Add some extra comments following alert changes
[openssl.git] / Configure
index 5e2e8d38dc71198c7feb5b8f4d1146fb331b0e61..24dbde84ed74ae5539aabf06430d9c32b9a348f1 100755 (executable)
--- a/Configure
+++ b/Configure
@@ -1,17 +1,21 @@
 #! /usr/bin/env perl
 # -*- mode: perl; -*-
+# Copyright 2016-2017 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the OpenSSL license (the "License").  You may not use
+# this file except in compliance with the License.  You can obtain a copy
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
 
-##
 ##  Configure -- OpenSSL source tree configuration script
-##  If editing this file, run this command before committing
-##     make -f Makefile.in TABLE
-##
 
-require 5.000;
+use 5.10.0;
 use strict;
+use Config;
 use File::Basename;
 use File::Spec::Functions qw/:DEFAULT abs2rel rel2abs/;
 use File::Path qw/mkpath/;
+use if $^O ne "VMS", 'File::Glob' => qw/glob/;
 
 # see INSTALL for instructions.
 
@@ -56,10 +60,30 @@ my $usage="Usage: Configure [no-<cipher> ...] [enable-<cipher> ...] [-Dxxx] [-lx
 # zlib-dynamic Like "zlib", but the zlib library is expected to be a shared
 #              library and will be loaded in run-time by the OpenSSL library.
 # sctp          include SCTP support
-# 386           generate 80386 code
-# no-sse2      disables IA-32 SSE2 code, above option implies no-sse2
+# enable-weak-ssl-ciphers
+#               Enable weak ciphers that are disabled by default. This currently
+#               only includes RC4 based ciphers.
+# 386           generate 80386 code in assembly modules
+# no-sse2       disables IA-32 SSE2 code in assembly modules, the above
+#               mentioned '386' option implies this one
 # no-<cipher>   build without specified algorithm (rsa, idea, rc5, ...)
 # -<xxx> +<xxx> compiler options are passed through
+# -static       while -static is also a pass-through compiler option (and
+#               as such is limited to environments where it's actually
+#               meaningful), it triggers a number configuration options,
+#               namely no-dso, no-pic, no-shared and no-threads. It is
+#               argued that the only reason to produce statically linked
+#               binaries (and in context it means executables linked with
+#               -static flag, and not just executables linked with static
+#               libcrypto.a) is to eliminate dependency on specific run-time,
+#               a.k.a. libc version. The mentioned config options are meant
+#               to achieve just that. Unfortunately on Linux it's impossible
+#               to eliminate the dependency completely for openssl executable
+#               because of getaddrinfo and gethostbyname calls, which can
+#               invoke dynamically loadable library facility anyway to meet
+#               the lookup requests. For this reason on Linux statically
+#               linked openssl executable has rather debugging value than
+#               production quality.
 #
 # DEBUG_SAFESTACK use type-safe stacks to enforce type-safety on stack items
 #              provided to stack calls. Generates unique stack functions for
@@ -68,42 +92,57 @@ my $usage="Usage: Configure [no-<cipher> ...] [enable-<cipher> ...] [-Dxxx] [-lx
 # RC4_CHAR     use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
 # Following are set automatically by this script
 #
-# MD5_ASM      use some extra md5 assember,
-# SHA1_ASM     use some extra sha1 assember, must define L_ENDIAN for x86
-# RMD160_ASM   use some extra ripemd160 assember,
+# MD5_ASM      use some extra md5 assembler,
+# SHA1_ASM     use some extra sha1 assembler, must define L_ENDIAN for x86
+# RMD160_ASM   use some extra ripemd160 assembler,
 # SHA256_ASM   sha256_block is implemented in assembler
 # SHA512_ASM   sha512_block is implemented in assembler
-# AES_ASM      ASE_[en|de]crypt is implemented in assembler
+# AES_ASM      AES_[en|de]crypt is implemented in assembler
 
 # Minimum warning options... any contributions to OpenSSL should at least get
 # past these.
 
-my $gcc_devteam_warn = "-DPEDANTIC -DREF_DEBUG -DDEBUG_UNUSED -DBIO_DEBUG"
-        . " -pedantic"
+# DEBUG_UNUSED enables __owur (warn unused result) checks.
+# -DPEDANTIC complements -pedantic and is meant to mask code that
+# is not strictly standard-compliant and/or implementation-specific,
+# e.g. inline assembly, disregards to alignment requirements, such
+# that -pedantic would complain about. Incidentally -DPEDANTIC has
+# to be used even in sanitized builds, because sanitizer too is
+# supposed to and does take notice of non-standard behaviour. Then
+# -pedantic with pre-C9x compiler would also complain about 'long
+# long' not being supported. As 64-bit algorithms are common now,
+# it grew impossible to resolve this without sizeable additional
+# code, so we just tell compiler to be pedantic about everything
+# but 'long long' type.
+
+my $gcc_devteam_warn = "-DDEBUG_UNUSED"
+        . " -Wswitch"
+        . " -DPEDANTIC -pedantic -Wno-long-long"
         . " -Wall"
-        . " -Wno-long-long"
+        . " -Wextra"
+        . " -Wno-unused-parameter"
+        . " -Wno-missing-field-initializers"
         . " -Wsign-compare"
         . " -Wmissing-prototypes"
         . " -Wshadow"
         . " -Wformat"
         . " -Wtype-limits"
+        . " -Wundef"
         . " -Werror"
         ;
 
 # These are used in addition to $gcc_devteam_warn when the compiler is clang.
 # TODO(openssl-team): fix problems and investigate if (at least) the
 # following warnings can also be enabled:
-#       -Wswitch-enum
 #       -Wcast-align
-#       -Wunreachable-code
+#       -Wunreachable-code -- no, too ugly/compiler-specific
 #       -Wlanguage-extension-token -- no, we use asm()
 #       -Wunused-macros -- no, too tricky for BN and _XOPEN_SOURCE etc
 #       -Wextended-offsetof -- no, needed in CMS ASN1 code
 my $clang_devteam_warn = ""
         . " -Qunused-arguments"
-        . " -Wextra"
-        . " -Wno-unused-parameter"
-        . " -Wno-missing-field-initializers"
+        . " -Wswitch-default"
+        . " -Wno-parentheses-equality"
         . " -Wno-language-extension-token"
         . " -Wno-extended-offsetof"
         . " -Wconditional-uninitialized"
@@ -127,7 +166,7 @@ my $strict_warnings = 0;
 our $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";
 
 #
-# API compability name to version number mapping.
+# API compatibility name to version number mapping.
 #
 my $maxapi = "1.1.0";           # API for "no-deprecated" builds
 my $apitable = {
@@ -150,7 +189,7 @@ sub read_config;
 
 # resolve_config(target)
 #
-# Resolves all the late evalutations, inheritances and so on for the
+# Resolves all the late evaluations, inheritances and so on for the
 # chosen target and any target it inherits from.
 sub resolve_config;
 
@@ -162,9 +201,53 @@ my $srcdir = catdir(absolutedir(dirname($0))); # catdir ensures local syntax
 my $blddir = catdir(absolutedir("."));         # catdir ensures local syntax
 my $dofile = abs2rel(catfile($srcdir, "util/dofile.pl"));
 
+my $local_config_envname = 'OPENSSL_LOCAL_CONFIG_DIR';
+
 $config{sourcedir} = abs2rel($srcdir);
 $config{builddir} = abs2rel($blddir);
 
+# Collect reconfiguration information if needed
+my @argvcopy=@ARGV;
+
+if (grep /^reconf(igure)?$/, @argvcopy) {
+    if (-f "./configdata.pm") {
+       my $file = "./configdata.pm";
+       unless (my $return = do $file) {
+           die "couldn't parse $file: $@" if $@;
+            die "couldn't do $file: $!"    unless defined $return;
+            die "couldn't run $file"       unless $return;
+       }
+
+       @argvcopy = defined($configdata::config{perlargv}) ?
+           @{$configdata::config{perlargv}} : ();
+       die "Incorrect data to reconfigure, please do a normal configuration\n"
+           if (grep(/^reconf/,@argvcopy));
+       $ENV{CROSS_COMPILE} = $configdata::config{cross_compile_prefix}
+           if defined($configdata::config{cross_compile_prefix});
+       $ENV{CC} = $configdata::config{cc}
+           if defined($configdata::config{cc});
+       $ENV{CXX} = $configdata::config{cxx}
+           if defined($configdata::config{cxx});
+       $ENV{BUILDFILE} = $configdata::config{build_file}
+           if defined($configdata::config{build_file});
+       $ENV{$local_config_envname} = $configdata::config{local_config_dir}
+           if defined($configdata::config{local_config_dir});
+
+       print "Reconfiguring with: ", join(" ",@argvcopy), "\n";
+       print "    CROSS_COMPILE = ",$ENV{CROSS_COMPILE},"\n"
+           if $ENV{CROSS_COMPILE};
+       print "    CC = ",$ENV{CC},"\n" if $ENV{CC};
+       print "    CXX = ",$ENV{CXX},"\n" if $ENV{CXX};
+       print "    BUILDFILE = ",$ENV{BUILDFILE},"\n" if $ENV{BUILDFILE};
+       print "    $local_config_envname = ",$ENV{$local_config_envname},"\n"
+           if $ENV{$local_config_envname};
+    } else {
+       die "Insufficient data to reconfigure, please do a normal configuration\n";
+    }
+}
+
+$config{perlargv} = [ @argvcopy ];
+
 # Collect version numbers
 $config{version} = "unknown";
 $config{version_num} = "unknown";
@@ -192,54 +275,68 @@ die "erroneous version information in opensslv.h: ",
 # Collect target configurations
 
 my $pattern = catfile(dirname($0), "Configurations", "*.conf");
-foreach (sort glob($pattern) ) {
+foreach (sort glob($pattern)) {
     &read_config($_);
 }
 
+if (defined $ENV{$local_config_envname}) {
+    if ($^O eq 'VMS') {
+        # VMS environment variables are logical names,
+        # which can be used as is
+        $pattern = $local_config_envname . ':' . '*.conf';
+    } else {
+        $pattern = catfile($ENV{$local_config_envname}, '*.conf');
+    }
+
+    foreach (sort glob($pattern)) {
+        &read_config($_);
+    }
+}
+
 
-print "Configuring OpenSSL version $config{version} (0x$config{version_num})\n";
+print "Configuring OpenSSL version $config{version} ($config{version_num})\n";
 
-$config{perl};
 $config{prefix}="";
 $config{openssldir}="";
 $config{processor}="";
 $config{libdir}="";
 $config{cross_compile_prefix}="";
-$config{fipslibdir}="/usr/local/ssl/fips-2.0/lib/";
-my $nofipscanistercheck=0;
-$config{baseaddr}="0xFB00000";
 my $auto_threads=1;    # enable threads automatically? true by default
 my $default_ranlib;
-$config{fips}=0;
 
