With PDL 2.4.2 I get:
$x = rfits "ccd2001c1.fits"
Can't use string ("arc") as a HASH ref while "strict refs" in use at /Library/
Perl/5.8.6/darwin-thread-multi-2level/PDL/IO/FITS.pm line 410.
with a certain FITS file. Culprit is this FITS header keyword:
COMMENT = 'arc' / comment
I suspect this is an illegal FITS usage by Magellan instruments since
COMMENT has another use.
Anyway the fix is to remove the 'use strict' from FITS.pm
Is that OK????