Configure

:
eval 'exec perl -S $0 ${1+"$@"}'
    if $running_under_some_shell;
##
##  Configure -- OpenSSL source tree configuration script
##  If editing this file, run this command before committing
##	make -f Makefile.org TABLE
##

require 5.000;
use strict;
use File::Basename;
use File::Spec::Functions;

# see INSTALL for instructions.

my $usage="Usage: Configure [no-<cipher> ...] [enable-<cipher> ...] [experimental-<cipher> ...] [-Dxxx] [-lxxx] [-Lxxx] [-fxxx] [-Kxxx] [no-hw-xxx|no-hw] [[no-]threads] [[no-]shared] [[no-]zlib|zlib-dynamic] [no-asm] [no-dso] [no-krb5] [sctp] [386] [--prefix=DIR] [--openssldir=OPENSSLDIR] [--with-xxx[=vvv]] [--test-sanity] [--config=FILE] os/compiler[:flags]\n";

# Options:
#
# --config      add the given configuration file, which will be read after
#               any "Configurations*" files that are found in the same
#               directory as this script.
# --openssldir  install OpenSSL in OPENSSLDIR (Default: DIR/ssl if the
#               --prefix option is given; /usr/local/ssl otherwise)
# --prefix      prefix for the OpenSSL include, lib and bin directories
#               (Default: the OPENSSLDIR directory)
#
# --install_prefix  Additional prefix for package builders (empty by
#               default).  This needn't be set in advance, you can
#               just as well use "make INSTALL_PREFIX=/whatever install".
#
# --with-krb5-dir  Declare where Kerberos 5 lives.  The libraries are expected
#		to live in the subdirectory lib/ and the header files in
#		include/.  A value is required.
# --with-krb5-lib  Declare where the Kerberos 5 libraries live.  A value is
#		required.
#		(Default: KRB5_DIR/lib)
# --with-krb5-include  Declare where the Kerberos 5 header files live.  A
#		value is required.
#		(Default: KRB5_DIR/include)
# --with-krb5-flavor  Declare what flavor of Kerberos 5 is used.  Currently
#		supported values are "MIT" and "Heimdal".  A value is required.
#
# --test-sanity Make a number of sanity checks on the data in this file.
#               This is a debugging tool for OpenSSL developers.
#
# --cross-compile-prefix Add specified prefix to binutils components.
#
# no-hw-xxx     do not compile support for specific crypto hardware.
#               Generic OpenSSL-style methods relating to this support
#               are always compiled but return NULL if the hardware
#               support isn't compiled.
# no-hw         do not compile support for any crypto hardware.
# [no-]threads  [don't] try to create a library that is suitable for
#               multithreaded applications (default is "threads" if we
#               know how to do it)
# [no-]shared	[don't] try to create shared libraries when supported.
# no-asm        do not use assembler
# no-dso        do not compile in any native shared-library methods. This
#               will ensure that all methods just return NULL.
# no-krb5       do not compile in any KRB5 library or code.
# [no-]zlib     [don't] compile support for zlib compression.
# 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
# no-<cipher>   build without specified algorithm (rsa, idea, rc5, ...)
# -<xxx> +<xxx> compiler options are passed through
#
# DEBUG_SAFESTACK use type-safe stacks to enforce type-safety on stack items
#		provided to stack calls. Generates unique stack functions for
#		each possible stack type.
# DES_PTR	use pointer lookup vs arrays in the DES in crypto/des/des_locl.h
# DES_RISC1	use different DES_ENCRYPT macro that helps reduce register
#		dependancies but needs to more registers, good for RISC CPU's
# DES_RISC2	A different RISC variant.
# DES_UNROLL	unroll the inner DES loop, sometimes helps, somtimes hinders.
# DES_INT	use 'int' instead of 'long' for DES_LONG in crypto/des/des.h
#		This is used on the DEC Alpha where long is 8 bytes
#		and int is 4
# BN_LLONG	use the type 'long long' in crypto/bn/bn.h
# MD2_CHAR	use 'char' instead of 'int' for MD2_INT in crypto/md2/md2.h
# MD2_LONG	use 'long' instead of 'int' for MD2_INT in crypto/md2/md2.h
# IDEA_SHORT	use 'short' instead of 'int' for IDEA_INT in crypto/idea/idea.h
# IDEA_LONG	use 'long' instead of 'int' for IDEA_INT in crypto/idea/idea.h
# RC2_SHORT	use 'short' instead of 'int' for RC2_INT in crypto/rc2/rc2.h
# RC2_LONG	use 'long' instead of 'int' for RC2_INT in crypto/rc2/rc2.h
# RC4_CHAR	use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
# RC4_LONG	use 'long' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
# RC4_INDEX	define RC4_INDEX in crypto/rc4/rc4_locl.h.  This turns on
#		array lookups instead of pointer use.
# RC4_CHUNK	enables code that handles data aligned at long (natural CPU
#		word) boundary.
# RC4_CHUNK_LL	enables code that handles data aligned at long long boundary
#		(intended for 64-bit CPUs running 32-bit OS).
# BF_PTR	use 'pointer arithmatic' for Blowfish (unsafe on Alpha).
# BF_PTR2	intel specific version (generic version is more efficient).
#
# 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,
# 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

