Configure

:
eval 'exec perl -S $0 ${1+"$@"}'
    if $running_under_some_shell;
##
##  Configure -- OpenSSL source tree configuration script
##

require 5.000;
use strict;

# see INSTALL for instructions.

my $usage="Usage: Configure [-Dxxx] [-lxxx] [-Lxxx] [-fxxx] [-Kxxx] [rsaref] [no-threads] [no-asm] [386] [--prefix=DIR] [--openssldir=OPENSSLDIR] os/compiler[:flags]\n";

# Options:
#
# --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".
#
# rsaref        use RSAref
# [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-asm        do not use assembler
# 386           generate 80386 code
# no-<cipher>   build without specified algorithm (rsa, idea, rc5, ...)
# -D, -L, -l, -f, -K: compiler options are passed through 
# 
# 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.
# BF_PTR	use 'pointer arithmatic' for Blowfish (unsafe on Alpha).
# BF_PTR2	intel specific version (generic version is more efficient).
# 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,

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_sol_asm="asm/bn86-sol.o asm/co86-sol.o:asm/dx86-sol.o asm/yx86-sol.o:asm/bx86-sol.o:asm/mx86-sol.o:asm/sx86-sol.o:asm/cx86-sol.o:asm/rx86-sol.o:asm/rm86-sol.o:asm/r586-sol.o";
my $x86_elf_asm="asm/bn86-elf.o asm/co86-elf.o:asm/dx86-elf.o asm/yx86-elf.o:asm/bx86-elf.o:asm/mx86-elf.o:asm/sx86-elf.o:asm/cx86-elf.o:asm/rx86-elf.o:asm/rm86-elf.o:asm/r586-elf.o";
my $x86_out_asm="asm/bn86-out.o asm/co86-out.o:asm/dx86-out.o asm/yx86-out.o:asm/bx86-out.o:asm/mx86-out.o:asm/sx86-out.o:asm/cx86-out.o:asm/rx86-out.o:asm/rm86-out.o:asm/r586-out.o";
my $x86_bsdi_asm="asm/bn86bsdi.o asm/co86bsdi.o:asm/dx86bsdi.o asm/yx86bsdi.o:asm/bx86bsdi.o:asm/mx86bsdi.o:asm/sx86bsdi.o:asm/cx86bsdi.o:asm/rx86bsdi.o:asm/rm86bsdi.o:asm/r586bsdi.o";

# -DB_ENDIAN slows things down on a sparc for md5, but helps sha1.
# So the md5_locl.h file has an undef B_ENDIAN if sun is defined

#config-string	CC : CFLAGS : LDFLAGS : special header file mods:bn_asm \
# des_asm:bf_asm
my %table=(
#"b",		"$tcc:$tflags::$tlib:$bits1:$tbn_mul::",
#"bl-4c-2c",	"$tcc:$tflags::$tlib:${bits1}BN_LLONG RC4_CHAR MD2_CHAR:$tbn_mul::",
#"bl-4c-ri",	"$tcc:$tflags::$tlib:${bits1}BN_LLONG RC4_CHAR RC4_INDEX:$tbn_mul::",
#"b2-is-ri-dp",	"$tcc:$tflags::$tlib:${bits2}IDEA_SHORT RC4_INDEX DES_PTR:$tbn_mul::",

# Our development configs
"purify",	"purify gcc:-g -DPURIFY -Wall:(unknown):-lsocket -lnsl::::",
"debug",	"gcc:-DBN_DEBUG -DREF_CHECK -DCRYPTO_MDEBUG -ggdb -g2 -Wformat -Wshadow -Wmissing-prototypes -Wmissing-declarations -Werror:(unknown):-lefence::::",
"debug-ben",	"gcc:-DBN_DEBUG -DREF_CHECK -DCRYPTO_MDEBUG -O2 -pedantic -Wall -Wshadow -Werror -pipe:(unknown):::::",
"debug-ben-strict",	"gcc:-DBN_DEBUG -DREF_CHECK -DCRYPTO_MDEBUG -DCONST_STRICT -O2 -Wall -Wshadow -Werror -Wpointer-arith -Wcast-qual -Wwrite-strings -pipe:(unknown):::::",
"debug-rse","cc:-DTERMIOS -DL_ENDIAN -pipe -O -g -ggdb3 -Wall:(unknown)::BN_LLONG $x86_gcc_des $x86_gcc_opts:$x86_elf_asm",
"dist",		"cc:-O:(unknown):::::",

# Basic configs that should work on any box
"gcc",		"gcc:-O3:(unknown)::BN_LLONG:::",
"cc",		"cc:-O:(unknown):::::",

# Solaris setups
"solaris-x86-gcc","gcc:-O3 -fomit-frame-pointer -m486 -Wall -DL_ENDIAN:-D_REENTRANT:-lsocket -lnsl:BN_LLONG $x86_gcc_des $x86_gcc_opts:$x86_sol_asm",
"solaris-sparc-gcc","gcc:-O3 -fomit-frame-pointer -mv8 -Wall -DB_ENDIAN:-D_REENTRANT:-lsocket -lnsl:BN_LLONG RC4_CHAR DES_UNROLL BF_PTR:asm/sparcv8.o::",
"debug-solaris-sparc-gcc","gcc:-O3 -g -mv8 -Wall -DB_ENDIAN:-D_REENTRANT:-lsocket -lnsl:BN_LLONG RC4_CHAR DES_UNROLL BF_PTR:::",

