Configure - third_party/openssl - Git at Google

 #!/usr/local/bin/perl
 #
 # see PROBLEMS for instructions on what sort of things to do when
 # tracking a bug --tjh
 #
 # extra options
 # -DRSAref	build to use RSAref
 # -DNO_IDEA	build with no IDEA algorithm
 # -DNO_RC4	build with no RC4 algorithm
 # -DNO_RC2	build with no RC2 algorithm
 # -DNO_BF	build with no Blowfish algorithm
 # -DNO_DES	build with no DES/3DES algorithm
 # -DNO_MD2	build with no MD2 algorithm
 #
 # 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/md/md2.h
 # MD2_LONG	use 'long' instead of 'int' for MD2_INT in crypto/md/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_enc.c.  This turns on
 #		array lookups instead of pointer use.
 # BF_PTR	use 'pointer arithmatic' for Blowfish (unsafe on Alpha).
 # BF_PTR2	use a pentium/intel specific version.

 $x86_gcc_des="DES_PTR DES_RISC1 DES_UNROLL";

 # MD2_CHAR slags pentium pros
 $x86_gcc_opts="RC4_INDEX MD2_INT BF_PTR2";

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

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

 # -DB_ENDIAN slows things down on a sparc

 #config-string	CC : CFLAGS : LDFLAGS : special header file mods:bn_asm \
 # des_asm:bf_asm
 %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::",

 # A few of my development configs
 "purify",	"purify gcc:-g -DPURIFY -Wall:-lsocket -lnsl::::",
 "debug",	"gcc:-DREF_CHECK -DCRYPTO_MDEBUG -g -Wformat -Wshadow -Wmissing-prototypes -Wmissing-declarations -Werror:::::",
 "dist",		"cc:-O -DNOPROTO::::",

 # Basic configs that should work on any box
 "gcc",		"gcc:-O3::BN_LLONG:::",
 "cc",		"cc:-O -DNOPROTO -DNOCONST:::::",

 # My solaris setups
 "solaris-x86-gcc","gcc:-O3 -fomit-frame-pointer -m486 -Wall -DL_ENDIAN:\
 	-lsocket -lnsl:BN_LLONG $x86_gcc_des $x86_gcc_opts:asm/x86-sol.o:asm/dx86-sol.o asm/cx86-sol.o:asm/bx86-sol.o",
 "solaris-sparc-gcc","gcc:-O3 -fomit-frame-pointer -mv8 -Wall:\
 	-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:\
 	-lsocket -lnsl:BN_LLONG RC4_CHAR DES_PTR DES_UNROLL BF_PTR:asm/sparc.o::",
 # 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:-lsocket -lnsl:\
 	BN_LLONG RC4_CHAR DES_PTR DES_RISC1 DES_UNROLL BF_PTR:asm/sparc.o::",
 "solaris-usparc-sc4","cc:-xtarget=ultra -xarch=v8plus -Xa -xO5 -DB_ENDIAN:\
 	-lsocket -lnsl:\
 	BN_LLONG RC4_CHAR DES_PTR DES_RISC1 DES_UNROLL BF_PTR:asm/sparc.o::",

 # Sunos configs, assuming sparc for the gcc one.
 "sunos-cc", "cc:-O4 -DNOPROTO -DNOCONST::DES_UNROLL:::",
 "sunos-gcc","gcc:-O3 -mv8::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].
 #"irix-gcc","gcc:-O2 -mips2::BN_LLONG RC4_INDEX RC4_CHAR:::",
 "irix-gcc","gcc:-O2 -DTERMIOS -DB_ENDIAN::BN_LLONG MD2_CHAR RC4_INDEX RC4_CHAR DES_UNROLL DES_RISC2 DES_PTR BF_PTR:::",
 "irix-cc", "cc:-O2 -DTERMIOS -DB_ENDIAN::DES_PTR DES_RISC2 DES_UNROLL BF_PTR:asm/r3000.o::",
 "debug-irix-cc", "cc:-w2 -g -DCRYPTO_MDEBUG -DTERMIOS -DB_ENDIAN:::asm/r3000.o::",

 # HPUX config.  I've been building on HPUX 9, so the options may be
 # different on version 10.  The pa-risc2.o assember file is 2 times
 # faster than the old asm/pa-risc.o version but it may not run on old
 # PA-RISC CPUs.  If you have problems, swap back to the old one.
 # Both were generated by gcc, so use the C version with the PA-RISC specific
 # options turned on if you are using gcc.
 "hpux-cc",	"cc:-DB_ENDIAN -D_HPUX_SOURCE -Aa -Ae +ESlit +O4 -Wl,-a,archive::DES_PTR DES_UNROLL DES_RISC1:asm/pa-risc2.o::",
 "hpux-kr-cc",	"cc:-DB_ENDIAN -DNOCONST -DNOPROTO -D_HPUX_SOURCE::DES_PTR DES_UNROLL:asm/pa-risc2.o::",
 "hpux-gcc",	"gcc:-DB_ENDIAN -O3::BN_LLONG DES_PTR DES_UNROLL DES_RISC1:::",