# Minimum warning options... any contributions to OpenSSL should at least get
# past these.

my $gcc_devteam_warn = "-Wall -pedantic -DPEDANTIC -Wno-long-long -Wsign-compare -Wmissing-prototypes -Wshadow -Wformat -Werror -DCRYPTO_MDEBUG_ALL -DCRYPTO_MDEBUG_ABORT -DREF_CHECK";

my $clang_disabled_warnings = "-Wno-language-extension-token -Wno-extended-offsetof -Wno-padded -Wno-shorten-64-to-32 -Wno-format-nonliteral -Wno-missing-noreturn -Wno-unused-parameter -Wno-sign-conversion -Wno-unreachable-code -Wno-conversion -Wno-documentation -Wno-missing-variable-declarations -Wno-cast-align -Wno-incompatible-pointer-types-discards-qualifiers -Wno-missing-variable-declarations -Wno-missing-field-initializers -Wno-unused-macros -Wno-disabled-macro-expansion -Wno-conditional-uninitialized -Wno-switch-enum";

my $strict_warnings = 0;

my $x86_gcc_des="DES_PTR DES_RISC1 DES_UNROLL";

# MD2_CHAR slags pentium pros
my $x86_gcc_opts="RC4_INDEX MD2_INT";

# MODIFY THESE PARAMETERS IF YOU ARE GOING TO USE THE 'util/speed.sh SCRIPT
# Don't worry about these normally

my $tcc="cc";
my $tflags="-fast -Xa";
my $tbn_mul="";
my $tlib="-lnsl -lsocket";
#$bits1="SIXTEEN_BIT ";
#$bits2="THIRTY_TWO_BIT ";
my $bits1="THIRTY_TWO_BIT ";
my $bits2="SIXTY_FOUR_BIT ";

my $x86_asm="x86cpuid.o:bn-586.o co-586.o x86-mont.o x86-gf2m.o:ecp_nistz256.o ecp_nistz256-x86.o:des-586.o crypt586.o:aes-586.o vpaes-x86.o aesni-x86.o:bf-586.o:md5-586.o:sha1-586.o sha256-586.o sha512-586.o:cast-586.o:rc4-586.o:rmd-586.o:rc5-586.o:wp_block.o wp-mmx.o:cmll-x86.o:ghash-x86.o:e_padlock-x86.o";

my $x86_elf_asm="$x86_asm:elf";

my $x86_64_asm="x86_64cpuid.o:x86_64-gcc.o x86_64-mont.o x86_64-mont5.o x86_64-gf2m.o rsaz_exp.o rsaz-x86_64.o rsaz-avx2.o:ecp_nistz256.o ecp_nistz256-x86_64.o::aes-x86_64.o vpaes-x86_64.o bsaes-x86_64.o aesni-x86_64.o aesni-sha1-x86_64.o aesni-sha256-x86_64.o aesni-mb-x86_64.o::md5-x86_64.o:sha1-x86_64.o sha256-x86_64.o sha512-x86_64.o sha1-mb-x86_64.o sha256-mb-x86_64.o::rc4-x86_64.o rc4-md5-x86_64.o:::wp-x86_64.o:cmll-x86_64.o cmll_misc.o:ghash-x86_64.o aesni-gcm-x86_64.o:e_padlock-x86_64.o";
my $ia64_asm="ia64cpuid.o:bn-ia64.o ia64-mont.o:::aes_core.o aes_cbc.o aes-ia64.o::md5-ia64.o:sha1-ia64.o sha256-ia64.o sha512-ia64.o::rc4-ia64.o rc4_skey.o:::::ghash-ia64.o::void";
my $sparcv9_asm="sparcv9cap.o sparccpuid.o:bn-sparcv9.o sparcv9-mont.o sparcv9a-mont.o vis3-mont.o sparct4-mont.o sparcv9-gf2m.o::des_enc-sparc.o fcrypt_b.o dest4-sparcv9.o:aes_core.o aes_cbc.o aes-sparcv9.o aest4-sparcv9.o::md5-sparcv9.o:sha1-sparcv9.o sha256-sparcv9.o sha512-sparcv9.o::::::camellia.o cmll_misc.o cmll_cbc.o cmllt4-sparcv9.o:ghash-sparcv9.o::void";
my $sparcv8_asm=":sparcv8.o::des_enc-sparc.o fcrypt_b.o:::::::::::::void";
my $alpha_asm="alphacpuid.o:bn_asm.o alpha-mont.o::::::sha1-alpha.o:::::::ghash-alpha.o::void";
my $mips64_asm=":bn-mips.o mips-mont.o:::aes_cbc.o aes-mips.o:::sha1-mips.o sha256-mips.o sha512-mips.o::::::::";
my $mips32_asm=$mips64_asm; $mips32_asm =~ s/\s*sha512\-mips\.o//;
my $s390x_asm="s390xcap.o s390xcpuid.o:bn-s390x.o s390x-mont.o s390x-gf2m.o:::aes-s390x.o aes-ctr.o aes-xts.o:::sha1-s390x.o sha256-s390x.o sha512-s390x.o::rc4-s390x.o:::::ghash-s390x.o:";
my $armv4_asm="armcap.o armv4cpuid.o:bn_asm.o armv4-mont.o armv4-gf2m.o:ecp_nistz256.o ecp_nistz256-armv4.o::aes_cbc.o aes-armv4.o bsaes-armv7.o aesv8-armx.o:::sha1-armv4-large.o sha256-armv4.o sha512-armv4.o:::::::ghash-armv4.o ghashv8-armx.o::void";
my $aarch64_asm="armcap.o arm64cpuid.o mem_clr.o::::aes_core.o aes_cbc.o aesv8-armx.o:::sha1-armv8.o sha256-armv8.o sha512-armv8.o:::::::ghashv8-armx.o:";
my $parisc11_asm="pariscid.o:bn_asm.o parisc-mont.o:::aes_core.o aes_cbc.o aes-parisc.o:::sha1-parisc.o sha256-parisc.o sha512-parisc.o::rc4-parisc.o:::::ghash-parisc.o::32";
my $parisc20_asm="pariscid.o:pa-risc2W.o parisc-mont.o:::aes_core.o aes_cbc.o aes-parisc.o:::sha1-parisc.o sha256-parisc.o sha512-parisc.o::rc4-parisc.o:::::ghash-parisc.o::64";
my $ppc64_asm="ppccpuid.o ppccap.o:bn-ppc.o ppc-mont.o ppc64-mont.o:::aes_core.o aes_cbc.o aes-ppc.o vpaes-ppc.o aesp8-ppc.o:::sha1-ppc.o sha256-ppc.o sha512-ppc.o sha256p8-ppc.o sha512p8-ppc.o:::::::ghashp8-ppc.o:";
my $ppc32_asm=$ppc64_asm;