# DO NOT use /xO[34] on sparc with SC3.0. 
# It is broken, and will not pass the tests
"solaris-sparc-cc","cc:-fast -O -Xa -DB_ENDIAN:-D_REENTRANT:\
	-lsocket -lnsl:BN_LLONG RC4_CHAR DES_PTR DES_UNROLL BF_PTR:::",
# SC4.0 is ok, better than gcc, except for the bignum stuff.
# -fast slows things like DES down quite a lot
"solaris-sparc-sc4","cc:-xO5 -Xa -DB_ENDIAN:-D_REENTRANT:-lsocket -lnsl:\
	BN_LLONG RC4_CHAR DES_PTR DES_RISC1 DES_UNROLL BF_PTR:::",
"solaris-usparc-sc4","cc:-xtarget=ultra -xarch=v8plus -Xa -xO2 -DB_ENDIAN:\
	-D_REENTRANT:-lsocket -lnsl:\
	BN_LLONG RC4_CHAR DES_PTR DES_RISC1 DES_UNROLL BF_PTR:asm/sparcv8.o::",
#"solaris-sparc-sc4-pic","cc:-xO5 -Xa -DB_ENDIAN -KPIC:-lsocket -lnsl:\
#	BN_LLONG RC4_CHAR DES_PTR DES_RISC1 DES_UNROLL BF_PTR:::",

# Sunos configs, assuming sparc for the gcc one.
##"sunos-cc", "cc:-O4 -DNOPROTO -DNOCONST:(unknown)::DES_UNROLL:::",
"sunos-gcc","gcc:-O3 -mv8:(unknown)::BN_LLONG RC4_CHAR DES_UNROLL DES_PTR DES_RISC1:::",

# SGI configurations.  If the box is rather old (r3000 cpu), you will
# probably have to remove the '-mips2' flag.  I've only been using
# IRIX 5.[23].
# I've recently done 32 and 64 bit mips assember, it make this RSA
# 3 times faster, use if at all possible.
#"irix-gcc","gcc:-O2 -mips2::SIXTY_FOUR_BIT BN_LLONG RC4_INDEX RC4_CHAR:::",
"irix-gcc","gcc:-O2 -DTERMIOS -DB_ENDIAN:(unknown)::BN_LLONG MD2_CHAR RC4_INDEX RC4_CHAR DES_UNROLL DES_RISC2 DES_PTR BF_PTR:::",
"irix64-gcc","gcc:-mips3 -O2 -DTERMIOS -DB_ENDIAN:(unknown)::MD2_CHAR RC4_INDEX RC4_CHAR DES_UNROLL DES_RISC2 DES_PTR BF_PTR SIXTY_FOUR_BIT:::",
"irix-cc", "cc:-O2 -use_readonly_const -DTERMIOS -DB_ENDIAN:(unknown)::BN_LLONG DES_PTR DES_RISC2 DES_UNROLL BF_PTR:::",
"irix64-cc", "cc:-O2 -use_readonly_const -DTERMIOS -DB_ENDIAN:(unknown)::DES_PTR DES_RISC2 DES_UNROLL BF_PTR SIXTY_FOUR_BIT:::",
"debug-irix-cc", "cc:-w2 -g -DCRYPTO_MDEBUG -DTERMIOS -DB_ENDIAN:(unknown):::::",
# This is the n64 mode build.
"irix-n64-cc", "cc:-64 -O2 -use_readonly_const -DTERMIOS:(unknown)::DES_RISC2 DES_UNROLL SIXTY_FOUR_BIT:::",

# HPUX config.  I've been building on HPUX 9, so the options may be
# different on version 10.
"hpux-cc",	"cc:-DB_ENDIAN -D_HPUX_SOURCE -Aa -Ae +ESlit +O4 -Wl,-a,archive:(unknown)::DES_PTR DES_UNROLL DES_RISC1:::",
##"hpux-kr-cc",	"cc:-DB_ENDIAN -DNOCONST -DNOPROTO -D_HPUX_SOURCE:(unknown)::DES_PTR DES_UNROLL:::",
"hpux-gcc",	"gcc:-DB_ENDIAN -O3:(unknown)::BN_LLONG DES_PTR DES_UNROLL DES_RISC1:::",
# HPUX from www.globus.org
"hpux11-32bit-cc","cc:+DA2.0 -DB_ENDIAN -D_HPUX_SOURCE -Aa -Ae +ESlit:(unknown)::DES_PTR DES_UNROLL DES_RISC1:::",
"hpux11-64bit-cc","cc:+DA2.0W -g -D_HPUX_SOURCE -Aa -Ae +ESlit:(unknown)::SIXTY_FOUR_BIT_LONG MD2_CHAR RC4_INDEX RC4_CHAR DES_UNROLL DES_RISC1 DES_INT :::",