 # Dec Alpha, OSF/1 - the alpha400-cc is the flags for a 21164A with
 # the new compiler
 "alpha-gcc","gcc:-O3::SIXTY_FOUR_BIT_LONGS DES_INT DES_PTR DES_RISC2:asm/alpha.o::",
 "alpha-cc", "cc:-O2::SIXTY_FOUR_BIT_LONGS DES_INT DES_PTR DES_RISC2:asm/alpha.o::",
 "alpha400-cc", "cc:-arch host -tune host -fast -std -O4 -inline speed::SIXTY_FOUR_BIT_LONG:asm/alpha.o::",

 # The intel boxes :-), It would be worth seeing if bsdi-gcc can use the
 # x86-lnx.o file file since it is hand tweaked assembler.
 "linux-elf",	"gcc:-DL_ENDIAN -DTERMIO -O3 -fomit-frame-pointer -m486 -Wall -Wuninitialized::BN_LLONG $x86_gcc_des $x86_gcc_opts:asm/x86-lnx.o:asm/dx86-elf.o asm/cx86-elf.o:asm/bx86-elf.o",
 "debug-linux-elf","gcc:-DREF_CHECK -DCRYPTO_MDEBUG -DL_ENDIAN -DTERMIO -g -m486 -Wall:-lefence:BN_LLONG $x86_gcc_des $x86_gcc_opts:asm/x86-lnx.o:asm/dx86-elf.o asm/cx86-elf.o:asm/bx86-elf.o",
 "linux-aout",	"gcc:-DL_ENDIAN -DTERMIO -O3 -fomit-frame-pointer -m486 -Wall::BN_LLONG $x86_gcc_des $x86_gcc_opts:asm/x86-lnxa.o:asm/dx86-out.o asm/cx86-out.o:asm/bx86-out.o",
 "NetBSD-sparc",	"gcc:-DTERMIOS -O3 -fomit-frame-pointer -mv8 -Wall::BN_LLONG MD2_CHAR RC4_INDEX DES_UNROLL:::",
 "NetBSD-x86",	"gcc:-DTERMIOS -D_ANSI_SOURCE -O3 -fomit-frame-pointer -m486 -Wall::BN_LLONG $x86_gcc_des $x86_gcc_opts:asm/x86-lnxa.o:asm/dx86-out.o asm/cx86-out.o:asm/bx86-out.o",
 "FreeBSD",   "gcc:-DTERMIOS -D_ANSI_SOURCE -fomit-frame-pointer -O3 -m486 -Wall::BN_LLONG $x86_gcc_des $x86_gcc_opts:asm/x86-lnxa.o:asm/dx86-out.o asm/cx86-out.o:asm/bx86-out.o",
 #"bsdi-gcc",	"shlicc2:-O3 -ffast-math-m486::RSA_LLONG $x86_gcc_des $x86_gcc_opts:::",
 #"bsdi-gcc",     "gcc:-O3 -ffast-math -DPERL5 -m486::RSA_LLONG $x86_gc_des $x86_gcc_opts:asm/x86-bsdi.o:asm/dx86bsdi.o asm/cx86bsdi.o:asm/bx86bsdi.o",
 "bsdi-gcc",     "gcc:-O3 -ffast-math -DPERL5 -m486::RSA_LLONG $x86_gc_des $x86_gcc_opts:::",
 "nextstep",	"cc:-O3 -Wall::BN_LLONG $x86_gcc_des $x86_gcc_opts:::",

 # UnixWare 2.0
 "unixware-2.0","cc:-O:-lsocket -lnsl:$x86_gcc_des $x86_gcc_opts:::",
 "unixware-2.0-pentium","cc:-O -Kpentium -Kthread:-lsocket -lnsl:MD2_CHAR RC4_INDEX $x86_des_des::",

 # IBM's AIX.
 "aix-cc",   "cc:-O -DAIX -DB_ENDIAN::BN_LLONG RC4_CHAR:::",
 "aix-gcc",  "gcc:-O2 -DAIX -DB_ENDIAN::BN_LLONG RC4_CHAR:::",

 # DGUX, 88100.
 "dgux-R3-gcc",	"gcc:-O3 -fomit-frame-pointer::RC4_INDEX DES_UNROLL:::",
 "dgux-R4-gcc",	"gcc:-O3 -fomit-frame-pointer:-lnsl -lsocket:RC4_INDEX:RC4_INDEX DES_UNROLL:::",
 "dgux-R4-x86-gcc",	"gcc:-O3 -fomit-frame-pointer -DL_ENDIAN:-lnsl -lsocket:BN_LLONG $x86_gcc_des $x86_gcc_opts:asm/x86-lnx.o:asm/dx86-elf.o asm/cx86-elf.o:asm/bx86-elf.o",