# As for $BSDthreads. 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?
my $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";


# table of known configurations, read in from files
#
# The content of each entry can take one of two forms:
#
# - old style config-string, colon seperated fields with exactly the
#   following structure.:
#
#	$cc : $cflags : $unistd : $thread_cflag : $sys_id : $lflags : $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 : $engines_obj : $perlasm_scheme : $dso_scheme : $shared_target : $shared_cflag : $shared_ldflag : $shared_extension : $ranlib : $arflags : $multilib
#
#   We use the stringtohash function - defined below - to combine with the
#   fields and form a proper hash table from the string.
#
# - direct transfer of old style config string to hash table, using the names
#   of the fields as keys:
#
#	{
#	  cc => $cc,
#	  cflags => $cflags,
#	  unistd => $unistd,
#	  thread_cflag => $thread_cflag,
#	  sys_id => $sys_id,
#	  lflags => $lflags,
#	  bn_ops => $bn_ops,
#	  cpuid_obj => $cpuid_obj,
#	  bn_obj => $bn_obj,
#	  ec_obj => $ec_obj,
#	  des_obj => $des_obj,
#	  aes_obj => $aes_obj,
#	  bf_obj => $bf_obj,
#	  md5_obj => $md5_obj,
#	  sha1_obj => $sha1_obj,
#	  cast_obj => $cast_obj,
#	  rc4_obj => $rc4_obj,
#	  rmd160_obj => $rmd160_obj,
#	  rc5_obj => $rc5_obj,
#	  wp_obj => $wp_obj,
#	  cmll_obj => $cmll_obj,
#	  modes_obj => $modes_obj,
#	  engines_obj => $engines_obj,
#	  perlasm_scheme => $perlasm_scheme,
#	  dso_scheme => $dso_scheme,
#	  shared_target => $shared_target,
#	  shared_cflag => $shared_cflag,
#	  shared_ldflag => $shared_ldflag,
#	  shared_extension => $shared_extension,
#	  ranlib => $ranlib,
#	  arflags => $arflags,
#	  multilib => $multilib
#	}
#
# - new style config hash table, which has additional attributes for debug
#   and non-debug flags to be added to the common flags, for cflags and lflags:
#
#	{
#	  cc => $cc,
#	  cflags => $cflags,
#	  "debug-cflags" => $debug_cflags,
#	  "nodebug-cflags" => $nodebug_cflags,
#	  unistd => $unistd,
#	  thread_cflag => $thread_cflag,
#	  sys_id => $sys_id,
#	  lflags => $lflags,
#	  "debug-lflags" => $debug_lflags,
#	  "nodebug-lflags" => $nodebug_lflags,
#	  bn_ops => $bn_ops,
#	  cpuid_obj => $cpuid_obj,
#	  bn_obj => $bn_obj,
#	  ec_obj => $ec_obj,
#	  des_obj => $des_obj,
#	  aes_obj => $aes_obj,
#	  bf_obj => $bf_obj,
#	  md5_obj => $md5_obj,
#	  sha1_obj => $sha1_obj,
#	  cast_obj => $cast_obj,
#	  rc4_obj => $rc4_obj,
#	  rmd160_obj => $rmd160_obj,
#	  rc5_obj => $rc5_obj,
#	  wp_obj => $wp_obj,
#	  cmll_obj => $cmll_obj,
#	  modes_obj => $modes_obj,
#	  engines_obj => $engines_obj,
#	  dso_scheme => $dso_scheme,
#	  shared_target => $shared_target,
#	  shared_cflag => $shared_cflag,
#	  shared_ldflag => $shared_ldflag,
#	  shared_extension => $shared_extension,
#	  ranlib => $ranlib,
#	  arflags => $arflags,
#	  multilib => $multilib
#	}
#
# The configuration reader will do what it can to translate everything into
# new style config hash tables, including merging $target and debug-$target
# if they are similar enough.

