#!/bin/sh

# (C) 2010 by the Board of Trustees of the Leland Stanford, Jr., University
#                          All Rights Reserved
# Produced by Andrew Hanushevsky for Stanford University under contract
#            DE-AC03-76-SFO0515 with the Deprtment of Energy

# Establish things we will look for
#
AFSFS=/usr/afsws/bin/fs
UNAME=/bin/uname
UNAMF=/usr/bin/uname
VERBOSE=0

##############################################################################
#                           s u b r o u t i n e s                            #
##############################################################################

Debug () {
    if test $VERBOSE -eq 1; then
       /bin/echo $1
    fi
    }
  
FileThere () {
    Debug "Checking file $2 ..."
    if test -${1} $2; then
       return 0
    fi
    return 1
    }

##############################################################################
#                          m a i n   p r o g r a m                           #
##############################################################################

# Get the uname characteristics
#
  if FileThere x $UNAME; then
     OSNAME=`$UNAME`
     RLNAME=`$UNAME -r`
     MTNAME=`$UNAME -m`
elif FileThere x $UNAMF; then
     OSNAME=`$UNAMF`
     RLNAME=`$UNAMF -r`
     MTNAME=`$UNAMF -m`
  fi


# Compute the basic release number
#
    RELNUM=`echo $RLNAME | /usr/bin/awk -F\. '{print $1$2}'`


    if [ x$DEST_SYSNAME != x ] ; then
        SYSNAME=$DEST_SYSNAME
  elif FileThere x $AFSFS; then
       # If the AFS fs command exists, then this becomes the system name
       SYSNAME=`$AFSFS sysname | /usr/bin/awk -F\' '{print $2}'`
       if [ $SYSNAME = i386_rhel40 ]; then
          if [ "x$MTNAME" = "xx86_64" ]; then
             SYSNAME=amd64_linux26
             else
             SYSNAME=i386_linux26
          fi
       fi
  elif [ $OSNAME = SunOS ]; then
       if [ $MTNAME = i86pc ]; then
          SYSNAME=sunx86
       else
          case $RLNAME in 5.9) RFX=59 ;; 5.10) RFX=510 ;; 5.11) RFX=511 ;; esac
          SYSNAME=sun4x_$RFX
       fi
  elif [ $OSNAME = Linux ]; then
       case $RLNAME in 2.4*) RFX=24 ;; 2.6*) RFX=26 ;; 2.7*) RFX=27 ;; 3.1*) RFX=31 ;; esac
       PFX=i386
       case $MTNAME in i*) PFX=i386 ;; x86_64) PFX=amd64 ;; esac
       SYSNAME=${PFX}_linux$RFX
  elif [ $OSNAME = FreeBSD ]; then
       case $RLNAME in 4.2*) RFX=42 ;; 4.3*) RFX=43 ;; 4.4*) RFX=44 ;; esac
       SYSNAME=FreeBSD$RFX
  elif [ $OSNAME = Darwin ]; then
       case $RLNAME in 8*) RFX=80 ;; 9*) RFX=90 ;; 10*) RFX=100 ;; esac
       case $MTNAME in ppc*) PFX=ppc ;; i386*) PFX=X86 ;; esac
       SYSNAME=${PFX}_darwin_$RFX
  elif [ $OSNAME = AIX ]; then
       case $RLNAME in 2) RFX=42 ;; 3) RFX=43 ;; 4) RFX=44 ;; esac
       SYSNAME=rs_aix$RFX
  else
       SYSNAME=misc
    fi

  if FileThere d ../obj/$SYSNAME; then :
  else
      /bin/mkdir -p ../obj/$SYSNAME
  fi

  if FileThere d ../bin/$SYSNAME; then :
  else
      /bin/mkdir -p ../bin/$SYSNAME
  fi

  if [ x$1 = x-r ]; then
     echo $RELNUM
  else
     echo $SYSNAME
  fi