File: iconf_pgplot

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#!/bin/sh
#
#  This file will test how to build pgplot.  Essentially, 
#  this looks for where libpgplot is, where the X libs are,
#  and whether to use '-lpng -lz' for the PNG device.
#

#  first, the PGPLOT directory and PGPLOT library are found 
#  look for library file

# where to look for pgplot directory: last one found will be used!
pgdirs="/usr/lib /usr/local/lib /usr/share/pgplot /usr/local/pgplot /Applications/Ifeffit/pgplot $1"
xdirs="/usr/X11/lib /usr/lib/X11 /usr/lib/X11R5 /usr/X11R5/lib /usr/lib/X11R6 /usr/X11R6/lib"
xd=""

# set default, in case we find nothing:
cwd=`pwd`
def="$cwd/src/pgstub/libnopgplot.a"


basedir="NONE"
for d in $pgdirs; do
    if [ -d $d ] ; then
       if [ -f $d/grfont.dat ]      ; then basedir=$d ; fi
       if [ -f $d/libpgplot_iff.a ] ; then libdir=$d  ; fi
       if [ -f $d/libpgplot.a  ]    ; then libdir=$d  ; fi
    fi 
done

# if we can't find the basedir, give up
if test "$basedir" = NONE  ; then echo $def ; exit ; fi

# now we look for the files makefile and grexec.f
# in the pgplot directory, and parse them to figure out how to
# link to PGPLOT.  The makefile is much more reliable, but we
# can probably guess from grexec.f

out=""

mfile=$basedir/makefile
ffile=$basedir/grexec.f

if [ -f $mfile ] ; then
  out="$out -L$libdir"
  l1=`grep "^PGPLOT_LIB=" $mfile| sed 's/PGPLOT_LIB=-L\`pwd\`//' | sed 's/PGPLOT_LIB=//'`
  l2=`grep "^LIBS="  $mfile  | sed "s/LIBS=//"`
  lline="$l1 $l2"
  for i in $lline ; do 
    echo $i | grep -q '^-L'  ; stat=$?
    if [ $stat == 0 ] ; then # this is a '-L' word, check that directory exists
      if [ -d `echo $i | sed "s/-L//"` ] ; then  out="$out $i" ;  fi
    else 
      out="$out $i"
    fi
  done
else
  if [ -f $ffile ] ; then
    out="-L$libdir -lpgplot"
    grep " CALL PNDRIV" $ffile >/dev/null 2>&1;
    if [  $? ] ; then out="$out -lpng -lz" ;   fi
    grep " CALL XWDRIV" $ffile >/dev/null 2>&1;
    if [  $? ] ; then  
       for d in $xdirs; do
          if [ -d $d ] ; then
             if [ -f $d/libX11.so ] ; then xd=$d ; fi
             if [ -f $d/libX11.a  ] ; then xd=$d ; fi
          fi 
       done
       out="$out -L$xd -lX11"
    fi
  else
    out=$def
  fi
fi

echo $out