my %table=(
);

sub stringtohash {
    my $in = shift @_;
    if (ref($in) eq "HASH") {
	return $in;
    }
    my @stringsequence = (
	"cc",
	"cflags",
	"unistd",
	"thread_cflag",
	"sys_id",
	"lflags",
	"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",
	"engines_obj",
	"perlasm_scheme",
	"dso_scheme",
	"shared_target",
	"shared_cflag",
	"shared_ldflag",
	"shared_extension",
	"ranlib",
	"arflags",
	"multilib",
	);

    # return a ref to a hash, that's what the outer braces are for.
    return { map { shift @stringsequence => $_ } split /:/, $in };
};


# Read configuration target stanzas from a file, so that people can have
# local files with their own definitions
sub read_config {
	my $fname = shift;
	open(CONFFILE, "< $fname")
		or die "Can't open configuration file '$fname'!\n";
        my $x = $/;
        undef $/;
	my $content = <CONFFILE>;
        $/ = $x;
	close(CONFFILE);
	my %targets = ();
	eval $content;

	# Make sure we have debug- targets first
	my @keys =
	    sort {
		my $a_nd = $a =~ m/^debug-/ ? $' :$a;
		my $b_nd = $b =~ m/^debug-/ ? $' :$b;
		my $res = 0;

		if (($a_nd == $a) == ($b_nd == $b)) {
		    # they are both debug- or not, compare them as they are
		    $res = $a cmp $b;
		} elsif ($a_nd != $a) {
		    # $a is debug-, make it lesser
		    $res = -1;
		} else {
		    # $b is debug-, make $a greater
		    $res = 1;
		}
		$res;
	    } keys %targets;

	foreach (@keys) {
	    if (ref($targets{$_}) ne "HASH") {
		# Value is assumed to be a string.  Split it up to
		# become a hash table of parameters.  Also, try to
		# merge debug- variants with the non-debug target.

		# Start with converting the value from a string to a
		# standardised hash of fields.  Using $tohash is safe,
		# if the input is already a hash ref, it's just returned
		# back.
		$targets{$_} = stringtohash($targets{$_});

		# If the current target is a debug target, there might
		# be a corresponding non-debug target that we can merge
		# with.  If it isn't a debug- target, we've already done
		# as much merging as we can and do not need to bother
		# with that any more.
		if ($_ =~ m/^debug-/) {
		    my $debugkey = $_;
		    my $nondebugkey = $';
		    my $debug = $targets{$debugkey};
		    my $nondebug;

		    if ($targets{$nondebugkey}) {
			$nondebug = stringtohash($targets{$nondebugkey});
		    }

		    if ($nondebug) {
			# There's both a debug and non-debug variant of
			# this target, so we should try to merge them
			# together.

			# First, check that the non-debug variant isn't
			# already built up with all it should have.
			if ($nondebug->{debug_cflags}
			    || $nondebug->{nodebug_cflags}
			    || $nondebug->{debug_lflags}
			    || $nondebug->{nodebug_lflags}) {
			    warn "there's a debug target $debugkey to be merged with a target $nondebugkey, but the latter seems to already have both nodebug and debug information.  This requires human intervention.  Skipping $debugkey...";
			    next;
			}

			# Now, check similarity.
			# For keys they have in common, support that
			# cflags and lflags can differ, otherwise they
			# must have exactly the same values for them
			# to be merged into one.
			my $similarenough = 1;
			for (keys %{$debug}) {
			    if ($nondebug->{$_} ne $debug->{$_}
				&& $_ !~ m/^[cl]flags$/) {
				$similarenough = 0;
				last;
			    }
			}

			if ($similarenough) {
			    # Here's where the magic happens, split the
			    # options in the debug and non-debug variants
			    # cflags and ldflags into three strings each,
			    # one with common flags, one with extra debug
			    # flags and one with extra non-debug flags.

