#!/bin/sh
#
# OpenSSL config: determine the operating system and run ./Configure
#
# "config -h" for usage information.
#
#          this is a merge of minarch and GuessOS from the Apache Group.
#          Originally written by Tim Hudson <tjh@cryptsoft.com>.

# Original Apache Group comments on GuessOS

# Simple OS/Platform guesser. Similar to config.guess but
# much, much smaller. Since it was developed for use with
# Apache, it follows under Apache's regular licensing
# with one specific addition: Any changes or additions
# to this script should be Emailed to the Apache
# group (apache@apache.org) in general and to
# Jim Jagielski (jim@jaguNET.com) in specific.
#
# Be as similar to the output of config.guess/config.sub
# as possible.

PREFIX=""
SUFFIX=""
TEST="false"

# pick up any command line args to config
for i
do
case "$i" in 
-d*) PREFIX="debug-";;
-t*) TEST="true";;
-h*) TEST="true"; cat <<EOF
Usage: config [options]
 -d	Add a debug- prefix to machine choice.
 -t	Test mode, do not run the Configure perl script.
 -h	This help.

Any other text will be passed to the Configure perl script.
See INSTALL for instructions.

EOF
;;
*) options=$options" $i" ;;
esac
done

# First get uname entries that we use below

MACHINE=`(uname -m) 2>/dev/null` || MACHINE="unknown"
RELEASE=`(uname -r) 2>/dev/null` || RELEASE="unknown"
SYSTEM=`(uname -s) 2>/dev/null`  || SYSTEM="unknown"
VERSION=`(uname -v) 2>/dev/null` || VERSION="unknown"


# Now test for ISC and SCO, since it is has a braindamaged uname.
#
# We need to work around FreeBSD 1.1.5.1 
(
XREL=`uname -X 2>/dev/null | grep "^Release" | awk '{print $3}'`
if [ "x$XREL" != "x" ]; then
    if [ -f /etc/kconfig ]; then
	case "$XREL" in
	    4.0|4.1)
		    echo "${MACHINE}-whatever-isc4"; exit 0
		;;
	esac
    else
	case "$XREL" in
	    3.2v4.2)
		echo "whatever-whatever-sco3"; exit 0
		;;
	    3.2v5.0*)
		echo "whatever-whatever-sco5"; exit 0
		;;
	    4.2MP)
		case "x${VERSION}" in
		    x2.0*) echo "whatever-whatever-unixware20"; exit 0 ;;
		    x2.1*) echo "whatever-whatever-unixware21"; exit 0 ;;
		    x2*)   echo "whatever-whatever-unixware2";  exit 0 ;;
		esac
		;;
	    4.2)
		echo "whatever-whatever-unixware1"; exit 0
		;;
	    5)
		case "x${VERSION}" in
		    # We hardcode i586 in place of ${MACHINE} for the
		    # following reason. The catch is that even though Pentium
		    # is minimum requirement for platforms in question,
		    # ${MACHINE} gets always assigned to i386. Now, problem
		    # with i386 is that it makes ./config pass 386 to
		    # ./Configure, which in turn makes make generate
		    # inefficient SHA-1 (for this moment) code.
		    x7*)  echo "i586-sco-unixware7";           exit 0 ;;
		    x8*)  echo "i586-unkn-OpenUNIX${VERSION}"; exit 0 ;;
		esac
		;;
	esac
    fi
fi
# Now we simply scan though... In most cases, the SYSTEM info is enough
#
case "${SYSTEM}:${RELEASE}:${VERSION}:${MACHINE}" in
    MPE/iX:*)
	MACHINE=`echo "$MACHINE" | sed -e 's/-/_/g'`
	echo "parisc-hp-MPE/iX"; exit 0
	;;
    A/UX:*)
	echo "m68k-apple-aux3"; exit 0
	;;

    AIX:[3456789]:4:*)
	echo "${MACHINE}-ibm-aix43"; exit 0
	;;

    AIX:*:[56789]:*)
	echo "${MACHINE}-ibm-aix43"; exit 0
	;;

    AIX:*)
	echo "${MACHINE}-ibm-aix"; exit 0
	;;

    dgux:*)
	echo "${MACHINE}-dg-dgux"; exit 0
	;;