# Dec Alpha, OSF/1 - the alpha164-cc is the flags for a 21164A with
# the new compiler
# For gcc, the following gave a %50 speedup on a 164 over the 'DES_INT' version
"alpha-gcc","gcc:-O3:(unknown)::SIXTY_FOUR_BIT_LONG DES_UNROLL DES_RISC1:::",
"alpha-cc", "cc:-std1 -tune host -O4 -readonly_strings:(unknown)::SIXTY_FOUR_BIT_LONG:::",
"alpha164-cc", "cc:-std1 -tune host -fast -readonly_strings:(unknown)::SIXTY_FOUR_BIT_LONG:::",
# assembler versions -- currently defunct:
##"alpha-gcc","gcc:-O3:(unknown)::SIXTY_FOUR_BIT_LONG DES_UNROLL DES_RISC1:asm/alpha.o::",
##"alpha-cc", "cc:-tune host -O4 -readonly_strings:(unknown)::SIXTY_FOUR_BIT_LONG:asm/alpha.o::",
##"alpha164-cc", "cc:-tune host -fast -readonly_strings:(unknown)::SIXTY_FOUR_BIT_LONG:asm/alpha.o::",
##"OpenBSD-alpha","gcc:-DTERMIOS -O3 -fomit-frame-pointer:(unknown):SIXTY_FOUR_BIT_LONG DES_INT DES_PTR DES_RISC2:asm/alpha.o::",

# The intel boxes :-), It would be worth seeing if bsdi-gcc can use the
# bn86-elf.o file file since it is hand tweaked assembler.
"linux-elf",	"gcc:-DL_ENDIAN -DTERMIO -O3 -fomit-frame-pointer -m486 -Wall:-D_REENTRANT::BN_LLONG $x86_gcc_des $x86_gcc_opts:$x86_elf_asm",
"debug-linux-elf","gcc:-DREF_CHECK -DCRYPTO_MDEBUG -DL_ENDIAN -DTERMIO -g -m486 -Wall:-D_REENTRANT:-lefence:BN_LLONG $x86_gcc_des $x86_gcc_opts:$x86_elf_asm",
"linux-aout",	"gcc:-DL_ENDIAN -DTERMIO -O3 -fomit-frame-pointer -m486 -Wall:(unknown)::BN_LLONG $x86_gcc_des $x86_gcc_opts:$x86_out_asm",
"linux-mips",   "gcc:-DL_ENDIAN -DTERMIO -O3 -fomit-frame-pointer -Wall:(unknown)::BN_LLONG:::",
"linux-ppc",    "gcc:-DB_ENDIAN -DTERMIO -O3 -fomit-frame-pointer -Wall:(unknown)::::",
"NetBSD-sparc",	"gcc:-DTERMIOS -O3 -fomit-frame-pointer -mv8 -Wall -DB_ENDIAN:(unknown)::BN_LLONG MD2_CHAR RC4_INDEX DES_UNROLL:::",
"NetBSD-m68",	"gcc:-DTERMIOS -O3 -fomit-frame-pointer -Wall -DB_ENDIAN:(unknown)::BN_LLONG MD2_CHAR RC4_INDEX DES_UNROLL:::",
"NetBSD-x86",	"gcc:-DTERMIOS -D_ANSI_SOURCE -O3 -fomit-frame-pointer -m486 -Wall:(unknown)::BN_LLONG $x86_gcc_des $x86_gcc_opts:",
#"FreeBSD",   "gcc:-DTERMIOS -DL_ENDIAN -D_ANSI_SOURCE -fomit-frame-pointer -O3 -m486 -Wall:(unknown)::BN_LLONG $x86_gcc_des $x86_gcc_opts:$x86_out_asm",
"FreeBSD",      "gcc:-DTERMIOS -DL_ENDIAN -fomit-frame-pointer -O3 -m486 -Wall:(unknown)::BN_LLONG $x86_gcc_des $x86_gcc_opts:$x86_out_asm",
"FreeBSD-elf",  "gcc:-DTERMIOS -DL_ENDIAN -fomit-frame-pointer -O3 -m486 -Wall:(unknown)::BN_LLONG $x86_gcc_des $x86_gcc_opts:$x86_elf_asm",
"bsdi-gcc",     "gcc:-O3 -ffast-math -DL_ENDIAN -DPERL5 -m486:(unknown)::RSA_LLONG $x86_gcc_des $x86_gcc_opts:$x86_bsdi_asm",
"nextstep",	"cc:-O3 -Wall:(unknown)::BN_LLONG $x86_gcc_des ${x86_gcc_opts}:::",
# NCR MP-RAS UNIX ver 02.03.01
"ncr-scde","cc:-O6 -Xa -Hoff=BEHAVED -686 -Hwide -Hiw:(unknown):-lsocket -lnsl:$x86_gcc_des ${x86_gcc_opts}:::",

