It's now pretty clear that bison is not going to work correctly on Msys. Works perfectly on cygwin, so I used strace to see the flow.
Bison depends on file handler support, which appears to be built into the "mount" support in cygwin, to translate from Windows to cygwin style directories. I thought "cygpath" might be involved (and missing from Msys), but that made no difference. Building on cygwin, and running the resulting bison.exe on Msys using the cygwin dll's also failed. strace also fails on Msys ... not sure why. This was just an exercise for me to understand what I might be dealing with when porting code with Msys .... looks to be more complicated than I imagined. I also notice the filesystem on Msys has some hidden behaviour: $ ls -ld /* drwxr-xr-x 2 dick Administrators 49152 May 9 19:09 /bin drwxr-xr-x 2 dick Administrators 4096 May 9 21:53 /etc drwxr-xr-x 4 dick Administrators 0 May 3 13:21 /home drwxr-xr-x 6 dick Administrators 65536 May 5 18:40 /include drwxr-xr-x 2 dick Administrators 0 Dec 3 20:33 /info drwxr-xr-x 3 dick Administrators 65536 May 9 16:30 /lib drwxr-xr-x 3 dick Administrators 0 Dec 3 20:33 /libexec drwxr-xr-x 7 dick Administrators 0 May 8 13:32 /local drwxr-xr-x 4 dick Administrators 0 Dec 3 20:33 /man drwxr-xr-x 39 dick Administrators 16384 May 9 21:12 /mingw drwxr-xr-x 6 dick Administrators 0 May 9 16:31 /mingw32 drwxr-xr-x 2 dick Administrators 0 Dec 3 22:01 /sbin drwxr-xr-x 16 dick Administrators 4096 May 7 21:59 /share drwxr-xr-x 3 dick Administrators 0 Aug 13 2009 /var Notice the absence of /usr in the root directory. The default for most gnu software uses "prefix=/usr/local" ls -ld /usr/* .... produces the same result shown above. _______________________________________________ help-bison@gnu.org http://lists.gnu.org/mailman/listinfo/help-bison