    HI-UX:*)
	echo "${MACHINE}-hi-hiux"; exit 0
	;;

    HP-UX:*)
	HPUXVER=`echo ${RELEASE}|sed -e 's/[^.]*.[0B]*//'`
	case "$HPUXVER" in
	    1[0-9].*)	# HPUX 10 and 11 targets are unified
		echo "${MACHINE}-hp-hpux1x"; exit 0
		;;
	    *)
		echo "${MACHINE}-hp-hpux"; exit 0
		;;
	esac
	;;

    IRIX:5.*)
	echo "mips2-sgi-irix"; exit 0
	;;

    IRIX:6.*)
	echo "mips3-sgi-irix"; exit 0
	;;

    IRIX64:*)
	echo "mips4-sgi-irix64"; exit 0
	;;

    Linux:[2-9].*)
	echo "${MACHINE}-whatever-linux2"; exit 0
	;;

    Linux:1.*)
	echo "${MACHINE}-whatever-linux1"; exit 0
	;;

    GNU*)
	echo "hurd-x86"; exit 0;
	;;

    LynxOS:*)
	echo "${MACHINE}-lynx-lynxos"; exit 0
	;;

    BSD/OS:4.*)  # BSD/OS always says 386
	echo "i486-whatever-bsdi4"; exit 0
	;;

    BSD/386:*:*:*486*|BSD/OS:*:*:*:*486*)
        case `/sbin/sysctl -n hw.model` in
	    Pentium*)
                echo "i586-whatever-bsdi"; exit 0
                ;;
            *)
                echo "i386-whatever-bsdi"; exit 0
                ;;
            esac;
	;;

    BSD/386:*|BSD/OS:*)
	echo "${MACHINE}-whatever-bsdi"; exit 0
	;;

    FreeBSD:*:*:*386*)
        VERS=`echo ${RELEASE} | sed -e 's/[-(].*//'`
        MACH=`sysctl -n hw.model`
        ARCH='whatever'
        case ${MACH} in
           *386*       ) MACH="i386"     ;;
           *486*       ) MACH="i486"     ;;
           Pentium\ II*) MACH="i686"     ;;
           Pentium*    ) MACH="i586"     ;;
           *           ) MACH="$MACHINE" ;;
        esac
        case ${MACH} in
           i[0-9]86 ) ARCH="pc" ;;
        esac
        echo "${MACH}-${ARCH}-freebsd${VERS}"; exit 0
        ;;

    FreeBSD:*)
	echo "${MACHINE}-whatever-freebsd"; exit 0
	;;

    NetBSD:*:*:*386*)
        echo "`(/usr/sbin/sysctl -n hw.model || /sbin/sysctl -n hw.model) | sed 's,.*\(.\)86-class.*,i\186,'`-whatever-netbsd"; exit 0
	;;

    NetBSD:*)
	echo "${MACHINE}-whatever-netbsd"; exit 0
	;;

    OpenBSD:*)
	echo "${MACHINE}-whatever-openbsd"; exit 0
	;;

    OpenUNIX:*)
	echo "${MACHINE}-unknown-OpenUNIX${VERSION}"; exit 0
	;;

    OSF1:*:*:*alpha*)
	OSFMAJOR=`echo ${RELEASE}| sed -e 's/^V\([0-9]*\)\..*$/\1/'`
	case "$OSFMAJOR" in
	    4|5)
		echo "${MACHINE}-dec-tru64"; exit 0
		;;
	    1|2|3)
		echo "${MACHINE}-dec-osf"; exit 0
		;;
	    *)
		echo "${MACHINE}-dec-osf"; exit 0
		;;
	esac
	;;

    QNX:*)
	case "$RELEASE" in
	    4*)
		echo "${MACHINE}-whatever-qnx4"
		;;
	    6*)
		echo "${MACHINE}-whatever-qnx6"
		;;
	    *)
		echo "${MACHINE}-whatever-qnx"
		;;
	esac
	exit 0
	;;

    Paragon*:*:*:*)
	echo "i860-intel-osf1"; exit 0
	;;

    Rhapsody:*)
	echo "ppc-apple-rhapsody"; exit 0
	;;

    Darwin:*)
	case "$MACHINE" in
	    Power*)
		echo "ppc-apple-darwin${VERSION}"
		;;
	    *)
		echo "i386-apple-darwin${VERSION}"
		;;
	esac
	exit 0
	;;

