year=`exec date +%Y`
echo -n "Checking that copyright in documentation contains 2009-$year... "
# Read the value of variable `copyright' defined in 'doc/conf.py'.
-# As __file__ is not defined when python command is given from command line,
-# it is defined before contents of 'doc/conf.py' (which dereferences __file__)
-# is executed.
-copyrightline=`exec python -c "with open('doc/conf.py') as cf: __file__ = ''; exec(cf.read()); print(copyright)"`
+copyrightline=$(grep ^copyright doc/conf.py)
case $copyrightline in
*2009-$year*)
echo Yes. ;;