]> WPIA git - cassiopeia.git/blobdiff - lib/openssl/Configurations/10-main.conf
upd: openssl to 1.1.0
[cassiopeia.git] / lib / openssl / Configurations / 10-main.conf
diff --git a/lib/openssl/Configurations/10-main.conf b/lib/openssl/Configurations/10-main.conf
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+## -*- mode: perl; -*-
+## Standard openssl configuration targets.
+
+# Helper functions for the Windows configs
+my $vc_win64a_info = {};
+sub vc_win64a_info {
+    unless (%$vc_win64a_info) {
+        if (`nasm -v 2>NUL` =~ /NASM version ([0-9]+\.[0-9]+)/ && $1 >= 2.0) {
+            $vc_win64a_info = { as        => "nasm",
+                                asflags   => "-f win64 -DNEAR -Ox -g",
+                                asoutflag => "-o" };
+        } elsif ($disabled{asm}) {
+            $vc_win64a_info = { as        => "ml64",
+                                asflags   => "/c /Cp /Cx /Zi",
+                                asoutflag => "/Fo" };
+        } else {
+            $die->("NASM not found - please read INSTALL and NOTES.WIN for further details\n");
+            $vc_win64a_info = { as        => "{unknown}",
+                                asflags   => "",
+                                asoutflag => "" };
+        }
+    }
+    return $vc_win64a_info;
+}
+
+my $vc_win32_info = {};
+sub vc_win32_info {
+    unless (%$vc_win32_info) {
+        my $ver=`nasm -v 2>NUL`;
+        my $vew=`nasmw -v 2>NUL`;
+        if ($ver ne "" || $vew ne "") {
+            $vc_win32_info = { as        => $ver ge $vew ? "nasm" : "nasmw",
+                               asflags   => "-f win32",
+                               asoutflag => "-o",
+                               perlasm_scheme => "win32n" };
+        } elsif ($disabled{asm}) {
+            $vc_win32_info = { as        => "ml",
+                               asflags   => "/nologo /Cp /coff /c /Cx /Zi",
+                               asoutflag => "/Fo",
+                               perlasm_scheme => "win32" };
+        } else {
+            $die->("NASM not found - please read INSTALL and NOTES.WIN for further details\n");
+            $vc_win32_info = { as        => "{unknown}",
+                               asflags   => "",
+                               asoutflag => "",
+                               perlasm_scheme => "win32" };
+        }
+    }
+    return $vc_win32_info;
+}
+
+my $vc_wince_info = {};
+sub vc_wince_info {
+    unless (%$vc_wince_info) {
+        # sanity check
+        $die->('%OSVERSION% is not defined') if (!defined($ENV{'OSVERSION'}));
+        $die->('%PLATFORM% is not defined')  if (!defined($ENV{'PLATFORM'}));
+        $die->('%TARGETCPU% is not defined') if (!defined($ENV{'TARGETCPU'}));
+
+        #
+        # Idea behind this is to mimic flags set by eVC++ IDE...
+        #
+        my $wcevers = $ENV{'OSVERSION'};                    # WCENNN
+       my $wcevernum;
+       my $wceverdotnum;
+       if ($wcevers =~ /^WCE([1-9])([0-9]{2})$/) {
+           $wcevernum = "$1$2";
+           $wceverdotnum = "$1.$2";
+       } else {
+           $die->('%OSVERSION% value is insane');
+           $wcevernum = "{unknown}";
+           $wceverdotnum = "{unknown}";
+       }
+        my $wcecdefs = "-D_WIN32_WCE=$wcevernum -DUNDER_CE=$wcevernum"; # -D_WIN32_WCE=NNN
+        my $wcelflag = "/subsystem:windowsce,$wceverdotnum";        # ...,N.NN
+
+        my $wceplatf =  $ENV{'PLATFORM'};
+
+        $wceplatf =~ tr/a-z0-9 /A-Z0-9_/;
+        $wcecdefs .= " -DWCE_PLATFORM_$wceplatf";
+
+        my $wcetgt = $ENV{'TARGETCPU'};                     # just shorter name...
+      SWITCH: for($wcetgt) {
+          /^X86/        && do { $wcecdefs.=" -Dx86 -D_X86_ -D_i386_ -Di_386_";
+                                $wcelflag.=" /machine:X86";     last; };
+          /^ARMV4[IT]/  && do { $wcecdefs.=" -DARM -D_ARM_ -D$wcetgt";
+                                $wcecdefs.=" -DTHUMB -D_THUMB_" if($wcetgt=~/T$/);
+                                $wcecdefs.=" -QRarch4T -QRinterwork-return";
+                                $wcelflag.=" /machine:THUMB";   last; };
+          /^ARM/        && do { $wcecdefs.=" -DARM -D_ARM_ -D$wcetgt";
+                                $wcelflag.=" /machine:ARM";     last; };
+          /^MIPSIV/     && do { $wcecdefs.=" -DMIPS -D_MIPS_ -DR4000 -D$wcetgt";
+                                $wcecdefs.=" -D_MIPS64 -QMmips4 -QMn32";
+                                $wcelflag.=" /machine:MIPSFPU"; last; };
+          /^MIPS16/     && do { $wcecdefs.=" -DMIPS -D_MIPS_ -DR4000 -D$wcetgt";
+                                $wcecdefs.=" -DMIPSII -QMmips16";
+                                $wcelflag.=" /machine:MIPS16";  last; };
+          /^MIPSII/     && do { $wcecdefs.=" -DMIPS -D_MIPS_ -DR4000 -D$wcetgt";
+                                $wcecdefs.=" -QMmips2";
+                                $wcelflag.=" /machine:MIPS";    last; };
+          /^R4[0-9]{3}/ && do { $wcecdefs.=" -DMIPS -D_MIPS_ -DR4000";
+                                $wcelflag.=" /machine:MIPS";    last; };
+          /^SH[0-9]/    && do { $wcecdefs.=" -D$wcetgt -D_${wcetgt}_ -DSHx";
+                                $wcecdefs.=" -Qsh4" if ($wcetgt =~ /^SH4/);
+                                $wcelflag.=" /machine:$wcetgt"; last; };
+          { $wcecdefs.=" -D$wcetgt -D_${wcetgt}_";
+            $wcelflag.=" /machine:$wcetgt";                     last; };
+      }
+
+        $vc_wince_info = { cflags => $wcecdefs,
+                           lflags => $wcelflag };
+    }
+    return $vc_wince_info;
+}
+
+# Helper functions for the VMS configs
+my $vms_info = {};
+sub vms_info {
+    unless (%$vms_info) {
+        my $pointer_size = shift;
+        my $pointer_size_str = $pointer_size == 0 ? "" : "$pointer_size";
+
+        $vms_info->{disable_warns} = [ ];
+        $vms_info->{pointer_size} = $pointer_size_str;
+        if ($pointer_size == 64) {
+            `PIPE CC /NOCROSS_REFERENCE /NOLIST /NOOBJECT /WARNINGS = DISABLE = ( MAYLOSEDATA3, EMPTYFILE ) NL: 2> NL:`;
+            if ($? == 0) {
+                push @{$vms_info->{disable_warns}}, "MAYLOSEDATA3";
+            }
+        }
+
+        unless ($disabled{zlib}) {
+            my $default_zlib = 'GNV$LIBZSHR' . $pointer_size_str;
+            if (defined($disabled{"zlib-dynamic"})) {
+                $vms_info->{zlib} = $withargs{zlib_lib} || "$default_zlib/SHARE";
+            } else {
+                $vms_info->{def_zlib} = $withargs{zlib_lib} || $default_zlib;
+                # In case the --with-zlib-lib value contains something like
+                # /SHARE or /LIB or so at the end, remove it.
+                $vms_info->{def_zlib} =~ s|/.*$||g;
+            }
+        }
+    }
+    return $vms_info;
+}
+
+%targets = (
+
+#### Basic configs that should work on any 32-bit box
+    "gcc" => {
+        cc               => "gcc",
+        cflags           => picker(debug   => "-O0 -g",
+                                   release => "-O3"),
+        thread_scheme    => "(unknown)",
+        bn_ops           => "BN_LLONG",
+    },
+    "cc" => {
+        cc               => "cc",
+        cflags           => "-O",
+        thread_scheme    => "(unknown)",
+    },
+
+#### VOS Configurations
+    "vos-gcc" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "gcc",
+        cflags           => picker(default => "-Wall -DOPENSSL_SYS_VOS -D_POSIX_C_SOURCE=200112L -D_BSD -D_VOS_EXTENDED_NAMES -DB_ENDIAN",
+                                   debug   => "-O0 -g",
+                                   release => "-O3"),
+        thread_scheme    => "(unknown)",
+        sys_id           => "VOS",
+        lflags           => "-Wl,-map",
+        bn_ops           => "BN_LLONG",
+        shared_extension => ".so",
+    },
+
+#### Solaris configurations
+    "solaris-common" => {
+        inherit_from     => [ "BASE_unix" ],
+        template         => 1,
+        cflags           => "-DFILIO_H",
+        ex_libs          => add("-lresolv -lsocket -lnsl -ldl"),
+        dso_scheme       => "dlfcn",
+        thread_scheme    => "pthreads",
+        shared_target    => "solaris-shared",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+    },
+#### Solaris x86 with GNU C setups
+    "solaris-x86-gcc" => {
+        # -DOPENSSL_NO_INLINE_ASM switches off inline assembler. We have
+        # to do it here because whenever GNU C instantiates an assembler
+        # template it surrounds it with #APP #NO_APP comment pair which
+        # (at least Solaris 7_x86) /usr/ccs/bin/as fails to assemble
+        # with "Illegal mnemonic" error message.
+        inherit_from     => [ "solaris-common", asm("x86_elf_asm") ],
+        cc               => "gcc",
+        cflags           => add_before(picker(default => "-Wall -DL_ENDIAN -DOPENSSL_NO_INLINE_ASM",
+                                              debug   => "-O0 -g",
+                                              release => "-O3 -fomit-frame-pointer"),
+                                       threads("-pthread")),
+        bn_ops           => "BN_LLONG",
+        shared_cflag     => "-fPIC",
+        shared_ldflag    => "-shared -static-libgcc",
+    },
+    "solaris64-x86_64-gcc" => {
+        # -shared -static-libgcc might appear controversial, but modules
+        # taken from static libgcc do not have relocations and linking
+        # them into our shared objects doesn't have any negative side
+        # effects. On the contrary, doing so makes it possible to use
+        # gcc shared build with Sun C. Given that gcc generates faster
+        # code [thanks to inline assembler], I would actually recommend
+        # to consider using gcc shared build even with vendor compiler:-)
+        #                                      <appro@fy.chalmers.se>
+        inherit_from     => [ "solaris-common", asm("x86_64_asm") ],
+        cc               => "gcc",
+        cflags           => add_before(picker(default => "-m64 -Wall -DL_ENDIAN",
+                                              debug   => "-O0 -g",
+                                              release => "-O3"),
+                                       threads("-pthread")),
+        bn_ops           => "SIXTY_FOUR_BIT_LONG",
+        perlasm_scheme   => "elf",
+        shared_cflag     => "-fPIC",
+        shared_ldflag    => "-m64 -shared -static-libgcc",
+        multilib         => "/64",
+    },
+
+#### Solaris x86 with Sun C setups
+    # There used to be solaris-x86-cc target, but it was removed,
+    # primarily because vendor assembler can't assemble our modules
+    # with -KPIC flag. As result it, assembly support, was not even
+    # available as option. But its lack means lack of side-channel
+    # resistant code, which is incompatible with security by todays
+    # standards. Fortunately gcc is readily available prepackaged
+    # option, which we can firmly point at...