    SunOS:5.*)
	echo "${MACHINE}-whatever-solaris2"; exit 0
	;;

    SunOS:*)
	echo "${MACHINE}-sun-sunos4"; exit 0
	;;

    UNIX_System_V:4.*:*)
	echo "${MACHINE}-whatever-sysv4"; exit 0
	;;

    *:4*:R4*:m88k)
	echo "${MACHINE}-whatever-sysv4"; exit 0
	;;

    DYNIX/ptx:4*:*)
	echo "${MACHINE}-whatever-sysv4"; exit 0
	;;

    *:4.0:3.0:3[34]?? | *:4.0:3.0:3[34]??,*)
	echo "i486-ncr-sysv4"; exit 0
	;;

    ULTRIX:*)
	echo "${MACHINE}-unknown-ultrix"; exit 0
	;;

    SINIX*|ReliantUNIX*)
	echo "${MACHINE}-siemens-sysv4"; exit 0
	;;

    POSIX-BC*)
	echo "${MACHINE}-siemens-sysv4"; exit 0   # Here, $MACHINE == "BS2000"
	;;

    machten:*)
       echo "${MACHINE}-tenon-${SYSTEM}"; exit 0;
       ;;

    library:*)
	echo "${MACHINE}-ncr-sysv4"; exit 0
	;;

    ConvexOS:*:11.0:*)
	echo "${MACHINE}-v11-${SYSTEM}"; exit 0;
	;;

    NEWS-OS:4.*)
	echo "mips-sony-newsos4"; exit 0;
	;;

    CYGWIN*)
	case "$RELEASE" in
	    [bB]*|1.0|1.[12].*)
		echo "${MACHINE}-whatever-cygwin_pre1.3"
		;;
	    *)
		echo "${MACHINE}-whatever-cygwin"
		;;
	esac
	exit 0
	;;

    *"CRAY T3E")
       echo "t3e-cray-unicosmk"; exit 0;
       ;;

    *CRAY*)
       echo "j90-cray-unicos"; exit 0;
       ;;

    NONSTOP_KERNEL*)
       echo "nsr-tandem-nsk"; exit 0;
       ;;
esac

#
# Ugg. These are all we can determine by what we know about
# the output of uname. Be more creative:
#

# Do the Apollo stuff first. Here, we just simply assume
# that the existance of the /usr/apollo directory is proof
# enough
if [ -d /usr/apollo ]; then
    echo "whatever-apollo-whatever"
    exit 0
fi

# Now NeXT
ISNEXT=`hostinfo 2>/dev/null`
case "$ISNEXT" in
    *'NeXT Mach 3.3'*)
	echo "whatever-next-nextstep3.3"; exit 0
	;;
    *NeXT*)
	echo "whatever-next-nextstep"; exit 0
	;;
esac

# At this point we gone through all the one's
# we know of: Punt

echo "${MACHINE}-whatever-${SYSTEM}" 
exit 0
) 2>/dev/null | (

# ---------------------------------------------------------------------------
# this is where the translation occurs into SSLeay terms
# ---------------------------------------------------------------------------

