I think the -nt is wider spread than the GNU(?)-make-specials, and the goal I want to reach is not really essential.
What about this:
function create_xversion()
{
echo $2
D=`date -r $2 "+%b %e %Y %H:%M"`
echo \#define BDATETIME \"$D\" >$1
}
FILES=`ls -t *.c *.h`
create_xversion xversion.h $FILES
--
Helmut Karlowski