+    #
+    # On related note, solaris64-x86_64-cc target won't compile code
+    # paths utilizing AVX and post-Haswell instruction extensions.
+    # Consider switching to solaris64-x86_64-gcc even here...
+    #
+    "solaris64-x86_64-cc" => {
+        inherit_from     => [ "solaris-common", asm("x86_64_asm") ],
+        cc               => "cc",
+        cflags           => add_before(picker(default => "-xarch=generic64 -xstrconst -Xa -DL_ENDIAN",
+                                              debug   => "-g",
+                                              release => "-xO5 -xdepend -xbuiltin"),
+                                       threads("-D_REENTRANT")),
+        thread_scheme    => "pthreads",
+        lflags           => add("-xarch=generic64",threads("-mt")),
+        ex_libs          => add(threads("-lpthread")),
+        bn_ops           => "SIXTY_FOUR_BIT_LONG",
+        perlasm_scheme   => "elf",
+        shared_cflag     => "-KPIC",
+        shared_ldflag    => "-xarch=generic64 -G -dy -z text",
+        multilib         => "/64",
+    },
+
+#### SPARC Solaris with GNU C setups
+    "solaris-sparcv7-gcc" => {
+        inherit_from     => [ "solaris-common" ],
+        cc               => "gcc",
+        cflags           => add_before(picker(default => "-Wall -DB_ENDIAN -DBN_DIV2W",
+                                              debug   => "-O0 -g",
+                                              release => "-O3"),
+                                       threads("-pthread")),
+        bn_ops           => "BN_LLONG RC4_CHAR",
+        shared_cflag     => "-fPIC",
+        shared_ldflag    => "-shared",
+    },
+    "solaris-sparcv8-gcc" => {
+        inherit_from     => [ "solaris-sparcv7-gcc", asm("sparcv8_asm") ],
+        cflags           => add_before("-mcpu=v8"),
+    },
+    "solaris-sparcv9-gcc" => {
+        # -m32 should be safe to add as long as driver recognizes
+        # -mcpu=ultrasparc
+        inherit_from     => [ "solaris-sparcv7-gcc", asm("sparcv9_asm") ],
+        cflags           => add_before("-m32 -mcpu=ultrasparc"),
+    },
+    "solaris64-sparcv9-gcc" => {
+        inherit_from     => [ "solaris-sparcv9-gcc" ],
+        cflags           => sub { my $f=join(" ",@_); $f =~ s/\-m32/-m64/; $f; },
+        bn_ops           => "BN_LLONG RC4_CHAR",
+        shared_ldflag    => "-m64 -shared",
+        multilib         => "/64",
+    },
+
+#### SPARC Solaris with Sun C setups
+# SC4.0 doesn't pass 'make test', upgrade to SC5.0 or SC4.2.
+# SC4.2 is ok, better than gcc even on bn as long as you tell it -xarch=v8
+# SC5.0 note: Compiler common patch 107357-01 or later is required!
+    "solaris-sparcv7-cc" => {
+        inherit_from     => [ "solaris-common" ],
+        cc               => "cc",
+        cflags           => add_before(picker(default => "-xstrconst -Xa -DB_ENDIAN -DBN_DIV2W",
+                                              debug   => "-g",
+                                              release => "-xO5 -xdepend"),
+                                       threads("-D_REENTRANT")),
+        lflags           => add(threads("-mt")),
+        ex_libs          => add(threads("-lpthread")),
+        bn_ops           => "BN_LLONG RC4_CHAR",
+        shared_cflag     => "-KPIC",
+        shared_ldflag    => "-G -dy -z text",
+    },
+####
+    "solaris-sparcv8-cc" => {
+        inherit_from     => [ "solaris-sparcv7-cc", asm("sparcv8_asm") ],
+        cflags           => add_before("-xarch=v8"),
+    },
+    "solaris-sparcv9-cc" => {
+        inherit_from     => [ "solaris-sparcv7-cc", asm("sparcv9_asm") ],
+        cflags           => add_before("-xarch=v8plus"),
+    },
+    "solaris64-sparcv9-cc" => {
+        inherit_from     => [ "solaris-sparcv7-cc", asm("sparcv9_asm") ],
+        cflags           => add_before("-xarch=v9"),
+        lflags           => add_before("-xarch=v9"),
+        bn_ops           => "BN_LLONG RC4_CHAR",
+        shared_ldflag    => "-xarch=v9 -G -dy -z text",
+        multilib         => "/64",
+    },
+
+#### IRIX 6.x configs
+# Only N32 and N64 ABIs are supported.
+    "irix-mips3-gcc" => {
+        inherit_from     => [ "BASE_unix", asm("mips64_asm") ],
+        cc               => "gcc",
+        cflags           => combine(picker(default => "-mabi=n32 -DB_ENDIAN -DBN_DIV3W",
+                                           debug   => "-g -O0",
+                                           release => "-O3"),
+                                    threads("-D_SGI_MP_SOURCE")),
+        ex_libs          => add(threads("-lpthread")),
+        bn_ops           => "RC4_CHAR SIXTY_FOUR_BIT",
+        thread_scheme    => "pthreads",
+        perlasm_scheme   => "n32",
+        dso_scheme       => "dlfcn",
+        shared_target    => "irix-shared",
+        shared_ldflag    => "-mabi=n32",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        multilib         => "32",
+    },
+    "irix-mips3-cc" => {
+        inherit_from     => [ "BASE_unix", asm("mips64_asm") ],
+        cc               => "cc",
+        cflags           => combine(picker(default => "-n32 -mips3 -use_readonly_const -G0 -rdata_shared -DB_ENDIAN -DBN_DIV3W",
+                                           debug   => "-g -O0",
+                                           release => "-O2"),
+                                    threads("-D_SGI_MP_SOURCE")),
+        ex_libs          => add(threads("-lpthread")),
+        bn_ops           => "RC4_CHAR SIXTY_FOUR_BIT",
+        thread_scheme    => "pthreads",
+        perlasm_scheme   => "n32",
+        dso_scheme       => "dlfcn",
+        shared_target    => "irix-shared",
+        shared_ldflag    => "-n32",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        multilib         => "32",
+    },
+    # N64 ABI builds.
+    "irix64-mips4-gcc" => {
+        inherit_from     => [ "BASE_unix", asm("mips64_asm") ],
+        cc               => "gcc",
+        cflags           => combine(picker(default => "-mabi=64 -mips4 -DB_ENDIAN -DBN_DIV3W",
+                                           debug   => "-g -O0",
+                                           release => "-O3"),
+                                    threads("-D_SGI_MP_SOURCE")),
+        ex_libs          => add(threads("-lpthread")),
+        bn_ops           => "RC4_CHAR SIXTY_FOUR_BIT_LONG",
+        thread_scheme    => "pthreads",
+        perlasm_scheme   => "64",
+        dso_scheme       => "dlfcn",
+        shared_target    => "irix-shared",
+        shared_ldflag    => "-mabi=64",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        multilib         => "64",
+    },
+    "irix64-mips4-cc" => {
+        inherit_from     => [ "BASE_unix", asm("mips64_asm") ],
+        cc               => "cc",
+        cflags           => combine(picker(default => "-64 -mips4 -use_readonly_const -G0 -rdata_shared -DB_ENDIAN -DBN_DIV3W",
+                                           debug   => "-g -O0",
+                                           release => "-O2"),
+                                    threads("-D_SGI_MP_SOURCE")),
+        ex_libs          => add(threads("-lpthread")),
+        bn_ops           => "RC4_CHAR SIXTY_FOUR_BIT_LONG",
+        thread_scheme    => "pthreads",
+        perlasm_scheme   => "64",
+        dso_scheme       => "dlfcn",
+        shared_target    => "irix-shared",
+        shared_ldflag    => "-64",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        multilib         => "64",
+    },
+
+#### Unified HP-UX ANSI C configs.
+# Special notes:
+# - Originally we were optimizing at +O4 level. It should be noted
+#   that the only difference between +O3 and +O4 is global inter-
+#   procedural analysis. As it has to be performed during the link
+#   stage the compiler leaves behind certain pseudo-code in lib*.a
+#   which might be release or even patch level specific. Generating
+#   the machine code for and analyzing the *whole* program appears
+#   to be *extremely* memory demanding while the performance gain is
+#   actually questionable. The situation is intensified by the default
+#   HP-UX data set size limit (infamous 'maxdsiz' tunable) of 64MB
+#   which is way too low for +O4. In other words, doesn't +O3 make
+#   more sense?
+# - Keep in mind that the HP compiler by default generates code
+#   suitable for execution on the host you're currently compiling at.
+#   If the toolkit is meant to be used on various PA-RISC processors
+#   consider './Configure hpux-parisc-[g]cc +DAportable'.
+# - -DMD32_XARRAY triggers workaround for compiler bug we ran into in
+#   32-bit message digests. (For the moment of this writing) HP C
+#   doesn't seem to "digest" too many local variables (they make "him"
+#   chew forever:-). For more details look-up MD32_XARRAY comment in
+#   crypto/sha/sha_lcl.h.
+# - originally there were 32-bit hpux-parisc2-* targets. They were
+#   scrapped, because a) they were not interchangeable with other 32-bit
+#   targets; b) performance-critical 32-bit assembly modules implement
+#   even PA-RISC 2.0-specific code paths, which are chosen at run-time,
+#   thus adequate performance is provided even with PA-RISC 1.1 build.
+#                                      <appro@fy.chalmers.se>
+    "hpux-parisc-gcc" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "gcc",
+        cflags           => combine(picker(default => "-DB_ENDIAN -DBN_DIV2W",
+                                           debug   => "-O0 -g",
+                                           release => "-O3"),
+                                    threads("-pthread")),
+        ex_libs          => add("-Wl,+s -ldld"),
+        bn_ops           => "BN_LLONG",
+        thread_scheme    => "pthreads",
+        dso_scheme       => "dl",
+        shared_target    => "hpux-shared",
+        shared_cflag     => "-fPIC",
+        shared_ldflag    => "-shared",
+        shared_extension => ".sl.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+    },
+    "hpux-parisc1_1-gcc" => {
+        inherit_from     => [ "hpux-parisc-gcc", asm("parisc11_asm") ],
+        multilib         => "/pa1.1",
+    },
+    "hpux64-parisc2-gcc" => {
+        inherit_from     => [ "BASE_unix", asm("parisc20_64_asm") ],
+        cc               => "gcc",
+        cflags           => combine(picker(default => "-DB_ENDIAN",
+                                           debug   => "-O0 -g",
+                                           release => "-O3"),
+                                    threads("-D_REENTRANT")),
+        ex_libs          => add("-ldl"),
+        bn_ops           => "SIXTY_FOUR_BIT_LONG RC4_CHAR",
+        thread_scheme    => "pthreads",
+        dso_scheme       => "dlfcn",
+        shared_target    => "hpux-shared",
+        shared_cflag     => "-fpic",
+        shared_ldflag    => "-shared",
+        shared_extension => ".sl.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        multilib         => "/pa20_64",
+    },
+
+    # More attempts at unified 10.X and 11.X targets for HP C compiler.