# figure out if gcc is available and if so we use it otherwise
# we fallback to whatever cc does on the system
GCCVER=`(gcc -dumpversion) 2>/dev/null`
if [ "$GCCVER" != "" ]; then
  CC=gcc
  # then strip off whatever prefix egcs prepends the number with...
  # Hopefully, this will work for any future prefixes as well.
  GCCVER=`echo $GCCVER | sed 's/^[a-zA-Z]*\-//'`
  # Since gcc 3.1 gcc --version behaviour has changed.  gcc -dumpversion
  # does give us what we want though, so we use that.  We just just the
  # major and minor version numbers.
  # peak single digit before and after first dot, e.g. 2.95.1 gives 29
  GCCVER=`echo $GCCVER | sed 's/\([0-9]\)\.\([0-9]\).*/\1\2/'`
else
  CC=cc
fi
GCCVER=${GCCVER:-0}
if [ "$SYSTEM" = "HP-UX" ];then
  # By default gcc is a ILP32 compiler (with long long == 64).
  GCC_BITS="32"
  if [ $GCCVER -ge 30 ]; then
    # PA64 support only came in with gcc 3.0.x.
    # We check if the preprocessor symbol __LP64__ is defined...
    if echo "__LP64__" | gcc -v -E -x c - 2>/dev/null | grep "^__LP64__" 2>&1 > /dev/null; then
      : # __LP64__ has slipped through, it therefore is not defined
    else
      GCC_BITS="64"
    fi
  fi
fi
if [ "$SYSTEM" = "SunOS" ]; then
  if [ $GCCVER -ge 30 ]; then
    # 64-bit ABI isn't officially supported in gcc 3.0, but it appears
    # to be working, at the very least 'make test' passes...
    if gcc -v -E -x c /dev/null 2>&1 | grep __arch64__ > /dev/null; then
      GCC_ARCH="-m64"
    else
      GCC_ARCH="-m32"
    fi
  fi
  # check for WorkShop C, expected output is "cc: blah-blah C x.x"
  CCVER=`(cc -V 2>&1) 2>/dev/null | \
  	egrep -e '^cc: .* C [0-9]\.[0-9]' | \
	sed 's/.* C \([0-9]\)\.\([0-9]\).*/\1\2/'`
  CCVER=${CCVER:-0}
  if [ $CCVER -gt 40 ]; then
    CC=cc	# overrides gcc!!!
    if [ $CCVER -eq 50 ]; then
      echo "WARNING! Detected WorkShop C 5.0. Do make sure you have"
      echo "         patch #107357-01 or later applied."
      sleep 5
    fi
  elif [ "$CC" = "cc" -a $CCVER -gt 0 ]; then
    CC=sc3
  fi
fi

if [ "${SYSTEM}-${MACHINE}" = "Linux-alpha" ]; then
  # check for Compaq C, expected output is "blah-blah C Vx.x"
  CCCVER=`(ccc -V 2>&1) 2>/dev/null | \
	egrep -e '.* C V[0-9]\.[0-9]' | \
	sed 's/.* C V\([0-9]\)\.\([0-9]\).*/\1\2/'`
  CCCVER=${CCCVER:-0}
  if [ $CCCVER -gt 60 ]; then
    CC=ccc	# overrides gcc!!! well, ccc outperforms inoticeably
		# only on hash routines and des, otherwise gcc (2.95)
		# keeps along rather tight...
  fi
fi

if [ "${SYSTEM}" = "AIX" ]; then	# favor vendor cc over gcc
    (cc) 2>&1 | grep -iv "not found" > /dev/null && CC=cc
fi