			    # The result ends up in %h_nondebug, which
			    # becomes the merged variant when we're done.
			    # for each of cflags and lflags, they are
			    # replaced with cflags, debug_cflags,
			    # nodebug_cflags and similar for lflags.
			    #
			    # The purpose is that 'cflags' should be
			    # used together with 'debug_cflags' or
			    # 'nodebug_cflags' depending on what the
			    # user asks for.
			    foreach (("cflags", "lflags")) {
				my @list_d = split /\s+/, $debug->{$_};
				my @list_nd = split /\s+/, $nondebug->{$_};
				my %presence = (); # bitmap
						   # 1: present in @list_d
						   # 2: present in @list_nd
						   # 3: present in both
				map { $presence{$_} += 1; } @list_d;
				map { $presence{$_} += 2; } @list_nd;

				delete $nondebug->{$_};
				# Note: we build from the original lists to
				# preserve order, it might be important
				$nondebug->{"debug-".$_} =
				    join(" ",
					 grep { $presence{$_} == 1 } @list_d);
				$nondebug->{"nodebug-".$_} =
				    join(" ",
					 grep { $presence{$_} == 2 } @list_nd);
				$nondebug->{$_} =
				    join(" ",
					 grep { $presence{$_} == 3 } @list_d);
			    }

			    $targets{$nondebugkey} = $nondebug;
			    delete $targets{$debugkey};
			}
		    }
		}
	    }
	}

	%table = (%table, %targets);
}

my ($vol, $dir, $dummy) = File::Spec->splitpath($0);
my $pattern = File::Spec->catpath($vol, $dir, "Configurations/*.conf");
foreach (sort glob($pattern) ) {
    &read_config($_);
}

my @MK1MF_Builds=qw(VC-WIN64I VC-WIN64A
		    debug-VC-WIN64I debug-VC-WIN64A
		    VC-NT VC-CE VC-WIN32 debug-VC-WIN32
		    BC-32
		    netware-clib netware-clib-bsdsock
		    netware-libc netware-libc-bsdsock);

my $prefix="";
my $libdir="";
my $openssldir="";
my $exe_ext="";
my $install_prefix= "$ENV{'INSTALL_PREFIX'}";
my $cross_compile_prefix="";
my $fipslibdir="/usr/local/ssl/fips-2.0/lib/";
my $nofipscanistercheck=0;
my $baseaddr="0xFB00000";
my $no_threads=0;
my $threads=0;
my $no_shared=0; # but "no-shared" is default
my $zlib=1;      # but "no-zlib" is default
my $no_krb5=0;   # but "no-krb5" is implied unless "--with-krb5-..." is used
my $no_rfc3779=1; # but "no-rfc3779" is default
my $no_asm=0;
my $no_dso=0;
my $no_gmp=0;
my @skip=();
my $Makefile="Makefile";
my $des_locl="crypto/des/des_locl.h";
my $des	="crypto/des/des.h";
my $bn	="crypto/bn/bn.h";
my $md2	="crypto/md2/md2.h";
my $rc4	="crypto/rc4/rc4.h";
my $rc4_locl="crypto/rc4/rc4_locl.h";
my $idea	="crypto/idea/idea.h";
my $rc2	="crypto/rc2/rc2.h";
my $bf	="crypto/bf/bf_locl.h";
my $bn_asm	="bn_asm.o";
my $des_enc="des_enc.o fcrypt_b.o";
my $aes_enc="aes_core.o aes_cbc.o";
my $bf_enc	="bf_enc.o";
my $cast_enc="c_enc.o";
my $rc4_enc="rc4_enc.o rc4_skey.o";
my $rc5_enc="rc5_enc.o";
my $cmll_enc="camellia.o cmll_misc.o cmll_cbc.o";
my $processor="";
my $default_ranlib;
my $perl;
my $fips=0;

# All of the following is disabled by default (RC5 was enabled before 0.9.8):

my %disabled = ( # "what"         => "comment" [or special keyword "experimental"]
		 "deprecated" => "default",
		 "ec_nistp_64_gcc_128" => "default",
		 "gmp"		  => "default",
		 "jpake"          => "experimental",
		 "md2"            => "default",
		 "rc5"            => "default",
		 "rfc3779"	  => "default",
		 "sctp"       => "default",
		 "shared"         => "default",
		 "ssl-trace"	  => "default",
		 "store"	  => "experimental",
		 "unit-test"	  => "default",
		 "zlib"           => "default",
		 "zlib-dynamic"   => "default"
	       );
my @experimental = ();

# This is what $depflags will look like with the above defaults
# (we need this to see if we should advise the user to run "make depend"):
my $default_depflags = " -DOPENSSL_NO_DEPRECATED -DOPENSSL_NO_EC_NISTP_64_GCC_128 -DOPENSSL_NO_GMP -DOPENSSL_NO_JPAKE -DOPENSSL_NO_MD2 -DOPENSSL_NO_RC5 -DOPENSSL_NO_RFC3779 -DOPENSSL_NO_SCTP -DOPENSSL_NO_SSL_TRACE -DOPENSSL_NO_STORE -DOPENSSL_NO_UNIT_TEST";

# Explicit "no-..." options will be collected in %disabled along with the defaults.
# To remove something from %disabled, use "enable-foo" (unless it's experimental).
# For symmetry, "disable-foo" is a synonym for "no-foo".