 # SCO 5
 "sco5-cc",  "cc:-O:-lsocket:$x86_gcc_des $x86_gcc_opts:::", # des options?

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

 # Windows NT, Microsoft Visual C++ 4.0

 # hmm... bug in perl under NT, I need to concatinate :-(
 "VC-NT","cl:::BN_LLONG RC4_INDEX ".$x86_gcc_opts.":::",
 "VC-WIN32","cl:::BN_LLONG RC4_INDEX ".$x86_gcc_opts.":::",
 "VC-WIN16","cl:::MD2_CHAR DES_UNROLL DES_PTR RC4_INDEX THIRTY_TWO_BIT:::",
 "VC-W31-16","cl:::BN_LLONG MD2_CHAR DES_UNROLL DES_PTR RC4_INDEX SIXTEEN_BIT:::",
 "VC-W31-32","cl:::MD2_CHAR DES_UNROLL DES_PTR RC4_INDEX THIRTY_TWO_BIT:::",
 "VC-MSDOS","cl:::BN_LLONG MD2_CHAR DES_UNROLL DES_PTR RC4_INDEX SIXTEEN_BIT:::",

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

 $postfix="org";
 $Makefile="Makefile.ssl";
 $des_locl="crypto/des/des_locl.h";
 $des	="crypto/des/des.h";
 $bn	="crypto/bn/bn.h";
 $md2	="crypto/md/md2.h";
 $rc4	="crypto/rc4/rc4.h";
 $rc4_enc="crypto/rc4/rc4_enc.c";
 $idea	="crypto/idea/idea.h";
 $rc2	="crypto/rc2/rc2.h";
 $bf	="crypto/bf/bf_locl.h";
 $bn_mulw="bn_mulw.o";
 $des_enc="des_enc.o fcrypt_b.o";
 $bf_enc	="bf_enc.o";

 if ($#ARGV < 0)
 	{
 	&bad_target;
 	exit(1);
 	}

 $flags="";
 foreach (@ARGV)
 	{
 	if ($_ =~ /^-/)
 		{
 		if ($_ =~ /^-[lL](.*)$/)
 			{
 			$libs.=$_." ";
 			}
 		elsif ($_ =~ /^-D(.*)$/)
 			{
 			$flags.=$_." ";
 			}
 		else
 			{
 			die "unknown options, only -Dxxx, -Lxxx -lxxx supported\n";
 			}
 		}
 	else
 		{
 		die "target already defined - $target\n" if ($target ne "");
 		$target=$_;
 		if (!defined($table{$target}))
 			{
 			&bad_target;
 			exit(1);
 			}
 		}
 	}

 if (!defined($table{$target}))
 	{
 	&bad_target;
 	exit(1);
 	}

 ($cc,$cflags,$lflags,$bn_ops,$bn_obj,$des_obj,$bf_obj)=
 	split(/\s*:\s*/,$table{$target});
 $cflags="$flags$cflags" if ($flags ne "");
 $lflags="$libs$lflags"if ($libs ne "");

 $bn_obj=$bn_mulw unless ($bn_obj =~ /\.o$/);
 $des_obj=$des_enc unless ($des_obj =~ /\.o$/);
 $bf_obj=$bf_enc unless ($bf_obj =~ /\.o$/);

 $n=&file_new($Makefile);
 open(IN,"<".$Makefile) || die "unable to read $Makefile:$!\n";
 open(OUT,">".$n) || die "unable to read $n:$!\n";
 while (<IN>)
 	{
 	chop;
 	s/^CC=.*$/CC= $cc/;
 	s/^CFLAG=.*$/CFLAG= $cflags/;
 	s/^EX_LIBS=.*$/EX_LIBS= $lflags/;
 	s/^BN_MULW=.*$/BN_MULW= $bn_obj/;
 	s/^DES_ENC=.*$/DES_ENC= $des_obj/;
 	s/^BF_ENC=.*$/BF_ENC= $bf_obj/;
 	print OUT $_."\n";
 	}
 close(IN);
 close(OUT);
 &Rename($Makefile,&file_old($Makefile));
 &Rename($n,$Makefile);
 print "CC     =$cc\n";
 print "CFLAG  =$cflags\n";
 print "EX_LIBS=$lflags\n";
 print "BN_MULW=$bn_obj\n";
 print "DES_ENC=$des_obj\n";
 print "BF_ENC =$bf_obj\n";

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

 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)=(1,0,0,0,0) if /SIXTY_FOUR_BIT_LONG/;
 	($b64l,$b64,$b32,$b16,$b8)=(0,1,0,0,0) if /SIXTY_FOUR_BIT/;
 	($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/;
 	}

 (($in=$bn) =~ s/\.([^.]+)/.$postfix/);
 $n=&file_new($bn);
 open(IN,"<".$in) || die "unable to read $bn:$!\n";
 open(OUT,">$n") || die "unable to read $n:$!\n";
 while (<IN>)
 	{
 	if	(/^#((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"; }
 	else
 		{ print OUT $_; }
 	}
 close(IN);
 close(OUT);
 &Rename($bn,&file_old($bn));
 &Rename($n,$bn);

 (($in=$des) =~ s/\.([^.]+)/.$postfix/);
 $n=&file_new($des);
 open(IN,"<".$in) || die "unable to read $des:$!\n";
 open(OUT,">$n") || die "unable to read $n:$!\n";
 while (<IN>)
 	{
 	if	(/^\#define\s+DES_LONG\s+.*/)
 		{ printf OUT "#define DES_LONG unsigned %s\n",
 			($des_int)?'int':'long'; }
 	else
 		{ print OUT $_; }
 	}
 close(IN);
 close(OUT);
 &Rename($des,&file_old($des));
 &Rename($n,$des);