CCVER=${CCVER:-0}

# read the output of the embedded GuessOS 
read GUESSOS

echo Operating system: $GUESSOS

# now map the output into SSLeay terms ... really should hack into the
# script above so we end up with values in vars but that would take
# more time that I want to waste at the moment
case "$GUESSOS" in
  mips2-sgi-irix)
	CPU=`(hinv -t cpu) 2>/dev/null | head -1 | sed 's/^CPU:[^R]*R\([0-9]*\).*/\1/'`
	CPU=${CPU:-0}
	if [ $CPU -ge 4000 ]; then
		options="$options -mips2"
	fi
	OUT="irix-$CC"
	;;
  mips3-sgi-irix)
	CPU=`(hinv -t cpu) 2>/dev/null | head -1 | sed 's/^CPU:[^R]*R\([0-9]*\).*/\1/'`
	CPU=${CPU:-0}
	if [ $CPU -ge 5000 ]; then
		options="$options -mips4"
	else
		options="$options -mips3"
	fi
	OUT="irix-mips3-$CC"
	;;
  mips4-sgi-irix64)
	echo "WARNING! If you wish to build 64-bit library, then you have to"
	echo "         invoke './Configure irix64-mips4-$CC' *manually*."
	if [ "$TEST" = "false" ]; then
	  echo "         You have about 5 seconds to press Ctrl-C to abort."
	  (stty -icanon min 0 time 50; read waste) < /dev/tty
	fi
        CPU=`(hinv -t cpu) 2>/dev/null | head -1 | sed 's/^CPU:[^R]*R\([0-9]*\).*/\1/'`
        CPU=${CPU:-0}
        if [ $CPU -ge 5000 ]; then
                options="$options -mips4"
        else
                options="$options -mips3"
        fi
	OUT="irix-mips3-$CC"
	;;
  alpha-*-linux2)
        ISA=`awk '/cpu model/{print$4}' /proc/cpuinfo`
	case ${ISA:-generic} in
	*[67])	OUT="linux-alpha+bwx-$CC" ;;
	*)	OUT="linux-alpha-$CC" ;;
	esac
	if [ "$CC" = "gcc" ]; then
	    case ${ISA:-generic} in
	    EV5|EV45)		options="$options -mcpu=ev5";;
	    EV56|PCA56)		options="$options -mcpu=ev56";;
	    EV6|EV67|PCA57)	options="$options -mcpu=ev6";;
	    esac
	fi
	;;
  mips-*-linux?)
          cat >dummy.c <<EOF
#include <stdio.h>  /* for printf() prototype */
        int main (argc, argv) int argc; char *argv[]; {
#ifdef __MIPSEB__
  printf ("linux-%s\n", argv[1]);
#endif
#ifdef __MIPSEL__
  printf ("linux-%sel\n", argv[1]);
#endif
  return 0;
}
EOF
	${CC} -o dummy dummy.c && OUT=`./dummy ${MACHINE}`
	rm dummy dummy.c
	;;
  ppc64-*-linux2)
	#Use the standard target for PPC architecture until we create a
	#special one for the 64bit architecture.
	OUT="linux-ppc" ;;
  ppc-*-linux2) OUT="linux-ppc" ;;
  m68k-*-linux*) OUT="linux-m68k" ;;
  ia64-*-linux?) OUT="linux-ia64" ;;
  ppc-apple-rhapsody) OUT="rhapsody-ppc-cc" ;;
  ppc-apple-darwin*) OUT="darwin-ppc-cc" ;;
  i386-apple-darwin*) OUT="darwin-i386-cc" ;;
  sparc64-*-linux2)
	echo "WARNING! If you *know* that your GNU C supports 64-bit/V9 ABI"
	echo "         and wish to build 64-bit library, then you have to"
	echo "         invoke './Configure linux64-sparcv9' *manually*."
	if [ "$TEST" = "false" ]; then
	  echo "          You have about 5 seconds to press Ctrl-C to abort."
	  (stty -icanon min 0 time 50; read waste) < /dev/tty
	fi
	OUT="linux-sparcv9" ;;
  sparc-*-linux2)
	KARCH=`awk '/^type/{print$3}' /proc/cpuinfo`
	case ${KARCH:-sun4} in
	sun4u*)	OUT="linux-sparcv9" ;;
	sun4m)	OUT="linux-sparcv8" ;;
	sun4d)	OUT="linux-sparcv8" ;;
	*)	OUT="linux-sparcv7" ;;
	esac ;;
  parisc-*-linux2)
        CPUARCH=`awk '/cpu family/{print substr($5,1,3)}' /proc/cpuinfo`
	CPUSCHEDULE=`awk '/^cpu.[ 	]: PA/{print substr($3,3)}' /proc/cpuinfo`

	# ??TODO ??  Model transformations
	# 0. CPU Architecture for the 1.1 processor has letter suffixes. We strip that off
	#    assuming no further arch. identification will ever be used by GCC.
	# 1. I'm most concerned about whether is a 7300LC is closer to a 7100 versus a 7100LC.
	# 2. The variant 64-bit processors cause concern should GCC support explicit schedulers
	#    for these chips in the future.
	#         PA7300LC -> 7100LC (1.1)
	#         PA8200   -> 8000   (2.0)
	#         PA8500   -> 8000   (2.0)
	#         PA8600   -> 8000   (2.0)

	CPUSCHEDULE=`echo $CPUSCHEDULE|sed -e 's/7300LC/7100LC/' -e 's/8?00/8000/'`
	# Finish Model transformations

