Update Gnulib to the latest git version

This patch allows us to remove a workaround in common-defs.h due to
the gnulib fix in:
https://lists.gnu.org/archive/html/bug-gnulib/2019-11/msg00024.html

All of GDB's local Gnulib patches were already fixed upstream per their
descriptions, so this patch removes them all.

The problem listed here:
https://sourceware.org/ml/gdb-patches/2019-08/msg00553.html
was probably partially fixed by moving gnulib to the toplevel;
for the remainder, I am setting MAKEOVERRIDES to empty in
gnulib/Makefile.am.  See also the comment there (it fixes an issue
with compilers that don't use C99/C11 by default such as GCC 4.8.5,
the default on Centos 7).

gdb/ChangeLog:

2019-12-16  Christian Biesinger  <cbiesinger@google.com>

	* gdbsupport/common-defs.h: Remove workaround for a gnulib bug
	(we no longer need to include time.h before pathmax.h)

gnulib/ChangeLog:

2019-12-16  Christian Biesinger  <cbiesinger@google.com>

	* Makefile.am: Set MAKEOVERRIDES.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* config.in: Regenerate.
	* configure: Regenerate.
	* import/Makefile.am: Update.
	* import/Makefile.in: Regenerate.
	* import/_Noreturn.h: New file.
	* import/alloca.c (i00afunc): Update.
	* import/alloca.in.h (if): Update.
	* import/arg-nonnull.h: Rename from import/extra/snippet/arg-nonnull.h.
	* import/arpa_inet.in.h (if): Update.
	* import/assure.h: Update.
	* import/at-func.c: Update.
	* import/basename-lgpl.c: Update.
	* import/canonicalize-lgpl.c (if): Update.
	* import/c++defs.h: Rename from import/extra/snippet/c++defs.h.
	* import/cdefs.h: New file.
	* import/chdir-long.c: Update.
	* import/chdir-long.h: Update.
	* import/cloexec.c: Update.
	* import/cloexec.h: Update.
	* import/close.c: Update.
	* import/closedir.c: Update.
	* import/config.charset: Remove.
	* import/dirent-private.h: Update.
	* import/dirent.in.h: Update.
	* import/dirfd.c: Update.
	* import/dirname-lgpl.c: Update.
	* import/dirname.h (base_name): Update.
	* import/dosname.h (if): Update.
	* import/dup-safer-flag.c: New file.
	* import/dup-safer.c: Update.
	* import/dup.c: Update.
	* import/dup2.c (if): Update.
	(dup2_nothrow): Update.
	(ms_windows_dup2): Update.
	* import/errno.in.h (if): Update.
	(elif): Update.
	* import/error.c (if): Update.
	(strerror_r): Update.
	(program_name): Update.
	(error): Update.
	(error_at_line): Update.
	* import/error.h: Update.
	* import/exitfail.c: Update.
	* import/exitfail.h: Update.
	* import/extra/config.rpath: Update.
	* import/extra/snippet/_Noreturn.h: Remove.
	* import/extra/update-copyright: Update.
	* import/fchdir.c: Update.
	* import/fcntl.c (rpl_fcntl): Update.
	(INCL_DOS): Update.
	(if): Update.
	(rpl_fcntl_DUPFD): Update.
	(rpl_fcntl_DUPFD_CLOEXEC): Update.
	(klibc_fcntl): Update.
	(fcntl): Update.
	(have_dupfd_cloexec): Update.
	* import/fcntl.in.h (if): Update.
	(creat): Update.
	(_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(_GL_CXXALIAS_SYS): Update.
	(_GL_CXXALIASWARN): Update.