+    #
+    # Chris Ruemmler <ruemmler@cup.hp.com>
+    # Kevin Steves <ks@hp.se>
+    "hpux-parisc-cc" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "cc",
+        cflags           => combine(picker(default => "+Optrs_strongly_typed -Ae +ESlit -DB_ENDIAN -DBN_DIV2W -DMD32_XARRAY",
+                                           debug   => "+O0 +d -g",
+                                           release => "+O3"),
+                                    threads("-D_REENTRANT")),
+        ex_libs          => add("-Wl,+s -ldld",threads("-lpthread")),
+        bn_ops           => "RC4_CHAR",
+        thread_scheme    => "pthreads",
+        dso_scheme       => "dl",
+        shared_target    => "hpux-shared",
+        shared_cflag     => "+Z",
+        shared_ldflag    => "-b",
+        shared_extension => ".sl.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+    },
+    "hpux-parisc1_1-cc" => {
+        inherit_from     => [ "hpux-parisc-cc", asm("parisc11_asm") ],
+        cflags           => add_before("+DA1.1"),
+        multilib         => "/pa1.1",
+    },
+    "hpux64-parisc2-cc" => {
+        inherit_from     => [ "BASE_unix", asm("parisc20_64_asm") ],
+        cc               => "cc",
+        cflags           => combine(picker(default => "+DD64 +Optrs_strongly_typed -Ae +ESlit -DB_ENDIAN -DMD32_XARRAY",
+                                           debug   => "+O0 +d -g",
+                                           release => "+O3"),
+                                    threads("-D_REENTRANT")),
+        ex_libs          => add("-ldl",threads("-lpthread")),
+        bn_ops           => "SIXTY_FOUR_BIT_LONG RC4_CHAR",
+        thread_scheme    => "pthreads",
+        dso_scheme       => "dlfcn",
+        shared_target    => "hpux-shared",
+        shared_cflag     => "+Z",
+        shared_ldflag    => "+DD64 -b",
+        shared_extension => ".sl.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        multilib         => "/pa20_64",
+    },
+
+    # HP/UX IA-64 targets
+    "hpux-ia64-cc" => {
+        inherit_from     => [ "BASE_unix", asm("ia64_asm") ],
+        cc               => "cc",
+        cflags           => combine(picker(default => "-Ae +DD32 +Olit=all -z -DB_ENDIAN",
+                                           debug   => "+O0 +d -g",
+                                           release => "+O2"),
+                                    threads("-D_REENTRANT")),
+        ex_libs          => add("-ldl",threads("-lpthread")),
+        bn_ops           => "SIXTY_FOUR_BIT",
+        thread_scheme    => "pthreads",
+        dso_scheme       => "dlfcn",
+        shared_target    => "hpux-shared",
+        shared_cflag     => "+Z",
+        shared_ldflag    => "+DD32 -b",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        multilib         => "/hpux32",
+    },
+    # Frank Geurts <frank.geurts@nl.abnamro.com> has patiently assisted
+    # with debugging of the following config.
+    "hpux64-ia64-cc" => {
+        inherit_from     => [ "BASE_unix", asm("ia64_asm") ],
+        cc               => "cc",
+        cflags           => combine(picker(default => "-Ae +DD64 +Olit=all -z -DB_ENDIAN",
+                                           debug   => "+O0 +d -g",
+                                           release => "+O3"),
+                                    threads("-D_REENTRANT")),
+        ex_libs          => add("-ldl", threads("-lpthread")),
+        bn_ops           => "SIXTY_FOUR_BIT_LONG",
+        thread_scheme    => "pthreads",
+        dso_scheme       => "dlfcn",
+        shared_target    => "hpux-shared",
+        shared_cflag     => "+Z",
+        shared_ldflag    => "+DD64 -b",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        multilib         => "/hpux64",
+    },
+    # GCC builds...
+    "hpux-ia64-gcc" => {
+        inherit_from     => [ "BASE_unix", asm("ia64_asm") ],
+        cc               => "gcc",
+        cflags           => combine(picker(default => "-DB_ENDIAN",
+                                           debug   => "-O0 -g",
+                                           release => "-O3"),
+                                    threads("-pthread")),
+        ex_libs          => add("-ldl"),
+        bn_ops           => "SIXTY_FOUR_BIT",
+        thread_scheme    => "pthreads",
+        dso_scheme       => "dlfcn",
+        shared_target    => "hpux-shared",
+        shared_cflag     => "-fpic",
+        shared_ldflag    => "-shared",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        multilib         => "/hpux32",
+    },
+    "hpux64-ia64-gcc" => {
+        inherit_from     => [ "BASE_unix", asm("ia64_asm") ],
+        cc               => "gcc",
+        cflags           => combine(picker(default => "-mlp64 -DB_ENDIAN",
+                                           debug   => "-O0 -g",
+                                           release => "-O3"),
+                                    threads("-pthread")),
+        ex_libs          => add("-ldl"),
+        bn_ops           => "SIXTY_FOUR_BIT_LONG",
+        thread_scheme    => "pthreads",
+        dso_scheme       => "dlfcn",
+        shared_target    => "hpux-shared",
+        shared_cflag     => "-fpic",
+        shared_ldflag    => "-mlp64 -shared",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        multilib         => "/hpux64",
+    },
+
+#### HP MPE/iX http://jazz.external.hp.com/src/openssl/
+    "MPE/iX-gcc" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "gcc",
+        cflags           => "-D_ENDIAN -DBN_DIV2W -O3 -D_POSIX_SOURCE -D_SOCKET_SOURCE -I/SYSLOG/PUB",
+        sys_id           => "MPE",
+        ex_libs          => add("-L/SYSLOG/PUB -lsyslog -lsocket -lcurses"),
+        thread_scheme    => "(unknown)",
+        bn_ops           => "BN_LLONG",
+    },
+
+#### DEC Alpha Tru64 targets. Tru64 is marketing name for OSF/1 version 4
+#### and forward. In reality 'uname -s' still returns "OSF1". Originally
+#### there were even osf1-* configs targeting prior versions provided,
+#### but not anymore...
+    "tru64-alpha-gcc" => {
+        inherit_from     => [ "BASE_unix", asm("alpha_asm") ],
+        cc               => "gcc",
+        cflags           => combine("-std=c9x -D_XOPEN_SOURCE=500 -D_OSF_SOURCE -O3",
+                                    threads("-pthread")),
+        ex_libs          => "-lrt",    # for mlock(2)
+        bn_ops           => "SIXTY_FOUR_BIT_LONG",
+        thread_scheme    => "pthreads",
+        dso_scheme       => "dlfcn",
+        shared_target    => "alpha-osf1-shared",
+        shared_extension => ".so",
+    },
+    "tru64-alpha-cc" => {
+        inherit_from     => [ "BASE_unix", asm("alpha_asm") ],
+        cc               => "cc",
+        cflags           => combine("-std1 -D_XOPEN_SOURCE=500 -D_OSF_SOURCE -tune host -fast -readonly_strings",
+                                    threads("-pthread")),
+        ex_libs          => "-lrt",    # for mlock(2)
+        bn_ops           => "SIXTY_FOUR_BIT_LONG",
+        thread_scheme    => "pthreads",
+        dso_scheme       => "dlfcn",
+        shared_target    => "alpha-osf1-shared",
+        shared_ldflag    => "-msym",
+        shared_extension => ".so",
+    },
+
+####
+#### Variety of LINUX:-)
+####
+# *-generic* is endian-neutral target, but ./config is free to
+# throw in -D[BL]_ENDIAN, whichever appropriate...
+    "linux-generic32" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "gcc",
+        cflags           => combine(picker(default => "-Wall",
+                                           debug   => "-O0 -g",
+                                           release => "-O3"),
+                                    threads("-pthread")),
+        ex_libs          => add("-ldl"),
+        bn_ops           => "BN_LLONG RC4_CHAR",
+        thread_scheme    => "pthreads",
+        dso_scheme       => "dlfcn",
+        shared_target    => "linux-shared",
+        shared_cflag     => "-fPIC -DOPENSSL_USE_NODELETE",
+        shared_ldflag    => "-Wl,-znodelete",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+    },
+    "linux-generic64" => {
+        inherit_from     => [ "linux-generic32" ],
+        bn_ops           => "SIXTY_FOUR_BIT_LONG RC4_CHAR",
+    },
+
+    "linux-ppc" => {
+        inherit_from     => [ "linux-generic32", asm("ppc32_asm") ],
+        perlasm_scheme   => "linux32",
+    },
+    "linux-ppc64" => {
+        inherit_from     => [ "linux-generic64", asm("ppc64_asm") ],
+        cflags           => add("-m64 -DB_ENDIAN"),
+        perlasm_scheme   => "linux64",
+        shared_ldflag    => add("-m64"),
+        multilib         => "64",
+    },
+    "linux-ppc64le" => {
+        inherit_from     => [ "linux-generic64", asm("ppc64_asm") ],
+        cflags           => add("-m64 -DL_ENDIAN"),
+        perlasm_scheme   => "linux64le",
+        shared_ldflag    => add("-m64"),
+    },
+
+    "linux-armv4" => {
+        ################################################################
+        # Note that -march is not among compiler options in linux-armv4
+        # target description. Not specifying one is intentional to give
+        # you choice to:
+        #
+        # a) rely on your compiler default by not specifying one;
+        # b) specify your target platform explicitly for optimal
+        # performance, e.g. -march=armv6 or -march=armv7-a;
+        # c) build "universal" binary that targets *range* of platforms
+        # by specifying minimum and maximum supported architecture;
+        #
+        # As for c) option. It actually makes no sense to specify
+        # maximum to be less than ARMv7, because it's the least
+        # requirement for run-time switch between platform-specific
+        # code paths. And without run-time switch performance would be
+        # equivalent to one for minimum. Secondly, there are some
+        # natural limitations that you'd have to accept and respect.
+        # Most notably you can *not* build "universal" binary for
+        # big-endian platform. This is because ARMv7 processor always
+        # picks instructions in little-endian order. Another similar
+        # limitation is that -mthumb can't "cross" -march=armv6t2
+        # boundary, because that's where it became Thumb-2. Well, this
+        # limitation is a bit artificial, because it's not really
+        # impossible, but it's deemed too tricky to support. And of
+        # course you have to be sure that your binutils are actually
+        # up to the task of handling maximum target platform. With all
+        # this in mind here is an example of how to configure
+        # "universal" build:
+        #
+        # ./Configure linux-armv4 -march=armv6 -D__ARM_MAX_ARCH__=8
+        #
+        inherit_from     => [ "linux-generic32", asm("armv4_asm") ],
+        perlasm_scheme   => "linux32",
+    },
+    "linux-aarch64" => {
+        inherit_from     => [ "linux-generic64", asm("aarch64_asm") ],
+        perlasm_scheme   => "linux64",
+    },
+    "linux-arm64ilp32" => {  # https://wiki.linaro.org/Platform/arm64-ilp32
+        inherit_from     => [ "linux-generic32", asm("aarch64_asm") ],
+        cflags           => add("-mabi=ilp32"),
+        bn_ops           => "SIXTY_FOUR_BIT RC4_CHAR",
+        perlasm_scheme   => "linux64",
+        shared_ldflag    => "-mabi=ilp32",
+    },
+
+    "linux-mips32" => {
+        # Configure script adds minimally required -march for assembly
+        # support, if no -march was specified at command line.
