dvipng-0.8 bugs

[Thomas K. <wi...@Ne...>]

Hi!

Two problems in dvipng-0.8:
The configure script copies kpsewhich, but doesn't
ignore its permissions when trying to delete it (usually
it will be r-xr-xr-x and rm might ask); patch attached.

dvipng gives _lots_ of warnings:
	free(): warning: junk pointer, too high to make sense.
This usually means freeing unallocated space, or double-freeing
space.
Log of one run attached.

dvipng-0.6 didn't give these warnings on the same file.
[0.7 didn't work for me.]

Cheers,
 Thomas