just downloaded the last version of matplotlib (matplotlib-0.87.2.tar.gz) and the bug in setupext.py is still there... I AGAIN have to :
# add one line in setupext.py:
if not os.path.exists(o.tcl_inc):
print 'cannot find tcl/tk headers. giving up.'
so that it works.
Is there a way that this bug could be corrected once and for all (or is it that I am doing something wrong?)