array = !defined($separator);
   2258 
   2259     my @values =
   2260 	map {
   2261 	    my $res = $_;
   2262 	    while (ref($res) eq "CODE") {
   2263 		$res = $res->();
   2264 	    }
   2265 	    if (defined($res)) {
   2266 		if (ref($res) eq "ARRAY") {
   2267 		    $found_array = 1;
   2268 		    @$res;
   2269 		} else {
   2270 		    $res;
   2271 		}
   2272 	    } else {
   2273 		();
   2274 	    }
   2275     } (@_);
   2276 
   2277     $add_called = 1;
   2278 
   2279     if ($found_array) {
   2280 	[ @values ];
   2281     } else {
   2282 	join($separator, grep { defined($_) && $_ ne "" } @values);
   2283     }
   2284 }
   2285 sub add_before {
   2286     my $separator = " ";
   2287     if (ref($_[$#_]) eq "HASH") {
   2288         my $opts = pop;
   2289         $separator = $opts->{separator};
   2290     }
   2291     my @x = @_;
   2292     sub { _add($separator, @x, @_) };
   2293 }
   2294 sub add {
   2295     my $separator = " ";
   2296     if (ref($_[$#_]) eq "HASH") {
   2297         my $opts = pop;
   2298         $separator = $opts->{separator};
   2299     }
   2300     my @x = @_;
   2301     sub { _add($separator, @_, @x) };
   2302 }
   2303 
   2304 # configuration reader, evaluates the input file as a perl script and expects
   2305 # it to fill %targets with target configurations.  Those are then added to
   2306 # %table.
   2307 sub read_config {
   2308     my $fname = shift;
   2309     open(CONFFILE, "< $fname")
   2310 	or die "Can't open configuration file '$fname'!\n";
   2311     my $x = $/;
   2312     undef $/;
   2313     my $content = <CONFFILE>;
   2314     $/ = $x;
   2315     close(CONFFILE);
   2316     my %targets = ();
   2317     {
   2318 	# Protect certain tables from tampering
   2319 	local %table = %::table;
   2320 
   2321 	eval $content;
   2322 	warn $@ if $@;
   2323     }
   2324     my %preexisting = ();
   2325     foreach (sort keys %targets) {
   2326         $preexisting{$_} = 1 if $table{$_};
   2327     }
   2328     die <<"EOF",
   2329 The following config targets from $fname
   2330 shadow pre-existing config targets with the same name:
   2331 EOF
   2332         map { "  $_\n" } sort keys %preexisting
   2333         if %preexisting;
   2334 
   2335 
   2336     # For each target, check that it's configured with a hash table.
   2337     foreach (keys %targets) {
   2338 	if (ref($targets{$_}) ne "HASH") {
   2339 	    if (ref($targets{$_}) eq "") {
   2340 		warn "Deprecated target configuration for $_, ignoring...\n";
   2341 	    } else {
   2342 		warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
   2343 	    }
   2344 	    delete $targets{$_};
   2345 	} else {
   2346             $targets{$_}->{_conf_fname_int} = add([ $fname ]);
   2347         }
   2348     }
   2349 
   2350     %table = (%table, %targets);
   2351 
   2352 }
   2353 
   2354 # configuration resolver.  Will only resolve all the lazy evaluation
   2355 # codeblocks for the chosen target and all those it inherits from,
   2356 # recursively
   2357 sub resolve_config {
   2358     my $target = shift;
   2359     my @breadcrumbs = @_;
   2360 
   2361 #    my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
   2362 
   2363     if (grep { $_ eq $target } @breadcrumbs) {
   2364 	die "inherit_from loop!  target backtrace:\n  "
   2365 	    ,$target,"\n  ",join("\n  ", @breadcrumbs),"\n";
   2366     }
   2367 
   2368     if (!defined($table{$target})) {
   2369 	warn "Warning! target $target doesn't exist!\n";
   2370 	return ();
   2371     }
   2372     # Recurse through all inheritances.  They will be resolved on the
   2373     # fly, so when this operation is done, they will all just be a
   2374     # bunch of attributes with string values.
   2375     # What we get here, though, are keys with references to lists of
   2376     # the combined values of them all.  We will deal with lists after
   2377     # this stage is done.