	options="$options -mschedule=$CPUSCHEDULE -march=$CPUARCH"
	OUT="linux-parisc" ;;
  arm*-*-linux2) OUT="linux-elf-arm" ;;
  s390-*-linux2) OUT="linux-s390" ;;
  s390x-*-linux?) OUT="linux-s390x" ;;
  x86_64-*-linux?) OUT="linux-x86_64" ;;
  *-*-linux2) OUT="linux-elf"
	if [ "$GCCVER" -gt 28 ]; then
          if grep '^model.*Pentium' /proc/cpuinfo >/dev/null ; then
            OUT="linux-pentium"
          fi
          if grep '^model.*Pentium Pro' /proc/cpuinfo >/dev/null ; then
            OUT="linux-ppro"
          fi
          if grep '^model.*K6' /proc/cpuinfo >/dev/null ; then
            OUT="linux-k6"
          fi
        fi ;;
  *-*-linux1) OUT="linux-aout" ;;
  sun4u*-*-solaris2)
	OUT="solaris-sparcv9-$CC"
	ISA64=`(isalist) 2>/dev/null | grep sparcv9`
	if [ "$ISA64" != "" ]; then
	    if [ "$CC" = "cc" -a $CCVER -ge 50 ]; then
		echo "WARNING! If you wish to build 64-bit library, then you have to"
		echo "         invoke './Configure solaris64-sparcv9-cc' *manually*."
		if [ "$TEST" = "false" ]; then
		  echo "         You have about 5 seconds to press Ctrl-C to abort."
		  (stty -icanon min 0 time 50; read waste) < /dev/tty
		fi
	    elif [ "$CC" = "gcc" -a "$GCC_ARCH" = "-m64" ]; then
		# $GCC_ARCH denotes default ABI chosen by compiler driver
		# (first one found on the $PATH). I assume that user
		# expects certain consistency with the rest of his builds
		# and therefore switch over to 64-bit. <appro>
		OUT="solaris64-sparcv9-gcc"
		echo "WARNING! If you wish to build 32-bit library, then you have to"
		echo "         invoke './Configure solaris-sparcv9-gcc' *manually*."
		if [ "$TEST" = "false" ]; then
		  echo "         You have about 5 seconds to press Ctrl-C to abort."
		  (stty -icanon min 0 time 50; read waste) < /dev/tty
		fi
	    elif [ "$GCC_ARCH" = "-m32" ]; then
		echo "NOTICE! If you *know* that your GNU C supports 64-bit/V9 ABI"
		echo "        and wish to build 64-bit library, then you have to"
		echo "        invoke './Configure solaris64-sparcv9-gcc' *manually*."
		if [ "$TEST" = "false" ]; then
		  echo "         You have about 5 seconds to press Ctrl-C to abort."
		  (stty -icanon min 0 time 50; read waste) < /dev/tty
		fi
	    fi
	fi
	;;
  sun4m-*-solaris2)	OUT="solaris-sparcv8-$CC" ;;
  sun4d-*-solaris2)	OUT="solaris-sparcv8-$CC" ;;
  sun4*-*-solaris2)	OUT="solaris-sparcv7-$CC" ;;
  *86*-*-solaris2) OUT="solaris-x86-$CC" ;;
  *-*-sunos4) OUT="sunos-$CC" ;;
  alpha*-*-freebsd*) OUT="FreeBSD-alpha" ;;
  sparc64-*-freebsd*) OUT="FreeBSD-sparc64" ;;
  ia64-*-freebsd*) OUT="FreeBSD-ia64" ;;
  *-freebsd[3-9]*) OUT="FreeBSD-elf" ;;
  *-freebsd[1-2]*) OUT="FreeBSD" ;;
  *86*-*-netbsd) OUT="NetBSD-x86" ;;
  sun3*-*-netbsd) OUT="NetBSD-m68" ;;
  *-*-netbsd) OUT="NetBSD-sparc" ;;
  alpha*-*-openbsd) OUT="OpenBSD-alpha" ;;
  *86*-*-openbsd) OUT="OpenBSD-i386" ;;
  m68k*-*-openbsd) OUT="OpenBSD-m68k" ;;
  m88k*-*-openbsd) OUT="OpenBSD-m88k" ;;
