#! /bin/sh
#############################################################################
#
# MODULE:   	python wrapper
# AUTHOR(S):	William Kyngesburye - kyngchaos@kyngchaos.com
# PURPOSE:  	handle arch options on OSX for running python.
# COPYRIGHT:    (C) 2000-2008 by the GRASS Development Team
#
#               This program is free software under the GNU General Public
#   	    	License (>=v2). Read the file COPYING that comes with GRASS
#   	    	for details.
#
#############################################################################

# wxpython-based scripts must be started from pythonw.  And depending on the
# installed wxpython, it may only be available in 32bits, while python may
# at the same time run 64bit by default.  Newer systems may also reexec python
# as pythonw automatically as needed, except they don't respond to the arch
# command (and that's an Apple-only thing, and only when /usr/bin/python is
# used, yet /usr/bin/pythonw2.6 DOES respond to arch).  The most universal
# and reliable method is probably to not depend on Apple's customizations and
# execute pythonw directly, 32bit if necessary.

if [ -z "$GISBASE" ] ; then
    echo "You must be in GRASS GIS to run this program." >&2
    exit 1
fi

SYSARCH=`uname -p`
SYSVER=`uname -r | cut -d . -f 1`

if [ ! "$GRASS_PYTHONWX" ] ; then
	GRASS_PYTHONWX="pythonw"
fi
# can't run python 64bit if wx not 64bit, assume OSX 10.5+  possible 64bit
if [ $(($SYSVER)) -gt 5 ] && [ "$GRASS_WX64BIT" = "0" ] ; then
	case $SYSARCH in
		powerpc) pyarch="-ppc" ;;
		i386) pyarch="-i386" ;;
		*) pyarch="" ;;
	esac
	exec /usr/bin/arch $pyarch "$GRASS_PYTHONWX" "$@"
else
	exec "$GRASS_PYTHONWX" "$@"
fi