	(_GL_WARN_ON_USE): Update.
	(O_CLOEXEC): Update.
	(GNULIB_defined_O_CLOEXEC): Update.
	* import/fd-hook.c: Update.
	* import/fd-hook.h: Update.
	* import/fd-safer-flag.c: New file.
	* import/fd-safer.c: Update.
	* import/fdopendir.c: Update.
	* import/filename.h: Update.
	* import/filenamecat-lgpl.c (longest_relative_suffix): Update.
	(mfile_name_concat): Update.
	* import/filenamecat.h: Update.
	* import/flexmember.h: Update.
	* import/float+.h: Update.
	* import/float.c: Update.
	* import/float.in.h (LDBL_MIN): Update.
	* import/fnmatch.c (__builtin_expect): Update.
	(FALLTHROUGH): Update.
	* import/fnmatch.in.h (_FNMATCH_H): Update.
	(_): Update.
	(fnmatch): Update.
	(_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(_GL_FUNCDECL_SYS): Update.
	(_GL_CXXALIAS_SYS): Update.
	(_GL_CXXALIASWARN): Update.
	(_GL_WARN_ON_USE): Update.
	* import/fnmatch_loop.c (FCT): Update.
	(EXT): Update.
	* import/fpucw.h (GET_FPUCW): Update.
	(SET_FPUCW): Update.
	* import/frexp.c: Update.
	* import/frexpl.c: Update.
	* import/fstat.c (stat): Update.
	(fstat): Update.
	(WINDOWS_NATIVE): Update.
	(fstat_nothrow): Update.
	(WIN32_LEAN_AND_MEAN): Update.
	* import/fstatat.c (normal_fstatat): Update.
	(rpl_fstatat): Update.
	* import/getcwd-lgpl.c (rpl_getcwd): Update.
	* import/getcwd.c (getcwd_nothrow): Update.
	(getcwd_system): Update.
	(__getcwd): Update.
	* import/getdtablesize.c (if): Update.
	(_setmaxstdio): Update.
	(_setmaxstdio_nothrow): Update.
	(getdtablesize): Update.
	* import/getlogin_r.c (if): Update.
	(getlogin_r): Update.
	* import/getprogname.c (getprogname): Update.
	* import/getprogname.h: Update.
	* import/gettext.h (if): Update.
	* import/gettimeofday.c (WINDOWS_NATIVE): Update.
	(localtime): Update.
	(GetProcAddress): Update.
	(gmtime): Update.
	(void): Update.
	(struct tm): Update.
	(rpl_localtime): Update.
	(initialize): Update.
	(rpl_gmtime): Update.
	(tzset): Update.
	(rpl_tzset): Update.
	* import/glob-libc.h (_Restrict_): Update.
	(__size_t): Update.
	(__need_size_t): Update.
	(glob): Update.
	(globfree): Update.
	(__REDIRECT_NTH): Update.
	(glob64): Update.
	(globfree64): Update.
	(glob_pattern_p): Update.
	* import/glob.c (POSIX): Update.
	(if): Update.
	(__set_errno): Update.
	(getpwnam_r): Update.
	(__lstat64): Update.
	(FLEXIBLE_ARRAY_MEMBER): Update.
	(__glob_pattern_p): Update.
	(GETPW_R_SIZE_MAX): Update.
	(GET_LOGIN_NAME_MAX): Update.
	(DT_UNKNOWN): Update.
	(DT_DIR): Update.
	(DT_LNK): Update.
	(D_TYPE_TO_RESULT): Update.
	(readdir_result_might_be_symlink): Update.
	(readdir_result_might_be_dir): Update.
	(readdir_result_type): Update.
	(D_INO_TO_RESULT): Update.
	(READDIR_RESULT_INITIALIZER): Update.
	(attribute_hidden): Update.
	(__attribute_noinline__): Update.
	(__builtin_expect): Update.
	(__glibc_unlikely): Update.
	(__has_builtin): Update.
	(__glob_pattern_type): Update.
	(is_dir): Update.
	(glob): Update.
	(globfree): Update.
	(libc_hidden_def): Update.
	(DIRSEP_CHAR): Update.
	(prefix_array): Update.
	(weak_alias): Update.