# UnixWare 2.0
"unixware-2.0","cc:-O -DFILIO_H:(unknown):-lsocket -lnsl:$x86_gcc_des ${x86_gcc_opts}:::",
"unixware-2.0-pentium","cc:-O -DFILIO_H -Kpentium -Kthread:(unknown):-lsocket -lnsl:MD2_CHAR RC4_INDEX ${x86_gcc_des}::",

# IBM's AIX.
"aix-cc",   "cc:-O -DAIX -DB_ENDIAN:(unknown)::BN_LLONG RC4_CHAR:::",
"aix-gcc",  "gcc:-O3 -DAIX -DB_ENDIAN:(unknown)::BN_LLONG RC4_CHAR:::",

#
# Cray T90 (SDSC)
# It's Big-endian, but the algorithms work properly when B_ENDIAN is NOT
# defined.  The T90 ints and longs are 8 bytes long, and apparently the
# B_ENDIAN code assumes 4 byte ints.  Fortunately, the non-B_ENDIAN and
# non L_ENDIAN code aligns the bytes in each word correctly.
#
# The BIT_FIELD_LIMITS define is to avoid two fatal compiler errors:
#'Taking the address of a bit field is not allowed. '
#'An expression with bit field exists as the operand of "sizeof" '
# (written by Wayne Schroeder <schroede@SDSC.EDU>)
"cray-t90-cc", "cc: -DBIT_FIELD_LIMITS -DTERMIOS:(unknown)::SIXTY_FOUR_BIT_LONG DES_INT:::",

#
# Cray T3E (Research Center Juelich, beckman@acl.lanl.gov)
#
# The BIT_FIELD_LIMITS define was written for the C90 (it seems).  I added
# another use.  Basically, the problem is that the T3E uses some bit fields
# for some st_addr stuff, and then sizeof and address-of fails
# I could not use the ams/alpha.o option because the Cray assembler, 'cam'
# did not like it.
"cray-t3e", "cc: -DBIT_FIELD_LIMITS -DTERMIOS:(unknown)::SIXTY_FOUR_BIT_LONG DES_INT:::",

# DGUX, 88100.
"dgux-R3-gcc",	"gcc:-O3 -fomit-frame-pointer:(unknown)::RC4_INDEX DES_UNROLL:::",
"dgux-R4-gcc",	"gcc:-O3 -fomit-frame-pointer:(unknown):-lnsl -lsocket:RC4_INDEX:RC4_INDEX DES_UNROLL:::",
"dgux-R4-x86-gcc",	"gcc:-O3 -fomit-frame-pointer -DL_ENDIAN:(unknown):-lnsl -lsocket:BN_LLONG $x86_gcc_des $x86_gcc_opts:$x86_elf_asm",

# SCO 5 - Ben Laurie <ben@algroup.co.uk> says the -O breaks the
# SCO cc.
"sco5-cc",  "cc::(unknown):-lsocket:$x86_gcc_des ${x86_gcc_opts}:::", # des options?

# Sinix RM400
"SINIX-N","/usr/ucb/cc:-O2 -misaligned:(unknown):-lucb:RC4_INDEX RC4_CHAR:::",

# Windows NT, Microsoft Visual C++ 4.0

"VC-NT","cl::(unknown)::BN_LLONG RC4_INDEX ${x86_gcc_opts}:::",
"VC-WIN32","cl::(unknown)::BN_LLONG RC4_INDEX ${x86_gcc_opts}:::",
"VC-WIN16","cl::(unknown)::MD2_CHAR DES_UNROLL DES_PTR RC4_INDEX THIRTY_TWO_BIT:::",
"VC-W31-16","cl::(unknown)::BN_LLONG MD2_CHAR DES_UNROLL DES_PTR RC4_INDEX SIXTEEN_BIT:::",
"VC-W31-32","cl::(unknown)::BN_LLONG MD2_CHAR DES_UNROLL DES_PTR RC4_INDEX THIRTY_TWO_BIT:::",
"VC-MSDOS","cl::(unknown)::BN_LLONG MD2_CHAR DES_UNROLL DES_PTR RC4_INDEX SIXTEEN_BIT:::",

# Borland C++ 4.5
"BC-32","bcc32::(unknown)::BN_LLONG DES_PTR RC4_INDEX:::",
"BC-16","bcc::(unknown)::BN_LLONG DES_PTR RC4_INDEX SIXTEEN_BIT:::",

# CygWin32
"CygWin32", "gcc:-DTERMIOS -DL_ENDIAN -fomit-frame-pointer -O3 -m486 -Wall:(unknown)::BN_LLONG $x86_gcc_des $x86_gcc_opts:",

# Ultrix from Bernhard Simon <simon@zid.tuwien.ac.at>
"ultrix-cc","cc:-std1 -O -Olimit 1000 -DL_ENDIAN:(unknown)::::::",
"ultrix-gcc","gcc:-O3 -DL_ENDIAN:(unknown)::::::",
# K&R C is no longer supported; you need gcc on old Ultrix installations
##"ultrix","cc:-O2 -DNOPROTO -DNOCONST -DL_ENDIAN:(unknown)::::::",