+        inherit_from     => [ "linux-generic32", asm("mips32_asm") ],
+        cflags           => add("-mabi=32 -DBN_DIV3W"),
+        perlasm_scheme   => "o32",
+        shared_ldflag    => add("-mabi=32"),
+    },
+    # mips32 and mips64 below refer to contemporary MIPS Architecture
+    # specifications, MIPS32 and MIPS64, rather than to kernel bitness.
+    "linux-mips64" => {
+        inherit_from     => [ "linux-generic32", asm("mips64_asm") ],
+        cflags           => add("-mabi=n32 -DBN_DIV3W"),
+        bn_ops           => "SIXTY_FOUR_BIT RC4_CHAR",
+        perlasm_scheme   => "n32",
+        shared_ldflag    => add("-mabi=n32"),
+        multilib         => "32",
+    },
+    "linux64-mips64" => {
+        inherit_from     => [ "linux-generic64", asm("mips64_asm") ],
+        cflags           => add("-mabi=64 -DBN_DIV3W"),
+        perlasm_scheme   => "64",
+        shared_ldflag    => add("-mabi=64"),
+        multilib         => "64",
+    },
+
+    #### IA-32 targets...
+    "linux-elf" => {
+        inherit_from     => [ "linux-generic32", asm("x86_elf_asm") ],
+        cflags           => add(picker(default => "-DL_ENDIAN",
+                                       release => "-fomit-frame-pointer")),
+        bn_ops           => "BN_LLONG",
+    },
+    "linux-aout" => {
+        inherit_from     => [ "BASE_unix", asm("x86_asm") ],
+        cc               => "gcc",
+        cflags           => add(picker(default => "-DL_ENDIAN -Wall",
+                                       debug   => "-O0 -g",
+                                       release => "-O3 -fomit-frame-pointer")),
+        bn_ops           => "BN_LLONG",
+        thread_scheme    => "(unknown)",
+        perlasm_scheme   => "a.out",
+    },
+
+    "linux-x86_64" => {
+        inherit_from     => [ "linux-generic64", asm("x86_64_asm") ],
+        cflags           => add("-m64 -DL_ENDIAN"),
+        bn_ops           => "SIXTY_FOUR_BIT_LONG",
+        perlasm_scheme   => "elf",
+        shared_ldflag    => add("-m64"),
+        multilib         => "64",
+    },
+    "linux-x86_64-clang" => {
+        inherit_from     => [ "linux-x86_64" ],
+        cc               => "clang",
+        cflags           => add("-Wextra -Qunused-arguments"),
+    },
+    "linux-x32" => {
+        inherit_from     => [ "linux-generic32", asm("x86_64_asm") ],
+        cflags           => add("-mx32 -DL_ENDIAN"),
+        bn_ops           => "SIXTY_FOUR_BIT",
+        perlasm_scheme   => "elf32",
+        shared_ldflag    => "-mx32",
+        multilib         => "x32",
+    },
+
+    "linux-ia64" => {
+        inherit_from     => [ "linux-generic64", asm("ia64_asm") ],
+        bn_ops           => "SIXTY_FOUR_BIT_LONG",
+    },
+
+    "linux64-s390x" => {
+        inherit_from     => [ "linux-generic64", asm("s390x_asm") ],
+        cflags           => add("-m64 -DB_ENDIAN"),
+        perlasm_scheme   => "64",
+        shared_ldflag    => add("-m64"),
+        multilib         => "64",
+    },
+    "linux32-s390x" => {
+        #### So called "highgprs" target for z/Architecture CPUs
+        # "Highgprs" is kernel feature first implemented in Linux
+        # 2.6.32, see /proc/cpuinfo. The idea is to preserve most
+        # significant bits of general purpose registers not only
+        # upon 32-bit process context switch, but even on
+        # asynchronous signal delivery to such process. This makes
+        # it possible to deploy 64-bit instructions even in legacy
+        # application context and achieve better [or should we say
+        # adequate] performance. The build is binary compatible with
+        # linux-generic32, and the idea is to be able to install the
+        # resulting libcrypto.so alongside generic one, e.g. as
+        # /lib/highgprs/libcrypto.so.x.y, for ldconfig and run-time
+        # linker to autodiscover. Unfortunately it doesn't work just
+        # yet, because of couple of bugs in glibc
+        # sysdeps/s390/dl-procinfo.c affecting ldconfig and ld.so.1...
+        #
+        inherit_from     => [ "linux-generic32", asm("s390x_asm") ],
+        cflags           => add("-m31 -Wa,-mzarch -DB_ENDIAN"),
+        bn_asm_src       => sub { my $r=join(" ",@_); $r=~s|asm/s390x\.S|bn_asm.c|; $r; },
+        perlasm_scheme   => "31",
+        shared_ldflag    => add("-m31"),
+        multilib         => "/highgprs",
+    },
+
+    #### SPARC Linux setups
+    # Ray Miller <ray.miller@computing-services.oxford.ac.uk> has
+    # patiently assisted with debugging of following two configs.
+    "linux-sparcv8" => {
+        inherit_from     => [ "linux-generic32", asm("sparcv8_asm") ],
+        cflags           => add("-mcpu=v8 -DB_ENDIAN -DBN_DIV2W"),
+    },
+    "linux-sparcv9" => {
+        # it's a real mess with -mcpu=ultrasparc option under Linux,
+        # but -Wa,-Av8plus should do the trick no matter what.
+        inherit_from     => [ "linux-generic32", asm("sparcv9_asm") ],
+        cflags           => add("-m32 -mcpu=ultrasparc -Wa,-Av8plus -DB_ENDIAN -DBN_DIV2W"),
+        shared_ldflag    => add("-m32"),
+    },
+    "linux64-sparcv9" => {
+        # GCC 3.1 is a requirement
+        inherit_from     => [ "linux-generic64", asm("sparcv9_asm") ],
+        cflags           => add("-m64 -mcpu=ultrasparc -DB_ENDIAN"),
+        bn_ops           => "BN_LLONG RC4_CHAR",
+        shared_ldflag    => add("-m64"),
+        multilib         => "64",
+    },
+
+    "linux-alpha-gcc" => {
+        inherit_from     => [ "linux-generic64", asm("alpha_asm") ],
+        cflags           => add("-DL_ENDIAN"),
+        bn_ops           => "SIXTY_FOUR_BIT_LONG",
+    },
+    "linux-c64xplus" => {
+        inherit_from     => [ "BASE_unix" ],
+        # TI_CGT_C6000_7.3.x is a requirement
+        cc               => "cl6x",
+        cflags           => combine("--linux -ea=.s -eo=.o -mv6400+ -o2 -ox -ms -pden -DOPENSSL_SMALL_FOOTPRINT",
+                                    threads("-D_REENTRANT")),
+        bn_ops           => "BN_LLONG",
+        cpuid_asm_src    => "c64xpluscpuid.s",
+        bn_asm_src       => "asm/bn-c64xplus.asm c64xplus-gf2m.s",
+        aes_asm_src      => "aes-c64xplus.s aes_cbc.c aes-ctr.fake",
+        sha1_asm_src     => "sha1-c64xplus.s sha256-c64xplus.s sha512-c64xplus.s",
+        rc4_asm_src      => "rc4-c64xplus.s",
+        modes_asm_src    => "ghash-c64xplus.s",
+        chacha_asm_src   => "chacha-c64xplus.s",
+        poly1305_asm_src => "poly1305-c64xplus.s",
+        thread_scheme    => "pthreads",
+        perlasm_scheme   => "void",
+        dso_scheme       => "dlfcn",
+        shared_target    => "linux-shared",
+        shared_cflag     => "--pic",
+        shared_ldflag    => add("-z --sysv --shared"),
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        ranlib           => "true",
+    },
+
+#### Android: linux-* but without pointers to headers and libs.
+    #
+    # It takes pair of prior-set environment variables to make it work:
+    #
+    # CROSS_SYSROOT=/some/where/android-ndk-<ver>/platforms/android-<apiver>/arch-<arch>
+    # CROSS_COMPILE=<prefix>
+    #
+    # As well as PATH adjusted to cover ${CROSS_COMPILE}gcc and company.
+    # For example to compile for ICS and ARM with NDK 10d, you'd:
+    #
+    # ANDROID_NDK=/some/where/android-ndk-10d
+    # CROSS_SYSROOT=$ANDROID_NDK/platforms/android-14/arch-arm
+    # CROSS_COMPILE=arm-linux-adroideabi-
+    # PATH=$ANDROID_NDK/toolchains/arm-linux-androideabi-4.8/prebuild/linux-x86_64/bin
+    #
+    "android" => {
+        inherit_from     => [ "linux-generic32" ],
+        # Special note about unconditional -fPIC and -pie. The underlying
+        # reason is that Lollipop refuses to run non-PIE. But what about
+        # older systems and NDKs? -fPIC was never problem, so the only
+        # concern is -pie. Older toolchains, e.g. r4, appear to handle it
+        # and binaries turn mostly functional. "Mostly" means that oldest
+        # Androids, such as Froyo, fail to handle executable, but newer
+        # systems are perfectly capable of executing binaries targeting
+        # Froyo. Keep in mind that in the nutshell Android builds are
+        # about JNI, i.e. shared libraries, not applications.
+        cflags           => add(picker(default => "-mandroid -fPIC --sysroot=\$(CROSS_SYSROOT) -Wa,--noexecstack")),
+        bin_cflags       => "-pie",
+    },
+    "android-x86" => {
+        inherit_from     => [ "android", asm("x86_asm") ],
+        cflags           => add(picker(release => "-fomit-frame-pointer")),
+        bn_ops           => "BN_LLONG",
+        perlasm_scheme   => "android",
+    },
+    ################################################################
+    # Contemporary Android applications can provide multiple JNI
+    # providers in .apk, targeting multiple architectures. Among
+    # them there is "place" for two ARM flavours: generic eabi and
+    # armv7-a/hard-float. However, it should be noted that OpenSSL's
+    # ability to engage NEON is not constrained by ABI choice, nor
+    # is your ability to call OpenSSL from your application code
+    # compiled with floating-point ABI other than default 'soft'.
+    # [Latter thanks to __attribute__((pcs("aapcs"))) declaration.]
+    # This means that choice of ARM libraries you provide in .apk
+    # is driven by application needs. For example if application
+    # itself benefits from NEON or is floating-point intensive, then
+    # it might be appropriate to provide both libraries. Otherwise
+    # just generic eabi would do. But in latter case it would be
+    # appropriate to
+    #
+    #   ./Configure android-armeabi -D__ARM_MAX_ARCH__=8
+    #
+    # in order to build "universal" binary and allow OpenSSL take
+    # advantage of NEON when it's available.