	(link_exists2_p): Update.
	(link_exists_p): Update.
	(glob_in_dir): Update.
	(GLOBNAMES_MEMBERS): Update.
	* import/glob.in.h (_GL_GLOB_H): Update.
	(_): Update.
	(__BEGIN_DECLS): Update.
	(__END_DECLS): Update.
	(_Restrict_): Update.
	(__THROW): Update.
	(__THROWNL): Update.
	(__size_t): Update.
	(__USE_GNU): Update.
	(glob): Update.
	(globfree): Update.
	(glob_pattern_p): Update.
	(__glob_pattern_p): Update.
	(__GLOB_GNULIB): Update.
	(_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(_GL_FUNCDECL_SYS): Update.
	(_GL_CXXALIAS_SYS): Update.
	(_GL_WARN_ON_USE): Update.
	* import/glob_internal.h: New file.
	* import/glob_pattern_p.c: New file.
	* import/globfree.c: New file.
	* import/glthread/lock.c (glthread_rwlock_init_for_glibc): Update.
	(glthread_rwlock_rdlock_multithreaded): Update.
	(glthread_once_call): Update.
	(glthread_once_multithreaded): Update.
	(glthread_once_singlethreaded): Update.
	(glthread_recursive_lock_init_multithreaded): Update.
	(glthread_recursive_lock_lock_multithreaded): Update.
	(glthread_recursive_lock_unlock_multithreaded): Update.
	(glthread_recursive_lock_destroy_multithreaded): Update.
	(glthread_lock_init_func): Update.
	(glthread_lock_lock_func): Update.
	(glthread_lock_unlock_func): Update.
	(glthread_lock_destroy_func): Update.
	(gl_waitqueue_t): Update.
	(gl_waitqueue_init): Update.
	(gl_waitqueue_add): Update.
	(gl_waitqueue_notify_first): Update.
	(gl_waitqueue_notify_all): Update.
	(glthread_rwlock_init_func): Update.
	(glthread_rwlock_rdlock_func): Update.
	(glthread_rwlock_wrlock_func): Update.
	(glthread_rwlock_unlock_func): Update.
	(glthread_rwlock_destroy_func): Update.
	(glthread_recursive_lock_init_func): Update.
	(glthread_recursive_lock_lock_func): Update.
	(glthread_recursive_lock_unlock_func): Update.
	(glthread_recursive_lock_destroy_func): Update.
	(glthread_once_func): Update.
	* import/glthread/lock.h (c11_threads_in_use): Update.
	(pthread_in_use): Update.
	(gl_rwlock_initializer): Update.
	(glthread_rwlock_init): Update.
	(glthread_rwlock_init_for_glibc): Update.
	(pth_in_use): Update.
	(gl_lock_define): Update.
	(gl_lock_define_initialized): Update.
	(gl_lock_initializer): Update.
	(glthread_lock_init): Update.
	(glthread_lock_lock): Update.
	(glthread_lock_unlock): Update.
	(glthread_lock_destroy): Update.
	(gl_rwlock_define): Update.
	(gl_rwlock_define_initialized): Update.
	(glthread_rwlock_rdlock): Update.
	(glthread_rwlock_wrlock): Update.
	(glthread_rwlock_unlock): Update.
	(glthread_rwlock_destroy): Update.
	(gl_recursive_lock_define): Update.
	(gl_recursive_lock_define_initialized): Update.
	(gl_recursive_lock_initializer): Update.
	(glthread_recursive_lock_init): Update.
	(glthread_recursive_lock_lock): Update.
	(glthread_recursive_lock_unlock): Update.
	(glthread_recursive_lock_destroy): Update.
	(gl_once_define): Update.
	(glthread_once): Update.
	(glthread_once_multithreaded): Update.
	(glthread_once_singlethreaded): Update.
	(thread_in_use): Update.
