#!/bin/sh
######################################################################## 
# derived from ccbb
# c++bb myfile.c       - just get the appropriate C flags and C compiler
#
# Created Feb 5, 1997 - Martin Lohner
#
######################################################################## 

UNAME=`uname`
SCRIPT=`basename $0`
C_SRC=
CCOPTS=
CPPOPTS=
DEBUG=0
DLINE=0
NOOP=0
SAVE=0
LINK=   #blank means false
OUTFILE=   #blank means false

#####
##### describe command syntax if no arguments are given
#####
if [ -z "$1" ] 
then
      echo "$SCRIPT [opts] file"
      echo 'opts:'
      echo '	-cpp <cpp_opts>   supplementary cpp options'
      echo '    -outfile <file>   set explicit output file name'
      echo '	-debug            compile for debugging'
      echo '	-nodebug          (default) compile with optimization (nodebugging)'
      echo '	-dline            compile debug lines'
      echo '	-noop             print but do not execute commands'
      echo '	-save             save intermediate file with #includes done'
      echo '	-link             link arguments instead of compiling'
      echo '	                  (must be the last ccbb argument on the line)'
      echo ''
      echo "$SCRIPT - compile a C file, chosing options appropriate"
      echo "          for the current host."
      echo ''
      echo "The follwoing (UNIX) system types are supported:"
      echo "AIX, HP-UX, IRIX, SunOS 4, Solaris, ULTRIX, OSF1"
      exit
fi

#####
##### read command line arguments
#####
while test $# -gt 0
do
  case $1 in
      -cpp) CPPOPTS="$CPPOPTS $2"; shift;;
    -debug) DEBUG=1;;
  -nodebug) DEBUG=0;;
    -dline) DLINE=1;;
  -outfile) OUTFILE="$2"; shift;;
     -noop) NOOP=1;;
     -save) SAVE=1;;
     -link) LINK=true; shift; break;;
        -*) echo "$SCRIPT:  Unknown option: $1" 1>&2; exit 1;;
         *) C_SRC=$1;;
  esac
  shift
done 

if [ $LINK ]
then
  C_SRC=$*
else
  # check command line arguments
  if [ ! "$C_SRC" ]; then 
    echo "$SCRIPT:  C_SRC not specified." 1>&2
    exit 1
  fi
  
  # check that source file exists
  if [ ! -r $C_SRC ]; then
    echo "$SCRIPT:  $C_SRC not found."
    exit 1
  fi
  if [ $DEBUG = 1 ] ; then
    c_out=`echo $C_SRC | sed -e 's/\.cc/\_g\.o/'`
  else
    c_out=`echo $C_SRC | sed -e 's/\.cc/\.o/'`
  fi
fi

if [ $OUTFILE ]
then
  c_out=$OUTFILE
fi

#####
##### machine specific stuff
#####
case $UNAME in

  OSF1)
    CC=g++
    CCOPTS=""
    [ $LINK      ] || CCOPTS="$CCOPTS -c"
    [ $DLINE = 1 ] && CCOPTS="$CCOPTS -d_lines"
    if [ $DEBUG = 1 ] ; then
      CCOPTS="$CCOPTS -g "
    else
      CCOPTS="$CCOPTS -O "
    fi
    ;;

  Linux)
    CC=g++
    CCOPTS=""
    [ $LINK      ] || CCOPTS="$CCOPTS -c"
    if [ $DEBUG = 1 ] ; then
      CCOPTS="$CCOPTS -g "
    else
      CCOPTS="$CCOPTS -O "
    fi
    ;;

  HP-UX)
    CC=g++
    CCOPTS="-Aa -D_HPUX_SOURCE"
    [ $LINK      ] || CCOPTS="$CCOPTS -c"
    [ $DLINE = 1 ] && CCOPTS="$CCOPTS -D"
    [ $DEBUG = 1 ] && CCOPTS="$CCOPTS -g" || CCOPTS="$CCOPTS -O"
    ;;

  IRIX)
    CC=g++
    RNAME=`uname -r | grep 6`
    if [ $RNAME ] 
    then
      CCOPTS=""
    else
      CCOPTS="-mips2"
    fi
    [ $LINK      ] || CCOPTS="$CCOPTS -c"
    [ $DLINE = 1 ] && CCOPTS="$CCOPTS -d_lines"
    [ $DEBUG = 1 ] && CCOPTS="$CCOPTS -g " || CCOPTS="$CCOPTS -O"
    ;;

  IRIX64)
    CC=g++
    CCOPTS=""
    [ $LINK      ] || CCOPTS="$CCOPTS -c"
    [ $DLINE = 1 ] && CCOPTS="$CCOPTS -d_lines"
    [ $DEBUG = 1 ] && CCOPTS="$CCOPTS -g " || CCOPTS="$CCOPTS -O"
    ;;

  SunOS)
    CC=g++
    CCOPTS=""
    [ $LINK      ] || CCOPTS="$CCOPTS -c"
    [ $DLINE = 1 ] && CCOPTS="$CCOPTS -xdl"
    [ $DEBUG = 1 ] && CCOPTS="$CCOPTS -g" || CCOPTS="$CCOPTS -O"
    ;;

  ULTRIX)
    CC=g++
    CCOPTS=""
    [ $LINK      ] || CCOPTS="$CCOPTS -c"
    [ $DLINE = 1 ] && CCOPTS="$CCOPTS -d_lines"
    [ $DEBUG = 1 ] && CCOPTS="$CCOPTS -g -C -check_bounds" || CCOPTS="$CCOPTS 
-O"
    ;;

  AIX)
    CC=g++
    CCOPTS="-DAIX"
    [ $LINK      ] || CCOPTS="$CCOPTS -c"
    [ $DLINE = 1 ] && CCOPTS="$CCOPTS -d_lines"
    [ $DEBUG = 1 ] && CCOPTS="$CCOPTS -g" || CCOPTS="$CCOPTS -O"
    ;;
esac

[ $NOOP = 1 ] && ECHO=echo

#####
##### CC step
#####
##echo "$CC $CCOPTS $CPPOPTS $C_SRC -o $c_out"
$ECHO $CC $CCOPTS $CPPOPTS $C_SRC -o $c_out