 (($in=$des_locl) =~ s/\.([^.]+)/.$postfix/);
 $n=&file_new($des_locl);
 open(IN,"<".$in) || die "unable to read $des_locl:$!\n";
 open(OUT,">$n") || die "unable to read $n:$!\n";
 while (<IN>)
 	{
 	if	(/^\#(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'; }
 	else
 		{ print OUT $_; }
 	}
 close(IN);
 close(OUT);
 &Rename($des_locl,&file_old($des_locl));
 &Rename($n,$des_locl);

 (($in=$rc4) =~ s/\.([^.]+)/.$postfix/);
 $n=&file_new($rc4);
 open(IN,"<".$in) || die "unable to read $rc4:$!\n";
 open(OUT,">$n") || die "unable to read $n:$!\n";
 while (<IN>)
 	{
 	if	(/^#define\s+RC4_INT\s/)
 		{ printf OUT "#define RC4_INT unsigned %s\n",$type[$rc4_int]; }
 	else
 		{ print OUT $_; }
 	}
 close(IN);
 close(OUT);
 &Rename($rc4,&file_old($rc4));
 &Rename($n,$rc4);

 (($in=$rc4_enc) =~ s/\.([^.]+)/.$postfix/);
 $n=&file_new($rc4_enc);
 open(IN,"<".$in) || die "unable to read $rc4_enc:$!\n";
 open(OUT,">$n") || die "unable to read $n:$!\n";
 while (<IN>)
 	{
 	if	(/^#((define)|(undef))\s+RC4_INDEX/)
 		{ printf OUT "#%s RC4_INDEX\n",($rc4_idx)?"define":"undef"; }
 	else
 		{ print OUT $_; }
 	}
 close(IN);
 close(OUT);
 &Rename($rc4_enc,&file_old($rc4_enc));
 &Rename($n,$rc4_enc);

 (($in=$md2) =~ s/\.([^.]+)/.$postfix/);
 $n=&file_new($md2);
 open(IN,"<".$in) || die "unable to read $bn:$!\n";
 open(OUT,">$n") || die "unable to read $n:$!\n";
 while (<IN>)
 	{
 	if	(/^#define\s+MD2_INT\s/)
 		{ printf OUT "#define MD2_INT unsigned %s\n",$type[$md2_int]; }
 	else
 		{ print OUT $_; }
 	}
 close(IN);
 close(OUT);
 &Rename($md2,&file_old($md2));
 &Rename($n,$md2);

 (($in=$idea) =~ s/\.([^.]+)/.$postfix/);
 $n=&file_new($idea);
 open(IN,"<".$in) || die "unable to read $idea:$!\n";
 open(OUT,">$n") || die "unable to read $n:$!\n";
 while (<IN>)
 	{
 	if	(/^#define\s+IDEA_INT\s/)
 		{printf OUT "#define IDEA_INT unsigned %s\n",$type[$idea_int];}
 	else
 		{ print OUT $_; }
 	}
 close(IN);
 close(OUT);
 &Rename($idea,&file_old($idea));
 &Rename($n,$idea);

 (($in=$rc2) =~ s/\.([^.]+)/.$postfix/);
 $n=&file_new($rc2);
 open(IN,"<".$in) || die "unable to read $rc2:$!\n";
 open(OUT,">$n") || die "unable to read $n:$!\n";
 while (<IN>)
 	{
 	if	(/^#define\s+RC2_INT\s/)
 		{printf OUT "#define RC2_INT unsigned %s\n",$type[$rc2_int];}
 	else
 		{ print OUT $_; }
 	}
 close(IN);
 close(OUT);
 &Rename($rc2,&file_old($rc2));
 &Rename($n,$rc2);

 (($in=$bf) =~ s/\.([^.]+)/.$postfix/);
 $n=&file_new($bf);
 open(IN,"<".$in) || die "unable to read $bf:$!\n";
 open(OUT,">$n") || die "unable to read $n:$!\n";
 while (<IN>)
 	{
 	if (/^#(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 $_; }
 	}
 close(IN);
 close(OUT);
 &Rename($bf,&file_old($bf));
 &Rename($n,$bf);