 # Top level directories to build
-$config{dirs} = [ "crypto", "ssl", "engines", "apps", "test", "tools" ];
+$config{dirs} = [ "crypto", "ssl", "engines", "apps", "test", "util", "tools", "fuzz" ];
 # crypto/ subdirectories to build
 $config{sdirs} = [
     "objects",
-    "md2", "md4", "md5", "sha", "mdc2", "hmac", "ripemd", "whrlpool", "poly1305",
-    "des", "aes", "rc2", "rc4", "rc5", "idea", "bf", "cast", "camellia", "seed", "chacha", "modes",
+    "md2", "md4", "md5", "sha", "mdc2", "hmac", "ripemd", "whrlpool", "poly1305", "blake2", "siphash",
+    "des", "aes", "rc2", "rc4", "rc5", "idea", "aria", "bf", "cast", "camellia", "seed", "chacha", "modes",
     "bn", "ec", "rsa", "dsa", "dh", "dso", "engine",
     "buffer", "bio", "stack", "lhash", "rand", "err",
     "evp", "asn1", "pem", "x509", "x509v3", "conf", "txt_db", "pkcs7", "pkcs12", "comp", "ocsp", "ui",
     "cms", "ts", "srp", "cmac", "ct", "async", "kdf"
     ];
+# test/ subdirectories to build
+$config{tdirs} = [ "ossl_shim" ];
 
 # Known TLS and DTLS protocols
-my @tls = qw(ssl3 tls1 tls1_1 tls1_2);
+my @tls = qw(ssl3 tls1 tls1_1 tls1_2 tls1_3);
 my @dtls = qw(dtls1 dtls1_2);
 
-# Explicitelly known options that are possible to disable.  They can
+# Explicitly known options that are possible to disable.  They can
 # be regexps, and will be used like this: /^no-${option}$/
 # For developers: keep it sorted alphabetically
 
 my @disablables = (
-    "aes",
+    "afalgeng",
+    "aria",
+    "asan",
     "asm",
     "async",
     "autoalginit",
     "autoerrinit",
     "bf",
+    "blake2",
     "camellia",
     "capieng",
     "cast",
@@ -266,17 +363,20 @@ my @disablables = (
     "egd",
     "engine",
     "err",
+    "external-tests",
     "filenames",
+    "fuzz-libfuzzer",
+    "fuzz-afl",
+    "gost",
     "heartbeats",
-    "hmac",
     "hw(-.+)?",
     "idea",
-    "locking",
+    "makedepend",
     "md2",
     "md4",
-    "md5",
     "mdc2",
-    "md[-_]ghost94",
+    "msan",
+    "multiblock",
     "nextprotoneg",
     "ocb",
     "ocsp",
@@ -289,16 +389,12 @@ my @disablables = (
     "rc5",
     "rdrand",
     "rfc3779",
-    "rijndael",                        # Old AES name
-    "ripemd",
     "rmd160",
-    "rsa",
     "scrypt",
-    "sct",
     "sctp",
     "seed",
-    "sha",
     "shared",
+    "siphash",
     "sock",
     "srp",
     "srtp",
@@ -307,12 +403,16 @@ my @disablables = (
     "ssl-trace",
     "static-engine",
     "stdio",
+    "tests",
     "threads",
     "tls",
+    "tls13downgrade",
     "ts",
+    "ubsan",
     "ui",
     "unit-test",
     "whirlpool",
+    "weak-ssl-ciphers",
     "zlib",
     "zlib-dynamic",
     );
@@ -322,26 +422,40 @@ foreach my $proto ((@tls, @dtls))
        push(@disablables, "$proto-method");
        }
 
-my @deprecated_disablables = (
-    "ssl2",
+my %deprecated_disablables = (
+    "ssl2" => undef,
+    "buf-freelists" => undef,
+    "ripemd" => "rmd160"
     );
 
 # All of the following is disabled by default (RC5 was enabled before 0.9.8):
 
 our %disabled = ( # "what"         => "comment"
+                  "aria"                => "default",
+                  "asan"               => "default",
+                 "crypto-mdebug"       => "default",
+                 "crypto-mdebug-backtrace" => "default",
                  "ec_nistp_64_gcc_128" => "default",
-                 "egd"            => "default",
-                 "md2"            => "default",
-                 "rc5"            => "default",
-                 "sctp"           => "default",
-                 "shared"         => "default",
-                 "ssl-trace"      => "default",
-                 "static-engine"  => "default",
-                 "unit-test"      => "default",
-                 "zlib"           => "default",
-                 "zlib-dynamic"   => "default",
-                 "crypto-mdebug"  => "default",
-                 "heartbeats"     => "default",
+                 "egd"                 => "default",
+                 "external-tests"      => "default",
+                 "fuzz-libfuzzer"      => "default",
+                 "fuzz-afl"            => "default",
+                 "heartbeats"          => "default",
+                 "md2"                 => "default",
+                  "msan"                => "default",
+                 "rc5"                 => "default",
+                 "sctp"                => "default",
+                 "ssl-trace"           => "default",
+                 "ssl3"                => "default",
+                 "ssl3-method"         => "default",
+                  "ubsan"              => "default",
+          #TODO(TLS1.3): Temporarily disabled while this is a WIP
+                 "tls1_3"              => "default",
+                 "tls13downgrade"      => "default",
+                 "unit-test"           => "default",
+                 "weak-ssl-ciphers"    => "default",
+                 "zlib"                => "default",
+                 "zlib-dynamic"        => "default",
                );
 
 # Note: => pair form used for aesthetics, not to truly make a hash table
@@ -352,12 +466,14 @@ my @disable_cascades = (
     "ssl"              => [ "ssl3" ],
     "ssl3-method"      => [ "ssl3" ],
     "zlib"             => [ "zlib-dynamic" ],
-    "rijndael"         => [ "aes" ],
     "des"              => [ "mdc2" ],
     "ec"               => [ "ecdsa", "ecdh" ],
 
-    "dgram"            => [ "dtls" ],
+    "dgram"            => [ "dtls", "sctp" ],
+    "sock"             => [ "dgram" ],
     "dtls"             => [ @dtls ],
+    sub { 0 == scalar grep { !$disabled{$_} } @dtls }
+                       => [ "dtls" ],
 
     # SSL 3.0, (D)TLS 1.0 and TLS 1.1 require MD5 and SHA
     "md5"              => [ "ssl", "tls1", "tls1_1", "dtls1" ],
@@ -374,10 +490,12 @@ my @disable_cascades = (
     sub { $disabled{rsa}
          && ($disabled{dsa} || $disabled{dh})
          && ($disabled{ecdsa} || $disabled{ecdh}); }
-                       => [ "tls1", "tls1_1", "tls1_2",
+                       => [ "tls1", "tls1_1", "tls1_2", "tls1_3",
                             "dtls1", "dtls1_2" ],
 
     "tls"              => [ @tls ],
+    sub { 0 == scalar grep { !$disabled{$_} } @tls }
+                       => [ "tls" ],
 
     # SRP and HEARTBEATS require TLSEXT
     "tlsext"           => [ "srp", "heartbeats" ],
@@ -388,7 +506,20 @@ my @disable_cascades = (
     "dso"               => [ "dynamic-engine" ],
 
     # Without position independent code, there can be no shared libraries or DSOs
-    "pic"               => [ "shared", "dynamic-engine" ],
+    "pic"               => [ "shared" ],
+    "shared"            => [ "dynamic-engine" ],
+    "engine"            => [ "afalgeng" ],
+
+    # no-autoalginit is only useful when building non-shared
+    "autoalginit"       => [ "shared", "apps" ],
+
+    "stdio"             => [ "apps", "capieng" ],
+    "apps"              => [ "tests" ],
+    "comp"              => [ "zlib" ],
+    "ec"                => [ "tls1_3" ],
+    sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
+
+    sub { !$disabled{"msan"} } => [ "asm" ],
     );
 
 # Avoid protocol support holes.  Also disable all versions below N, if version
@@ -413,24 +544,12 @@ while ((my $first, my $second) = (shift @list, shift @list)) {
 # To remove something from %disabled, use "enable-foo".
 # For symmetry, "disable-foo" is a synonym for "no-foo".
 
-my @generated_headers = (
-    "include/openssl/opensslconf.h",
-    "crypto/include/internal/bn_conf.h",
-    "crypto/include/internal/dso_conf.h"
-    );
-
-my @generated_by_make_headers = (
-    "crypto/buildinf.h"
-    );
-
-
 my $no_sse2=0;
 
 &usage if ($#ARGV < 0);
 
 my $user_cflags="";
 my @user_defines=();
-my $unified = 0;
 $config{openssl_api_defines}=[];
 $config{openssl_algorithm_defines}=[];
 $config{openssl_thread_defines}=[];
@@ -441,62 +560,11 @@ my $target="";
 $config{options}="";
 $config{build_type} = "release";
 
-my @argvcopy=@ARGV;
-
-if (grep /^reconf(igure)?$/, @argvcopy) {
-    if (-f "./configdata.pm") {
-       my $file = "./configdata.pm";
-       unless (my $return = do $file) {
-           die "couldn't parse $file: $@" if $@;
-            die "couldn't do $file: $!"    unless defined $return;
-            die "couldn't run $file"       unless $return;
-       }
-
-       @argvcopy = defined($configdata::config{perlargv}) ?
-           @{$configdata::config{perlargv}} : ();
-       die "Incorrect data to reconfigure, please do a normal configuration\n"
-           if (grep(/^reconf/,@argvcopy));
-       $ENV{CROSS_COMPILE} = $configdata::config{cross_compile_prefix}
-           if defined($configdata::config{cross_compile_prefix});
-       $ENV{CROSS_COMPILE} = $configdata::config{cc}
-           if defined($configdata::config{cc});
-
-       print "Reconfiguring with: ", join(" ",@argvcopy), "\n";
-       print "    CROSS_COMPILE = ",$ENV{CROSS_COMPILE},"\n"
-           if $ENV{CROSS_COMPILE};
-       print "    CC = ",$ENV{CC},"\n" if $ENV{CC};
-    } elsif (open IN, "<Makefile") {
-        #
-        # THIS SECTION IS TEMPORARY, it helps transitioning from Makefile
-        # centered information gathering the reading configdata.pm
-        #
-        while (<IN>) {
-            s|\R$||;
-            if (/^CONFIGURE_ARGS=\s*(.*)\s*/) {
-                # Older form, we split the string and hope for the best
-                @argvcopy = split /\s+/, $_;
-                die "Incorrect data to reconfigure, please do a normal configuration\n"
-                    if (grep(/^reconf/,@argvcopy));
-            } elsif (/^CROSS_COMPILE=\s*(.*)/) {
-                $ENV{CROSS_COMPILE}=$1;
-            } elsif (/^CC=\s*(?:\$\(CROSS_COMPILE\))?(.*?)$/) {
-                $ENV{CC}=$1;
-            }
-        }
-        #
-        # END OF TEMPORARY SECTION
-        #
-    } else {
-       die "Insufficient data to reconfigure, please do a normal configuration\n";
-    }
-}
-
-$config{perlargv} = [ @argvcopy ];
-
 my %unsupported_options = ();
 my %deprecated_options = ();
-foreach (@argvcopy)
+while (@argvcopy)
        {
+       $_ = shift @argvcopy;
        # VMS is a case insensitive environment, and depending on settings
        # out of our control, we may receive options uppercased.  Let's
        # downcase at least the part before any equal sign.
@@ -514,21 +582,17 @@ foreach (@argvcopy)
        s /^zlib-dynamic$/enable-zlib-dynamic/;
 