# For features called "experimental" here, a more explicit "experimental-foo" is needed to enable.
# We will collect such requests in @experimental.
# To avoid accidental use of experimental features, applications will have to use -DOPENSSL_EXPERIMENTAL_FOO.


my $no_sse2=0;

&usage if ($#ARGV < 0);

my $flags;
my $depflags;
my $openssl_experimental_defines;
my $openssl_algorithm_defines;
my $openssl_thread_defines;
my $openssl_sys_defines="";
my $openssl_other_defines;
my $libs;
my $libkrb5="";
my $target;
my $options;
my $symlink;
my $make_depend=0;
my %withargs=();

my @argvcopy=@ARGV;
my $argvstring="";
my $argv_unprocessed=1;

while($argv_unprocessed)
	{
	$flags="";
	$depflags="";
	$openssl_experimental_defines="";
	$openssl_algorithm_defines="";
	$openssl_thread_defines="";
	$openssl_sys_defines="";
	$openssl_other_defines="";
	$libs="";
	$target="";
	$options="";
	$symlink=1;

	$argv_unprocessed=0;
	$argvstring=join(' ',@argvcopy);

PROCESS_ARGS:
	foreach (@argvcopy)
		{
		s /^-no-/no-/; # some people just can't read the instructions

		# rewrite some options in "enable-..." form
		s /^-?-?shared$/enable-shared/;
		s /^sctp$/enable-sctp/;
		s /^threads$/enable-threads/;
		s /^zlib$/enable-zlib/;
		s /^zlib-dynamic$/enable-zlib-dynamic/;

		if (/^no-(.+)$/ || /^disable-(.+)$/)
			{
			if (!($disabled{$1} eq "experimental"))
				{
				if ($1 eq "ssl")
					{
					$disabled{"ssl3"} = "option(ssl)";
					}
				elsif ($1 eq "tls")
					{
					$disabled{"tls1"} = "option(tls)"
					}
				elsif ($1 eq "ssl3-method")
					{
					$disabled{"ssl3-method"} = "option(ssl)";
					$disabled{"ssl3"} = "option(ssl)";
					}
				else
					{
					$disabled{$1} = "option";
					}
				}
			}
		elsif (/^enable-(.+)$/ || /^experimental-(.+)$/)
			{
			my $algo = $1;
			if ($disabled{$algo} eq "experimental")
				{
				die "You are requesting an experimental feature; please say 'experimental-$algo' if you are sure\n"
					unless (/^experimental-/);
				push @experimental, $algo;
				}
			delete $disabled{$algo};

			$threads = 1 if ($algo eq "threads");
			}
		elsif (/^--test-sanity$/)
			{
			exit(&test_sanity());
			}
		elsif (/^--strict-warnings/)
			{
			$strict_warnings = 1;
			}
		elsif (/^reconfigure/ || /^reconf/)
			{
			if (open(IN,"<$Makefile"))
				{
				while (<IN>)
					{
					chomp;
					if (/^CONFIGURE_ARGS=(.*)/)
						{
						$argvstring=$1;
						@argvcopy=split(' ',$argvstring);
						die "Incorrect data to reconfigure, please do a normal configuration\n"
							if (grep(/^reconf/,@argvcopy));
						print "Reconfiguring with: $argvstring\n";
						$argv_unprocessed=1;
						close(IN);
						last PROCESS_ARGS;
						}
					}
				close(IN);
				}
			die "Insufficient data to reconfigure, please do a normal configuration\n";
			}
		elsif (/^386$/)
			{ $processor=386; }
		elsif (/^fips$/)
			{
			$fips=1;
			}
		elsif (/^rsaref$/)
			{
			# No RSAref support any more since it's not needed.
			# The check for the option is there so scripts aren't
			# broken
			}
		elsif (/^nofipscanistercheck$/)
			{
			$fips = 1;
			$nofipscanistercheck = 1;
			}
		elsif (/^[-+]/)
			{
			if (/^--prefix=(.*)$/)
				{
				$prefix=$1;
				}
			elsif (/^--libdir=(.*)$/)
				{
				$libdir=$1;
				}
			elsif (/^--openssldir=(.*)$/)
				{
				$openssldir=$1;
				}
			elsif (/^--install.prefix=(.*)$/)
				{
				$install_prefix=$1;
				}
			elsif (/^--with-krb5-(dir|lib|include|flavor)=(.*)$/)
				{
				$withargs{"krb5-".$1}=$2;
				}
			elsif (/^--with-zlib-lib=(.*)$/)
				{
				$withargs{"zlib-lib"}=$1;
				}
			elsif (/^--with-zlib-include=(.*)$/)
				{
				$withargs{"zlib-include"}="-I$1";
				}
			elsif (/^--with-fipslibdir=(.*)$/)
				{
				$fipslibdir="$1/";
				}
			elsif (/^--with-baseaddr=(.*)$/)
				{
				$baseaddr="$1";
				}
			elsif (/^--cross-compile-prefix=(.*)$/)
				{
				$cross_compile_prefix=$1;
				}
			elsif (/^--config=(.*)$/)
				{
				read_config $1;
				}
			elsif (/^-[lL](.*)$/ or /^-Wl,/)
				{
				$libs.=$_." ";
				}
			else	# common if (/^[-+]/), just pass down...
				{
				$_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
				$flags.=$_." ";
				}
			}
		elsif ($_ =~ /^([^:]+):(.+)$/)
			{
			eval "\$table{\$1} = \"$2\""; # allow $xxx constructs in the string
			$target=$1;
			}
		else
			{
			die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
			$target=$_;
			}

