New flex warnings
With GCC 4.3, I get warnings from every flex scanner that 'input' is defined
but not used. This can be solved by adding %option noinput. I tested this
option with a current flex and with the old 2.5.4a; both accept it. See
attached patch. Does anyone see problems with this?
Attachments:
flex-noinput.patchtext/x-diff; charset=us-ascii; name=flex-noinput.patchDownload+6-0
Peter Eisentraut <peter_e@gmx.net> writes:
With GCC 4.3, I get warnings from every flex scanner that 'input' is defined
but not used. This can be solved by adding %option noinput. I tested this
option with a current flex and with the old 2.5.4a; both accept it. See
attached patch. Does anyone see problems with this?
Hm, I wonder why we didn't see those before ... [ looks at code... ]
Oh: yyinput() recurses internally, so even though it's not called
from anywhere else, older gcc's don't realize it's really unreferenced.
I confirm 2.5.4 has the noinput option. Patch seems ok from here,
regards, tom lane