Problems building bison-3.0

[Colin Daley]

Hello All,

I attempted to build bison-3.0 on Windows 8 Pro with MinGW/MSYS. I
was pleasantly surprised to see that it worked, but there were two small
problems:

1) m4
./configure detects m4 as /bin/m4.exe, which is not wrong, in the sense
that this is the MSYS path to m4. However, this ends up in config.h as
#define M4 "/bin/m4.exe". The Windows path, i.e.
`c:/mingw/msys/1.0/bin/m4.exe' is what should be there. Fortunately,
this is easily solved by
M4=c:/mingw/msys/1.0/bin/m4.exe ./configure ...

Still, it would be good if the configure script could do the right thing.

2) Documentation

The directory `figs' is missing, so:
  MAKEINFO doc/bison.info
./doc/bison.texi:9437: warning: @image file `figs/example-shift.txt' 
(for text)
unreadable: No such file or directory.
./doc/bison.texi:9459: warning: @image file `figs/example-reduce.txt' 
(for text)
 unreadable: No such file or directory.

Also. `make pdf' gives:
make[1]: *** No rule to make target `doc/figs/example.pdf', needed by 
`doc/bison
.pdf'.  Stop.

Regards,
Colin Daley.