[Bug libstdc++/66011] [6 Regression] call to '__open_missing_mode' declared with attribute error

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66011

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu May 14 13:23:14 2015
New Revision: 223196

URL: https://gcc.gnu.org/viewcvs?rev=223196&root=gcc&view=rev
Log:
        PR libstdc++/66011
        * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for fchmod and
        sendfile.
        * config.h.in: Regenerate.
        * configure: Regenerate.
        * src/filesystem/ops.cc (do_copy_file): Fix arguments to open(). Do
        not return after copying contents. Use fchmod, fchmodat, and sendfile
        when available.
        (current_path, permissions, space): Use errno not return value.

Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/acinclude.m4
    trunk/libstdc++-v3/config.h.in
    trunk/libstdc++-v3/configure
    trunk/libstdc++-v3/src/filesystem/ops.cc