91,92c91,92
< m4env.Append(M4FLAGS='-DSRCDIR=%s' % Dir('.'))
< m4env['M4COM'] = 'cd ${SOURCE.rsrcdir} && $M4 $M4FLAGS $SOURCES > ${TARGET.abspath}'
---
> m4env.Append(M4FLAGS='-DSRCDIR=%s' % Dir('.').path)
> m4env['M4COM'] = '$M4 $M4FLAGS $SOURCES > $TARGET'