   2378     my %combined_inheritance = ();
   2379     if ($table{$target}->{inherit_from}) {
   2380 	my @inherit_from =
   2381 	    map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
   2382 	foreach (@inherit_from) {
   2383 	    my %inherited_config = resolve_config($_, $target, @breadcrumbs);
   2384 
   2385 	    # 'template' is a marker that's considered private to
   2386 	    # the config that had it.
   2387 	    delete $inherited_config{template};
   2388 
   2389 	    foreach (keys %inherited_config) {
   2390 		if (!$combined_inheritance{$_}) {
   2391 		    $combined_inheritance{$_} = [];
   2392 		}
   2393 		push @{$combined_inheritance{$_}}, $inherited_config{$_};
   2394 	    }
   2395 	}
   2396     }
   2397 
   2398     # We won't need inherit_from in this target any more, since we've
   2399     # resolved all the inheritances that lead to this
   2400     delete $table{$target}->{inherit_from};
   2401 
   2402     # Now is the time to deal with those lists.  Here's the place to
   2403     # decide what shall be done with those lists, all based on the
   2404     # values of the target we're currently dealing with.
   2405     # - If a value is a coderef, it will be executed with the list of
   2406     #   inherited values as arguments.
   2407     # - If the corresponding key doesn't have a value at all or is the
   2408     #   empty string, the inherited value list will be run through the
   2409     #   default combiner (below), and the result becomes this target's
   2410     #   value.
   2411     # - Otherwise, this target's value is assumed to be a string that
   2412     #   will simply override the inherited list of values.
   2413     my $default_combiner = add();
   2414 
   2415     my %all_keys =
   2416 	map { $_ => 1 } (keys %combined_inheritance,
   2417 			 keys %{$table{$target}});
   2418 
   2419     sub process_values {
   2420 	my $object    = shift;
   2421 	my $inherited = shift;  # Always a [ list ]
   2422 	my $target    = shift;
   2423 	my $entry     = shift;
   2424 
   2425         $add_called = 0;
   2426 
   2427         while(ref($object) eq "CODE") {
   2428             $object = $object->(@$inherited);
   2429         }
   2430         if (!defined($object)) {
   2431             return ();
   2432         }
   2433         elsif (ref($object) eq "ARRAY") {
   2434             local $add_called;  # To make sure recursive calls don't affect it
   2435             return [ map { process_values($_, $inherited, $target, $entry) }
   2436                      @$object ];
   2437         } elsif (ref($object) eq "") {
   2438             return $object;
   2439         } else {
   2440             die "cannot handle reference type ",ref($object)
   2441                 ," found in target ",$target," -> ",$entry,"\n";
   2442         }
   2443     }
   2444 
   2445     foreach (sort keys %all_keys) {
   2446         my $previous = $combined_inheritance{$_};
   2447 
   2448 	# Current target doesn't have a value for the current key?
   2449 	# Assign it the default combiner, the rest of this loop body
   2450 	# will handle it just like any other coderef.
   2451 	if (!exists $table{$target}->{$_}) {
   2452 	    $table{$target}->{$_} = $default_combiner;
   2453 	}
   2454 
   2455 	$table{$target}->{$_} = process_values($table{$target}->{$_},
   2456 					       $combined_inheritance{$_},
   2457 					       $target, $_);
   2458         unless(defined($table{$target}->{$_})) {
   2459             delete $table{$target}->{$_};
   2460         }
   2461 #        if ($extra_checks &&
   2462 #            $previous && !($add_called ||  $previous ~~ $table{$target}->{$_})) {
   2463 #            warn "$_ got replaced in $target\n";
   2464 #        }
   2465     }
   2466 
   2467     # Finally done, return the result.