         if (/^(no|disable|enable)-(.+)$/)
-               {
-               my $word = $2;
-               if (grep { $word =~ /^${_}$/ } @deprecated_disablables)
-                       {
-                       $deprecated_options{$_} = 1;
-                       next;
-                       }
-               elsif (!grep { $word =~ /^${_}$/ } @disablables)
-                       {
-                       $unsupported_options{$_} = 1;
-                       next;
-                       }
-               }
-       if (/^no-(.+)$/ || /^disable-(.+)$/)
-               {
+                {
+                my $word = $2;
+                if (!exists $deprecated_disablables{$word}
+                        && !grep { $word =~ /^${_}$/ } @disablables)
+                        {
+                        $unsupported_options{$_} = 1;
+                        next;
+                        }
+                }
+        if (/^no-(.+)$/ || /^disable-(.+)$/)
+                {
                 foreach my $proto ((@tls, @dtls))
                         {
                         if ($1 eq "$proto-method")
@@ -543,6 +607,7 @@ foreach (@argvcopy)
                                 {
                                 $disabled{$proto} = "option(dtls)";
                                 }
+                        $disabled{"dtls"} = "option(dtls)";
                         }
                 elsif ($1 eq "ssl")
                         {
@@ -566,6 +631,14 @@ foreach (@argvcopy)
                         {
                         $disabled{"dynamic-engine"} = "option";
                         }
+                elsif (exists $deprecated_disablables{$1})
+                        {
+                        $deprecated_options{$_} = 1;
+                        if (defined $deprecated_disablables{$1})
+                                {
+                                $disabled{$deprecated_disablables{$1}} = "option";
+                                }
+                        }
                 else
                         {
                         $disabled{$1} = "option";
@@ -609,7 +682,7 @@ foreach (@argvcopy)
                { $config{processor}=386; }
        elsif (/^fips$/)
                {
-               $config{fips}=1;
+               die "FIPS mode not supported\n";
                }
        elsif (/^rsaref$/)
                {
@@ -619,16 +692,11 @@ foreach (@argvcopy)
                }
        elsif (/^nofipscanistercheck$/)
                {
-               $config{fips} = 1;
-               $nofipscanistercheck = 1;
+               die "FIPS mode not supported\n";
                }
        elsif (/^[-+]/)
                {
-               if (/^--unified$/)
-                       {
-                       $unified=1;
-                       }
-               elsif (/^--prefix=(.*)$/)
+               if (/^--prefix=(.*)$/)
                        {
                        $config{prefix}=$1;
                        die "Directory given with --prefix MUST be absolute\n"
@@ -652,15 +720,15 @@ foreach (@argvcopy)
                        }
                elsif (/^--with-zlib-include=(.*)$/)
                        {
-                       $withargs{zlib_include}="-I$1";
+                       $withargs{zlib_include}=$1;
                        }
-               elsif (/^--with-fipslibdir=(.*)$/)
+               elsif (/^--with-fuzzer-lib=(.*)$/)
                        {
-                       $config{fipslibdir}="$1/";
+                       $withargs{fuzzer_lib}=$1;
                        }
-               elsif (/^--with-baseaddr=(.*)$/)
+               elsif (/^--with-fuzzer-include=(.*)$/)
                        {
-                       $config{baseaddr}="$1";
+                       $withargs{fuzzer_include}=$1;
                        }
                elsif (/^--cross-compile-prefix=(.*)$/)
                        {
@@ -674,6 +742,26 @@ foreach (@argvcopy)
                        {
                        $libs.=$_." ";
                        }
+               elsif (/^-framework$/)
+                       {
+                       $libs.=$_." ".shift(@argvcopy)." ";
+                       }
+               elsif (/^-rpath$/ or /^-R$/)
+                       # -rpath is the OSF1 rpath flag
+                       # -R is the old Solaris rpath flag
+                       {
+                       my $rpath = shift(@argvcopy) || "";
+                       $rpath .= " " if $rpath ne "";
+                       $libs.=$_." ".$rpath;
+                       }
+               elsif (/^-static$/)
+                       {
+                       $libs.=$_." ";
+                       $disabled{"dso"} = "forced";
+                       $disabled{"pic"} = "forced";
+                       $disabled{"shared"} = "forced";
+                       $disabled{"threads"} = "forced";
+                       }
                elsif (/^-D(.*)$/)
                        {
                        push @user_defines, $1;
@@ -692,7 +780,7 @@ foreach (@argvcopy)
        unless ($_ eq $target || /^no-/ || /^disable-/)
                {
                # "no-..." follows later after implied disactivations
-               # have been derived.  (Don't take this too seroiusly,
+               # have been derived.  (Don't take this too seriously,
                # we really only write OPTIONS to the Makefile out of
                # nostalgia.)
 
@@ -718,14 +806,12 @@ foreach (@argvcopy)
                }
        }
 
-if ($config{fips})
-       {
-       delete $disabled{"shared"} if ($disabled{"shared"} =~ /^default/);
-       }
-else
-       {
-       @{$config{dirs}} = grep !/^fips$/, @{$config{dirs}};
-       }
+if ($libs =~ /(^|\s)-Wl,-rpath,/
+    && !$disabled{shared}
+    && !($disabled{asan} && $disabled{msan} && $disabled{ubsan})) {
+    die "***** Cannot simultaneously use -rpath, shared libraries, and\n",
+       "***** any of asan, msan or ubsan\n";
+}
 
 my @tocheckfor = (keys %disabled);
 while (@tocheckfor) {
@@ -734,15 +820,17 @@ while (@tocheckfor) {
     while (@cascade_copy) {
        my ($test, $descendents) = (shift @cascade_copy, shift @cascade_copy);
        if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
-           map {
-               $new_tocheckfor{$_} => 1; $disabled{$_} = "forced";
-           } grep { !defined($disabled{$_}) } @$descendents;
+           foreach(grep { !defined($disabled{$_}) } @$descendents) {
+               $new_tocheckfor{$_} = 1; $disabled{$_} = "forced";
+           }
        }
     }
     @tocheckfor = (keys %new_tocheckfor);
 }
 
+our $die = sub { die @_; };
 if ($target eq "TABLE") {
+    local $die = sub { warn @_; };
     foreach (sort keys %table) {
        print_table_entry($_, "TABLE");
     }
@@ -757,6 +845,7 @@ if ($target eq "LIST") {
 }
 
 if ($target eq "HASH") {
+    local $die = sub { warn @_; };
     print "%table = (\n";
     foreach (sort keys %table) {
        print_table_entry($_, "HASH");
@@ -787,6 +876,8 @@ foreach (sort (keys %disabled))
                { }
        elsif (/^dynamic-engine$/)
                { }
+       elsif (/^makedepend$/)
+               { }
        elsif (/^zlib-dynamic$/)
                { }
        elsif (/^sse2$/)
@@ -796,33 +887,35 @@ foreach (sort (keys %disabled))
                @{$config{dirs}} = grep !/^engines$/, @{$config{dirs}};
                @{$config{sdirs}} = grep !/^engine$/, @{$config{sdirs}};
                push @{$config{openssl_other_defines}}, "OPENSSL_NO_ENGINE";
+               print " OPENSSL_NO_ENGINE (skip engines)";
                }
        else
                {
-               my ($ALGO, $algo);
-               ($ALGO = $algo = $_) =~ tr/[\-a-z]/[_A-Z]/;
+               my ($WHAT, $what);
+
+               ($WHAT = $what = $_) =~ tr/[\-a-z]/[_A-Z]/;
+
+               # Fix up C macro end names
+               $WHAT = "RMD160" if $what eq "ripemd";
+
+               # fix-up crypto/directory name(s)
+               $what = "ripemd" if $what eq "rmd160";
+               $what = "whrlpool" if $what eq "whirlpool";
 
-               if (/^asm$/ || /^err$/ || /^hw$/ || /^hw-/ || /^async$/
-                               || /^autoalginit/ || /^autoerrinit/)
+               if ($what ne "async" && $what ne "err"
+                   && grep { $_ eq $what } @{$config{sdirs}})
                        {
-                       push @{$config{openssl_other_defines}}, "OPENSSL_NO_$ALGO";
-                       print " OPENSSL_NO_$ALGO";
+                       push @{$config{openssl_algorithm_defines}}, "OPENSSL_NO_$WHAT";
+                       @{$config{sdirs}} = grep { $_ ne $what} @{$config{sdirs}};
 
-                       if (/^err$/)    { push @user_defines, "OPENSSL_NO_ERR"; }
+                       print " OPENSSL_NO_$WHAT (skip dir)";
                        }
                else
                        {
-                       ($ALGO,$algo) = ("RMD160","rmd160") if ($algo eq "ripemd");
-
-                       push @{$config{openssl_algorithm_defines}}, "OPENSSL_NO_$ALGO";
-                       print " OPENSSL_NO_$ALGO";
-
-                       # fix-up crypto/directory name(s)
-                       $algo="whrlpool" if $algo eq "whirlpool";
-                       $algo="ripemd" if $algo eq "rmd160";
-                       @{$config{sdirs}} = grep { $_ ne $algo} @{$config{sdirs}};
+                       push @{$config{openssl_other_defines}}, "OPENSSL_NO_$WHAT";
+                       print " OPENSSL_NO_$WHAT";
 
-                       print " (skip dir)";
+                       if (/^err$/)    { push @user_defines, "OPENSSL_NO_ERR"; }
                        }
                }
 
@@ -830,7 +923,6 @@ foreach (sort (keys %disabled))
        }
 
 print "Configuring for $target\n";
-
 # Support for legacy targets having a name starting with 'debug-'
 my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
 if ($d) {
@@ -846,12 +938,14 @@ my %target = resolve_config($target);
 
 &usage if (!%target || $target{template});
 
+my %conf_files = map { $_ => 1 } (@{$target{_conf_fname_int}});
+$config{conf_files} = [ sort keys %conf_files ];
 %target = ( %{$table{DEFAULTS}}, %target );
 
+$target{cxxflags}=$target{cflags} unless defined $target{cxxflags};
 $target{exe_extension}="";
 $target{exe_extension}=".exe" if ($config{target} eq "DJGPP"
                                   || $config{target} =~ /^(?:Cygwin|mingw)/);
-$target{exe_extension}=".nlm" if ($config{target} =~ /netware/);
 $target{exe_extension}=".pm"  if ($config{target} =~ /vos/);
 
 ($target{shared_extension_simple}=$target{shared_extension})
@@ -865,17 +959,35 @@ $config{cross_compile_prefix} = $ENV{'CROSS_COMPILE'}
     if $config{cross_compile_prefix} eq "";
 