# Some OpenBSD from Bob Beck <beck@obtuse.com>
"OpenBSD-alpha","gcc:-DTERMIOS -O3 -fomit-frame-pointer:(unknown):SIXTY_FOUR_BIT_LONG DES_INT DES_PTR DES_RISC2:::",
"OpenBSD-x86",  "gcc:-DL_ENDIAN -DTERMIOS -O3 -fomit-frame-pointer -m486:(unknown)::BN_LLONG $x86_gcc_des $x86_gcc_opts:$x86_out_asm",
"OpenBSD",      "gcc:-DTERMIOS -O3 -fomit-frame-pointer:(unknown)::BN_LLONG RC2_CHAR RC4_INDEX DES_UNROLL:::",
"OpenBSD-mips","gcc:-O2 -DL_ENDIAN:(unknown):BN_LLONG MD2_CHAR RC4_INDEX RC4_CHAR DES_UNROLL DES_RISC2 DES_PTR BF_PTR::::",

);

my @WinTargets=qw(VC-NT VC-WIN32 VC-WIN16 VC-W31-16 VC-W31-32 VC-MSDOS BC-32
	BC-16 CygWin32);

my $prefix="";
my $openssldir="";
my $install_prefix="";
my $no_threads=0;
my $threads=0;
my $no_asm=0;
my @skip=();
my $Makefile="Makefile.ssl";
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 $bf_enc	="bf_enc.o";
my $cast_enc="c_enc.o";
my $rc4_enc="rc4_enc.o";
my $rc5_enc="rc5_enc.o";
my $md5_obj="";
my $sha1_obj="";
my $rmd160_obj="";
my $processor="";
my $ranlib;
my $perl;

$ranlib=&which("ranlib") or $ranlib="true";
$perl=&which("perl5") or $perl=&which("perl");

&usage if ($#ARGV < 0);

my $flags="";
my $depflags="";
my $libs="";
my $target="";
foreach (@ARGV)
	{
	if (/^no-asm$/)
		{ $no_asm=1; }
	elsif (/^no-threads$/)
		{ $no_threads=1; }
	elsif (/^threads$/)
		{ $threads=1; }
	elsif (/^no-(.+)$/)
		{
		my $algo=$1;
		push @skip,$algo;
		$algo =~ tr/[a-z]/[A-Z]/;
		$flags .= "-DNO_$algo ";
		$depflags .= "-DNO_$algo ";
		}
	elsif (/^386$/)
		{ $processor=386; }
	elsif (/^rsaref$/)
		{
		$libs.= "-lRSAglue -lrsaref ";
		$flags.= "-DRSAref ";
		}
	elsif (/^-/)
		{
		if (/^-[lL](.*)$/)
			{
			$libs.=$_." ";
			}
		elsif (/^-[DfK](.*)$/)
			{
			$flags.=$_." ";
			}
		elsif (/^--prefix=(.*)$/)
			{
			$prefix=$1;
			}
		elsif (/^--openssldir=(.*)$/)
			{
			$openssldir=$1;
			}
		elsif (/^--install.prefix=(.*)$/)
			{
			$install_prefix=$1;
			}
		else
			{
			print STDERR $usage;
			exit(1);
			}
		}
	elsif ($_ =~ /^([^:]+):(.+)$/) {
		eval "\$table{\$1} = \"$2\""; # allow $xxx constructs in the string
		$target=$1;
	}
	else
		{
		die "target already defined - $target\n" if ($target ne "");
		$target=$_;
		}
}

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

my $IsWindows=scalar grep /^$target$/,@WinTargets;

$openssldir="/usr/local/ssl" if ($openssldir eq "" and $prefix eq "");
$prefix=$openssldir if $prefix eq "";

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

$openssldir=$prefix . "/ssl" if $openssldir eq "";
$openssldir=$prefix . "/" . $openssldir if $openssldir !~ /^\//;


print "IsWindows=$IsWindows\n";

(my $cc,my $cflags,my $thread_cflag,my $lflags,my $bn_ops,my $bn_obj,my $des_obj,my $bf_obj,
 $md5_obj,$sha1_obj,my $cast_obj,my $rc4_obj,$rmd160_obj,my $rc5_obj)=
	split(/\s*:\s*/,$table{$target} . ":" x 20 , -1);
$cflags="$flags$cflags" if ($flags ne "");

my $thread_cflags;
if ($thread_cflag ne "(unknown)" && !$no_threads)
	{
	# If we know how to do it, support threads by default.
	$threads = 1;
	}
if ($thread_cflag eq "(unknown)")
	{
	# If the user asked for "threads", hopefully they also provided
	# any system-dependent compiler options that are necessary.
	$thread_cflags="-DTHREADS $cflags" 
	}
else
	{
	$thread_cflags="-DTHREADS $thread_cflag $cflags" 
	}	

$lflags="$libs$lflags"if ($libs ne "");

if ($no_asm)
	{
	$bn_obj=$des_obj=$bf_obj=$cast_obj=$rc4_obj=$rc5_obj="";
	$sha1_obj=$md5_obj=$rmd160_obj="";
	}

if ($threads)
	{
		$cflags=$thread_cflags;
	}

#my ($bn1)=split(/\s+/,$bn_obj);
#$bn1 = "" unless defined $bn1;
#$bn1=$bn_asm unless ($bn1 =~ /\.o$/);
#$bn_obj="$bn1";

