[CMake] external tools in visual studio

[th.tom at gmx.de]

Hey Philip,

thats good to know for most people using bison and flex!

In my special case, I have to add some stuff, as the old solaris version, I am working with only supplies yacc instead of Gnu Bison and "lex" instread of "flex".

Sadly these programs does not provide the same command line options :-( what makes it little harder. This is one point Eric addresses in his script.

- tom

> 
> FWIW, FindFLEX.cmake and FindBISON.cmake were both recently checked into
> CMake CVS and might be worth a look.
> 
> http://public.kitware.com/cgi-bin/viewcvs.cgi/Modules/FindFLEX.cmake?root=CMake&view=log
> http://public.kitware.com/cgi-bin/viewcvs.cgi/Modules/FindBISON.cmake?root=CMake&view=log
> 
> The FindBISON module will suffer the same problem as posted above. 
> Someone
> could a patch into the bison people to allow the full path to m4 to be
> specified as a command line option?
> 
> -- 
> Philip Lowman