 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;
 exit(0);

 sub bad_target
 	{
 	print STDERR "Usage: Configure [-Dxxx] [-Lxxx] [-lxxx] os/compiler\n";
 	print STDERR "pick os/compiler from:";
 	$j=0;
 	foreach $i (sort keys %table)
 		{
 		next if /^b-/;
 		print STDERR "\n" if ($j++ % 4) == 0;
 		printf(STDERR "%-18s ",$i);
 		}
 	print STDERR "\n";
 	}

 sub Rename
 	{
 	local($from,$to)=@_;

 	unlink($to);
 	rename($from,$to) || die "unable to rename $from to $to:$!\n";
 	}

 sub file_new { local($a)=@_; $a =~ s/(\.[^.]+$|$)/.new/; $a; }
 sub file_old { local($a)=@_; $a =~ s/(\.[^.]+$|$)/.old/; $a; }
	#!/usr/local/bin/perl
	#
	# see PROBLEMS for instructions on what sort of things to do when
	# tracking a bug --tjh
	#
	# extra options
	# -DRSAref build to use RSAref
	# -DNO_IDEA build with no IDEA algorithm
	# -DNO_RC4 build with no RC4 algorithm
	# -DNO_RC2 build with no RC2 algorithm
	# -DNO_BF build with no Blowfish algorithm
	# -DNO_DES build with no DES/3DES algorithm
	# -DNO_MD2 build with no MD2 algorithm
	#
	# 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/md/md2.h
	# MD2_LONG use 'long' instead of 'int' for MD2_INT in crypto/md/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_enc.c. This turns on
	# array lookups instead of pointer use.
	# BF_PTR use 'pointer arithmatic' for Blowfish (unsafe on Alpha).
	# BF_PTR2 use a pentium/intel specific version.

	$x86_gcc_des="DES_PTR DES_RISC1 DES_UNROLL";

	# MD2_CHAR slags pentium pros
	$x86_gcc_opts="RC4_INDEX MD2_INT BF_PTR2";

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

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

	# -DB_ENDIAN slows things down on a sparc

	#config-string CC : CFLAGS : LDFLAGS : special header file mods:bn_asm \
	# des_asm:bf_asm
	%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::",

	# A few of my development configs
	"purify", "purify gcc:-g -DPURIFY -Wall:-lsocket -lnsl::::",
	"debug", "gcc:-DREF_CHECK -DCRYPTO_MDEBUG -g -Wformat -Wshadow -Wmissing-prototypes -Wmissing-declarations -Werror:::::",
	"dist", "cc:-O -DNOPROTO::::",

	# Basic configs that should work on any box
	"gcc", "gcc:-O3::BN_LLONG:::",
	"cc", "cc:-O -DNOPROTO -DNOCONST:::::",

	# My solaris setups
	"solaris-x86-gcc","gcc:-O3 -fomit-frame-pointer -m486 -Wall -DL_ENDIAN:\
	-lsocket -lnsl:BN_LLONG $x86_gcc_des $x86_gcc_opts:asm/x86-sol.o:asm/dx86-sol.o asm/cx86-sol.o:asm/bx86-sol.o",
	"solaris-sparc-gcc","gcc:-O3 -fomit-frame-pointer -mv8 -Wall:\
	-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:\
	-lsocket -lnsl:BN_LLONG RC4_CHAR DES_PTR DES_UNROLL BF_PTR:asm/sparc.o::",
	# 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:-lsocket -lnsl:\
	BN_LLONG RC4_CHAR DES_PTR DES_RISC1 DES_UNROLL BF_PTR:asm/sparc.o::",
	"solaris-usparc-sc4","cc:-xtarget=ultra -xarch=v8plus -Xa -xO5 -DB_ENDIAN:\
	-lsocket -lnsl:\
	BN_LLONG RC4_CHAR DES_PTR DES_RISC1 DES_UNROLL BF_PTR:asm/sparc.o::",

	# Sunos configs, assuming sparc for the gcc one.
	"sunos-cc", "cc:-O4 -DNOPROTO -DNOCONST::DES_UNROLL:::",
	"sunos-gcc","gcc:-O3 -mv8::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].
	#"irix-gcc","gcc:-O2 -mips2::BN_LLONG RC4_INDEX RC4_CHAR:::",
	"irix-gcc","gcc:-O2 -DTERMIOS -DB_ENDIAN::BN_LLONG MD2_CHAR RC4_INDEX RC4_CHAR DES_UNROLL DES_RISC2 DES_PTR BF_PTR:::",
	"irix-cc", "cc:-O2 -DTERMIOS -DB_ENDIAN::DES_PTR DES_RISC2 DES_UNROLL BF_PTR:asm/r3000.o::",
	"debug-irix-cc", "cc:-w2 -g -DCRYPTO_MDEBUG -DTERMIOS -DB_ENDIAN:::asm/r3000.o::",

	# HPUX config. I've been building on HPUX 9, so the options may be
	# different on version 10. The pa-risc2.o assember file is 2 times
	# faster than the old asm/pa-risc.o version but it may not run on old
	# PA-RISC CPUs. If you have problems, swap back to the old one.
	# Both were generated by gcc, so use the C version with the PA-RISC specific
	# options turned on if you are using gcc.
	"hpux-cc", "cc:-DB_ENDIAN -D_HPUX_SOURCE -Aa -Ae +ESlit +O4 -Wl,-a,archive::DES_PTR DES_UNROLL DES_RISC1:asm/pa-risc2.o::",
	"hpux-kr-cc", "cc:-DB_ENDIAN -DNOCONST -DNOPROTO -D_HPUX_SOURCE::DES_PTR DES_UNROLL:asm/pa-risc2.o::",
	"hpux-gcc", "gcc:-DB_ENDIAN -O3::BN_LLONG DES_PTR DES_UNROLL DES_RISC1:::",