 # Allow overriding the names of some tools.  USE WITH CARE
-$config{perl} =    $ENV{'PERL'}    || which("perl5") || which("perl") || "perl";
+# Note: only Unix cares about HASHBANGPERL...  that explains
+# the default string.
+$config{perl} =    ($^O ne "VMS" ? $^X : "perl");
+$config{hashbangperl} =
+    $ENV{'HASHBANGPERL'}           || $ENV{'PERL'}     || "/usr/bin/env perl";
 $target{cc} =      $ENV{'CC'}      || $target{cc}      || "cc";
-$target{ranlib} =  $ENV{'RANLIB'}  || $target{ranlib}  || which("ranlib") || "true";
+$target{cxx} =     $ENV{'CXX'}     || $target{cxx}     || "c++";
+$target{ranlib} =  $ENV{'RANLIB'}  || $target{ranlib}  ||
+                   (which("$config{cross_compile_prefix}ranlib") ?
+                          "\$(CROSS_COMPILE)ranlib" : "true");
 $target{ar} =      $ENV{'AR'}      || $target{ar}      || "ar";
 $target{nm} =      $ENV{'NM'}      || $target{nm}      || "nm";
+$target{rc} =
+    $ENV{'RC'}  || $ENV{'WINDRES'} || $target{rc}      || "windres";
+
+# Allow overriding the build file name
+$target{build_file} = $ENV{BUILDFILE} || $target{build_file} || "Makefile";
+
+# Cache information necessary for reconfiguration
+$config{cc} = $target{cc};
+$config{cxx} = $target{cxx};
+$config{build_file} = $target{build_file};
 
 # For cflags, lflags, plib_lflags, ex_libs and defines, add the debug_
 # or release_ attributes.
 # Do it in such a way that no spurious space is appended (hence the grep).
 $config{defines} = [];
 $config{cflags} = "";
+$config{cxxflags} = "";
 $config{ex_libs} = "";
 $config{shared_ldflag} = "";
 
@@ -883,19 +995,30 @@ $config{shared_ldflag} = "";
 $target{build_scheme} = [ $target{build_scheme} ]
     if ref($target{build_scheme}) ne "ARRAY";
 
-###### TO BE REMOVED BEFORE FINAL RELEASE
-######
-###### If the user has chosen --unified, we give it to them.
-###### The same happens if we detect that they try to build out-of-source.
-if ($target{build_file} eq "Makefile"
-    && $target{build_scheme}->[0] eq "unixmake"
-    && ($unified || $srcdir ne $blddir)) {
-    $target{build_scheme} = [ "unified", "unix" ];
-}
-
 my ($builder, $builder_platform, @builder_opts) =
     @{$target{build_scheme}};
 
+foreach my $checker (($builder_platform."-".$target{build_file}."-checker.pm",
+                      $builder_platform."-checker.pm")) {
+    my $checker_path = catfile($srcdir, "Configurations", $checker);
+    if (-f $checker_path) {
+        my $fn = $ENV{CONFIGURE_CHECKER_WARN}
+            ? sub { warn $@; } : sub { die $@; };
+        if (! do $checker_path) {
+            if ($@) {
+                $fn->($@);
+            } elsif ($!) {
+                $fn->($!);
+            } else {
+                $fn->("The detected tools didn't match the platform\n");
+            }
+        }
+        last;
+    }
+}
+
+push @{$config{defines}}, "NDEBUG"    if $config{build_type} eq "release";
+
 if ($target =~ /^mingw/ && `$target{cc} --target-help 2>&1` =~ m/-mno-cygwin/m)
        {
        $config{cflags} .= " -mno-cygwin";
@@ -937,15 +1060,6 @@ if (!$disabled{dso} && $target{dso_scheme} ne "")
 
 $config{ex_libs}="$libs$config{ex_libs}" if ($libs ne "");
 
-if ($disabled{asm})
-       {
-       if ($config{fips})
-               {
-               @{$config{defines}} = grep !/^[BL]_ENDIAN$/, @{$config{defines}};
-               @{$target{defines}} = grep !/^[BL]_ENDIAN$/, @{$target{defines}};
-               }
-       }
-
 # If threads aren't disabled, check how possible they are
 unless ($disabled{threads}) {
     if ($auto_threads) {
@@ -954,7 +1068,7 @@ unless ($disabled{threads}) {
             $disabled{threads} = "unavailable";
         }
     } else {
-        # The user chose to enable threads explicitely, let's see
+        # The user chose to enable threads explicitly, let's see
         # if there's a chance that's possible
         if ($target{thread_scheme} eq "(unknown)") {
             # If the user asked for "threads" and we don't have internal
@@ -986,8 +1100,7 @@ if (defined($disabled{"deprecated"})) {
 if ($target{shared_target} eq "")
        {
        $no_shared_warn = 1
-           if ((!$disabled{shared} || !$disabled{"dynamic-engine"})
-               && !$config{fips});
+           if (!$disabled{shared} || !$disabled{"dynamic-engine"});
        $disabled{shared} = "no-shared-target";
        $disabled{pic} = $disabled{shared} = $disabled{"dynamic-engine"} =
            "no-shared-target";
@@ -1001,6 +1114,24 @@ if ($disabled{"dynamic-engine"}) {
         $config{dynamic_engines} = 1;
 }
 
+unless ($disabled{asan}) {
+    $config{cflags} .= "-fsanitize=address ";
+}
+
+unless ($disabled{ubsan}) {
+    # -DPEDANTIC or -fnosanitize=alignment may also be required on some
+    # platforms.
+    $config{cflags} .= "-fsanitize=undefined -fno-sanitize-recover=all ";
+}
+
+unless ($disabled{msan}) {
+  $config{cflags} .= "-fsanitize=memory ";
+}
+
+unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
+        && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
+    $config{cflags} .= "-fno-omit-frame-pointer -g ";
+}
 #
 # Platform fix-ups
 #
@@ -1033,15 +1164,14 @@ unless ($disabled{asm}) {
     push @{$config{defines}}, "OPENSSL_BN_ASM_MONT5" if ($target{bn_asm_src} =~ /-mont5/);
     push @{$config{defines}}, "OPENSSL_BN_ASM_GF2m" if ($target{bn_asm_src} =~ /-gf2m/);
 
-    if ($config{fips}) {
-       push @{$config{openssl_other_defines}}, "OPENSSL_FIPS";
-    }
-
     if ($target{sha1_asm_src}) {
        push @{$config{defines}}, "SHA1_ASM"   if ($target{sha1_asm_src} =~ /sx86/ || $target{sha1_asm_src} =~ /sha1/);
        push @{$config{defines}}, "SHA256_ASM" if ($target{sha1_asm_src} =~ /sha256/);
        push @{$config{defines}}, "SHA512_ASM" if ($target{sha1_asm_src} =~ /sha512/);
     }
+    if ($target{rc4_asm_src} ne $table{DEFAULTS}->{rc4_asm_src}) {
+       push @{$config{defines}}, "RC4_ASM";
+    }
     if ($target{md5_asm_src}) {
        push @{$config{defines}}, "MD5_ASM";
     }
@@ -1073,27 +1203,41 @@ unless ($disabled{asm}) {
     if ($target{ec_asm_src} =~ /ecp_nistz256/) {
        push @{$config{defines}}, "ECP_NISTZ256_ASM";
     }
+    if ($target{padlock_asm_src} ne $table{DEFAULTS}->{padlock_asm_src}) {
+       push @{$config{defines}}, "PADLOCK_ASM";
+    }
     if ($target{poly1305_asm_src} ne "") {
        push @{$config{defines}}, "POLY1305_ASM";
     }
 }
 
 my $ecc = $target{cc};
-if ($^O ne "VMS") {
+if ($^O ne "VMS" && !$disabled{makedepend}) {
     # Is the compiler gcc or clang?  $ecc is used below to see if
     # error-checking can be turned on.
     my $ccpcc = "$config{cross_compile_prefix}$target{cc}";
-    $config{makedepprog} = 'makedepend';
-    open(PIPE, "$ccpcc --version 2>&1 | head -2 |");
+    open(PIPE, "$ccpcc --version 2>&1 |");
+    my $lines = 2;
     while ( <PIPE> ) {
-        $config{makedepprog} = $ccpcc if /clang|gcc/;
+        # Find the version number and save the major.
+        m|(?:.*)\b(\d+)\.\d+\.\d+\b(?:.*)|;
+        my $compiler_major = $1;
+        # We know that GNU C version 3 and up as well as all clang
+        # versions support dependency generation
+        $config{makedepprog} = $ccpcc
+            if (/clang/ || (/gcc/ && $compiler_major >= 3));
         $ecc = "clang" if /clang/;
         $ecc = "gcc" if /gcc/;
+        last if ($config{makedepprog} || !$lines--);
     }
     close(PIPE);
+
+    $config{makedepprog} = which('makedepend') unless $config{makedepprog};
+    $disabled{makedepend} = "unavailable" unless $config{makedepprog};
 }
 
 
+
 # Deal with bn_ops ###################################################
 
 $config{bn_ll}                 =0;
@@ -1123,7 +1267,7 @@ die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set
 
 # "Stringify" the C flags string.  This permits it to be made part of a string
 # and works as well on command lines.
-$config{cflags} =~ s/([\\\"])/\\\1/g;
+$config{cflags} =~ s/([\\\"])/\\$1/g;
 
 if (defined($config{api})) {
     $config{openssl_api_defines} = [ "OPENSSL_MIN_API=".$apitable->{$config{api}} ];
@@ -1161,27 +1305,42 @@ unless ($disabled{"crypto-mdebug-backtrace"})
                }
        }
 
-if ($user_cflags ne "") { $config{cflags}="$config{cflags}$user_cflags"; }
+if ($user_cflags ne "") { $config{cflags}="$config{cflags}$user_cflags"; $config{cxxflags}="$config{cxxflags}$user_cflags";}
 else                    { $no_user_cflags=1;  }
 if (@user_defines) { $config{defines}=[ @{$config{defines}}, @user_defines ]; }
 else               { $no_user_defines=1;    }
 
 # ALL MODIFICATIONS TO %config and %target MUST BE DONE FROM HERE ON
 
+unless ($disabled{afalgeng}) {
+    $config{afalgeng}="";
+    if ($target =~ m/^linux/) {
+        my $minver = 4*10000 + 1*100 + 0;
+        if ($config{cross_compile_prefix} eq "") {
+            my $verstr = `uname -r`;
+            my ($ma, $mi1, $mi2) = split("\\.", $verstr);
+            ($mi2) = $mi2 =~ /(\d+)/;
+            my $ver = $ma*10000 + $mi1*100 + $mi2;
+            if ($ver < $minver) {
+                $disabled{afalgeng} = "too-old-kernel";
+            } else {
+                push @{$config{engdirs}}, "afalg";
+            }
+        } else {
+            $disabled{afalgeng} = "cross-compiling";
+        }
+    } else {
+        $disabled{afalgeng}  = "not-linux";
+    }
+}
+
+push @{$config{openssl_other_defines}}, "OPENSSL_NO_AFALGENG" if ($disabled{afalgeng});
+
 # If we use the unified build, collect information from build.info files
 my %unified_info = ();
 
