java.io.IOException: mmap not implemented error

[René Berber]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi,

Trying to compile gcc-4.0.2 under Cygwin I stumbled into this error, just after
gcj-dbtool is compiled it is used:

   ./gcj-dbtool -n classmap.db || touch classmap.db
   error: could not create classmap.db: java.io.IOException: mmap not implemented

classmap.db was created as a 1.4M file filled with zeroes.

Searching the Web I found the same error happens with Sun java [Ref:
http://bugs.sun.com/bugdatabase/view_bug.do;:YfiG?bug_id=4724038] at least with
HP-UX but this probably is unrelated.  In this case the problem is that mmaped
files cannot have more that one simultaneous access under HP-UX.

Any ideas about what's the problem?

Should I run gcj-dbtool under gdb to report more info?

Thanks.
- --
René Berber
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2 (Cygwin)
Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org

iEYEARECAAYFAkNzzIgACgkQL3NNweKTRgwSUwCeNhQfppnGE1CbAjxRBdIB82kH
yfMAnig8jXXCxxbqjLsl7p2Ml8zPMNdL
=D2Mx
-----END PGP SIGNATURE-----