Windows version of bison

[Jon Kinsey]

Hi,

I downloaded the windows setup for bison 1.875 and got the following 
error on running:
 _spawnvp: Invalid argument

Un-deterred I downloaded the source and built it with dev studio.  Turns 
out the error is because m4.exe can't be found.  Downloading that didn't 
help as it wasn't looking in the bin directory.  Copying m4.exe to the 
local directory did work, but I guess isn't ideal.


Whilst testing the first example in the manual (rpcalc) a small bug 
showed in the epilogue scanning code, code_start is referenced before 
it's been defined (scan-gram.l:616).  It didn't seem to effect anything 
so I guess this value isn't used in this example.  Perhaps the IF_LINT 
code should be removed from the initialization line of code_start?

Jon