+my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
 if ($builder eq "unified") {
-    # Store the name of the template file we will build the build file from
-    # in %config.  This may be useful for the build file itself.
-    my $build_file_template =
-        catfile($srcdir, "Configurations",
-                $builder_platform."-".$target{build_file}.".tmpl");
-    $build_file_template =
-        catfile($srcdir, "Configurations", $target{build_file}.".tmpl")
-        if (! -f $build_file_template);
-    $config{build_file_template} = $build_file_template;
-
     use lib catdir(dirname(__FILE__),"util");
     use with_fallback qw(Text::Template);
 
@@ -1218,6 +1377,47 @@ if ($builder eq "unified") {
         return $res;
     }
 
+    # Store the name of the template file we will build the build file from
+    # in %config.  This may be useful for the build file itself.
+    my @build_file_template_names =
+       ( $builder_platform."-".$target{build_file}.".tmpl",
+         $target{build_file}.".tmpl" );
+    my @build_file_templates = ();
+
+    # First, look in the user provided directory, if given
+    if (defined $ENV{$local_config_envname}) {
+       @build_file_templates =
+           map {
+               if ($^O eq 'VMS') {
+                   # VMS environment variables are logical names,
+                   # which can be used as is
+                   $local_config_envname . ':' . $_;
+               } else {
+                   catfile($ENV{$local_config_envname}, $_);
+               }
+           }
+           @build_file_template_names;
+    }
+    # Then, look in our standard directory
+    push @build_file_templates,
+       ( map { cleanfile($srcdir, catfile("Configurations", $_), $blddir) }
+         @build_file_template_names );
+
+    my $build_file_template;
+    for $_ (@build_file_templates) {
+       $build_file_template = $_;
+        last if -f $build_file_template;
+
+        $build_file_template = undef;
+    }
+    if (!defined $build_file_template) {
+       die "*** Couldn't find any of:\n", join("\n", @build_file_templates), "\n";
+    }
+    $config{build_file_templates}
+      = [ $build_file_template,
+          cleanfile($srcdir, catfile("Configurations", "common.tmpl"),
+                    $blddir) ];
+
     my @build_infos = ( [ ".", "build.info" ] );
     foreach (@{$config{dirs}}) {
         push @build_infos, [ $_, "build.info" ]
@@ -1231,6 +1431,10 @@ if ($builder eq "unified") {
         push @build_infos, [ catdir("engines", $_), "build.info" ]
             if (-f catfile($srcdir, "engines", $_, "build.info"));
     }
+    foreach (@{$config{tdirs}}) {
+        push @build_infos, [ catdir("test", $_), "build.info" ]
+            if (-f catfile($srcdir, "test", $_, "build.info"));
+    }
 
     $config{build_infos} = [ ];
 
@@ -1243,19 +1447,26 @@ if ($builder eq "unified") {
         my $f = $_->[1];
         # The basic things we're trying to build
         my @programs = ();
+        my @programs_install = ();
         my @libraries = ();
+        my @libraries_install = ();
         my @engines = ();
+        my @engines_install = ();
         my @scripts = ();
+        my @scripts_install = ();
         my @extra = ();
+        my @overrides = ();
         my @intermediates = ();
         my @rawlines = ();
 
         my %ordinals = ();
         my %sources = ();
+        my %shared_sources = ();
         my %includes = ();
         my %depends = ();
         my %renames = ();
         my %sharednames = ();
+        my %generate = ();
 
         push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
         my $template = Text::Template->new(TYPE => 'FILE',
@@ -1266,6 +1477,7 @@ if ($builder eq "unified") {
             $template->fill_in(HASH => { config => \%config,
                                          target => \%target,
                                          disabled => \%disabled,
+                                         withargs => \%withargs,
                                          builddir => abs2rel($buildd, $blddir),
                                          sourcedir => abs2rel($sourced, $blddir),
                                          buildtop => abs2rel($blddir, $blddir),
@@ -1285,7 +1497,13 @@ if ($builder eq "unified") {
                                                 $l1 =~ s/\\$//; $l1.$l2 }),
             # Info we're looking for
             qr/^\s*IF\[((?:\\.|[^\\\]])*)\]\s*$/
-            => sub { push @skip, !! $1; },
+            => sub {
+                if (! @skip || $skip[$#skip] > 0) {
+                    push @skip, !! $1;
+                } else {
+                    push @skip, -1;
+                }
+            },
             qr/^\s*ELSIF\[((?:\\.|[^\\\]])*)\]\s*$/
             => sub { die "ELSIF out of scope" if ! @skip;
                      die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
@@ -1299,39 +1517,72 @@ if ($builder eq "unified") {
             qr/^\s*ENDIF\s*$/
             => sub { die "ENDIF out of scope" if ! @skip;
                      pop @skip; },
-            qr/^\s*PROGRAMS\s*=\s*(.*)\s*$/
-            => sub { push @programs, split(/\s+/, $1)
-                         if !@skip || $skip[$#skip] > 0 },
-            qr/^\s*LIBS\s*=\s*(.*)\s*$/
-            => sub { push @libraries, split(/\s+/, $1)
-                         if !@skip || $skip[$#skip] > 0 },
-            qr/^\s*ENGINES\s*=\s*(.*)\s*$/
-            => sub { push @engines, split(/\s+/, $1)
-                         if !@skip || $skip[$#skip] > 0 },
-            qr/^\s*SCRIPTS\s*=\s*(.*)\s*$/
-            => sub { push @scripts, split(/\s+/, $1)
-                         if !@skip || $skip[$#skip] > 0 },
+            qr/^\s*PROGRAMS(_NO_INST)?\s*=\s*(.*)\s*$/
+            => sub {
+                if (!@skip || $skip[$#skip] > 0) {
+                    my $install = $1;
+                    my @x = tokenize($2);
+                    push @programs, @x;
+                    push @programs_install, @x unless $install;
+                }
+            },
+            qr/^\s*LIBS(_NO_INST)?\s*=\s*(.*)\s*$/
+            => sub {
+                if (!@skip || $skip[$#skip] > 0) {
+                    my $install = $1;
+                    my @x = tokenize($2);
+                    push @libraries, @x;
+                    push @libraries_install, @x unless $install;
+                }
+            },
+            qr/^\s*ENGINES(_NO_INST)?\s*=\s*(.*)\s*$/
+            => sub {
+                if (!@skip || $skip[$#skip] > 0) {
+                    my $install = $1;
+                    my @x = tokenize($2);
+                    push @engines, @x;
+                    push @engines_install, @x unless $install;
+                }
+            },
+            qr/^\s*SCRIPTS(_NO_INST)?\s*=\s*(.*)\s*$/
+            => sub {
+                if (!@skip || $skip[$#skip] > 0) {
+                    my $install = $1;
+                    my @x = tokenize($2);
+                    push @scripts, @x;
+                    push @scripts_install, @x unless $install;
+                }
+            },
             qr/^\s*EXTRA\s*=\s*(.*)\s*$/
-            => sub { push @extra, split(/\s+/, $1)
+            => sub { push @extra, tokenize($1)
+                         if !@skip || $skip[$#skip] > 0 },
+            qr/^\s*OVERRIDES\s*=\s*(.*)\s*$/
+            => sub { push @overrides, tokenize($1)
                          if !@skip || $skip[$#skip] > 0 },
 
             qr/^\s*ORDINALS\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/,
-            => sub { push @{$ordinals{$1}}, split(/\s+/, $2)
+            => sub { push @{$ordinals{$1}}, tokenize($2)
                          if !@skip || $skip[$#skip] > 0 },
             qr/^\s*SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
-            => sub { push @{$sources{$1}}, split(/\s+/, $2)
+            => sub { push @{$sources{$1}}, tokenize($2)
+                         if !@skip || $skip[$#skip] > 0 },
+            qr/^\s*SHARED_SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
+            => sub { push @{$shared_sources{$1}}, tokenize($2)
                          if !@skip || $skip[$#skip] > 0 },
             qr/^\s*INCLUDE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
-            => sub { push @{$includes{$1}}, split(/\s+/, $2)
+            => sub { push @{$includes{$1}}, tokenize($2)
+                         if !@skip || $skip[$#skip] > 0 },
+            qr/^\s*DEPEND\[((?:\\.|[^\\\]])*)\]\s*=\s*(.*)\s*$/
+            => sub { push @{$depends{$1}}, tokenize($2)
                          if !@skip || $skip[$#skip] > 0 },
-            qr/^\s*DEPEND\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
-            => sub { push @{$depends{$1}}, split(/\s+/, $2)
+            qr/^\s*GENERATE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
+            => sub { push @{$generate{$1}}, $2
                          if !@skip || $skip[$#skip] > 0 },
             qr/^\s*RENAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
-            => sub { push @{$renames{$1}}, split(/\s+/, $2)
+            => sub { push @{$renames{$1}}, tokenize($2)
                          if !@skip || $skip[$#skip] > 0 },
             qr/^\s*SHARED_NAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
-            => sub { push @{$sharednames{$1}}, split(/\s+/, $2)
+            => sub { push @{$sharednames{$1}}, tokenize($2)
                          if !@skip || $skip[$#skip] > 0 },
             qr/^\s*BEGINRAW\[((?:\\.|[^\\\]])+)\]\s*$/
             => sub {
@@ -1350,8 +1601,19 @@ if ($builder eq "unified") {
                             || $target_kind eq $target{build_file}."(".$builder_platform.")");
                 }
             },
-            qr/^(?:#.*|\s*)$/ => sub { },
-            "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" }
+            qr/^\s*(?:#.*)?$/ => sub { },
+            "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
+            "BEFORE" => sub {
+                if ($buildinfo_debug) {
+                    print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
+                    print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
+                }
+            },
+            "AFTER" => sub {
+                if ($buildinfo_debug) {
+                    print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
+                }
+            },
             );
         die "runaway IF?" if (@skip);
 
@@ -1376,6 +1638,14 @@ if ($builder eq "unified") {
             $unified_info{programs}->{$program} = 1;
         }
 
+        foreach (@programs_install) {
+            my $program = cleanfile($buildd, $_, $blddir);
+            if ($unified_info{rename}->{$program}) {
+                $program = $unified_info{rename}->{$program};
+            }
+            $unified_info{install}->{programs}->{$program} = 1;
+        }
+
         foreach (@libraries) {
             my $library = cleanfile($buildd, $_, $blddir);
             if ($unified_info{rename}->{$library}) {
@@ -1384,6 +1654,14 @@ if ($builder eq "unified") {
             $unified_info{libraries}->{$library} = 1;
         }
 