  mips*-*-openbsd) OUT="OpenBSD-mips" ;;
  pmax*-*-openbsd) OUT="OpenBSD-mips" ;;
  powerpc*-*-openbsd) OUT="OpenBSD-powerpc" ;;
  sparc64*-*-openbsd) OUT="OpenBSD-sparc64" ;;
  sparc*-*-openbsd) OUT="OpenBSD-sparc" ;;
  vax*-*-openbsd) OUT="OpenBSD-vax" ;;
  hppa*-*-openbsd) OUT="OpenBSD-hppa" ;;
  *-*-openbsd) OUT="OpenBSD" ;;
  *86*-*-bsdi4) OUT="bsdi-elf-gcc" ;;
  *-*-osf) OUT="alphaold-cc" ;;
  *-*-tru64) OUT="alpha-cc" ;;
  *-*-OpenUNIX*)
	if [ "$CC" = "gcc" ]; then
	  OUT="OpenUNIX-8-gcc" 
	else    
	  OUT="OpenUNIX-8" 
	fi
	;;
  *-*-unixware7) OUT="unixware-7" ;;
  *-*-UnixWare7) OUT="unixware-7" ;;
  *-*-Unixware7) OUT="unixware-7" ;;
  *-*-unixware20*) OUT="unixware-2.0" ;;
  *-*-unixware21*) OUT="unixware-2.1" ;;
  *-*-UnixWare20*) OUT="unixware-2.0" ;;
  *-*-UnixWare21*) OUT="unixware-2.1" ;;
  *-*-Unixware20*) OUT="unixware-2.0" ;;
  *-*-Unixware21*) OUT="unixware-2.1" ;;
  BS2000-siemens-sysv4) OUT="BS2000-OSD" ;;
  RM*-siemens-sysv4) OUT="ReliantUNIX" ;;
  *-siemens-sysv4) OUT="SINIX" ;;
  *-hpux1*)
	if [ $CC = "gcc" -a $GCC_BITS = "64" ]; then
	    OUT="hpux64-parisc2-gcc"
	fi
	KERNEL_BITS=`(getconf KERNEL_BITS) 2>/dev/null`
	KERNEL_BITS=${KERNEL_BITS:-32}
	CPU_VERSION=`(getconf CPU_VERSION) 2>/dev/null`
	CPU_VERSION=${CPU_VERSION:-0}
	# See <sys/unistd.h> for further info on CPU_VERSION.
	if   [ $CPU_VERSION -ge 768 ]; then	# IA-64 CPU
	     echo "WARNING! 64-bit ABI is the default configured ABI on HP-UXi."
	     echo "         If you wish to build 32-bit library, the you have to"
	     echo "         invoke './Configure hpux-ia64-cc' *manually*."
	     if [ "$TEST" = "false" ]; then
		echo "         You have about 5 seconds to press Ctrl-C to abort."
		(stty -icanon min 0 time 50; read waste) < /dev/tty
	     fi
	     OUT="hpux64-ia64-cc"
	elif [ $CPU_VERSION -ge 532 ]; then	# PA-RISC 2.x CPU
	     OUT=${OUT:-"hpux-parisc2-${CC}"}
	     if [ $KERNEL_BITS -eq 64 -a "$CC" = "cc" ]; then
		echo "WARNING! If you wish to build 64-bit library then you have to"
		echo "         invoke './Configure hpux64-parisc2-cc' *manually*."
		if [ "$TEST" = "false" ]; then
		  echo "         You have about 5 seconds to press Ctrl-C to abort."
		  (stty -icanon min 0 time 50; read waste) < /dev/tty
		fi
	     fi
	elif [ $CPU_VERSION -ge 528 ]; then	# PA-RISC 1.1+ CPU
	     OUT="hpux-parisc-${CC}
	elif [ $CPU_VERSION -ge 523 ]; then	# PA-RISC 1.0 CPU
	     OUT="hpux-parisc-${CC}
	else					# Motorola(?) CPU
	     OUT="hpux-$CC"
	fi
	options="$options -D_REENTRANT" ;;
  *-hpux)	OUT="hpux-parisc-$CC" ;;
  # these are all covered by the catchall below
  # *-aix) OUT="aix-$CC" ;;
  # *-dgux) OUT="dgux" ;;
  mips-sony-newsos4) OUT="newsos4-gcc" ;;
  *-*-cygwin_pre1.3) OUT="Cygwin-pre1.3" ;;
  *-*-cygwin) OUT="Cygwin" ;;
  t3e-cray-unicosmk) OUT="cray-t3e" ;;
  j90-cray-unicos) OUT="cray-j90" ;;
  nsr-tandem-nsk) OUT="tandem-c89" ;;
  *) OUT=`echo $GUESSOS | awk -F- '{print $3}'`;;
esac