	(glthread_recursive_lock_init_multithreaded): Update.
	(glthread_recursive_lock_lock_multithreaded): Update.
	(glthread_recursive_lock_unlock_multithreaded): Update.
	(glthread_recursive_lock_destroy_multithreaded): Update.
	(glthread_lock_init_func): Update.
	(glthread_lock_lock_func): Update.
	(glthread_lock_unlock_func): Update.
	(glthread_lock_destroy_func): Update.
	(glthread_rwlock_init_func): Update.
	(glthread_rwlock_rdlock_func): Update.
	(glthread_rwlock_wrlock_func): Update.
	(glthread_rwlock_unlock_func): Update.
	(glthread_rwlock_destroy_func): Update.
	(glthread_recursive_lock_init_func): Update.
	(glthread_recursive_lock_lock_func): Update.
	(glthread_recursive_lock_unlock_func): Update.
	(glthread_recursive_lock_destroy_func): Update.
	(glthread_once_func): Update.
	* import/glthread/threadlib.c: Update.
	* import/hard-locale.c: Update.
	* import/hard-locale.h: Update.
	* import/inet_ntop.c: Update.
	* import/intprops.h (__has_builtin): Update.
	(_GL_INT_CONVERT): Update.
	(_GL_INT_NEGATE_CONVERT): Update.
	(verify): Update.
	(_GL_HAS_BUILTIN_OVERFLOW): Update.
	(_GL_HAS_BUILTIN_ADD_OVERFLOW): Update.
	(_GL_HAS_BUILTIN_OVERFLOW_P): Update.
	(_GL_HAS_BUILTIN_MUL_OVERFLOW): Update.
	(_GL_BINARY_OP_OVERFLOW): Update.
	(INT_ADD_WRAPV): Update.
	(INT_SUBTRACT_WRAPV): Update.
	(INT_MULTIPLY_WRAPV): Update.
	(_GL_INT_OP_WRAPV): Update.
	(_GL_INT_OP_WRAPV_SMALLISH): Update.
	(_GL_INT_OP_WRAPV_LONGISH): Update.
	(_GL_INT_OP_CALC): Update.
	(_GL_INT_OP_CALC1): Update.
	(_GL_INT_OP_WRAPV_VIA_UNSIGNED): Update.
	(_GL_INT_ADD_RANGE_OVERFLOW): Update.
	(_GL_INT_SUBTRACT_RANGE_OVERFLOW): Update.
	(_GL_INT_MULTIPLY_RANGE_OVERFLOW): Update.
	* import/inttypes.in.h (if): Update.
	* import/isnan.c: Update.
	* import/isnand-nolibm.h: Update.
	* import/isnand.c: Update.
	* import/isnanl-nolibm.h: Update.
	* import/isnanl.c: Update.
	* import/itold.c: Update.
	* import/libc-config.h: New file.
	* import/limits.in.h (LLONG_MIN): Update.
	(LLONG_MAX): Update.
	(ULLONG_MAX): Update.
	(WORD_BIT): Update.
	(LONG_BIT): Update.
	* import/localcharset.c (setlocale): Update.
	(relocate): Update.
	(O_NOFOLLOW): Update.
	(ISSLASH): Update.
	(DIRECTORY_SEPARATOR): Update.
	(getc): Update.
	(volatile): Update.
	(get_charset_aliases): Update.
	(struct table_entry): Update.
	(alias_table_defined): Update.
	(locale_table_defined): Update.
	(locale_charset): Update.
	(if): Update.
	* import/localcharset.h: Update.
	* import/localtime-buffer.c: New file.
	* import/localtime-buffer.h: New file.
	* import/lstat.c (rpl_lstat): Update.
	* import/m4/00gnulib.m4: Update.
	* import/m4/__inline.m4: New file.
	* import/m4/absolute-header.m4: Update.
	* import/m4/alloca.m4: Update.
	* import/m4/arpa_inet_h.m4: Update.
	* import/m4/builtin-expect.m4: New file.
	* import/m4/canonicalize.m4: Update.
	* import/m4/chdir-long.m4: Update.
	* import/m4/close.m4: Update.
	* import/m4/closedir.m4: Update.
	* import/m4/codeset.m4: Update.
	* import/m4/configmake.m4: Remove.
	* import/m4/d-ino.m4: Update.
	* import/m4/d-type.m4: Update.
