bison behavior changed

[Fumitoshi UKAI <ukai@debian.or.jp>]

Hi,

bison 1.50 was released, but it doesn't accept ambiguous rules
that was no problem prior to bison 1.50.  For examples, gram.y in 
twm in xfree86 [Bug#164486] and drivers/scsi/aic7xxx/aicasm/aicasm_gram.y
in linux-2.4.19.

Please check packages that build-depends on bison is really built
with bison 1.50.  There are 295 packages.

grep-dctrl -F Build-Depends -s Package bison /var/lib/apt/lists/*Sources | sort | uniq

Thanks,
Fumitoshi UKAI