or SIGBUS to indicate corruption in the compressed file!
Do some error checking on the array indices in the MTF macro to
return "data error" if we get outrageous values. Some of these
values are by observation, and have been tested on all bz2 files
in the distfiles directory and a range of bz2 files up to 44MB
in size.
Should fix problem reported in PR bin/8237 by NAKAJIMA Yoshihiro.
fvdl