platform

#!/bin/sh

USAGE1='platform [-a[rch] <architecture>] [-os <os>] [-gnu] [-cc <ccompiler>] [-c++ <c++compiler>] [-ada <adacompiler>] [-s[ite] <site>]'

# This program will not work right without the commands uname and expr.
if [ -f /usr/bin/uname ] ; then
    UNAME=/usr/bin/uname
else
if [ -f /bin/uname ] ; then
    UNAME=/bin/uname
else
    echo "/usr/bin/uname command not found"
fi
fi
if [ -f /bin/expr ] ; then
    EXPR=/bin/expr
else
    echo "/bin/expr command not found"
fi

tmpfile=./..platform

# Start with last ditch defaults
default_site=DISTRIBUTION
default_os=solaris1
default_arch=sun4
default_usegnu=1
default_CCOMP=gcc
default_CPLUSCOMP=g++
default_ACOMP=sunada1.1

osname=`$UNAME -s`
osrel=`$UNAME -r`
arch=`$UNAME -m`

# do various fixups

# Detect various versions of sun4 architecture
if [ `$EXPR $arch : 'sun4*'` -eq 4 ] ; then
  arch=sun4
fi
# rename sparc architecture to sun4 also
if [ $arch = sparc ] ; then
  arch=sun4
fi
# rename HP 9000/? to be pa-risc
if [ $osname = "HP-UX" -a `$EXPR $arch : '9000/*'` -eq 5 ] ; then
  arch=pa-risc
fi
if [ `$EXPR $osrel : '4.1*'` -eq 3 ] ; then
  osrel=4.1
fi
if [ $osname = SunOS -a $osrel = 4.1 ] ; then
  os=solaris1
fi
if [ $osname = SunOS -a $osrel =  5.4 ] ; then
  os=solaris2
fi
if [ $osname = OSF1 ] ; then
  os=osf1
fi
if [ $osname = IRIX ] ; then
  os=irix
fi
if [ $osname = HP-UX ] ; then
  os=hpux
fi

if [ $SITEID ] ; then
  site=SITEID
else
  if [ $ARCADIASITE ] ; then site=$ARCADIASITE; fi
fi

while [ $# -gt 0 ]
do
       case $1 in
  	-s | -site) shift; site=$1 ;;
  	-a | -arch) shift ; arch=$1 ;;
  	-o | -os) shift ; os=$1 ;;
  	-cc | -CC) shift ; CCOMP=$1 ;;
  	-c++ | -C++) shift ; CPLUSCOMP=$1 ;;
  	-ada | -ADA) shift ; ACOMP=$1 ;;
  	-gnu) usegnu=1 ;;
  	-nognu) usegnu=0 ;;
  	\?) echo $USAGE1; exit 2 ;;
      esac
      shift
done

if [ ! "$os" -a "$arch" ] ; then
	if [ $arch = "dec-mips" ] ; then os="ultrix" ; fi
	if [ $arch = "decmips" ] ; then os="ultrix" ; fi
	if [ $arch = "sun3" ] ; then os="solaris1" ; fi
	if [ $arch = "sun4" ] ; then
            if [ -d /opt ] ; then
              os="solaris2"
	    else
		os="solaris1"
            fi
        fi
	if [ $arch = "sparc" ] ; then os="solaris1" ; fi
	if [ $arch = "alpha" ] ; then os="osf1" ; fi
	if [ $arch = "pa-risc" ] ; then os="hpux" ; fi
	if [ $arch = "sgi-mips" ] ; then os="irix" ; fi
	if [ $arch = "sgi-1" ] ; then os="irix" ; fi
fi

# Begin the defaulting process
if [ ! "$usegnu" ] ; then
    usegnu=1
    if [ "$CCOMP" ] ; then
        if [ $CCOMP != "gcc"  ] ; then usegnu=0 ; fi
    fi
    if [ "$CPLUSCOMP" ] ; then
        if [ $CPLUSCOMP != "g++"  ] ; then usegnu=0 ; fi
    fi
fi

if [ "$usegnu" = 1 ] ; then
	if [ ! "$CCOMP" ] ; then CCOMP=gcc ; fi
	if [ ! "$CPLUSCOMP" ] ; then CPLUSCOMP=g++ ; fi
fi

# complete the defaulting proces
if [ ! "$site" ] ; then site=$default_site ; fi
if [ ! "$os" ] ; then os=$default_os ; fi
if [ ! "$arch" ] ; then arch=$default_arch ; fi
if [ ! "$CCOMP" ] ; then CCOMP=$default_CCOMP ; fi
if [ ! "$CPLUSCOMP" ] ; then CPLUSCOMP=$default_CPLUSCOMP ; fi
if [ ! "$ACOMP" ] ; then ACOMP=$default_ACOMP ; fi

# split trailing version number from ada vendor name
ACVERS=`echo $ACOMP | sed -e 's/[a-zA-Z_]*//'`
ACVENDOR=`echo $ACOMP | sed -e "s/$ACVERS//"`

if [ -d Imake.config ] ; then
  rm -f Imake.config.bak
  mv Imake.config Imake.config.bak
fi

# calculate the current working directory
thisdir=`pwd`

rm -f $tmpfile
# It is possible that the escape characters in the following
# (currently the @) may need to change if it occurs
# in the values substituted.
echo "/!TARGETSITE!/s@!TARGETSITE!@$site@g" > $tmpfile
echo "/!TARGETARCH!/s@!TARGETARCH!@$arch@g" >> $tmpfile
echo "/!TARGETOS!/s@!TARGETOS!@$os@g" >> $tmpfile
echo "/!TARGETADA!/s@!TARGETADA!@$ACOMP@g" >> $tmpfile
echo "/!TARGETADAVERSION!/s@!TARGETADAVERSION!@$ACVERS@g" >> $tmpfile
echo "/!TARGETADAVENDOR!/s@!TARGETADAVENDOR!@$ACVENDOR@g" >> $tmpfile
echo "/!TARGETCC!/s@!TARGETCC!@$CCOMP@g" >> $tmpfile
echo "/!TARGETCPLUS!/s@!TARGETCPLUS!@$CPLUSCOMP@g" >> $tmpfile
echo "/!USEGNU!/s@!USEGNU!@$usegnu@g" >> $tmpfile
echo "/!CWD!/s@!CWD!@$thisdir@g" >> $tmpfile
sed -f $tmpfile < Config.Imake >Imake.config
rm -f $tmpfile

echo arch= $arch, os= $os, cc= $CCOMP, c++= $CPLUSCOMP, ada= $ACOMP, gnu= $usegnu "(site= $site)"

exit