$bn_obj = $bn_asm unless $bn_obj ne "";

$des_obj=$des_enc	unless ($des_obj =~ /\.o$/);
$bf_obj=$bf_enc		unless ($bf_obj =~ /\.o$/);
$cast_obj=$cast_enc	unless ($cast_obj =~ /\.o$/);
$rc4_obj=$rc4_enc	unless ($rc4_obj =~ /\.o$/);
$rc5_obj=$rc5_enc	unless ($rc5_obj =~ /\.o$/);
if ($sha1_obj =~ /\.o$/)
	{
#	$sha1_obj=$sha1_enc;
	$cflags.=" -DSHA1_ASM";
	}
if ($md5_obj =~ /\.o$/)
	{
#	$md5_obj=$md5_enc;
	$cflags.=" -DMD5_ASM";
	}
if ($rmd160_obj =~ /\.o$/)
	{
#	$rmd160_obj=$rmd160_enc;
	$cflags.=" -DRMD160_ASM";
	}

my $version = "unknown";
my $major = "unknown";
my $minor = "unknown";

open(IN,'<crypto/opensslv.h') || die "unable to read opensslv.h:$!\n";
while (<IN>)
	{
	$version=$1 if /OPENSSL.VERSION.TEXT.*OpenSSL (\S+) /;
	}
close(IN);

if ($version =~ /(^[0-9]*)\.([\0-9\.]*)/)
	{
	$major=$1;
	$minor=$2;
	}

open(IN,'<Makefile.org') || die "unable to read Makefile.org:$!\n";
open(OUT,">$Makefile") || die "unable to create $Makefile:$!\n";
my $sdirs=0;
while (<IN>)
	{
	chop;
	$sdirs = 1 if /^SDIRS=/;
	$sdirs = 0 unless /\\$/;
	if ($sdirs) {
		my $dir;
		foreach $dir (@skip) {
			s/$dir//;
			}
		}
	s/^VERSION=.*/VERSION=$version/;
	s/^MAJOR=.*/MAJOR=$major/;
	s/^MINOR=.*/MINOR=$minor/;
	s/^INSTALLTOP=.*$/INSTALLTOP=$prefix/;
	s/^OPENSSLDIR=.*$/OPENSSLDIR=$openssldir/;
	s/^INSTALL_PREFIX=.*$/INSTALL_PREFIX=$install_prefix/;
	s/^PLATFORM=.*$/PLATFORM=$target/;
	s/^CC=.*$/CC= $cc/;
	s/^CFLAG=.*$/CFLAG= $cflags/;
	s/^DEPFLAG=.*$/DEPFLAG= $depflags/;
	s/^EX_LIBS=.*$/EX_LIBS= $lflags/;
	s/^BN_ASM=.*$/BN_ASM= $bn_obj/;
	s/^DES_ENC=.*$/DES_ENC= $des_obj/;
	s/^BF_ENC=.*$/BF_ENC= $bf_obj/;
	s/^CAST_ENC=.*$/CAST_ENC= $cast_obj/;
	s/^RC4_ENC=.*$/RC4_ENC= $rc4_obj/;
	s/^RC5_ENC=.*$/RC5_ENC= $rc5_obj/;
	s/^MD5_ASM_OBJ=.*$/MD5_ASM_OBJ= $md5_obj/;
	s/^SHA1_ASM_OBJ=.*$/SHA1_ASM_OBJ= $sha1_obj/;
	s/^RMD160_ASM_OBJ=.*$/RMD160_ASM_OBJ= $rmd160_obj/;
	s/^PROCESSOR=.*/PROCESSOR= $processor/;
	s/^RANLIB=.*/RANLIB= $ranlib/;
	s/^PERL=.*/PERL= $perl/;
	print OUT $_."\n";
	}
close(IN);
close(OUT);

print "CC            =$cc\n";
print "CFLAG         =$cflags\n";
print "EX_LIBS       =$lflags\n";
print "BN_ASM        =$bn_obj\n";
print "DES_ENC       =$des_obj\n";
print "BF_ENC        =$bf_obj\n";
print "CAST_ENC      =$cast_obj\n";
print "RC4_ENC       =$rc4_obj\n";
print "RC5_ENC       =$rc5_obj\n";
print "MD5_OBJ_ASM   =$md5_obj\n";
print "SHA1_OBJ_ASM  =$sha1_obj\n";
print "RMD160_OBJ_ASM=$rmd160_obj\n";
print "PROCESSOR     =$processor\n";
print "RANLIB        =$ranlib\n";
print "PERL          =$perl\n";

my $des_ptr=0;
my $des_risc1=0;
my $des_risc2=0;
my $des_unroll=0;
my $bn_ll=0;
my $def_int=2;
my $rc4_int=$def_int;
my $md2_int=$def_int;
my $idea_int=$def_int;
my $rc2_int=$def_int;
my $rc4_idx=0;
my $bf_ptr=0;
my @type=("char","short","int","long");
my ($b64l,$b64,$b32,$b16,$b8)=(0,0,1,0,0);