+        foreach (@libraries_install) {
+            my $library = cleanfile($buildd, $_, $blddir);
+            if ($unified_info{rename}->{$library}) {
+                $library = $unified_info{rename}->{$library};
+            }
+            $unified_info{install}->{libraries}->{$library} = 1;
+        }
+
         die <<"EOF" if scalar @engines and !$config{dynamic_engines};
 ENGINES can only be used if configured with 'dynamic-engine'.
 This is usually a fault in a build.info file.
@@ -1396,6 +1674,14 @@ EOF
             $unified_info{engines}->{$library} = 1;
         }
 
+        foreach (@engines_install) {
+            my $library = cleanfile($buildd, $_, $blddir);
+            if ($unified_info{rename}->{$library}) {
+                $library = $unified_info{rename}->{$library};
+            }
+            $unified_info{install}->{engines}->{$library} = 1;
+        }
+
         foreach (@scripts) {
             my $script = cleanfile($buildd, $_, $blddir);
             if ($unified_info{rename}->{$script}) {
@@ -1404,11 +1690,24 @@ EOF
             $unified_info{scripts}->{$script} = 1;
         }
 
+        foreach (@scripts_install) {
+            my $script = cleanfile($buildd, $_, $blddir);
+            if ($unified_info{rename}->{$script}) {
+                $script = $unified_info{rename}->{$script};
+            }
+            $unified_info{install}->{scripts}->{$script} = 1;
+        }
+
         foreach (@extra) {
             my $extra = cleanfile($buildd, $_, $blddir);
             $unified_info{extra}->{$extra} = 1;
         }
 
+        foreach (@overrides) {
+            my $override = cleanfile($buildd, $_, $blddir);
+            $unified_info{overrides}->{$override} = 1;
+        }
+
         push @{$unified_info{rawlines}}, @rawlines;
 
         unless ($disabled{shared}) {
@@ -1432,12 +1731,24 @@ EOF
             }
 
             # Additionally, we set up sharednames for libraries that don't
-            # have any, as themselves.
-            foreach (keys %{$unified_info{libraries}}) {
+            # have any, as themselves.  Only for libraries that aren't
+            # explicitely static.
+            foreach (grep !/\.a$/, keys %{$unified_info{libraries}}) {
                 if (!defined $unified_info{sharednames}->{$_}) {
                     $unified_info{sharednames}->{$_} = $_
                 }
             }
+
+            # Check that we haven't defined any library as both shared and
+            # explicitely static.  That is forbidden.
+            my @doubles = ();
+            foreach (grep /\.a$/, keys %{$unified_info{libraries}}) {
+                (my $l = $_) =~ s/\.a$//;
+                push @doubles, $l if defined $unified_info{sharednames}->{$l};
+            }
+            die "these libraries are both explicitely static and shared:\n  ",
+                join(" ", @doubles), "\n"
+                if @doubles;
         }
 
         foreach (keys %ordinals) {
@@ -1450,9 +1761,9 @@ EOF
                 my %known_ordinals =
                     (
                      crypto =>
-                     cleanfile($sourced, catfile("util", "libeay.num"), $blddir),
+                     cleanfile($sourced, catfile("util", "libcrypto.num"), $blddir),
                      ssl =>
-                     cleanfile($sourced, catfile("util", "ssleay.num"), $blddir)
+                     cleanfile($sourced, catfile("util", "libssl.num"), $blddir)
                     );
                 my $o = $known_ordinals{$_};
                 die "Ordinals for $ddest defined more than once\n"
@@ -1475,9 +1786,11 @@ EOF
                 if (! -f $s) {
                     $s = cleanfile($buildd, $_, $blddir);
                 }
-                # We recognise C and asm files
-                if ($s =~ /\.[csS]\b$/) {
-                    (my $o = $_) =~ s/\.[csS]\b$/.o/;
+                # We recognise C++, C and asm files
+                if ($s =~ /\.(cc|cpp|c|s|S)$/) {
+                    my $o = $_;
+                    $o =~ s/\.[csS]$/.o/; # C and assembler
+                    $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
                     $o = cleanfile($buildd, $o, $blddir);
                     $unified_info{sources}->{$ddest}->{$o} = 1;
                     $unified_info{sources}->{$o}->{$s} = 1;
@@ -1487,12 +1800,60 @@ EOF
             }
         }
 
-        foreach (keys %depends) {
+        foreach (keys %shared_sources) {
             my $dest = $_;
             my $ddest = cleanfile($buildd, $_, $blddir);
             if ($unified_info{rename}->{$ddest}) {
                 $ddest = $unified_info{rename}->{$ddest};
             }
+            foreach (@{$shared_sources{$dest}}) {
+                my $s = cleanfile($sourced, $_, $blddir);
+
+                # If it isn't in the source tree, we assume it's generated
+                # in the build tree
+                if (! -f $s) {
+                    $s = cleanfile($buildd, $_, $blddir);
+                }
+                # We recognise C++, C and asm files
+                if ($s =~ /\.(cc|cpp|c|s|S)$/) {
+                    my $o = $_;
+                    $o =~ s/\.[csS]$/.o/; # C and assembler
+                    $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
+                    $o = cleanfile($buildd, $o, $blddir);
+                    $unified_info{shared_sources}->{$ddest}->{$o} = 1;
+                    $unified_info{sources}->{$o}->{$s} = 1;
+                } else {
+                    die "unrecognised source file type for shared library: $s\n";
+                }
+            }
+        }
+
+        foreach (keys %generate) {
+            my $dest = $_;
+            my $ddest = cleanfile($buildd, $_, $blddir);
+            if ($unified_info{rename}->{$ddest}) {
+                $ddest = $unified_info{rename}->{$ddest};
+            }
+            die "more than one generator for $dest: "
+                    ,join(" ", @{$generate{$_}}),"\n"
+                    if scalar @{$generate{$_}} > 1;
+            my @generator = split /\s+/, $generate{$dest}->[0];
+            $generator[0] = cleanfile($sourced, $generator[0], $blddir),
+            $unified_info{generate}->{$ddest} = [ @generator ];
+        }
+
+        foreach (keys %depends) {
+            my $dest = $_;
+            my $ddest = $dest eq "" ? "" : cleanfile($sourced, $_, $blddir);
+
+            # If the destination doesn't exist in source, it can only be
+            # a generated file in the build tree.
+            if ($ddest ne "" && ! -f $ddest) {
+                $ddest = cleanfile($buildd, $_, $blddir);
+                if ($unified_info{rename}->{$ddest}) {
+                    $ddest = $unified_info{rename}->{$ddest};
+                }
+            }
             foreach (@{$depends{$dest}}) {
                 my $d = cleanfile($sourced, $_, $blddir);
 
@@ -1502,52 +1863,84 @@ EOF
                 # and that there are lines to build it in a BEGINRAW..ENDRAW
                 # section or in the Makefile template.
                 if (! -f $d
-                    || !(grep { $d eq $_ }
-                         map { cleanfile($srcdir, $_, $blddir) }
-                         (@generated_headers, @generated_by_make_headers))) {
+                    || (grep { $d eq $_ }
+                        map { cleanfile($srcdir, $_, $blddir) }
+                        grep { /\.h$/ } keys %{$unified_info{generate}})) {
                     $d = cleanfile($buildd, $_, $blddir);
                 }
                 # Take note if the file to depend on is being renamed
+                # Take extra care with files ending with .a, they should
+                # be treated without that extension, and the extension
+                # should be added back after treatment.
+                $d =~ /(\.a)?$/;
+                my $e = $1 // "";
+                $d = $`;
                 if ($unified_info{rename}->{$d}) {
                     $d = $unified_info{rename}->{$d};
                 }
+                $d .= $e;
                 $unified_info{depends}->{$ddest}->{$d} = 1;
-                # If we depend on a header file, let's make sure it
-                # can get included
-                if ($d =~ /\.h$/) {
+                # If we depend on a header file or a perl module, let's make
+                # sure it can get included
+                if ($dest ne "" && $d =~ /\.(h|pm)$/) {
                     my $i = dirname($d);
-                    push @{$unified_info{includes}->{$ddest}}, $i
-                        unless grep { $_ eq $i } @{$unified_info{includes}->{$ddest}};
+                    push @{$unified_info{includes}->{$ddest}->{source}}, $i
+                        unless grep { $_ eq $i } @{$unified_info{includes}->{$ddest}->{source}};
                 }
             }
         }
 
         foreach (keys %includes) {
             my $dest = $_;
-            my $ddest = cleanfile($buildd, $_, $blddir);
-            if ($unified_info{rename}->{$ddest}) {
-                $ddest = $unified_info{rename}->{$ddest};
+            my $ddest = cleanfile($sourced, $_, $blddir);
+
+            # If the destination doesn't exist in source, it can only be
+            # a generated file in the build tree.
+            if (! -f $ddest) {
+                $ddest = cleanfile($buildd, $_, $blddir);
+                if ($unified_info{rename}->{$ddest}) {
+                    $ddest = $unified_info{rename}->{$ddest};
+                }
             }
             foreach (@{$includes{$dest}}) {
-                my $i = cleandir($sourced, $_, $blddir);
-                push @{$unified_info{includes}->{$ddest}}, $i
-                    unless grep { $_ eq $i } @{$unified_info{includes}->{$ddest}};
+                my $is = cleandir($sourced, $_, $blddir);
+                my $ib = cleandir($buildd, $_, $blddir);
+                push @{$unified_info{includes}->{$ddest}->{source}}, $is
+                    unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
+                push @{$unified_info{includes}->{$ddest}->{build}}, $ib
+                    unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
             }
         }
     }
 
     ### Make unified_info a bit more efficient
     # One level structures
-    foreach (("programs", "libraries", "engines", "scripts", "extra")) {
+    foreach (("programs", "libraries", "engines", "scripts", "extra", "overrides")) {
         $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
     }
     # Two level structures
-    foreach my $l1 (("sources", "ldadd", "depends")) {
+    foreach my $l1 (("install", "sources", "shared_sources", "ldadd", "depends")) {
         foreach my $l2 (sort keys %{$unified_info{$l1}}) {
             $unified_info{$l1}->{$l2} =
                 [ sort keys %{$unified_info{$l1}->{$l2}} ];
         }
     }
+    # Includes
+    foreach my $dest (sort keys %{$unified_info{includes}}) {
+        if (defined($unified_info{includes}->{$dest}->{build})) {
+            my @source_includes =
+                ( @{$unified_info{includes}->{$dest}->{source}} );
+            $unified_info{includes}->{$dest} =
+                [ @{$unified_info{includes}->{$dest}->{build}} ];
+            foreach my $inc (@source_includes) {
+                push @{$unified_info{includes}->{$dest}}, $inc
+                    unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
+            }
+        } else {
+            $unified_info{includes}->{$dest} =
+                [ @{$unified_info{includes}->{$dest}->{source}} ];
+        }
+    }
 }
 
 # For the schemes that need it, we provide the old *_obj configs
@@ -1555,7 +1948,9 @@ EOF
 foreach (grep /_(asm|aux)_src$/, keys %target) {
     my $src = $_;
     (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
-    ($target{$obj} = $target{$src}) =~ s/\.[csS]\b/.o/g;
+    $target{$obj} = $target{$src};
+    $target{$obj} =~ s/\.[csS]\b/.o/g; # C and assembler
+    $target{$obj} =~ s/\.(cc|cpp)\b/_cc.o/g; # C++
 }
 