		unless ($_ eq $target || /^no-/ || /^disable-/)
			{
			# "no-..." follows later after implied disactivations
			# have been derived.  (Don't take this too seroiusly,
			# we really only write OPTIONS to the Makefile out of
			# nostalgia.)

			if ($options eq "")
				{ $options = $_; }
			else
				{ $options .= " ".$_; }
			}
		}
	}



if ($processor eq "386")
	{
	$disabled{"sse2"} = "forced";
	}

if (!defined($withargs{"krb5-flavor"}) || $withargs{"krb5-flavor"} eq "")
	{
	$disabled{"krb5"} = "krb5-flavor not specified";
	}

if (!defined($disabled{"zlib-dynamic"}))
	{
	# "zlib-dynamic" was specifically enabled, so enable "zlib"
	delete $disabled{"zlib"};
	}

if (defined($disabled{"rijndael"}))
	{
	$disabled{"aes"} = "forced";
	}
if (defined($disabled{"des"}))
	{
	$disabled{"mdc2"} = "forced";
	}
if (defined($disabled{"ec"}))
	{
	$disabled{"ecdsa"} = "forced";
	$disabled{"ecdh"} = "forced";
	}

# SSL 3.0 and TLS requires MD5 and SHA and either RSA or DSA+DH
if (defined($disabled{"md5"}) || defined($disabled{"sha"})
    || (defined($disabled{"rsa"})
        && (defined($disabled{"dsa"}) || defined($disabled{"dh"}))))
	{
	$disabled{"ssl3"} = "forced";
	$disabled{"tls1"} = "forced";
	}

if (defined($disabled{"tls1"}))
	{
	$disabled{"tlsext"} = "forced";
	}

if (defined($disabled{"ec"}) || defined($disabled{"dsa"})
    || defined($disabled{"dh"}))
	{
	$disabled{"gost"} = "forced";
	}

# SRP and HEARTBEATS require TLSEXT
if (defined($disabled{"tlsext"}))
	{
	$disabled{"srp"} = "forced";
	$disabled{"heartbeats"} = "forced";
	}

if ($target eq "TABLE") {
	foreach $target (sort keys %table) {
		print_table_entry($target, "TABLE");
	}
	exit 0;
}

if ($target eq "LIST") {
	foreach (sort keys %table) {
		print;
		print "\n";
	}
	exit 0;
}

if ($target eq "HASH") {
	print "%table = (\n";
	foreach (sort keys %table) {
		print_table_entry($_, "HASH");
	}
	exit 0;
}

if ($target =~ m/^CygWin32(-.*)$/) {
	$target = "Cygwin".$1;
}

print "Configuring for $target\n";

my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
my $debug_prefix = "nodebug-";
if ($d) {
    $debug_prefix = "debug-";

    # If we do not find debug-foo in the table, the target is set to foo,
    # but only if the foo target has a noon-empty debug-cflags or debug-lflags
    # attribute.
    if (!$table{$target} && ($table{$t}->{"debug-cflags"}
			     || $table{$t}->{"debug-lflags"})) {
	$target = $t;
    }
}

&usage if (!defined($table{$target}));

if ($fips)
	{
	delete $disabled{"shared"} if ($disabled{"shared"} eq "default");
	}

foreach (sort (keys %disabled))
	{
	$options .= " no-$_";

	printf "    no-%-12s %-10s", $_, "[$disabled{$_}]";

	if (/^dso$/)
		{ $no_dso = 1; }
	elsif (/^threads$/)
		{ $no_threads = 1; }
	elsif (/^shared$/)
		{ $no_shared = 1; }
	elsif (/^zlib$/)
		{ $zlib = 0; }
	elsif (/^static-engine$/)
		{ }
	elsif (/^zlib-dynamic$/)
		{ }
	elsif (/^symlinks$/)
		{ $symlink = 0; }
	elsif (/^sse2$/)
		{ $no_sse2 = 1; }
	else
		{
		my ($ALGO, $algo);
		($ALGO = $algo = $_) =~ tr/[\-a-z]/[_A-Z]/;

		if (/^asm$/ || /^err$/ || /^hw$/ || /^hw-/)
			{
			$openssl_other_defines .= "#define OPENSSL_NO_$ALGO\n";
			print " OPENSSL_NO_$ALGO";

			if (/^err$/)	{ $flags .= "-DOPENSSL_NO_ERR "; }
			elsif (/^asm$/)	{ $no_asm = 1; }
			}
		else
			{
			($ALGO,$algo) = ("RMD160","rmd160") if ($algo eq "ripemd");