+    #
+    "android-armeabi" => {
+        inherit_from     => [ "android", asm("armv4_asm") ],
+    },
+    "android-mips" => {
+        inherit_from     => [ "android", asm("mips32_asm") ],
+        perlasm_scheme   => "o32",
+    },
+
+    "android64" => {
+        inherit_from     => [ "linux-generic64" ],
+        cflags           => add(picker(default => "-mandroid -fPIC --sysroot=\$(CROSS_SYSROOT) -Wa,--noexecstack")),
+        bin_cflags       => "-pie",
+    },
+    "android64-aarch64" => {
+        inherit_from     => [ "android64", asm("aarch64_asm") ],
+        perlasm_scheme   => "linux64",
+    },
+
+#### *BSD
+    "BSD-generic32" => {
+        # As for thread cflag. Idea is to maintain "collective" set of
+        # flags, which would cover all BSD flavors. -pthread applies
+        # to them all, but is treated differently. OpenBSD expands is
+        # as -D_POSIX_THREAD -lc_r, which is sufficient. FreeBSD 4.x
+        # expands it as -lc_r, which has to be accompanied by explicit
+        # -D_THREAD_SAFE and sometimes -D_REENTRANT. FreeBSD 5.x
+        # expands it as -lc_r, which seems to be sufficient?
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "cc",
+        cflags           => combine(picker(default => "-Wall",
+                                           debug   => "-O0 -g",
+                                           release => "-O3"),
+                                    threads("-pthread -D_THREAD_SAFE -D_REENTRANT")),
+        bn_ops           => "BN_LLONG",
+        thread_scheme    => "pthreads",
+        dso_scheme       => "dlfcn",
+        shared_target    => "bsd-gcc-shared",
+        shared_cflag     => "-fPIC",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+    },
+    "BSD-generic64" => {
+        inherit_from     => [ "BSD-generic32" ],
+        bn_ops           => "SIXTY_FOUR_BIT_LONG",
+    },
+
+    "BSD-x86" => {
+        inherit_from     => [ "BSD-generic32", asm("x86_asm") ],
+        cflags           => add(picker(default => "-DL_ENDIAN",
+                                       release => "-fomit-frame-pointer")),
+        bn_ops           => "BN_LLONG",
+        shared_target    => "bsd-shared",
+        perlasm_scheme   => "a.out",
+    },
+    "BSD-x86-elf" => {
+        inherit_from     => [ "BSD-x86" ],
+        perlasm_scheme   => "elf",
+    },
+
+    "BSD-sparcv8" => {
+        inherit_from     => [ "BSD-generic32", asm("sparcv8_asm") ],
+        cflags           => add("-mcpu=v8 -DB_ENDIAN"),
+    },
+    "BSD-sparc64" => {
+        # -DMD32_REG_T=int doesn't actually belong in sparc64 target, it
+        # simply *happens* to work around a compiler bug in gcc 3.3.3,
+        # triggered by RIPEMD160 code.
+        inherit_from     => [ "BSD-generic64", asm("sparcv9_asm") ],
+        cflags           => add("-DB_ENDIAN -DMD32_REG_T=int"),
+        bn_ops           => "BN_LLONG",
+    },
+
+    "BSD-ia64" => {
+        inherit_from     => [ "BSD-generic64", asm("ia64_asm") ],
+        cflags           => add_before("-DL_ENDIAN"),
+        bn_ops           => "SIXTY_FOUR_BIT_LONG",
+    },
+
+    "BSD-x86_64" => {
+        inherit_from     => [ "BSD-generic64", asm("x86_64_asm") ],
+        cflags           => add_before("-DL_ENDIAN"),
+        bn_ops           => "SIXTY_FOUR_BIT_LONG",
+        perlasm_scheme   => "elf",
+    },
+
+    "bsdi-elf-gcc" => {
+        inherit_from     => [ "BASE_unix", asm("x86_elf_asm") ],
+        cc               => "gcc",
+        cflags           => "-DPERL5 -DL_ENDIAN -fomit-frame-pointer -O3 -Wall",
+        ex_libs          => add("-ldl"),
+        bn_ops           => "BN_LLONG",
+        thread_scheme    => "(unknown)",
+        dso_scheme       => "dlfcn",
+        shared_target    => "bsd-gcc-shared",
+        shared_cflag     => "-fPIC",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+    },
+
+    "nextstep" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "cc",
+        cflags           => "-O -Wall",
+        unistd           => "<libc.h>",
+        bn_ops           => "BN_LLONG",
+        thread_scheme    => "(unknown)",
+    },
+    "nextstep3.3" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "cc",
+        cflags           => "-O3 -Wall",
+        unistd           => "<libc.h>",
+        bn_ops           => "BN_LLONG",
+        thread_scheme    => "(unknown)",
+    },
+
+# QNX
+    "qnx4" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "cc",
+        cflags           => "-DL_ENDIAN -DTERMIO",
+        thread_scheme    => "(unknown)",
+    },
+    "QNX6" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "gcc",
+        ex_libs          => add("-lsocket"),
+        dso_scheme       => "dlfcn",
+        shared_target    => "bsd-gcc-shared",
+        shared_cflag     => "-fPIC",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+    },
+    "QNX6-i386" => {
+        inherit_from     => [ "BASE_unix", asm("x86_elf_asm") ],
+        cc               => "gcc",
+        cflags           => "-DL_ENDIAN -O2 -Wall",
+        ex_libs          => add("-lsocket"),
+        dso_scheme       => "dlfcn",
+        shared_target    => "bsd-gcc-shared",
+        shared_cflag     => "-fPIC",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+    },
+
+#### SCO/Caldera targets.
+#
+# Originally we had like unixware-*, unixware-*-pentium, unixware-*-p6, etc.
+# Now we only have blended unixware-* as it's the only one used by ./config.
+# If you want to optimize for particular microarchitecture, bypass ./config
+# and './Configure unixware-7 -Kpentium_pro' or whatever appropriate.
+# Note that not all targets include assembler support. Mostly because of
+# lack of motivation to support out-of-date platforms with out-of-date
+# compiler drivers and assemblers. Tim Rice <tim@multitalents.net> has
+# patiently assisted to debug most of it.
+#
+# UnixWare 2.0x fails destest with -O.
+    "unixware-2.0" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "cc",
+        cflags           => combine("-DFILIO_H -DNO_STRINGS_H",
+                                    threads("-Kthread")),
+        ex_libs          => add("-lsocket -lnsl -lresolv -lx"),
+        thread_scheme    => "uithreads",
+    },
+    "unixware-2.1" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "cc",
+        cflags           => combine("-O -DFILIO_H",
+                                    threads("-Kthread")),
+        ex_libs          => add("-lsocket -lnsl -lresolv -lx"),
+        thread_scheme    => "uithreads",
+    },
+    "unixware-7" => {
+        inherit_from     => [ "BASE_unix", asm("x86_elf_asm") ],
+        cc               => "cc",
+        cflags           => combine("-O -DFILIO_H -Kalloca",
+                                    threads("-Kthread")),
+        ex_libs          => add("-lsocket -lnsl"),
+        thread_scheme    => "uithreads",
+        bn_ops           => "BN_LLONG",
+        perlasm_scheme   => "elf-1",
+        dso_scheme       => "dlfcn",
+        shared_target    => "svr5-shared",
+        shared_cflag     => "-Kpic",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+    },
+    "unixware-7-gcc" => {
+        inherit_from     => [ "BASE_unix", asm("x86_elf_asm") ],
+        cc               => "gcc",
+        cflags           => combine("-DL_ENDIAN -DFILIO_H -O3 -fomit-frame-pointer -Wall",
+                                    threads("-D_REENTRANT")),
+        ex_libs          => add("-lsocket -lnsl"),
+        bn_ops           => "BN_LLONG",
+        thread_scheme    => "pthreads",
+        perlasm_scheme   => "elf-1",
+        dso_scheme       => "dlfcn",
+        shared_target    => "gnu-shared",
+        shared_cflag     => "-fPIC",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+    },
+# SCO 5 - Ben Laurie <ben@algroup.co.uk> says the -O breaks the SCO cc.
+    "sco5-cc" => {
+        inherit_from     => [ "BASE_unix", asm("x86_elf_asm") ],
+        cc               => "cc",
+        cflags           => "-belf",
+        ex_libs          => add("-lsocket -lnsl"),
+        thread_scheme    => "(unknown)",
+        perlasm_scheme   => "elf-1",
+        dso_scheme       => "dlfcn",
+        shared_target    => "svr3-shared",
+        shared_cflag     => "-Kpic",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+    },
+    "sco5-gcc" => {
+        inherit_from     => [ "BASE_unix", asm("x86_elf_asm") ],
+        cc               => "gcc",
+        cflags           => "-O3 -fomit-frame-pointer",
+        ex_libs          => add("-lsocket -lnsl"),
+        bn_ops           => "BN_LLONG",
+        thread_scheme    => "(unknown)",
+        perlasm_scheme   => "elf-1",
+        dso_scheme       => "dlfcn",
+        shared_target    => "svr3-shared",
+        shared_cflag     => "-fPIC",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+    },
+
+#### IBM's AIX.
+    # Below targets assume AIX >=5. Caveat lector. If you are accustomed
+    # to control compilation "bitness" by setting $OBJECT_MODE environment
+    # variable, then you should know that in OpenSSL case it's considered
+    # only in ./config. Once configured, build procedure remains "deaf" to
+    # current value of $OBJECT_MODE.
+    "aix-gcc" => {
+        inherit_from     => [ "BASE_unix", asm("ppc32_asm") ],
+        cc               => "gcc",
+        cflags           => combine(picker(default => "-DB_ENDIAN",
+                                           debug   => "-O0 -g",
+                                           release => "-O"),
+                                    threads("-pthread")),
+        sys_id           => "AIX",
+        bn_ops           => "BN_LLONG RC4_CHAR",
+        thread_scheme    => "pthreads",
+        perlasm_scheme   => "aix32",
+        dso_scheme       => "dlfcn",
+        shared_target    => "aix-shared",
+        shared_ldflag    => "-shared -static-libgcc -Wl,-G",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        arflags          => "-X32",
+    },
+    "aix64-gcc" => {
+        inherit_from     => [ "BASE_unix", asm("ppc64_asm") ],
+        cc               => "gcc",
+        cflags           => combine(picker(default => "-maix64 -DB_ENDIAN",
+                                           debug   => "-O0 -g",
+                                           release => "-O"),
+                                    threads("-pthread")),
+        sys_id           => "AIX",
+        bn_ops           => "SIXTY_FOUR_BIT_LONG RC4_CHAR",
+        thread_scheme    => "pthreads",
+        perlasm_scheme   => "aix64",
+        dso_scheme       => "dlfcn",
+        shared_target    => "aix-shared",
+        shared_ldflag    => "-maix64 -shared -static-libgcc -Wl,-G",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        arflags          => "-X64",
+    },
+    "aix-cc" => {
+        inherit_from     => [ "BASE_unix", asm("ppc32_asm") ],
+        cc               => "cc",
+        cflags           => combine(picker(default => "-q32 -DB_ENDIAN -qmaxmem=16384 -qro -qroconst",
+                                           debug   => "-O0 -g",
+                                           release => "-O"),
+                                    threads("-qthreaded -D_THREAD_SAFE")),
+        sys_id           => "AIX",
+        bn_ops           => "BN_LLONG RC4_CHAR",
+        thread_scheme    => "pthreads",
+        ex_libs          => threads("-lpthreads"),
+        perlasm_scheme   => "aix32",
+        dso_scheme       => "dlfcn",
+        shared_target    => "aix-shared",
+        shared_ldflag    => "-q32 -G",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        arflags          => "-X 32",
+    },
+    "aix64-cc" => {
+        inherit_from     => [ "BASE_unix", asm("ppc64_asm") ],
+        cc               => "cc",
+        cflags           => combine(picker(default => "-q64 -DB_ENDIAN -qmaxmem=16384 -qro -qroconst",
+                                           debug   => "-O0 -g",
+                                           release => "-O"),
+                                    threads("-qthreaded -D_THREAD_SAFE")),
+        sys_id           => "AIX",
+        bn_ops           => "SIXTY_FOUR_BIT_LONG RC4_CHAR",
+        thread_scheme    => "pthreads",
+        ex_libs          => threads("-lpthreads"),
+        perlasm_scheme   => "aix64",
+        dso_scheme       => "dlfcn",
+        shared_target    => "aix-shared",
+        shared_ldflag    => "-q64 -G",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        arflags          => "-X 64",
+    },
+
+# SIEMENS BS2000/OSD: an EBCDIC-based mainframe
+    "BS2000-OSD" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "c89",
+        cflags           => "-O -XLLML -XLLMK -XL -DB_ENDIAN -DCHARSET_EBCDIC",
+        ex_libs          => add("-lsocket -lnsl"),
+        bn_ops           => "THIRTY_TWO_BIT RC4_CHAR",
+        thread_scheme    => "(unknown)",
+    },
+
+# OS/390 Unix an EBCDIC-based Unix system on IBM mainframe
+# You need to compile using the c89.sh wrapper in the tools directory, because the
+# IBM compiler does not like the -L switch after any object modules.