 # Write down our configuration where it fits #########################
@@ -1570,7 +1965,7 @@ use warnings;
 use Exporter;
 #use vars qw(\@ISA \@EXPORT);
 our \@ISA = qw(Exporter);
-our \@EXPORT = qw(\%config \%target %disabled %withargs %unified_info);
+our \@EXPORT = qw(\%config \%target \%disabled \%withargs \%unified_info \@disablables);
 
 EOF
 print OUT "our %config = (\n";
@@ -1607,6 +2002,14 @@ print OUT "  dtls => [ ", join(", ", map { quotify("perl", $_) } @dtls), " ],\n"
 print OUT <<"EOF";
 );
 
+EOF
+print OUT "our \@disablables = (\n";
+foreach (@disablables) {
+    print OUT "  ", quotify("perl", $_), ",\n";
+}
+print OUT <<"EOF";
+);
+
 EOF
 print OUT "our \%disabled = (\n";
 foreach (sort keys %disabled) {
@@ -1675,173 +2078,32 @@ EOF
 print OUT "1;\n";
 close(OUT);
 
-
-print "IsMK1MF       =", ($builder eq "mk1mf" ? "yes" : "no"), "\n";
-print "CC            =$target{cc}\n";
+print "\n";
+print "PROCESSOR     =$config{processor}\n" if $config{processor};
+print "PERL          =$config{perl}\n";
+print "PERLVERSION   =$Config{version} for $Config{archname}\n";
+print "HASHBANGPERL  =$config{hashbangperl}\n";
+print "CC            =$config{cross_compile_prefix}$target{cc}\n";
 print "CFLAG         =$target{cflags} $config{cflags}\n";
+print "CXX           =$config{cross_compile_prefix}$target{cxx}\n"
+    if defined $target{cxx};
+print "CXXFLAG       =$target{cxxflags} $config{cxxflags}\n"
+    if defined $target{cxx};
 print "DEFINES       =",join(" ", @{$target{defines}}, @{$config{defines}}),"\n";
-print "LFLAG         =$target{lflags}\n";
-print "PLIB_LFLAG    =$target{plib_lflags}\n";
+#print "RANLIB        =", $target{ranlib} eq '$(CROSS_COMPILE)ranlib' ?
+#                             "$config{cross_compile_prefix}ranlib" :
+#                             "$target{ranlib}", "\n";
 print "EX_LIBS       =$target{ex_libs} $config{ex_libs}\n";
-print "APPS_OBJ      =$target{apps_obj}\n";
-print "CPUID_OBJ     =$target{cpuid_obj}\n";
-print "UPLINK_OBJ    =$target{uplink_obj}\n";
-print "BN_ASM        =$target{bn_obj}\n";
-print "EC_ASM        =$target{ec_obj}\n";
-print "DES_ENC       =$target{des_obj}\n";
-print "AES_ENC       =$target{aes_obj}\n";
-print "BF_ENC        =$target{bf_obj}\n";
-print "CAST_ENC      =$target{cast_obj}\n";
-print "RC4_ENC       =$target{rc4_obj}\n";
-print "RC5_ENC       =$target{rc5_obj}\n";
-print "MD5_OBJ_ASM   =$target{md5_obj}\n";
-print "SHA1_OBJ_ASM  =$target{sha1_obj}\n";
-print "RMD160_OBJ_ASM=$target{rmd160_obj}\n";
-print "CMLL_ENC      =$target{cmll_obj}\n";
-print "MODES_OBJ     =$target{modes_obj}\n";
-print "PADLOCK_OBJ   =$target{padlock_obj}\n";
-print "CHACHA_ENC    =$target{chacha_obj}\n";
-print "POLY1305_OBJ  =$target{poly1305_obj}\n";
-print "PROCESSOR     =$config{processor}\n";
-print "RANLIB        =$target{ranlib}\n";
-print "ARFLAGS       =$target{arflags}\n";
-print "PERL          =$config{perl}\n";
-print "\n";
-print "SIXTY_FOUR_BIT_LONG mode\n" if $config{b64l};
-print "SIXTY_FOUR_BIT mode\n" if $config{b64};
-print "THIRTY_TWO_BIT mode\n" if $config{b32};
-print "BN_LLONG mode\n" if $config{bn_ll};
-print "RC4 uses $config{rc4_int}\n" if $config{rc4_int} != $def_int;
-
-for (@generated_headers) {
-    mkpath(catdir($blddir, dirname($_)));
-    run_dofile(catfile($blddir, $_),
-               catfile($srcdir, $_.".in"));
-}
-
-###
-### When the old "unixmake" scheme goes away, so does this function
-###
-sub build_Makefile {
-    run_dofile("Makefile","Makefile.in");
-
-    # Copy all Makefile.in to Makefile (except top-level)
-    use File::Find;
-    use IO::File;
-    find(
-        {
-            preprocess => sub {
-                grep(!/^\./, @_);
-            },
-            wanted => sub {
-                return if ($_ ne "Makefile.in" || $File::Find::dir eq ".");
-                my $in = IO::File->new($_, "r") or
-                    die sprintf "Error reading Makefile.in in %s: !$\n",
-                    $File::Find::dir;
-                my $out = IO::File->new("Makefile", "w") or
-                    die sprintf "Error writing Makefile in %s: !$\n",
-                    $File::Find::dir;
-                print $out "# Generated from $_, do not edit\n";
-                while (my $line = <$in>) { print $out $line }
-                $in->close() or
-                    die sprintf "Error reading Makefile.in in %s: !$\n",
-                    $File::Find::dir;
-                $out->close() or
-                    die sprintf "Error writing Makefile in %s: !$\n",
-                    $File::Find::dir;
-            },
-        },
-        ".");
-}
 
 my %builders = (
     unified => sub {
         run_dofile(catfile($blddir, $target{build_file}),
-                   $config{build_file_template},
-                   catfile($srcdir, "Configurations", "common.tmpl"));
-    },
-    unixmake => sub {
-        build_Makefile();
-
-        run_dofile("util/domd", "util/domd.in");
-        chmod 0755, "util/domd";
-    },
-    mk1mf => sub {
-        my $platform = shift;
-        # The only reason we do this is to have something to build MINFO from
-        build_Makefile();
-
-       # create the ms/version32.rc file if needed
-       if ($platform ne "netware") {
-           my ($v1, $v2, $v3, $v4);
-           if ($config{version_num} =~ /^0x([0-9a-f]{1})([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{1})L$/i) {
-               $v1=hex $1;
-               $v2=hex $2;
-               $v3=hex $3;
-               $v4=hex $4;
-           }
-           open (OUT,">ms/version32.rc") || die "Can't open ms/version32.rc";
-           print OUT <<"EOF";
-#include <winver.h>
-
-LANGUAGE 0x09,0x01
-
-1 VERSIONINFO
-  FILEVERSION $v1,$v2,$v3,$v4
-  PRODUCTVERSION $v1,$v2,$v3,$v4
-  FILEFLAGSMASK 0x3fL
-#ifdef _DEBUG
-  FILEFLAGS 0x01L
-#else
-  FILEFLAGS 0x00L
-#endif
-  FILEOS VOS__WINDOWS32
-  FILETYPE VFT_DLL
-  FILESUBTYPE 0x0L
-BEGIN
-    BLOCK "StringFileInfo"
-    BEGIN
-       BLOCK "040904b0"
-       BEGIN
-           // Required:
-           VALUE "CompanyName", "The OpenSSL Project, http://www.openssl.org/\\0"
-           VALUE "FileDescription", "OpenSSL Shared Library\\0"
-           VALUE "FileVersion", "$config{version}\\0"
-#if defined(CRYPTO)
-           VALUE "InternalName", "libeay32\\0"
-           VALUE "OriginalFilename", "libeay32.dll\\0"
-#elif defined(SSL)
-           VALUE "InternalName", "ssleay32\\0"
-           VALUE "OriginalFilename", "ssleay32.dll\\0"
-#endif
-           VALUE "ProductName", "The OpenSSL Toolkit\\0"
-           VALUE "ProductVersion", "$config{version}\\0"
-           // Optional:
-           //VALUE "Comments", "\\0"
-           VALUE "LegalCopyright", "Copyright © 1998-2015 The OpenSSL Project. Copyright © 1995-1998 Eric A. Young, Tim J. Hudson. All rights reserved.\\0"
-           //VALUE "LegalTrademarks", "\\0"
-           //VALUE "PrivateBuild", "\\0"
-           //VALUE "SpecialBuild", "\\0"
-       END
-    END
-    BLOCK "VarFileInfo"
-    BEGIN
-        VALUE "Translation", 0x409, 0x4b0
-    END
-END
-EOF
-           close(OUT);
-       }
+                   @{$config{build_file_templates}});
     },
     );
 
 $builders{$builder}->($builder_platform, @builder_opts);
 
-print <<"EOF";
-
-Configured for $target.
-EOF
-
 print <<"EOF" if ($disabled{threads} eq "unavailable");
 
 The library could not be configured for supporting multi-threaded
@@ -1858,38 +2120,13 @@ or position independent code, please let us know (but please first make sure
 you have tried with a current version of OpenSSL).
 EOF
 
-###### TO BE REMOVED BEFORE FINAL RELEASE
-######
-###### If the user hasn't chosen --unified, try to nudge them.
-if ($target{build_file} eq "Makefile"
-    && $target{build_scheme}->[0] eq "unixmake"
-    && !$unified) {
-
-    my $plausible_builddir =
-        abs2rel(rel2abs("../_openssl-build_$target"),rel2abs("."));
-    my $plausible_to_sourcedir =
-        abs2rel(rel2abs("."),rel2abs("../_openssl-build_$target"));
-    print <<"EOF";
-
-----------------------------------------------------------------------
-Please consider configuring with the flag --unified .
-It's to test out a new "unified" building system.
-
-One cool feature is that you can have your build directory elsewhere,
-for example:
-
-    make clean          # Clean the current configuration away
-    mkdir $plausible_builddir
-    cd $plausible_builddir
-    $plausible_to_sourcedir/config --unified
-    make
-    make test
-
-Please report any problem you have.
-----------------------------------------------------------------------
+print <<"EOF" if (-f catfile($srcdir, "configdata.pm") && $srcdir ne $blddir);
 
+WARNING: there are indications that another build was made in the source
+directory.  This build may have picked up artifacts from that build, the
+safest course of action is to clean the source directory and redo this
+configuration.
 EOF
-}
 
 exit(0);
 
@@ -1900,6 +2137,11 @@ exit(0);
 
 # Configuration file reading #########################################
 
+# Note: All of the helper functions are for lazy evaluation.  They all
+# return a CODE ref, which will return the intended value when evaluated.
+# Thus, whenever there's mention of a returned value, it's about that
+# intended value.
+
 # Helper function to implement conditional inheritance depending on the
 # value of $disabled{asm}.  Used in inherit_from values as follows:
 #
@@ -1912,6 +2154,53 @@ sub asm {
     }
 }
 
