Although the Linux syscall renameat2 is not in glibc (yet?), it is
useful to have access to its RENAME_NOREPLACE flag.
* MODULES.html.sh (func_all_modules): Add renameat2.
* lib/renameat2.c, lib/renameat2.h, modules/renameat2:
* modules/renameat2-tests, tests/test-renameat2.c: New files.
* lib/renameat.c (renameat): Move most of the implementation
to renameat2, and just call renameat2.
* modules/renameat (Files): Remove lib/at-func2.c.
(Depends-on): Depend only on renameat2.
(Include): Remove <fcntl.h>.
* modules/renameat-tests (test_renameat_LDADD): Add $(LIB_EACCESS),
since renameat (via renameat2) might use faccessat.
These modules use statat and lstatat, not fstatat; so depend on
the statat module, which was split out recently from fstatat.
* modules/fchownat, modules/unlinkat: Change fstatat to statat.
* modules/renameat: Likewise. Also delete fstat.
URL: http://bugs.gentoo.org/468790
at-func2 still needs xalloc_die because of openat-die, but this
change is still good to make.
* modules/linkat (Depends-on): Use filenamecat-lgpl, not
filenamecat.
* modules/renameat (Depends-on): Likewise.
Signed-off-by: Eric Blake <ebb9@byu.net>
Passes on Linux and cygwin 1.7 native renameat, and on systems
lacking renameat, but fails on Solaris 9 and 10 for now.
* modules/renameat: New file.
* lib/renameat.c (renameat): Likewise.
* m4/renameat.m4 (gl_FUNC_RENAMEAT): Likewise.
* m4/stdio_h.m4 (gl_STDIO_H_DEFAULTS): Add witnesses.
* modules/stdio (Makefile.am): Substitute them.
* lib/stdio.in.h (renameat): Declare it.
* MODULES.html.sh (systems lacking POSIX:2008): Mention module.
* doc/posix-functions/renameat.texi (renameat): Likewise.
* modules/renameat-tests: New test.
* tests/test-renameat.c: Likewise.
Signed-off-by: Eric Blake <ebb9@byu.net>
Paul Eggert