   2468     return %{$table{$target}};
   2469 }
   2470 
   2471 sub usage
   2472 	{
   2473 	print STDERR $usage;
   2474 	print STDERR "\npick os/compiler from:\n";
   2475 	my $j=0;
   2476 	my $i;
   2477         my $k=0;
   2478 	foreach $i (sort keys %table)
   2479 		{
   2480 		next if $table{$i}->{template};
   2481 		next if $i =~ /^debug/;
   2482 		$k += length($i) + 1;
   2483 		if ($k > 78)
   2484 			{
   2485 			print STDERR "\n";
   2486 			$k=length($i);
   2487 			}
   2488 		print STDERR $i . " ";
   2489 		}
   2490 	foreach $i (sort keys %table)
   2491 		{
   2492 		next if $table{$i}->{template};
   2493 		next if $i !~ /^debug/;
   2494 		$k += length($i) + 1;
   2495 		if ($k > 78)
   2496 			{
   2497 			print STDERR "\n";
   2498 			$k=length($i);
   2499 			}
   2500 		print STDERR $i . " ";
   2501 		}
   2502 	print STDERR "\n\nNOTE: If in doubt, on Unix-ish systems use './config'.\n";
   2503 	exit(1);
   2504 	}
   2505 
   2506 sub run_dofile
   2507 {
   2508     my $out = shift;
   2509     my @templates = @_;
   2510 
   2511     unlink $out || warn "Can't remove $out, $!"
   2512         if -f $out;
   2513     foreach (@templates) {
   2514         die "Can't open $_, $!" unless -f $_;
   2515     }
   2516     my $perlcmd = (quotify("maybeshell", $config{perl}))[0];
   2517     my $cmd = "$perlcmd \"-I.\" \"-Mconfigdata\" \"$dofile\" -o\"Configure\" \"".join("\" \"",@templates)."\" > \"$out.new\"";
   2518     #print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
   2519     system($cmd);
   2520     exit 1 if $? != 0;
   2521     rename("$out.new", $out) || die "Can't rename $out.new, $!";
   2522 }
   2523 
   2524 sub which
   2525 {
   2526     my ($name)=@_;
   2527 
   2528     if (eval { require IPC::Cmd; 1; }) {
   2529         IPC::Cmd->import();
   2530         return scalar IPC::Cmd::can_run($name);
   2531     } else {
   2532         # if there is $directories component in splitpath,
   2533         # then it's not something to test with $PATH...
   2534         return $name if (File::Spec->splitpath($name))[1];
   2535 
   2536         foreach (File::Spec->path()) {
   2537             my $fullpath = catfile($_, "$name$target{exe_extension}");
   2538             if (-f $fullpath and -x $fullpath) {
   2539                 return $fullpath;
   2540             }
   2541         }
   2542     }
   2543 }
   2544 
   2545 # Configuration printer ##############################################
   2546 
   2547 sub print_table_entry
   2548 {
   2549     my $target = shift;
   2550     my %target = resolve_config($target);
   2551     my $type = shift;
   2552 
   2553     # Don't print the templates
   2554     return if $target{template};
   2555 
   2556     my @sequence = (
   2557 	"sys_id",
   2558 	"cc",
   2559 	"cflags",
   2560 	"defines",
   2561 	"unistd",
   2562 	"ld",
   2563 	"lflags",
   2564 	"loutflag",
   2565 	"plib_lflags",
   2566 	"ex_libs",
   2567 	"bn_ops",
   2568 	"apps_aux_src",
   2569 	"cpuid_asm_src",
   2570 	"uplink_aux_src",
   2571 	"bn_asm_src",
   2572 	"ec_asm_src",
   2573 	"des_asm_src",
   2574 	"aes_asm_src",
   2575 	"bf_asm_src",
   2576 	"md5_asm_src",
   2577 	"cast_asm_src",
   2578 	"sha1_asm_src",
   2579 	"rc4_asm_src",
   2580 	"rmd160_asm_src",
   2581 	"rc5_asm_src",
   2582 	"wp_asm_src",
   2583 	"cmll_asm_src",
   2584 	"modes_asm_src",
   2585 	"padlock_asm_src",
   2586 	"chacha_asm_src",
   2587 	"poly1035_asm_src",
   2588 	"thread_scheme",
   2589 	"perlasm_scheme",
   2590 	"dso_scheme",
   2591 	"shared_target",
   2592 	"shared_cflag",
   2593 	"shared_defines",
   2594 	"shared_ldflag",
   2595 	"shared_rcflag",
   2596 	"shared_extension",
   2597 	"dso_extension",
   2598 	"obj_extension",
   2599 	"exe_extension",
   2600 	"ranlib",
   2601 	"ar",
   2602 	"arflags",
   2603 	"aroutflag",
   2604 	"rc",
   2605 	"rcflags",
   2606 	"rcoutflag",
   2607 	"mt",
   2608 	"mtflags",
   2609 	"mtinflag",
   2610 	"mtoutflag",
   2611 	"multilib",
   2612 	"build_scheme",
   2613 	);
   2614 
   2615     if ($type eq "TABLE") {
   2616 	print "\n";
   2617 	print "*** $target\n";
   2618         foreach (@sequence) {
