diff --git a/install-sh b/install-sh
index 014252c..e9de238 100755
--- a/install-sh
+++ b/install-sh
@@ -1,14 +1,27 @@
 #!/bin/sh
-
 #
 # install - install a program, script, or datafile
-# This comes from X11R5; it is not part of GNU.
+# This comes from X11R5 (mit/util/scripts/install.sh).
 #
-# $XConsortium: install.sh,v 1.2 89/12/18 14:47:22 jim Exp $
+# Copyright 1991 by the Massachusetts Institute of Technology
+#
+# Permission to use, copy, modify, distribute, and sell this software and its
+# documentation for any purpose is hereby granted without fee, provided that
+# the above copyright notice appear in all copies and that both that
+# copyright notice and this permission notice appear in supporting
+# documentation, and that the name of M.I.T. not be used in advertising or
+# publicity pertaining to distribution of the software without specific,
+# written prior permission.  M.I.T. makes no representations about the
+# suitability of this software for any purpose.  It is provided "as is"
+# without express or implied warranty.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# `make' implicit rules from creating a file called install from it
+# when there is no Makefile.
 #
 # This script is compatible with the BSD install script, but was written
-# from scratch.
-#
+# from scratch.  It can only install one file at a time, a restriction
+# shared with many OS's install programs.
 
 
 # set DOITPROG to echo to test this script
@@ -26,9 +39,12 @@
 chgrpprog="${CHGRPPROG-chgrp}"
 stripprog="${STRIPPROG-strip}"
 rmprog="${RMPROG-rm}"
+mkdirprog="${MKDIRPROG-mkdir}"
 
+transformbasename=""
+transform_arg=""
 instcmd="$mvprog"
-chmodcmd=""
+chmodcmd="$chmodprog 0755"
 chowncmd=""
 chgrpcmd=""
 stripcmd=""
@@ -36,6 +52,7 @@
 mvcmd="$mvprog"
 src=""
 dst=""
+dir_arg=""
 
 while [ x"$1" != x ]; do
     case $1 in
@@ -43,6 +60,10 @@
 	    shift
 	    continue;;
 
+	-d) dir_arg=true
+	    shift
+	    continue;;
+
 	-m) chmodcmd="$chmodprog $2"
 	    shift
 	    shift
@@ -62,10 +83,20 @@
 	    shift
 	    continue;;
 
+	-t=*) transformarg=`echo $1 | sed 's/-t=//'`
+	    shift
+	    continue;;
+
+	-b=*) transformbasename=`echo $1 | sed 's/-b=//'`
+	    shift
+	    continue;;
+
 	*)  if [ x"$src" = x ]
 	    then
 		src=$1
 	    else
+		# this colon is to work around a 386BSD /bin/sh bug
+		:
 		dst=$1
 	    fi
 	    shift
@@ -75,46 +106,146 @@
 
 if [ x"$src" = x ]
 then
-	echo "install:  no input file specified"
+	echo "install:	no input file specified"
 	exit 1
+else
+	true
 fi
 
-if [ x"$dst" = x ]
-then
-	echo "install:  no destination specified"
-	exit 1
-fi
+if [ x"$dir_arg" != x ]; then
+	dst=$src
+	src=""
+	
+	if [ -d $dst ]; then
+		instcmd=:
+		chmodcmd=""
+	else
+		instcmd=mkdir
+	fi
+else
 
+# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
+# might cause directories to be created, which would be especially bad 
+# if $src (and thus $dsttmp) contains '*'.
+
+	if [ -f $src -o -d $src ]
+	then
+		true
+	else
+		echo "install:  $src does not exist"
+		exit 1
+	fi
+	
+	if [ x"$dst" = x ]
+	then
+		echo "install:	no destination specified"
+		exit 1
+	else
+		true
+	fi
 
 # If destination is a directory, append the input filename; if your system
 # does not like double slashes in filenames, you may need to add some logic
 
-if [ -d $dst ]
-then
-	dst="$dst"/`basename $src`
+	if [ -d $dst ]
+	then
+		dst="$dst"/`basename $src`
+	else
+		true
+	fi
 fi
 
+## this sed command emulates the dirname command
+dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
+
+# Make sure that the destination directory exists.
+#  this part is taken from Noah Friedman's mkinstalldirs script
+
+# Skip lots of stat calls in the usual case.
+if [ ! -d "$dstdir" ]; then
+defaultIFS='	
+'
+IFS="${IFS-${defaultIFS}}"
+
+oIFS="${IFS}"
+# Some sh's can't handle IFS=/ for some reason.
+IFS='%'
+set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'`
+IFS="${oIFS}"
+
+pathcomp=''
+
+while [ $# -ne 0 ] ; do
+	pathcomp="${pathcomp}${1}"
+	shift
+
+	if [ ! -d "${pathcomp}" ] ;
+        then
+		$mkdirprog "${pathcomp}"
+	else
+		true
+	fi
+
+	pathcomp="${pathcomp}/"
+done
+fi
+
+if [ x"$dir_arg" != x ]
+then
+	$doit $instcmd $dst &&
+
+	if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi &&
+	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi &&
+	if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi &&
+	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi
+else
+
+# If we're going to rename the final executable, determine the name now.
+
+	if [ x"$transformarg" = x ] 
+	then
+		dstfile=`basename $dst`
+	else
+		dstfile=`basename $dst $transformbasename | 
+			sed $transformarg`$transformbasename
+	fi
+
+# don't allow the sed command to completely eliminate the filename
+
+	if [ x"$dstfile" = x ] 
+	then
+		dstfile=`basename $dst`
+	else
+		true
+	fi
+
 # Make a temp file name in the proper directory.
 
-# Avoid dirname, which doesn't exist everywhere...
-dstdir=`echo $dst | sed 's,/[^/]*$,,'`
-dsttmp=$dstdir/#inst.$$#
+	dsttmp=$dstdir/#inst.$$#
 
 # Move or copy the file name to the temp name
 
-$doit $instcmd $src $dsttmp || exit $?
+	$doit $instcmd $src $dsttmp &&
+
+	trap "rm -f ${dsttmp}" 0 &&
 
 # and set any options; do chmod last to preserve setuid bits
 
-if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; fi
-if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; fi
-if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; fi
-if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; fi
+# If any of these fail, we abort the whole thing.  If we want to
+# ignore errors from any of these, just make sure not to ignore
+# errors from the above "$doit $instcmd $src $dsttmp" command.
+
+	if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi &&
+	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi &&
+	if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi &&
+	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi &&
 
 # Now rename the file to the real destination.
 
-$doit $rmcmd $dst
-$doit $mvcmd $dsttmp $dst || exit $?
+	$doit $rmcmd -f $dstdir/$dstfile &&
+	$doit $mvcmd $dsttmp $dstdir/$dstfile 
+
+fi &&
 
 
 exit 0