my $des_int;

foreach (sort split(/\s+/,$bn_ops))
	{
	$des_ptr=1 if /DES_PTR/;
	$des_risc1=1 if /DES_RISC1/;
	$des_risc2=1 if /DES_RISC2/;
	$des_unroll=1 if /DES_UNROLL/;
	$des_int=1 if /DES_INT/;
	$bn_ll=1 if /BN_LLONG/;
	$rc4_int=0 if /RC4_CHAR/;
	$rc4_int=3 if /RC4_LONG/;
	$rc4_idx=1 if /RC4_INDEX/;
	$md2_int=0 if /MD2_CHAR/;
	$md2_int=3 if /MD2_LONG/;
	$idea_int=1 if /IDEA_SHORT/;
	$idea_int=3 if /IDEA_LONG/;
	$rc2_int=1 if /RC2_SHORT/;
	$rc2_int=3 if /RC2_LONG/;
	$bf_ptr=1 if $_ eq "BF_PTR";
	$bf_ptr=2 if $_ eq "BF_PTR2";
	($b64l,$b64,$b32,$b16,$b8)=(0,1,0,0,0) if /SIXTY_FOUR_BIT/;
	($b64l,$b64,$b32,$b16,$b8)=(1,0,0,0,0) if /SIXTY_FOUR_BIT_LONG/;
	($b64l,$b64,$b32,$b16,$b8)=(0,0,1,0,0) if /THIRTY_TWO_BIT/;
	($b64l,$b64,$b32,$b16,$b8)=(0,0,0,1,0) if /SIXTEEN_BIT/;
	($b64l,$b64,$b32,$b16,$b8)=(0,0,0,0,1) if /EIGHT_BIT/;
	}

open(IN,'<crypto/opensslconf.h.in') || die "unable to read crypto/opensslconf.h.in:$!\n";
open(OUT,'>crypto/opensslconf.h') || die "unable to create crypto/opensslconf.h:$!\n";
while (<IN>)
	{
	if	(/^#define\s+OPENSSLDIR/)
		{ print OUT "#define OPENSSLDIR \"$openssldir\"\n"; }
	elsif	(/^#((define)|(undef))\s+SIXTY_FOUR_BIT_LONG/)
		{ printf OUT "#%s SIXTY_FOUR_BIT_LONG\n",($b64l)?"define":"undef"; }
	elsif	(/^#((define)|(undef))\s+SIXTY_FOUR_BIT/)
		{ printf OUT "#%s SIXTY_FOUR_BIT\n",($b64)?"define":"undef"; }
	elsif	(/^#((define)|(undef))\s+THIRTY_TWO_BIT/)
		{ printf OUT "#%s THIRTY_TWO_BIT\n",($b32)?"define":"undef"; }
	elsif	(/^#((define)|(undef))\s+SIXTEEN_BIT/)
		{ printf OUT "#%s SIXTEEN_BIT\n",($b16)?"define":"undef"; }
	elsif	(/^#((define)|(undef))\s+EIGHT_BIT/)
		{ printf OUT "#%s EIGHT_BIT\n",($b8)?"define":"undef"; }
	elsif	(/^#((define)|(undef))\s+BN_LLONG\s*$/)
		{ printf OUT "#%s BN_LLONG\n",($bn_ll)?"define":"undef"; }
	elsif	(/^\#define\s+DES_LONG\s+.*/)
		{ printf OUT "#define DES_LONG unsigned %s\n",
			($des_int)?'int':'long'; }
	elsif	(/^\#(define|undef)\s+DES_PTR/)
		{ printf OUT "#%s DES_PTR\n",($des_ptr)?'define':'undef'; }
	elsif	(/^\#(define|undef)\s+DES_RISC1/)
		{ printf OUT "#%s DES_RISC1\n",($des_risc1)?'define':'undef'; }
	elsif	(/^\#(define|undef)\s+DES_RISC2/)
		{ printf OUT "#%s DES_RISC2\n",($des_risc2)?'define':'undef'; }
	elsif	(/^\#(define|undef)\s+DES_UNROLL/)
		{ printf OUT "#%s DES_UNROLL\n",($des_unroll)?'define':'undef'; }
	elsif	(/^#define\s+RC4_INT\s/)
		{ printf OUT "#define RC4_INT unsigned %s\n",$type[$rc4_int]; }
	elsif	(/^#((define)|(undef))\s+RC4_INDEX/)
		{ printf OUT "#%s RC4_INDEX\n",($rc4_idx)?"define":"undef"; }
	elsif	(/^#define\s+MD2_INT\s/)
		{ printf OUT "#define MD2_INT unsigned %s\n",$type[$md2_int]; }
	elsif	(/^#define\s+IDEA_INT\s/)
		{printf OUT "#define IDEA_INT unsigned %s\n",$type[$idea_int];}
	elsif	(/^#define\s+RC2_INT\s/)
		{printf OUT "#define RC2_INT unsigned %s\n",$type[$rc2_int];}
	elsif (/^#(define|undef)\s+BF_PTR/)
		{
		printf OUT "#undef BF_PTR\n" if $bf_ptr == 0;
		printf OUT "#define BF_PTR\n" if $bf_ptr == 1;
		printf OUT "#define BF_PTR2\n" if $bf_ptr == 2;
	        }
	else
		{ print OUT $_; }
	}
close(IN);
close(OUT);

