R-alpha: Bugs in R-0.60

From: Martyn Plummer <plummer@iarc.fr>
To: r-devel@stat.math.ethz.ch
Subject: R-alpha: Bugs in R-0.60

Thanks to the core team for releasing R-0.60. I found a couple of
bugs.

1) Segfault!
assign(character(0),1)
Fix: Obviously, check the string length. The same problem may occur
in other places but I haven't done an extensive search.
x <- 1
attr(x, character(0))

2) The function GStrHeight (graphics.c) uses the conversion factors
for the X axis instead of the Y axis. This causes strangeness in
legend() when the axes are on different scales.
Fix: Replace fig2dev.bx, win2fig.bx and ipr[0] with
fig2dev.by, win2fig.by and ipr[1], respectively.