   2619             if (ref($target{$_}) eq "ARRAY") {
   2620                 printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
   2621             } else {
   2622                 printf "\$%-12s = %s\n", $_, $target{$_};
   2623             }
   2624         }
   2625     } elsif ($type eq "HASH") {
   2626 	my $largest =
   2627 	    length((sort { length($a) <=> length($b) } @sequence)[-1]);
   2628 	print "    '$target' => {\n";
   2629 	foreach (@sequence) {
   2630 	    if ($target{$_}) {
   2631                 if (ref($target{$_}) eq "ARRAY") {
   2632                     print "      '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
   2633                 } else {
   2634                     print "      '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
   2635                 }
   2636 	    }
   2637 	}
   2638 	print "    },\n";
   2639     }
   2640 }
   2641 
   2642 # Utility routines ###################################################
   2643 
   2644 # On VMS, if the given file is a logical name, File::Spec::Functions
   2645 # will consider it an absolute path.  There are cases when we want a
   2646 # purely syntactic check without checking the environment.
   2647 sub isabsolute {
   2648     my $file = shift;
   2649 
   2650     # On non-platforms, we just use file_name_is_absolute().
   2651     return file_name_is_absolute($file) unless $^O eq "VMS";
   2652 
   2653     # If the file spec includes a device or a directory spec,
   2654     # file_name_is_absolute() is perfectly safe.
   2655     return file_name_is_absolute($file) if $file =~ m|[:\[]|;
   2656 
   2657     # Here, we know the given file spec isn't absolute
   2658     return 0;
   2659 }
   2660 
   2661 # Makes a directory absolute and cleans out /../ in paths like foo/../bar
   2662 # On some platforms, this uses rel2abs(), while on others, realpath() is used.
   2663 # realpath() requires that at least all path components except the last is an
   2664 # existing directory.  On VMS, the last component of the directory spec must
   2665 # exist.
   2666 sub absolutedir {
   2667     my $dir = shift;
   2668 
   2669     # realpath() is quite buggy on VMS.  It uses LIB$FID_TO_NAME, which
   2670     # will return the volume name for the device, no matter what.  Also,
   2671     # it will return an incorrect directory spec if the argument is a
   2672     # directory that doesn't exist.
   2673     if ($^O eq "VMS") {
   2674         return rel2abs($dir);
   2675     }
   2676 
   2677     # We use realpath() on Unix, since no other will properly clean out
   2678     # a directory spec.
   2679     use Cwd qw/realpath/;
   2680 
   2681     return realpath($dir);
   2682 }
   2683 
   2684 sub quotify {
   2685     my %processors = (
   2686 	perl    => sub { my $x = shift;
   2687 			 $x =~ s/([\\\$\@"])/\\$1/g;
   2688 			 return '"'.$x.'"'; },
   2689 	maybeshell => sub { my $x = shift;
   2690 			    (my $y = $x) =~ s/([\\\"])/\\$1/g;
   2691 			    if ($x ne $y || $x =~ m|\s|) {
   2692 				return '"'.$y.'"';
   2693 			    } else {
   2694 				return $x;
   2695 			    }
   2696 			},
   2697 	);
   2698     my $for = shift;
   2699     my $processor =
   2700 	defined($processors{$for}) ? $processors{$for} : sub { shift; };
   2701 
   2702     return map { $processor->($_); } @_;
   2703 }
   2704 
   2705 # collect_from_file($filename, $line_concat_cond_re, $line_concat)
   2706 # $filename is a file name to read from
   2707 # $line_concat_cond_re is a regexp detecting a line continuation ending
   2708 # $line_concat is a CODEref that takes care of concatenating two lines
   2709 sub collect_from_file {
   2710     my $filename = shift;
   2711     my $line_concat_cond_re = shift;
   2712     my $line_concat = shift;
   2713 
   2714     open my $fh, $filename || die "unable to read $filename: $!\n";
   2715     return sub {
   2716         my $saved_line = "";
   2717         $_ = "";
   2718         while (<$fh>) {
   2719             s|\R$||;
   2720             if (defined $line_concat) {
   2721                 $_ = $line_concat->($saved_line, $_);
   2722                 $saved_line = "";
   2723             }
   2724             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