	# Dec Alpha, OSF/1 - the alpha400-cc is the flags for a 21164A with
	# the new compiler
	"alpha-gcc","gcc:-O3::SIXTY_FOUR_BIT_LONGS DES_INT DES_PTR DES_RISC2:asm/alpha.o::",
	"alpha-cc", "cc:-O2::SIXTY_FOUR_BIT_LONGS DES_INT DES_PTR DES_RISC2:asm/alpha.o::",
	"alpha400-cc", "cc:-arch host -tune host -fast -std -O4 -inline speed::SIXTY_FOUR_BIT_LONG:asm/alpha.o::",

	# The intel boxes :-), It would be worth seeing if bsdi-gcc can use the
	# x86-lnx.o file file since it is hand tweaked assembler.
	"linux-elf", "gcc:-DL_ENDIAN -DTERMIO -O3 -fomit-frame-pointer -m486 -Wall -Wuninitialized::BN_LLONG $x86_gcc_des $x86_gcc_opts:asm/x86-lnx.o:asm/dx86-elf.o asm/cx86-elf.o:asm/bx86-elf.o",
	"debug-linux-elf","gcc:-DREF_CHECK -DCRYPTO_MDEBUG -DL_ENDIAN -DTERMIO -g -m486 -Wall:-lefence:BN_LLONG $x86_gcc_des $x86_gcc_opts:asm/x86-lnx.o:asm/dx86-elf.o asm/cx86-elf.o:asm/bx86-elf.o",
	"linux-aout", "gcc:-DL_ENDIAN -DTERMIO -O3 -fomit-frame-pointer -m486 -Wall::BN_LLONG $x86_gcc_des $x86_gcc_opts:asm/x86-lnxa.o:asm/dx86-out.o asm/cx86-out.o:asm/bx86-out.o",
	"NetBSD-sparc", "gcc:-DTERMIOS -O3 -fomit-frame-pointer -mv8 -Wall::BN_LLONG MD2_CHAR RC4_INDEX DES_UNROLL:::",
	"NetBSD-x86", "gcc:-DTERMIOS -D_ANSI_SOURCE -O3 -fomit-frame-pointer -m486 -Wall::BN_LLONG $x86_gcc_des $x86_gcc_opts:asm/x86-lnxa.o:asm/dx86-out.o asm/cx86-out.o:asm/bx86-out.o",
	"FreeBSD", "gcc:-DTERMIOS -D_ANSI_SOURCE -fomit-frame-pointer -O3 -m486 -Wall::BN_LLONG $x86_gcc_des $x86_gcc_opts:asm/x86-lnxa.o:asm/dx86-out.o asm/cx86-out.o:asm/bx86-out.o",
	#"bsdi-gcc", "shlicc2:-O3 -ffast-math-m486::RSA_LLONG $x86_gcc_des $x86_gcc_opts:::",
	#"bsdi-gcc", "gcc:-O3 -ffast-math -DPERL5 -m486::RSA_LLONG $x86_gc_des $x86_gcc_opts:asm/x86-bsdi.o:asm/dx86bsdi.o asm/cx86bsdi.o:asm/bx86bsdi.o",
	"bsdi-gcc", "gcc:-O3 -ffast-math -DPERL5 -m486::RSA_LLONG $x86_gc_des $x86_gcc_opts:::",
	"nextstep", "cc:-O3 -Wall::BN_LLONG $x86_gcc_des $x86_gcc_opts:::",

	# UnixWare 2.0
	"unixware-2.0","cc:-O:-lsocket -lnsl:$x86_gcc_des $x86_gcc_opts:::",
	"unixware-2.0-pentium","cc:-O -Kpentium -Kthread:-lsocket -lnsl:MD2_CHAR RC4_INDEX $x86_des_des::",

	# IBM's AIX.
	"aix-cc", "cc:-O -DAIX -DB_ENDIAN::BN_LLONG RC4_CHAR:::",
	"aix-gcc", "gcc:-O2 -DAIX -DB_ENDIAN::BN_LLONG RC4_CHAR:::",

	# DGUX, 88100.
	"dgux-R3-gcc", "gcc:-O3 -fomit-frame-pointer::RC4_INDEX DES_UNROLL:::",
	"dgux-R4-gcc", "gcc:-O3 -fomit-frame-pointer:-lnsl -lsocket:RC4_INDEX:RC4_INDEX DES_UNROLL:::",
	"dgux-R4-x86-gcc", "gcc:-O3 -fomit-frame-pointer -DL_ENDIAN:-lnsl -lsocket:BN_LLONG $x86_gcc_des $x86_gcc_opts:asm/x86-lnx.o:asm/dx86-elf.o asm/cx86-elf.o:asm/bx86-elf.o",