+#
+    "OS390-Unix" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "c89.sh",
+        cflags           => "-O -DB_ENDIAN -DCHARSET_EBCDIC -DNO_SYS_PARAM_H  -D_ALL_SOURCE",
+        bn_ops           => "THIRTY_TWO_BIT RC4_CHAR",
+        thread_scheme    => "(unknown)",
+    },
+
+#### Visual C targets
+#
+# Win64 targets, WIN64I denotes IA-64 and WIN64A - AMD64
+#
+# Note about -wd4090, disable warning C4090. This warning returns false
+# positives in some situations. Disabling it altogether masks both
+# legitimate and false cases, but as we compile on multiple platforms,
+# we rely on other compilers to catch legitimate cases.
+#
+# Also note that we force threads no matter what.  Configuring "no-threads"
+# is ignored.
+    "VC-common" => {
+        inherit_from     => [ "BASE_Windows" ],
+        template         => 1,
+        cc               => "cl",
+        cflags           => "-W3 -wd4090 -Gs0 -GF -Gy -nologo -DOPENSSL_SYS_WIN32 -DWIN32_LEAN_AND_MEAN -DL_ENDIAN -D_CRT_SECURE_NO_DEPRECATE",
+        defines          => add(sub { my @defs = ();
+                                      unless ($disabled{"zlib-dynamic"}) {
+                                          my $zlib =
+                                              $withargs{zlib_lib} // "ZLIB1";
+                                          push @defs,
+                                              quotify("perl",
+                                                      'LIBZ="' . $zlib . '"');
+                                      }
+                                      return [ @defs ];
+                                    }),
+        coutflag         => "/Fo",
+        lib_cflags       => add("/Zi /Fdossl_static"),
+        dso_cflags       => "/Zi /Fddso",
+        bin_cflags       => "/Zi /Fdapp",
+        lflags           => add("/debug"),
+        shared_ldflag    => "/dll",
+        shared_target    => "win-shared", # meaningless except it gives Configure a hint
+        thread_scheme    => "winthreads",
+        dso_scheme       => "win32",
+        apps_aux_src     => add("win32_init.c"),
+    },
+    "VC-noCE-common" => {
+        inherit_from     => [ "VC-common" ],
+        template         => 1,
+        cflags           => add(picker(default => "-DUNICODE -D_UNICODE",
+                                       debug   =>
+                                       sub {
+                                           ($disabled{shared} ? "" : "/MDd")
+                                               ." /Od -DDEBUG -D_DEBUG";
+                                       },
+                                       release =>
+                                       sub {
+                                           ($disabled{shared} ? "" : "/MD")
+                                               ." /O2";
+                                       })),
+        lib_cflags       => add(sub { $disabled{shared} ? "/MT /Zl" : () }),
+        # Following might/should appears controversial, i.e. defining
+        # /MDd without evaluating $disabled{shared}. It works in
+        # non-shared build because static library is compiled with /Zl
+        # and bares no reference to specific RTL. And it works in
+        # shared build because multiple /MDd options are not prohibited.
+        # But why /MDd in static build? Well, basically this is just a
+        # reference point, which allows to catch eventual errors that
+        # would prevent those who want to wrap OpenSSL into own .DLL.
+        # Why not /MD in release build then? Well, some are likely to
+        # prefer [non-debug] openssl.exe to be free from Micorosoft RTL
+        # redistributable.
+        bin_cflags       => add(picker(debug   => "/MDd",
+                                       release => sub { $disabled{shared} ? "/MT" : () },
+                                      )),
+        bin_lflags       => add("/subsystem:console /opt:ref"),
+        ex_libs          => add(sub {
+            my @ex_libs = ();
+            push @ex_libs, 'ws2_32.lib' unless $disabled{sock};
+            push @ex_libs, 'gdi32.lib advapi32.lib crypt32.lib user32.lib';
+            return join(" ", @ex_libs);
+        }),
+    },
+    "VC-WIN64-common" => {
+        inherit_from     => [ "VC-noCE-common" ],
+        template         => 1,
+        ex_libs          => add(sub {
+            my @ex_libs = ();
+            push @ex_libs, 'bufferoverflowu.lib' if (`cl 2>&1` =~ /14\.00\.4[0-9]{4}\./);
+            return join(" ", @_, @ex_libs);
+        }),
+        bn_ops           => "SIXTY_FOUR_BIT EXPORT_VAR_AS_FN",
+        build_scheme     => add("VC-W64", { separator => undef }),
+    },
+    "VC-WIN64I" => {
+        inherit_from     => [ "VC-WIN64-common", asm("ia64_asm"),
+                              sub { $disabled{shared} ? () : "ia64_uplink" } ],
+        as               => "ias",
+        asflags          => "-d debug",
+        asoutflag        => "-o",
+        sys_id           => "WIN64I",
+        bn_asm_src       => sub { return undef unless @_;
+                                  my $r=join(" ",@_); $r=~s|bn-ia64.s|bn_asm.c|; $r; },
+        perlasm_scheme   => "ias",
+        multilib         => "-ia64",
+    },
+    "VC-WIN64A" => {
+        inherit_from     => [ "VC-WIN64-common", asm("x86_64_asm"),
+                              sub { $disabled{shared} ? () : "x86_64_uplink" } ],
+        as               => sub { vc_win64a_info()->{as} },
+        asflags          => sub { vc_win64a_info()->{asflags} },
+        asoutflag        => sub { vc_win64a_info()->{asoutflag} },
+        sys_id           => "WIN64A",
+        bn_asm_src       => sub { return undef unless @_;
+                                  my $r=join(" ",@_); $r=~s|asm/x86_64-gcc|bn_asm|; $r; },
+        perlasm_scheme   => "auto",
+        multilib         => "-x64",
+    },
+    "VC-WIN32" => {
+        # x86 Win32 target defaults to ANSI API, if you want UNICODE,
+        # configure with 'perl Configure VC-WIN32 -DUNICODE -D_UNICODE'
+        inherit_from     => [ "VC-noCE-common", asm("x86_asm"),
+                              sub { $disabled{shared} ? () : "uplink_common" } ],
+        as               => sub { vc_win32_info()->{as} },
+        asflags          => sub { vc_win32_info()->{asflags} },
+        asoutflag        => sub { vc_win32_info()->{asoutflag} },
+        ex_libs          => add(sub {
+            my @ex_libs = ();
+            # WIN32 UNICODE build gets linked with unicows.lib for
+            # backward compatibility with Win9x.
+            push @ex_libs, 'unicows.lib'
+                if (grep { $_ eq "UNICODE" } @user_defines);
+            return join(" ", @ex_libs, @_);
+        }),
+        sys_id           => "WIN32",
+        bn_ops           => "BN_LLONG EXPORT_VAR_AS_FN",
+        perlasm_scheme   => sub { vc_win32_info()->{perlasm_scheme} },
+        build_scheme     => add("VC-W32", { separator => undef }),
+    },
+    "VC-CE" => {
+        inherit_from     => [ "VC-common" ],
+        as               => "ml",
+        asflags          => "/nologo /Cp /coff /c /Cx /Zi",
+        asoutflag        => "/Fo",
+        cc               => "cl",
+        cflags           =>
+            picker(default =>
+                   combine('/W3 /WX /GF /Gy /nologo -DUNICODE -D_UNICODE -DOPENSSL_SYS_WINCE -DWIN32_LEAN_AND_MEAN -DL_ENDIAN -DDSO_WIN32 -DNO_CHMOD -DOPENSSL_SMALL_FOOTPRINT',
+                           sub { vc_wince_info()->{cflags}; },
+                           sub { defined($ENV{'WCECOMPAT'})
+                                     ? '-I$(WCECOMPAT)/include' : (); },
+                           sub { defined($ENV{'PORTSDK_LIBPATH'})
+                                     ? '-I$(PORTSDK_LIBPATH)/../../include' : (); },
+                           sub { `cl 2>&1` =~ /Version ([0-9]+)\./ && $1>=14
+                                     ? ($disabled{shared} ? " /MT" : " /MD")
+                                     : " /MC"; }),
+                   debug   => "/Od -DDEBUG -D_DEBUG",
+                   release => "/O1i"),
+        lflags           => combine("/nologo /opt:ref",
+                                    sub { vc_wince_info()->{lflags}; },
+                                    sub { defined($ENV{PORTSDK_LIBPATH})
+                                              ? "/entry:mainCRTstartup" : (); }),
+        sys_id           => "WINCE",
+        bn_ops           => "BN_LLONG EXPORT_VAR_AS_FN",
+        ex_libs          => add(sub {
+            my @ex_libs = ();
+            push @ex_libs, 'ws2.lib' unless $disabled{sock};
+            push @ex_libs, 'crypt32.lib';
+            if (defined($ENV{WCECOMPAT})) {
+                my $x = '$(WCECOMPAT)/lib';
+                if (-f "$x/$ENV{TARGETCPU}/wcecompatex.lib") {
+                    $x .= '/$(TARGETCPU)/wcecompatex.lib';
+                } else {
+                    $x .= '/wcecompatex.lib';
+                }
+                push @ex_libs, $x;
+            }
+            push @ex_libs, '$(PORTSDK_LIBPATH)/portlib.lib'
+                if (defined($ENV{'PORTSDK_LIBPATH'}));
+            push @ex_libs, ' /nodefaultlib coredll.lib corelibc.lib'
+                if ($ENV{'TARGETCPU'} eq "X86");
+            return @ex_libs;
+        }),
+        build_scheme     => add("VC-WCE", { separator => undef }),
+    },
+
+#### MinGW
+    "mingw" => {
+        inherit_from     => [ "BASE_unix", asm("x86_asm"),
+                              sub { $disabled{shared} ? () : "x86_uplink" } ],
+        cc               => "gcc",
+        cflags           => combine(picker(default => "-DL_ENDIAN -DWIN32_LEAN_AND_MEAN -DUNICODE -D_UNICODE -m32 -Wall",
+                                           debug   => "-g -O0",
+                                           release => "-O3 -fomit-frame-pointer"),
+                                    threads("-D_MT")),
+        sys_id           => "MINGW32",
+        ex_libs          => add("-lws2_32 -lgdi32 -lcrypt32"),
+        bn_ops           => "BN_LLONG EXPORT_VAR_AS_FN",
+        thread_scheme    => "winthreads",
+        perlasm_scheme   => "coff",
+        dso_scheme       => "win32",
+        shared_target    => "mingw-shared",
+        shared_cflag     => add("-D_WINDLL"),
+        shared_ldflag    => "-static-libgcc",
+        shared_rcflag    => "--target=pe-i386",
+        shared_extension => ".dll",
+        multilib         => "",
+        apps_aux_src     => add("win32_init.c"),
+    },
+    "mingw64" => {
+        # As for OPENSSL_USE_APPLINK. Applink makes it possible to use
+        # .dll compiled with one compiler with application compiled with
+        # another compiler. It's possible to engage Applink support in
+        # mingw64 build, but it's not done, because till mingw64
+        # supports structured exception handling, one can't seriously
+        # consider its binaries for using with non-mingw64 run-time
+        # environment. And as mingw64 is always consistent with itself,
+        # Applink is never engaged and can as well be omitted.