   2725                 $saved_line = $_;
   2726                 next;
   2727             }
   2728             return $_;
   2729         }
   2730         die "$filename ending with continuation line\n" if $_;
   2731         close $fh;
   2732         return undef;
   2733     }
   2734 }
   2735 
   2736 # collect_from_array($array, $line_concat_cond_re, $line_concat)
   2737 # $array is an ARRAYref of lines
   2738 # $line_concat_cond_re is a regexp detecting a line continuation ending
   2739 # $line_concat is a CODEref that takes care of concatenating two lines
   2740 sub collect_from_array {
   2741     my $array = shift;
   2742     my $line_concat_cond_re = shift;
   2743     my $line_concat = shift;
   2744     my @array = (@$array);
   2745 
   2746     return sub {
   2747         my $saved_line = "";
   2748         $_ = "";
   2749         while (defined($_ = shift @array)) {
   2750             s|\R$||;
   2751             if (defined $line_concat) {
   2752                 $_ = $line_concat->($saved_line, $_);
   2753                 $saved_line = "";
   2754             }
   2755             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
   2756                 $saved_line = $_;
   2757                 next;
   2758             }
   2759             return $_;
   2760         }
   2761         die "input text ending with continuation line\n" if $_;
   2762         return undef;
   2763     }
   2764 }
   2765 
   2766 # collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
   2767 # $lineiterator is a CODEref that delivers one line at a time.
   2768 # All following arguments are regex/CODEref pairs, where the regexp detects a
   2769 # line and the CODEref does something with the result of the regexp.
   2770 sub collect_information {
   2771     my $lineiterator = shift;
   2772     my %collectors = @_;
   2773 
   2774     while(defined($_ = $lineiterator->())) {
   2775         s|\R$||;
   2776         my $found = 0;
   2777         if ($collectors{"BEFORE"}) {
   2778             $collectors{"BEFORE"}->($_);
   2779         }
   2780         foreach my $re (keys %collectors) {
   2781             if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
   2782                 $collectors{$re}->($lineiterator);
   2783                 $found = 1;
   2784             };
   2785         }
   2786         if ($collectors{"OTHERWISE"}) {
   2787             $collectors{"OTHERWISE"}->($lineiterator, $_)
   2788                 unless $found || !defined $collectors{"OTHERWISE"};
   2789         }
   2790         if ($collectors{"AFTER"}) {
   2791             $collectors{"AFTER"}->($_);
   2792         }
   2793     }
   2794 }
   2795 
   2796 # tokenize($line)
   2797 # $line is a line of text to split up into tokens
   2798 # returns a list of tokens
   2799 #
   2800 # Tokens are divided by spaces.  If the tokens include spaces, they
   2801 # have to be quoted with single or double quotes.  Double quotes
   2802 # inside a double quoted token must be escaped.  Escaping is done
   2803 # with backslash.
   2804 # Basically, the same quoting rules apply for " and ' as in any
   2805 # Unix shell.
   2806 sub tokenize {
   2807     my $line = my $debug_line = shift;
   2808     my @result = ();
   2809 
   2810     while ($line =~ s|^\s+||, $line ne "") {
   2811         my $token = "";
   2812         while ($line ne "" && $line !~ m|^\s|) {
   2813             if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
   2814                 $token .= $1;
   2815                 $line = $';
   2816             } elsif ($line =~ m/^'([^']*)'/) {
   2817                 $token .= $1;
   2818                 $line = $';
   2819             } elsif ($line =~ m/^(\S+)/) {
   2820                 $token .= $1;
   2821                 $line = $';
   2822             }
   2823         }
   2824         push @result, $token;
   2825     }
   2826 
   2827     if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
   2828 	print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
   2829 	print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
   2830     }
   2831     return @result;
   2832 }
   2833