# NB: This atalla support has been superceded by the ENGINE support
# That contains its own header and definitions anyway. Support can
# be enabled or disabled on any supported platform without external
# headers, eg. by adding the "hw-atalla" switch to ./config or
# perl Configure
#
# See whether we can compile Atalla support
#if [ -f /usr/include/atasi.h ]
#then
#  options="$options -DATALLA"
#fi

# gcc < 2.8 does not support -mcpu=ultrasparc
if [ "$OUT" = solaris-sparcv9-gcc -a $GCCVER -lt 28 ]
then
  echo "WARNING! Do consider upgrading to gcc-2.8 or later."
  sleep 5
  OUT=solaris-sparcv9-gcc27
fi
if [ "$OUT" = "linux-sparcv9" -a $GCCVER -lt 28 ]
then
  echo "WARNING! Falling down to 'linux-sparcv8'."
  echo "         Upgrade to gcc-2.8 or later."
  sleep 5
  OUT=linux-sparcv8
fi

case "$GUESSOS" in
  i386-*) options="$options 386" ;;
esac

for i in bf cast des dh dsa ec hmac idea md2 md5 mdc2 rc2 rc4 rc5 aes ripemd rsa sha
do
  if [ ! -d crypto/$i ]
  then
    options="$options no-$i"
  fi
done

# Discover Kerberos 5 (since it's still a prototype, we don't
# do any guesses yet, that's why this section is commented away.
#if [ -d /usr/kerberos ]; then
#    krb5_dir=/usr/kerberos
#    if [ \( -f $krb5_dir/lib/libgssapi_krb5.a -o -f $krb5_dir/lib/libgssapi_krb5.so* \)\
#	-a \( -f $krb5_dir/lib/libkrb5.a -o -f $krb5_dir/lib/libkrb5.so* \)\
#	-a \( -f $krb5_dir/lib/libcom_err.a -o -f $krb5_dir/lib/libcom_err.so* \)\
#	-a \( -f $krb5_dir/lib/libk5crypto.a -o -f $krb5_dir/lib/libk5crypto.so* \)\
#	-a \( -f $krb5_dir/include/krb5.h \) ]; then
#	options="$options --with-krb5-flavor=MIT"
#    fi
#elif [ -d /usr/heimdal ]; then
#    krb5_dir=/usr/heimdal
#    if [ \( -f $krb5_dir/lib/libgssapi.a -o -f $krb5_dir/lib/libgssapi.so* \)\
#	-a \( -f $krb5_dir/lib/libkrb5.a -o -f $krb5_dir/lib/libkrb5.so* \)\
#	-a \( -f $krb5_dir/lib/libcom_err.a -o -f $krb5_dir/lib/libcom_err.so* \)\
#	-a \( -f $krb5_dir/include/krb5.h \) ]; then
#	options="$options --with-krb5-flavor=Heimdal"
#    fi
#fi

if [ -z "$OUT" ]; then
  OUT="$CC"
fi

if [ ".$PERL" = . ] ; then
	for i in . `echo $PATH | sed 's/:/ /g'`; do
		if [ -f "$i/perl5" ] ; then
			PERL="$i/perl5"
			break;
		fi;
	done
fi

if [ ".$PERL" = . ] ; then
	for i in . `echo $PATH | sed 's/:/ /g'`; do
		if [ -f "$i/perl" ] ; then
			if "$i/perl" -e 'exit($]<5.0)'; then
				PERL="$i/perl"
				break;
			fi;
		fi;
	done
fi

if [ ".$PERL" = . ] ; then
	echo "You need Perl 5."
	exit 1
fi

# run Configure to check to see if we need to specify the 
# compiler for the platform ... in which case we add it on
# the end ... otherwise we leave it off

$PERL ./Configure LIST | grep "$OUT-$CC" > /dev/null
if [ $? = "0" ]; then
  OUT="$OUT-$CC"
fi

OUT="$PREFIX$OUT"

$PERL ./Configure LIST | grep "$OUT" > /dev/null
if [ $? = "0" ]; then
  echo Configuring for $OUT

  if [ "$TEST" = "true" ]; then
    echo $PERL ./Configure $OUT $options
  else
    $PERL ./Configure $OUT $options
  fi
else
  echo "This system ($OUT) is not supported. See file INSTALL for details."
fi
)