	# SCO 5
	"sco5-cc", "cc:-O:-lsocket:$x86_gcc_des $x86_gcc_opts:::", # des options?

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

	# Windows NT, Microsoft Visual C++ 4.0

	# hmm... bug in perl under NT, I need to concatinate :-(
	"VC-NT","cl:::BN_LLONG RC4_INDEX ".$x86_gcc_opts.":::",
	"VC-WIN32","cl:::BN_LLONG RC4_INDEX ".$x86_gcc_opts.":::",
	"VC-WIN16","cl:::MD2_CHAR DES_UNROLL DES_PTR RC4_INDEX THIRTY_TWO_BIT:::",
	"VC-W31-16","cl:::BN_LLONG MD2_CHAR DES_UNROLL DES_PTR RC4_INDEX SIXTEEN_BIT:::",
	"VC-W31-32","cl:::MD2_CHAR DES_UNROLL DES_PTR RC4_INDEX THIRTY_TWO_BIT:::",
	"VC-MSDOS","cl:::BN_LLONG MD2_CHAR DES_UNROLL DES_PTR RC4_INDEX SIXTEEN_BIT:::",

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

	$postfix="org";
	$Makefile="Makefile.ssl";
	$des_locl="crypto/des/des_locl.h";
	$des ="crypto/des/des.h";
	$bn ="crypto/bn/bn.h";
	$md2 ="crypto/md/md2.h";
	$rc4 ="crypto/rc4/rc4.h";
	$rc4_enc="crypto/rc4/rc4_enc.c";
	$idea ="crypto/idea/idea.h";
	$rc2 ="crypto/rc2/rc2.h";
	$bf ="crypto/bf/bf_locl.h";
	$bn_mulw="bn_mulw.o";
	$des_enc="des_enc.o fcrypt_b.o";
	$bf_enc ="bf_enc.o";

	if ($#ARGV < 0)
	{
	&bad_target;
	exit(1);
	}

	$flags="";
	foreach (@ARGV)
	{
	if ($_ =~ /^-/)
	{
	if ($_ =~ /^-[lL](.*)$/)
	{
	$libs.=$_." ";
	}
	elsif ($_ =~ /^-D(.*)$/)
	{
	$flags.=$_." ";
	}
	else
	{
	die "unknown options, only -Dxxx, -Lxxx -lxxx supported\n";
	}
	}
	else
	{
	die "target already defined - $target\n" if ($target ne "");
	$target=$_;
	if (!defined($table{$target}))
	{
	&bad_target;
	exit(1);
	}
	}
	}

	if (!defined($table{$target}))
	{
	&bad_target;
	exit(1);
	}

	($cc,$cflags,$lflags,$bn_ops,$bn_obj,$des_obj,$bf_obj)=
	split(/\s:\s/,$table{$target});
	$cflags="$flags$cflags" if ($flags ne "");
	$lflags="$libs$lflags"if ($libs ne "");

	$bn_obj=$bn_mulw unless ($bn_obj =~ /\.o$/);
	$des_obj=$des_enc unless ($des_obj =~ /\.o$/);
	$bf_obj=$bf_enc unless ($bf_obj =~ /\.o$/);

	$n=&file_new($Makefile);
	open(IN,"<".$Makefile) \|\| die "unable to read $Makefile:$!\n";
	open(OUT,">".$n) \|\| die "unable to read $n:$!\n";
	while (<IN>)
	{
	chop;
	s/^CC=.*$/CC= $cc/;
	s/^CFLAG=.*$/CFLAG= $cflags/;
	s/^EX_LIBS=.*$/EX_LIBS= $lflags/;
	s/^BN_MULW=.*$/BN_MULW= $bn_obj/;
	s/^DES_ENC=.*$/DES_ENC= $des_obj/;
	s/^BF_ENC=.*$/BF_ENC= $bf_obj/;
	print OUT $_."\n";
	}
	close(IN);
	close(OUT);
	&Rename($Makefile,&file_old($Makefile));
	&Rename($n,$Makefile);
	print "CC =$cc\n";
	print "CFLAG =$cflags\n";
	print "EX_LIBS=$lflags\n";
	print "BN_MULW=$bn_obj\n";
	print "DES_ENC=$des_obj\n";
	print "BF_ENC =$bf_obj\n";

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

	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)=(1,0,0,0,0) if /SIXTY_FOUR_BIT_LONG/;
	($b64l,$b64,$b32,$b16,$b8)=(0,1,0,0,0) if /SIXTY_FOUR_BIT/;
	($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/;
	}

	(($in=$bn) =~ s/\.([^.]+)/.$postfix/);
	$n=&file_new($bn);
	open(IN,"<".$in) \|\| die "unable to read $bn:$!\n";
	open(OUT,">$n") \|\| die "unable to read $n:$!\n";
	while (<IN>)
	{
	if (/^#((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"; }
	else
	{ print OUT $_; }
	}
	close(IN);
	close(OUT);
	&Rename($bn,&file_old($bn));
	&Rename($n,$bn);

	(($in=$des) =~ s/\.([^.]+)/.$postfix/);
	$n=&file_new($des);
	open(IN,"<".$in) \|\| die "unable to read $des:$!\n";
	open(OUT,">$n") \|\| die "unable to read $n:$!\n";
	while (<IN>)
	{
	if (/^\#define\s+DES_LONG\s+.*/)
	{ printf OUT "#define DES_LONG unsigned %s\n",
	($des_int)?'int':'long'; }
	else
	{ print OUT $_; }
	}
	close(IN);
	close(OUT);
	&Rename($des,&file_old($des));
	&Rename($n,$des);

