Build bison warning

[Stephan Bergmann]

On 09/21/2014 08:29 AM, julien2412 wrote:
> /home/julien/compile-libreoffice/libreoffice/connectivity/source/parse/sqlbison.y:
> warning: 13 shift/reduce conflicts [-Wconflicts-sr]
> /home/julien/compile-libreoffice/libreoffice/connectivity/source/parse/sqlbison.y:
> warning: 15 reduce/reduce conflicts [-Wconflicts-rr]
[...]
> What about reduce and shift conflicts, any bison expert here?

Shift/reduce and (for GLR parsers, which that sqlbison.y is) 
reduce/reduce conflicts are somewhat common and expected, so there's 
even %expect and %expect-rr declarations that specify the number of 
expected sift/reduce and reduce/reduce conflicts, respectively, and 
Bison will then only warn if the numbers are wrong.  Though, of course, 
somebody familiar with that sqlbison.y should probably have a look 
before blindly adding such declarations to silence the warnings.

Stephan