+        inherit_from     => [ "BASE_unix", asm("x86_64_asm") ],
+        cc               => "gcc",
+        cflags           => combine(picker(default => "-DL_ENDIAN -DWIN32_LEAN_AND_MEAN -DUNICODE -D_UNICODE -m64 -Wall",
+                                           debug   => "-g -O0",
+                                           release => "-O3"),
+                                    threads("-D_MT")),
+        sys_id           => "MINGW64",
+        ex_libs          => add("-lws2_32 -lgdi32 -lcrypt32"),
+        bn_ops           => "SIXTY_FOUR_BIT EXPORT_VAR_AS_FN",
+        thread_scheme    => "winthreads",
+        perlasm_scheme   => "mingw64",
+        dso_scheme       => "win32",
+        shared_target    => "mingw-shared",
+        shared_cflag     => add("-D_WINDLL"),
+        shared_ldflag    => "-static-libgcc",
+        shared_rcflag    => "--target=pe-x86-64",
+        shared_extension => ".dll",
+        multilib         => "64",
+        apps_aux_src     => add("win32_init.c"),
+    },
+
+#### UEFI
+    "UEFI" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "cc",
+        cflags           => "-DL_ENDIAN -O",
+        sys_id           => "UEFI",
+    },
+
+#### UWIN
+    "UWIN" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "cc",
+        cflags           => "-DTERMIOS -DL_ENDIAN -O -Wall",
+        sys_id           => "UWIN",
+        bn_ops           => "BN_LLONG",
+        dso_scheme       => "win32",
+    },
+
+#### Cygwin
+    "Cygwin-x86" => {
+        inherit_from     => [ "BASE_unix", asm("x86_asm") ],
+        cc               => "gcc",
+        cflags           => picker(default => "-DTERMIOS -DL_ENDIAN -Wall",
+                                   debug   => "-g -O0",
+                                   release => "-O3 -fomit-frame-pointer"),
+        sys_id           => "CYGWIN",
+        bn_ops           => "BN_LLONG",
+        thread_scheme    => "pthread",
+        perlasm_scheme   => "coff",
+        dso_scheme       => "dlfcn",
+        shared_target    => "cygwin-shared",
+        shared_cflag     => "-D_WINDLL",
+        shared_ldflag    => "-shared",
+        shared_extension => ".dll",
+    },
+    "Cygwin-x86_64" => {
+        inherit_from     => [ "BASE_unix", asm("x86_64_asm") ],
+        cc               => "gcc",
+        cflags           => picker(default => "-DTERMIOS -DL_ENDIAN -Wall",
+                                   debug   => "-g -O0",
+                                   release => "-O3"),
+        sys_id           => "CYGWIN",
+        bn_ops           => "SIXTY_FOUR_BIT_LONG",
+        thread_scheme    => "pthread",
+        perlasm_scheme   => "mingw64",
+        dso_scheme       => "dlfcn",
+        shared_target    => "cygwin-shared",
+        shared_cflag     => "-D_WINDLL",
+        shared_ldflag    => "-shared",
+        shared_extension => ".dll",
+    },
+    # Backward compatibility for those using this target
+    "Cygwin" => {
+       inherit_from     => [ "Cygwin-x86" ]
+    },
+    # In case someone constructs the Cygwin target name themself
+    "Cygwin-i386" => {
+       inherit_from     => [ "Cygwin-x86" ]
+    },
+    "Cygwin-i486" => {
+       inherit_from     => [ "Cygwin-x86" ]
+    },
+    "Cygwin-i586" => {
+       inherit_from     => [ "Cygwin-x86" ]
+    },
+    "Cygwin-i686" => {
+       inherit_from     => [ "Cygwin-x86" ]
+    },
+
+##### MacOS X (a.k.a. Darwin) setup
+    "darwin-common" => {
+        inherit_from     => [ "BASE_unix" ],
+        template         => 1,
+        cc               => "cc",
+        cflags           => combine(picker(default => "",
+                                           debug   => "-g -O0",
+                                           release => "-O3"),
+                                   threads("-D_REENTRANT")),
+        sys_id           => "MACOSX",
+        plib_lflags      => "-Wl,-search_paths_first",
+        bn_ops           => "BN_LLONG RC4_CHAR",
+        thread_scheme    => "pthreads",
+        perlasm_scheme   => "osx32",
+        dso_scheme       => "dlfcn",
+        ranlib           => "ranlib -c",
+        shared_target    => "darwin-shared",
+        shared_cflag     => "-fPIC",
+        shared_ldflag    => "-dynamiclib",
+        shared_extension => ".\$(SHLIB_MAJOR).\$(SHLIB_MINOR).dylib",
+    },
+    # Option "freeze" such as -std=gnu9x can't negatively interfere
+    # with future defaults for below two targets, because MacOS X
+    # for PPC has no future, it was discontinued by vendor in 2009.
+    "darwin-ppc-cc" => {
+        inherit_from     => [ "darwin-common", asm("ppc32_asm") ],
+        cflags           => add("-arch ppc -std=gnu9x -DB_ENDIAN -Wa,-force_cpusubtype_ALL"),
+        perlasm_scheme   => "osx32",
+        shared_ldflag    => "-arch ppc -dynamiclib",
+    },
+    "darwin64-ppc-cc" => {
+        inherit_from     => [ "darwin-common", asm("ppc64_asm") ],
+        cflags           => add("-arch ppc64 -std=gnu9x -DB_ENDIAN"),
+        bn_ops           => "SIXTY_FOUR_BIT_LONG RC4_CHAR",
+        perlasm_scheme   => "osx64",
+        shared_ldflag    => "-arch ppc64 -dynamiclib",
+    },
+    "darwin-i386-cc" => {
+        inherit_from     => [ "darwin-common", asm("x86_asm") ],
+        cflags           => add(picker(default => "-arch i386 -DL_ENDIAN",
+                                       release => "-fomit-frame-pointer")),
+        bn_ops           => "BN_LLONG RC4_INT",
+        perlasm_scheme   => "macosx",
+        shared_ldflag    => "-arch i386 -dynamiclib",
+    },
+    "darwin64-x86_64-cc" => {
+        inherit_from     => [ "darwin-common", asm("x86_64_asm") ],
+        cflags           => add("-arch x86_64 -DL_ENDIAN -Wall"),
+        bn_ops           => "SIXTY_FOUR_BIT_LONG",
+        perlasm_scheme   => "macosx",
+        shared_ldflag    => "-arch x86_64 -dynamiclib",
+    },
+
+#### iPhoneOS/iOS
+#
+# It takes three prior-set environment variables to make it work:
+#
+# CROSS_COMPILE=/where/toolchain/is/usr/bin/ [note ending slash]
+# CROSS_TOP=/where/SDKs/are
+# CROSS_SDK=iPhoneOSx.y.sdk
+#
+# Exact paths vary with Xcode releases, but for couple of last ones
+# they would look like this:
+#
+# CROSS_COMPILE=`xcode-select --print-path`/Toolchains/XcodeDefault.xctoolchain/usr/bin/
+# CROSS_TOP=`xcode-select --print-path`/Platforms/iPhoneOS.platform/Developer
+# CROSS_SDK=iPhoneOS.sdk
+#
+    "iphoneos-cross" => {
+        inherit_from     => [ "darwin-common" ],
+        cflags           => add("-isysroot \$(CROSS_TOP)/SDKs/\$(CROSS_SDK) -fno-common"),
+        sys_id           => "iOS",
+    },
+    "ios-cross" => {
+        inherit_from     => [ "darwin-common", asm("armv4_asm") ],
+        # It should be possible to go below iOS 6 and even add -arch armv6,
+        # thus targeting iPhone pre-3GS, but it's assumed to be irrelevant
+        # at this point.