			$openssl_algorithm_defines .= "#define OPENSSL_NO_$ALGO\n";
			print " OPENSSL_NO_$ALGO";

			if (/^krb5$/)
				{ $no_krb5 = 1; }
			else
				{
				push @skip, $algo;
				# fix-up crypto/directory name(s)
				$skip[$#skip]="whrlpool" if $algo eq "whirlpool";
				$skip[$#skip]="ripemd" if $algo eq "rmd160";

				print " (skip dir)";

				$depflags .= " -DOPENSSL_NO_$ALGO";
				}
			}
		}

	print "\n";
	}

my $exp_cflags = "";

foreach (sort @experimental)
	{
	my $ALGO;
	($ALGO = $_) =~ tr/[a-z]/[A-Z]/;

	# opensslconf.h will set OPENSSL_NO_... unless OPENSSL_EXPERIMENTAL_... is defined
	$openssl_experimental_defines .= "#define OPENSSL_NO_$ALGO\n";
	$exp_cflags .= " -DOPENSSL_EXPERIMENTAL_$ALGO";
	}

my $IsMK1MF=scalar grep /^$target$/,@MK1MF_Builds;

$exe_ext=".exe" if ($target eq "Cygwin" || $target eq "DJGPP" || $target =~ /^mingw/);
$exe_ext=".nlm" if ($target =~ /netware/);
$exe_ext=".pm"  if ($target =~ /vos/);
$openssldir="/usr/local/ssl" if ($openssldir eq "" and $prefix eq "");
$prefix=$openssldir if $prefix eq "";

$default_ranlib= &which("ranlib") or $default_ranlib="true";
$perl=$ENV{'PERL'} or $perl=&which("perl5") or $perl=&which("perl")
  or $perl="perl";
my $make = $ENV{'MAKE'} || "make";

$cross_compile_prefix=$ENV{'CROSS_COMPILE'} if $cross_compile_prefix eq "";

chop $openssldir if $openssldir =~ /\/$/;
chop $prefix if $prefix =~ /.\/$/;

$openssldir=$prefix . "/ssl" if $openssldir eq "";
$openssldir=$prefix . "/" . $openssldir if $openssldir !~ /(^\/|^[a-zA-Z]:[\\\/])/;


print "IsMK1MF=$IsMK1MF\n";

# Allow environment CC to override compiler...
my $cc = $ENV{CC} || $table{$t}->{cc};

# For cflags and lflags, add the debug- or nodebug- attributes
# Do it in such a way that no spurious space is appended (hence the grep).
my $cflags = join(" ",
		  grep { $_ } ($table{$t}->{cflags},
			       $table{$t}->{$debug_prefix."cflags"}));
my $lflags = join(" ",
		  grep { $_ } ($table{$t}->{lflags},
			       $table{$t}->{$debug_prefix."lflags"}));

my $unistd = $table{$t}->{unistd};
my $thread_cflag = $table{$t}->{thread_cflag};
my $sys_id = $table{$t}->{sys_id};
my $bn_ops = $table{$t}->{bn_ops};
my $cpuid_obj = $table{$t}->{cpuid_obj};
my $bn_obj = $table{$t}->{bn_obj};
my $ec_obj = $table{$t}->{ec_obj};
my $des_obj = $table{$t}->{des_obj};
my $aes_obj = $table{$t}->{aes_obj};
my $bf_obj = $table{$t}->{bf_obj};
my $md5_obj = $table{$t}->{md5_obj};
my $sha1_obj = $table{$t}->{sha1_obj};
my $cast_obj = $table{$t}->{cast_obj};
my $rc4_obj = $table{$t}->{rc4_obj};
my $rmd160_obj = $table{$t}->{rmd160_obj};
my $rc5_obj = $table{$t}->{rc5_obj};
my $wp_obj = $table{$t}->{wp_obj};
my $cmll_obj = $table{$t}->{cmll_obj};
my $modes_obj = $table{$t}->{modes_obj};
my $engines_obj = $table{$t}->{engines_obj};
my $perlasm_scheme = $table{$t}->{perlasm_scheme};
my $dso_scheme = $table{$t}->{dso_scheme};
my $shared_target = $table{$t}->{shared_target};
my $shared_cflag = $table{$t}->{shared_cflag};
my $shared_ldflag = $table{$t}->{shared_ldflag};
my $shared_extension = $table{$t}->{shared_extension};
my $ranlib = $ENV{'RANLIB'} || $table{$t}->{ranlib};