	(($in=$des_locl) =~ s/\.([^.]+)/.$postfix/);
	$n=&file_new($des_locl);
	open(IN,"<".$in) \|\| die "unable to read $des_locl:$!\n";
	open(OUT,">$n") \|\| die "unable to read $n:$!\n";
	while (<IN>)
	{
	if (/^\#(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'; }
	else
	{ print OUT $_; }
	}
	close(IN);
	close(OUT);
	&Rename($des_locl,&file_old($des_locl));
	&Rename($n,$des_locl);

	(($in=$rc4) =~ s/\.([^.]+)/.$postfix/);
	$n=&file_new($rc4);
	open(IN,"<".$in) \|\| die "unable to read $rc4:$!\n";
	open(OUT,">$n") \|\| die "unable to read $n:$!\n";
	while (<IN>)
	{
	if (/^#define\s+RC4_INT\s/)
	{ printf OUT "#define RC4_INT unsigned %s\n",$type[$rc4_int]; }
	else
	{ print OUT $_; }
	}
	close(IN);
	close(OUT);
	&Rename($rc4,&file_old($rc4));
	&Rename($n,$rc4);

	(($in=$rc4_enc) =~ s/\.([^.]+)/.$postfix/);
	$n=&file_new($rc4_enc);
	open(IN,"<".$in) \|\| die "unable to read $rc4_enc:$!\n";
	open(OUT,">$n") \|\| die "unable to read $n:$!\n";
	while (<IN>)
	{
	if (/^#((define)\|(undef))\s+RC4_INDEX/)
	{ printf OUT "#%s RC4_INDEX\n",($rc4_idx)?"define":"undef"; }
	else
	{ print OUT $_; }
	}
	close(IN);
	close(OUT);
	&Rename($rc4_enc,&file_old($rc4_enc));
	&Rename($n,$rc4_enc);

	(($in=$md2) =~ s/\.([^.]+)/.$postfix/);
	$n=&file_new($md2);
	open(IN,"<".$in) \|\| die "unable to read $bn:$!\n";
	open(OUT,">$n") \|\| die "unable to read $n:$!\n";
	while (<IN>)
	{
	if (/^#define\s+MD2_INT\s/)
	{ printf OUT "#define MD2_INT unsigned %s\n",$type[$md2_int]; }
	else
	{ print OUT $_; }
	}
	close(IN);
	close(OUT);
	&Rename($md2,&file_old($md2));
	&Rename($n,$md2);

	(($in=$idea) =~ s/\.([^.]+)/.$postfix/);
	$n=&file_new($idea);
	open(IN,"<".$in) \|\| die "unable to read $idea:$!\n";
	open(OUT,">$n") \|\| die "unable to read $n:$!\n";
	while (<IN>)
	{
	if (/^#define\s+IDEA_INT\s/)
	{printf OUT "#define IDEA_INT unsigned %s\n",$type[$idea_int];}
	else
	{ print OUT $_; }
	}
	close(IN);
	close(OUT);
	&Rename($idea,&file_old($idea));
	&Rename($n,$idea);

	(($in=$rc2) =~ s/\.([^.]+)/.$postfix/);
	$n=&file_new($rc2);
	open(IN,"<".$in) \|\| die "unable to read $rc2:$!\n";
	open(OUT,">$n") \|\| die "unable to read $n:$!\n";
	while (<IN>)
	{
	if (/^#define\s+RC2_INT\s/)
	{printf OUT "#define RC2_INT unsigned %s\n",$type[$rc2_int];}
	else
	{ print OUT $_; }
	}
	close(IN);
	close(OUT);
	&Rename($rc2,&file_old($rc2));
	&Rename($n,$rc2);

	(($in=$bf) =~ s/\.([^.]+)/.$postfix/);
	$n=&file_new($bf);
	open(IN,"<".$in) \|\| die "unable to read $bf:$!\n";
	open(OUT,">$n") \|\| die "unable to read $n:$!\n";
	while (<IN>)
	{
	if (/^#(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 $_; }
	}
	close(IN);
	close(OUT);
	&Rename($bf,&file_old($bf));
	&Rename($n,$bf);

	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;
	exit(0);

	sub bad_target
	{
	print STDERR "Usage: Configure [-Dxxx] [-Lxxx] [-lxxx] os/compiler\n";
	print STDERR "pick os/compiler from:";
	$j=0;
	foreach $i (sort keys %table)
	{
	next if /^b-/;
	print STDERR "\n" if ($j++ % 4) == 0;
	printf(STDERR "%-18s ",$i);
	}
	print STDERR "\n";
	}

	sub Rename
	{
	local($from,$to)=@_;

	unlink($to);
	rename($from,$to) \|\| die "unable to rename $from to $to:$!\n";
	}

	sub file_new { local($a)=@_; $a =~ s/(\.[^.]+$\|$)/.new/; $a; }
	sub file_old { local($a)=@_; $a =~ s/(\.[^.]+$\|$)/.old/; $a; }