#! /bin/sh

#
# Find the filename part of the second argument without the directory.
# For example, take /opt/mx/lib/libMx.dylib and return libMx.dylib.
#

FILENAME=`/bin/echo $2 | /usr/bin/rev | cut -d'/' -f1 | rev`

#
# Find the existing pathname in the binary.
#

PATHNAME=`/usr/bin/otool -L $1 | /usr/bin/grep ${FILENAME} | /usr/bin/awk '{print $1}'`

/bin/echo "$1: Changing library path ${PATHNAME} to $2"

#
# Replace the existing pathname with the new pathname.
#

/usr/bin/install_name_tool -change ${PATHNAME} $2 $1

#
# Apparently install_name_tool does not necessarily return an error, if the
# pathname change was not successfully made.  Because of this, we explicitly
# check to verify that the name change succeeded.
#

PATHNAME_NEW=`/usr/bin/otool -L $1 | /usr/bin/grep ${FILENAME} | /usr/bin/awk '{print $1}'`

if [ ${PATHNAME_NEW} != $2 ]; then
	/bin/echo "ERROR: The library path name was NOT changed to $2."
	exit 1
fi

exit 0