+        cflags           => add("-arch armv7 -mios-version-min=6.0.0 -isysroot \$(CROSS_TOP)/SDKs/\$(CROSS_SDK) -fno-common"),
+        sys_id           => "iOS",
+        perlasm_scheme   => "ios32",
+    },
+    "ios64-cross" => {
+        inherit_from     => [ "darwin-common", asm("aarch64_asm") ],
+        cflags           => add("-arch arm64 -mios-version-min=7.0.0 -isysroot \$(CROSS_TOP)/SDKs/\$(CROSS_SDK) -fno-common"),
+        sys_id           => "iOS",
+        bn_ops           => "SIXTY_FOUR_BIT_LONG RC4_CHAR",
+        perlasm_scheme   => "ios64",
+    },
+
+##### GNU Hurd
+    "hurd-x86" => {
+        inherit_from     => [ "BASE_unix" ],
+        inherit_from     => [ asm("x86_elf_asm") ],
+        cc               => "gcc",
+        cflags           => combine("-DL_ENDIAN -O3 -fomit-frame-pointer -Wall",
+                                    threads("-pthread")),
+        ex_libs          => add("-ldl"),
+        bn_ops           => "BN_LLONG",
+        thread_scheme    => "pthreads",
+        dso_scheme       => "dlfcn",
+        shared_target    => "linux-shared",
+        shared_cflag     => "-fPIC",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+    },
+
+##### VxWorks for various targets
+    "vxworks-ppc60x" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "ccppc",
+        cflags           => "-D_REENTRANT -mrtp -mhard-float -mstrict-align -fno-implicit-fp -DPPC32_fp60x -O2 -fstrength-reduce -fno-builtin -fno-strict-aliasing -Wall -DCPU=PPC32 -DTOOL_FAMILY=gnu -DTOOL=gnu -I\$(WIND_BASE)/target/usr/h -I\$(WIND_BASE)/target/usr/h/wrn/coreip",
+        sys_id           => "VXWORKS",
+        ex_libs          => add("-Wl,--defsym,__wrs_rtp_base=0xe0000000 -L \$(WIND_BASE)/target/usr/lib/ppc/PPC32/common"),
+    },
+    "vxworks-ppcgen" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "ccppc",
+        cflags           => "-D_REENTRANT -mrtp -msoft-float -mstrict-align -O1 -fno-builtin -fno-strict-aliasing -Wall -DCPU=PPC32 -DTOOL_FAMILY=gnu -DTOOL=gnu -I\$(WIND_BASE)/target/usr/h -I\$(WIND_BASE)/target/usr/h/wrn/coreip",
+        sys_id           => "VXWORKS",
+        ex_libs          => add("-Wl,--defsym,__wrs_rtp_base=0xe0000000 -L \$(WIND_BASE)/target/usr/lib/ppc/PPC32/sfcommon"),
+    },
+    "vxworks-ppc405" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "ccppc",
+        cflags           => "-g -msoft-float -mlongcall -DCPU=PPC405 -I\$(WIND_BASE)/target/h",
+        sys_id           => "VXWORKS",
+        lflags           => "-r",
+    },
+    "vxworks-ppc750" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "ccppc",
+        cflags           => "-ansi -nostdinc -DPPC750 -D_REENTRANT -fvolatile -fno-builtin -fno-for-scope -fsigned-char -Wall -msoft-float -mlongcall -DCPU=PPC604 -I\$(WIND_BASE)/target/h \$(DEBUG_FLAG)",
+        sys_id           => "VXWORKS",
+        lflags           => "-r",
+    },
+    "vxworks-ppc750-debug" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "ccppc",
+        cflags           => "-ansi -nostdinc -DPPC750 -D_REENTRANT -fvolatile -fno-builtin -fno-for-scope -fsigned-char -Wall -msoft-float -mlongcall -DCPU=PPC604 -I\$(WIND_BASE)/target/h -DPEDANTIC -DDEBUG -g",
+        sys_id           => "VXWORKS",
+        lflags           => "-r",
+    },
+    "vxworks-ppc860" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "ccppc",
+        cflags           => "-nostdinc -msoft-float -DCPU=PPC860 -DNO_STRINGS_H -I\$(WIND_BASE)/target/h",
+        sys_id           => "VXWORKS",
+        lflags           => "-r",
+    },
+    "vxworks-simlinux" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "ccpentium",
+        cflags           => "-B\$(WIND_BASE)/host/\$(WIND_HOST_TYPE)/lib/gcc-lib/ -D_VSB_CONFIG_FILE=\"\$(WIND_BASE)/target/lib/h/config/vsbConfig.h\" -DL_ENDIAN -DCPU=SIMLINUX -DTOOL_FAMILY=gnu -DTOOL=gnu -fno-builtin -fno-defer-pop -DNO_STRINGS_H -I\$(WIND_BASE)/target/h -I\$(WIND_BASE)/target/h/wrn/coreip -DOPENSSL_NO_HW_PADLOCK",
+        sys_id           => "VXWORKS",
+        lflags           => "-r",
+        ranlib           => "ranlibpentium",
+    },
+    "vxworks-mips" => {
+        inherit_from     => [ "BASE_unix", asm("mips32_asm") ],
+        cc               => "ccmips",
+        cflags           => combine("-mrtp -mips2 -O -G 0 -B\$(WIND_BASE)/host/\$(WIND_HOST_TYPE)/lib/gcc-lib/ -D_VSB_CONFIG_FILE=\"\$(WIND_BASE)/target/lib/h/config/vsbConfig.h\" -DCPU=MIPS32 -msoft-float -mno-branch-likely -DTOOL_FAMILY=gnu -DTOOL=gnu -fno-builtin -fno-defer-pop -DNO_STRINGS_H -I\$(WIND_BASE)/target/usr/h -I\$(WIND_BASE)/target/h/wrn/coreip",
+                                    threads("-D_REENTRANT")),
+        sys_id           => "VXWORKS",
+        ex_libs          => add("-Wl,--defsym,__wrs_rtp_base=0xe0000000 -L \$(WIND_BASE)/target/usr/lib/mips/MIPSI32/sfcommon"),
+        thread_scheme    => "pthreads",
+        perlasm_scheme   => "o32",
+        ranlib           => "ranlibmips",
+    },
+
+#### uClinux
+    "uClinux-dist" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "$ENV{'CC'}",
+        cflags           => combine("\$(CFLAGS)",
+                                    threads("-D_REENTRANT")),
+        plib_lflags      => "\$(LDFLAGS)",
+        ex_libs          => add("\$(LDLIBS)"),
+        bn_ops           => "BN_LLONG",
+        thread_scheme    => "pthreads",
+        dso_scheme       => "$ENV{'LIBSSL_dlfcn'}",
+        shared_target    => "linux-shared",
+        shared_cflag     => "-fPIC",
+        shared_ldflag    => "-shared",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        ranlib           => "$ENV{'RANLIB'}",
+    },
+    "uClinux-dist64" => {
+        inherit_from     => [ "BASE_unix" ],
+        cc               => "$ENV{'CC'}",
+        cflags           => combine("\$(CFLAGS)",
+                                    threads("-D_REENTRANT")),
+        plib_lflags      => "\$(LDFLAGS)",
+        ex_libs          => add("\$(LDLIBS)"),
+        bn_ops           => "SIXTY_FOUR_BIT_LONG",
+        thread_scheme    => "pthreads",
+        dso_scheme       => "$ENV{'LIBSSL_dlfcn'}",
+        shared_target    => "linux-shared",
+        shared_cflag     => "-fPIC",
+        shared_ldflag    => "-shared",
+        shared_extension => ".so.\$(SHLIB_MAJOR).\$(SHLIB_MINOR)",
+        ranlib           => "$ENV{'RANLIB'}",
+    },
+
+    ##### VMS
+    "vms-generic" => {
+        inherit_from     => [ "BASE_VMS" ],
+        template         => 1,
+        cc               => "CC/DECC",
+        cflags           => picker(default => "/STANDARD=(ISOC94,RELAXED)/NOLIST/PREFIX=ALL",
+                                   debug   => "/NOOPTIMIZE/DEBUG",
+                                   release => "/OPTIMIZE/NODEBUG"),
+        defines          => add("OPENSSL_USE_NODELETE"),
+        lflags           => picker(default => "/MAP",
+                                   debug   => "/DEBUG/TRACEBACK",
+                                   release => "/NODEBUG/NOTRACEBACK"),
+        lib_cflags       => add("/NAMES=(AS_IS,SHORTENED)/EXTERN_MODEL=STRICT_REFDEF"),
+        dso_cflags       => add("/NAMES=(AS_IS,SHORTENED)"),
+        shared_target    => "vms-shared",
+        dso_scheme       => "vms",
+        thread_scheme    => "pthreads",
+
+        apps_aux_src     => "vms_decc_init.c vms_term_sock.c",
+    },
+
+    "vms-alpha" => {
+        inherit_from     => [ "vms-generic" ],
+        cflags           => add(sub { my @warnings =
+                                          @{vms_info(0)->{disable_warns}};
+                                      @warnings
+                                          ? "/WARNINGS=DISABLE=(".join(",",@warnings).")" : (); }),
+        defines          =>
+                    add(sub {
+                            return vms_info(0)->{def_zlib}
+                                ? "LIBZ=\"\"\"".vms_info(0)->{def_zlib}."\"\"\"" : ();
+                            }),
+        ex_libs          => add(sub { return vms_info(0)->{zlib} || (); }),
+        pointer_size     => sub { return vms_info(0)->{pointer_size} },
+        #as               => "???",
+        #debug_aflags     => "/NOOPTIMIZE/DEBUG",
+        #release_aflags   => "/OPTIMIZE/NODEBUG",
+        bn_opts          => "SIXTY_FOUR_BIT RC4_INT",
+    },
+    "vms-alpha-p32" => {
+        inherit_from     => [ "vms-generic" ],
+        cflags           =>
+            add("/POINTER_SIZE=32",
+                sub { my @warnings =
+                          @{vms_info(32)->{disable_warns}};
+                      @warnings
+                          ? "/WARNINGS=DISABLE=(".join(",",@warnings).")" : ();
+                } ),
+        defines          =>
+                    add(sub {
+                            return vms_info(32)->{def_zlib}
+                                ? "LIBZ=\"\"\"".vms_info(32)->{def_zlib}."\"\"\"" : ();
+                            }),
+        ex_libs          => add(sub { return vms_info(32)->{zlib} || (); }),
+        pointer_size     => sub { return vms_info(32)->{pointer_size} },
+    },
+    "vms-alpha-p64" => {
+        inherit_from     => [ "vms-generic" ],
+        cflags           =>
+            add("/POINTER_SIZE=64=ARGV",
+                sub { my @warnings =
+                          @{vms_info(64)->{disable_warns}};
+                      @warnings
+                          ? "/WARNINGS=DISABLE=(".join(",",@warnings).")" : ();
+                } ),
+        defines          =>
+                    add(sub {
+                            return vms_info(64)->{def_zlib}
+                                ? "LIBZ=\"\"\"".vms_info(64)->{def_zlib}."\"\"\"" : ();
+                            }),
+        ex_libs          => add(sub { return vms_info(64)->{zlib} || (); }),
+        pointer_size     => sub { return vms_info(64)->{pointer_size} },
+    },
+    "vms-ia64" => {
+        inherit_from     => [ "vms-generic" ],
+        cflags           => add(sub { my @warnings =
+                                          @{vms_info(0)->{disable_warns}};
+                                      @warnings
+                                          ? "/WARNINGS=DISABLE=(".join(",",@warnings).")" : (); }),
+        defines          =>
+                    add(sub {
+                            return vms_info(0)->{def_zlib}
+                                ? "LIBZ=\"\"\"".vms_info(0)->{def_zlib}."\"\"\"" : ();
+                            }),
+        ex_libs          => add(sub { return vms_info(0)->{zlib} || (); }),
+        pointer_size     => sub { return vms_info(0)->{pointer_size} },
+        #as               => "I4S",
+        #debug_aflags     => "/NOOPTIMIZE/DEBUG",
+        #release_aflags   => "/OPTIMIZE/NODEBUG",
+        bn_opts          => "SIXTY_FOUR_BIT RC4_INT",
+    },
+    "vms-ia64-p32" => {
+        inherit_from     => [ "vms-generic" ],
+        cflags           =>
+            add("/POINTER_SIZE=32",
+                sub { my @warnings =
+                          @{vms_info(32)->{disable_warns}};
+                      @warnings
+                          ? "/WARNINGS=DISABLE=(".join(",",@warnings).")" : ();
+                } ),
+        defines          =>
+                    add(sub {
+                            return vms_info(32)->{def_zlib}
+                                ? "LIBZ=\"\"\"".vms_info(32)->{def_zlib}."\"\"\"" : ();
+                            }),
+        ex_libs          => add(sub { return vms_info(32)->{zlib} || (); }),
+        pointer_size     => sub { return vms_info(32)->{pointer_size} },
+    },
+    "vms-ia64-p64" => {
+        inherit_from     => [ "vms-generic" ],
+        cflags           =>
+            add("/POINTER_SIZE=64=ARGV",
+                sub { my @warnings =
+                          @{vms_info(64)->{disable_warns}};
+                      @warnings
+                          ? "/WARNINGS=DISABLE=(".join(",",@warnings).")" : ();
+                } ),
+        defines          =>
+                    add(sub {
+                            return vms_info(64)->{def_zlib}
+                                ? "LIBZ=\"\"\"".vms_info(64)->{def_zlib}."\"\"\"" : ();
+                            }),
+        ex_libs          => add(sub { return vms_info(64)->{zlib} || (); }),
+        pointer_size     => sub { return vms_info(64)->{pointer_size} },
+    },
+
+);