# Fix the date

print "SIXTY_FOUR_BIT_LONG mode\n" if $b64l;
print "SIXTY_FOUR_BIT mode\n" if $b64;
print "THIRTY_TWO_BIT mode\n" if $b32;
print "SIXTEEN_BIT mode\n" if $b16;
print "EIGHT_BIT mode\n" if $b8;
print "DES_PTR used\n" if $des_ptr;
print "DES_RISC1 used\n" if $des_risc1;
print "DES_RISC2 used\n" if $des_risc2;
print "DES_UNROLL used\n" if $des_unroll;
print "DES_INT used\n" if $des_int;
print "BN_LLONG mode\n" if $bn_ll;
print "RC4 uses u$type[$rc4_int]\n" if $rc4_int != $def_int;
print "RC4_INDEX mode\n" if $rc4_idx;
print "MD2 uses u$type[$md2_int]\n" if $md2_int != $def_int;
print "IDEA uses u$type[$idea_int]\n" if $idea_int != $def_int;
print "RC2 uses u$type[$rc2_int]\n" if $rc2_int != $def_int;
print "BF_PTR used\n" if $bf_ptr == 1; 
print "BF_PTR2 used\n" if $bf_ptr == 2; 

if($IsWindows) {
	open (OUT,">crypto/date.h") || die "Can't open date.h";
	printf OUT "#define DATE \"%s\"\n", scalar gmtime();
	close(OUT);
} else {
	if ( $perl =~ /./ ) {
		(system "make -f Makefile.ssl PERL=\'$perl\' links") == 0 or exit $?;
	} else {
		(system 'make -f Makefile.ssl links') == 0 or exit $?;
	}
	(system 'make depend') == 0 or exit $? if $depflags ne "";
	&dofile("tools/c_rehash",$openssldir,'^DIR=',	'DIR=%s',);
	&dofile("util/mk1mf.pl",$openssldir,
				('^\$INSTALLTOP=','$INSTALLTOP="%s";',));
}


my $pwd;

if($IsWindows) {
	$pwd="(current directory)";
} else {
	$pwd =`pwd`;
	chop($pwd);
}
print <<EOF;

NOTE: The OpenSSL header files have been moved from include/*.h
to include/openssl/*.h.  To include OpenSSL header files, now
directives of the form
     #include <openssl/foo.h>
should be used instead of #include <foo.h>.
These new file locations allow installing the OpenSSL header
files in /usr/local/include/openssl/ and should help avoid
conflicts with other libraries.

To compile programs that use the old form <foo.h>,
usually an additional compiler option will suffice: E.g., add
     -I$prefix/include/openssl
or
     -I$pwd/include/openssl
to the CFLAGS in the Makefile of the program that you want to compile
(and leave all the original -I...'s in place!).

Please make sure that no old OpenSSL header files are around:
The include directory should now be empty except for the openssl
subdirectory.

EOF

print <<\EOF if (!$no_threads && !$threads);

The library could not be configured for supporting multi-threaded
applications as the compiler options required on this system are not known.
See file INSTALL for details.

EOF

exit(0);

sub usage
	{
	print STDERR $usage;
	print STDERR "pick os/compiler from:";
	my $j=0;
	my $i;
	foreach $i (sort keys %table)
		{
		next if $i =~ /^debug/;
		print STDERR "\n" if ($j++ % 4) == 0;
		printf(STDERR "%-18s ",$i);
		}
	foreach $i (sort keys %table)
		{
		next if $i !~ /^debug/;
		print STDERR "\n" if ($j++ % 4) == 0;
		printf(STDERR "%-18s ",$i);
		}
	print STDERR "\n";
	exit(1);
	}

sub which
	{
	my($name)=@_;
	my $path;
	foreach $path (split /:/, $ENV{PATH})
		{
		if (-x "$path/$name")
			{
			return "$path/$name" unless ($name eq "perl" and
			 system("$path/$name -e " . '\'exit($]<5.0);\''));
			}
		}
	}

sub dofile
	{
	my $f; my $p; my %m; my @a; my $k; my $ff;
	($f,$p,%m)=@_;

	open(IN,"<$f") || die "unable to open $f:$!\n";
	@a=<IN>;
	close(IN);
	foreach $k (keys %m)
		{
		grep(/$k/ && ($_=sprintf($m{$k}."\n",$p)),@a);
		}
	($ff=$f) =~ s/\..*$//;
	open(OUT,">$ff.new") || die "unable to open $f:$!\n";
	print OUT @a;
	close(OUT);
	rename($f,"$ff.bak") || die "unable to rename $f\n";
	rename("$ff.new",$f) || die "unable to rename $ff.new\n";
	}