+# Helper function to implement conditional value variants, with a default
+# plus additional values based on the value of $config{build_type}.
+# Arguments are given in hash table form:
+#
+#       picker(default => "Basic string: ",
+#              debug   => "debug",
+#              release => "release")
+#
+# When configuring with --debug, the resulting string will be
+# "Basic string: debug", and when not, it will be "Basic string: release"
+#
+# This can be used to create variants of sets of flags according to the
+# build type:
+#
+#       cflags => picker(default => "-Wall",
+#                        debug   => "-g -O0",
+#                        release => "-O3")
+#
+sub picker {
+    my %opts = @_;
+    return sub { add($opts{default} || (),
+                     $opts{$config{build_type}} || ())->(); }
+}
+
+# Helper function to combine several values of different types into one.
+# This is useful if you want to combine a string with the result of a
+# lazy function, such as:
+#
+#       cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
+#
+sub combine {
+    my @stuff = @_;
+    return sub { add(@stuff)->(); }
+}
+
+# Helper function to implement conditional values depending on the value
+# of $disabled{threads}.  Can be used as follows:
+#
+#       cflags => combine("-Wall", threads("-pthread"))
+#
+sub threads {
+    my @flags = @_;
+    return sub { add($disabled{threads} ? () : @flags)->(); }
+}
+
+
+
 our $add_called = 0;
 # Helper function to implement adding values to already existing configuration
 # values.  It handles elements that are ARRAYs, CODEs and scalars
@@ -1982,7 +2271,8 @@ sub read_config {
     close(CONFFILE);
     my %targets = ();
     {
-       local %table = %::table;    # Protect %table from tampering
+       # Protect certain tables from tampering
+       local %table = %::table;
 
        eval $content;
        warn $@ if $@;
@@ -1997,21 +2287,23 @@ sub read_config {
                warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
            }
            delete $targets{$_};
-       }
+       } else {
+            $targets{$_}->{_conf_fname_int} = add([ $fname ]);
+        }
     }
 
     %table = (%table, %targets);
 
 }
 
-# configuration resolver.  Will only resolve all the lazy evalutation
-# codeblocks for the chozen target and all those it inherits from,
+# configuration resolver.  Will only resolve all the lazy evaluation
+# codeblocks for the chosen target and all those it inherits from,
 # recursively
 sub resolve_config {
     my $target = shift;
     my @breadcrumbs = @_;
 
-    my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
+#    my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
 
     if (grep { $_ eq $target } @breadcrumbs) {
        die "inherit_from loop!  target backtrace:\n  "
@@ -2039,12 +2331,12 @@ sub resolve_config {
            # the config that had it.
            delete $inherited_config{template};
 
-           map {
+           foreach (keys %inherited_config) {
                if (!$combined_inheritance{$_}) {
                    $combined_inheritance{$_} = [];
                }
                push @{$combined_inheritance{$_}}, $inherited_config{$_};
-           } keys %inherited_config;
+           }
        }
     }
 
@@ -2058,7 +2350,7 @@ sub resolve_config {
     # - If a value is a coderef, it will be executed with the list of
     #   inherited values as arguments.
     # - If the corresponding key doesn't have a value at all or is the
-    #   emoty string, the inherited value list will be run through the
+    #   empty string, the inherited value list will be run through the
     #   default combiner (below), and the result becomes this target's
     #   value.
     # - Otherwise, this target's value is assumed to be a string that
@@ -2111,10 +2403,10 @@ sub resolve_config {
         unless(defined($table{$target}->{$_})) {
             delete $table{$target}->{$_};
         }
-        if ($extra_checks &&
-            $previous && !($add_called ||  $previous ~~ $table{$target}->{$_})) {
-            warn "$_ got replaced in $target\n";
-        }
+#        if ($extra_checks &&
+#            $previous && !($add_called ||  $previous ~~ $table{$target}->{$_})) {
+#            warn "$_ got replaced in $target\n";
+#        }
     }
 
     # Finally done, return the result.
@@ -2156,7 +2448,7 @@ sub usage
        exit(1);
        }
 
-sub run_dofile()
+sub run_dofile
 {
     my $out = shift;
     my @templates = @_;
@@ -2166,13 +2458,35 @@ sub run_dofile()
     foreach (@templates) {
         die "Can't open $_, $!" unless -f $_;
     }
-    my $cmd = "$config{perl} \"-I.\" \"-Mconfigdata\" $dofile -o\"Configure\" \"".join("\" \"",@templates)."\" > \"$out.new\"";
+    my $perlcmd = (quotify("maybeshell", $config{perl}))[0];
+    my $cmd = "$perlcmd \"-I.\" \"-Mconfigdata\" \"$dofile\" -o\"Configure\" \"".join("\" \"",@templates)."\" > \"$out.new\"";
     #print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
     system($cmd);
     exit 1 if $? != 0;
     rename("$out.new", $out) || die "Can't rename $out.new, $!";
 }
 
+sub which
+{
+    my ($name)=@_;
+
+    if (eval { require IPC::Cmd; 1; }) {
+        IPC::Cmd->import();
+        return scalar IPC::Cmd::can_run($name);
+    } else {
+        # if there is $directories component in splitpath,
+        # then it's not something to test with $PATH...
+        return $name if (File::Spec->splitpath($name))[1];
+
+        foreach (File::Spec->path()) {
+            my $fullpath = catfile($_, "$name$target{exe_extension}");
+            if (-f $fullpath and -x $fullpath) {
+                return $fullpath;
+            }
+        }
+    }
+}
+
 # Configuration printer ##############################################
 
 sub print_table_entry
@@ -2192,41 +2506,53 @@ sub print_table_entry
        "unistd",
        "ld",
        "lflags",
+       "loutflag",
        "plib_lflags",
        "ex_libs",
        "bn_ops",
-       "cpuid_obj",
-       "bn_obj",
-       "ec_obj",
-       "des_obj",
-       "aes_obj",
-       "bf_obj",
-       "md5_obj",
-       "sha1_obj",
-       "cast_obj",
-       "rc4_obj",
-       "rmd160_obj",
-       "rc5_obj",
-       "wp_obj",
-       "cmll_obj",
-       "modes_obj",
-       "padlock_obj",
+       "apps_aux_src",
+       "cpuid_asm_src",
+       "uplink_aux_src",
+       "bn_asm_src",
+       "ec_asm_src",
+       "des_asm_src",
+       "aes_asm_src",
+       "bf_asm_src",
+       "md5_asm_src",
+       "cast_asm_src",
+       "sha1_asm_src",
+       "rc4_asm_src",
+       "rmd160_asm_src",
+       "rc5_asm_src",
+       "wp_asm_src",
+       "cmll_asm_src",
+       "modes_asm_src",
+       "padlock_asm_src",
+       "chacha_asm_src",
+       "poly1035_asm_src",
        "thread_scheme",
        "perlasm_scheme",
        "dso_scheme",
        "shared_target",
        "shared_cflag",
+       "shared_defines",
        "shared_ldflag",
        "shared_rcflag",
        "shared_extension",
-       "shared_extension_simple",
-       "shared_import_extension",
        "dso_extension",
        "obj_extension",
        "exe_extension",
        "ranlib",
        "ar",
        "arflags",
+       "aroutflag",
+       "rc",
+       "rcflags",
+       "rcoutflag",
+       "mt",
+       "mtflags",
+       "mtinflag",
+       "mtoutflag",
        "multilib",
        "build_scheme",
        );
@@ -2269,7 +2595,7 @@ sub isabsolute {
     # On non-platforms, we just use file_name_is_absolute().
     return file_name_is_absolute($file) unless $^O eq "VMS";
 
-    # If the file spec includes a device or a directpry spec,
+    # If the file spec includes a device or a directory spec,
     # file_name_is_absolute() is perfectly safe.
     return file_name_is_absolute($file) if $file =~ m|[:\[]|;
 
@@ -2300,31 +2626,25 @@ sub absolutedir {
     return realpath($dir);
 }
 
-sub which
-       {
-       my($name)=@_;
-       my $path;
-       foreach $path (split /:/, $ENV{PATH})
-               {
-               if (-f "$path/$name$target{exe_extension}" and -x _)
-                       {
-                       return "$path/$name$target{exe_extension}" unless ($name eq "perl" and
-                        system("$path/$name$target{exe_extension} -e " . '\'exit($]<5.0);\''));
-                       }
-               }
-       }
-
 sub quotify {
     my %processors = (
        perl    => sub { my $x = shift;
                         $x =~ s/([\\\$\@"])/\\$1/g;
                         return '"'.$x.'"'; },
+       maybeshell => sub { my $x = shift;
+                           (my $y = $x) =~ s/([\\\"])/\\$1/g;
+                           if ($x ne $y || $x =~ m|\s|) {
+                               return '"'.$y.'"';
+                           } else {
+                               return $x;
+                           }
+                       },
        );
     my $for = shift;
     my $processor =
        defined($processors{$for}) ? $processors{$for} : sub { shift; };
 
-    map { $processor->($_); } @_;
+    return map { $processor->($_); } @_;
 }
 
 # collect_from_file($filename, $line_concat_cond_re, $line_concat)
@@ -2399,8 +2719,11 @@ sub collect_information {
     while(defined($_ = $lineiterator->())) {
         s|\R$||;
         my $found = 0;
+        if ($collectors{"BEFORE"}) {
+            $collectors{"BEFORE"}->($_);
+        }
         foreach my $re (keys %collectors) {
-            if ($re ne "OTHERWISE" && /$re/) {
+            if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
                 $collectors{$re}->($lineiterator);
                 $found = 1;
             };
@@ -2409,5 +2732,46 @@ sub collect_information {
             $collectors{"OTHERWISE"}->($lineiterator, $_)
                 unless $found || !defined $collectors{"OTHERWISE"};
         }
+        if ($collectors{"AFTER"}) {
+            $collectors{"AFTER"}->($_);
+        }
+    }
+}
+
+# tokenize($line)
+# $line is a line of text to split up into tokens
+# returns a list of tokens
+#
+# Tokens are divided by spaces.  If the tokens include spaces, they
+# have to be quoted with single or double quotes.  Double quotes
+# inside a double quoted token must be escaped.  Escaping is done
+# with backslash.
+# Basically, the same quoting rules apply for " and ' as in any
+# Unix shell.
+sub tokenize {
+    my $line = my $debug_line = shift;
+    my @result = ();
+
+    while ($line =~ s|^\s+||, $line ne "") {
+        my $token = "";
+        while ($line ne "" && $line !~ m|^\s|) {
+            if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
+                $token .= $1;
+                $line = $';
+            } elsif ($line =~ m/^'([^']*)'/) {
+                $token .= $1;
+                $line = $';
+            } elsif ($line =~ m/^(\S+)/) {
+                $token .= $1;
+                $line = $';
+            }
+        }
+        push @result, $token;
+    }
+
+    if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
+       print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
+       print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
     }
+    return @result;
 }