	* import/m4/dirent_h.m4: Update.
	* import/m4/dirfd.m4: Update.
	* import/m4/dirname.m4: Update.
	* import/m4/double-slash-root.m4: Update.
	* import/m4/dup.m4: Update.
	* import/m4/dup2.m4: Update.
	* import/m4/eealloc.m4: Update.
	* import/m4/environ.m4: Update.
	* import/m4/errno_h.m4: Update.
	* import/m4/error.m4: Update.
	* import/m4/exponentd.m4: Update.
	* import/m4/exponentl.m4: Update.
	* import/m4/extensions.m4: Update.
	* import/m4/extern-inline.m4: Update.
	* import/m4/fchdir.m4: Update.
	* import/m4/fcntl-o.m4: Update.
	* import/m4/fcntl.m4: Update.
	* import/m4/fcntl_h.m4: Update.
	* import/m4/fdopendir.m4: Update.
	* import/m4/filenamecat.m4: Update.
	* import/m4/flexmember.m4: Update.
	* import/m4/float_h.m4: Update.
	* import/m4/fnmatch.m4: Update.
	* import/m4/fnmatch_h.m4: New file.
	* import/m4/fpieee.m4: Update.
	* import/m4/frexp.m4: Update.
	* import/m4/frexpl.m4: Update.
	* import/m4/fstat.m4: Update.
	* import/m4/fstatat.m4: Update.
	* import/m4/getcwd-abort-bug.m4: Update.
	* import/m4/getcwd-path-max.m4: Update.
	* import/m4/getcwd.m4: Update.
	* import/m4/getdtablesize.m4: Update.
	* import/m4/getlogin.m4: New file.
	* import/m4/getlogin_r.m4: Update.
	* import/m4/getpagesize.m4: New file.
	* import/m4/getprogname.m4: Update.
	* import/m4/gettimeofday.m4: Update.
	* import/m4/glibc21.m4: Remove.
	* import/m4/glob.m4: Update.
	* import/m4/glob_h.m4: New file.
	* import/m4/gnulib-cache.m4: Update.
	* import/m4/gnulib-common.m4: Update.
	* import/m4/gnulib-comp.m4: Update.
	* import/m4/gnulib-tool.m4: Update.
	* import/m4/hard-locale.m4: Remove.
	* import/m4/host-cpu-c-abi.m4: New file.
	* import/m4/include_next.m4: Update.
	* import/m4/inet_ntop.m4: Update.
	* import/m4/inttypes-pri.m4: Update.
	* import/m4/inttypes.m4: Update.
	* import/m4/isnand.m4: Update.
	* import/m4/isnanl.m4: Update.
	* import/m4/largefile.m4: Update.
	* import/m4/lib-ld.m4: Update.
	* import/m4/lib-link.m4: Update.
	* import/m4/lib-prefix.m4: Update.
	* import/m4/limits-h.m4: Update.
	* import/m4/localcharset.m4: Update.
	* import/m4/locale-fr.m4: Update.
	* import/m4/locale-ja.m4: Update.
	* import/m4/locale-zh.m4: Update.
	* import/m4/localtime-buffer.m4: New file.
	* import/m4/lock.m4: Update.
	* import/m4/longlong.m4: Update.
	* import/m4/lstat.m4: Update.
	* import/m4/malloc.m4: Update.
	* import/m4/malloca.m4: Update.
	* import/m4/math_h.m4: Update.
	* import/m4/mbrtowc.m4: Update.
	* import/m4/mbsinit.m4: Update.
	* import/m4/mbsrtowcs.m4: Update.
	* import/m4/mbstate_t.m4: Update.
	* import/m4/memchr.m4: Update.
	* import/m4/memmem.m4: Update.
	* import/m4/mempcpy.m4: Update.
	* import/m4/memrchr.m4: Update.
	* import/m4/mkdir.m4: Update.
	* import/m4/mkdtemp.m4: Update.
	* import/m4/mkostemp.m4: Update.
	* import/m4/mmap-anon.m4: Update.
	* import/m4/mode_t.m4: Update.
	* import/m4/msvc-inval.m4: Update.
	* import/m4/msvc-nothrow.m4: Update.
	* import/m4/multiarch.m4: Update.
	* import/m4/netinet_in_h.m4: Update.
	* import/m4/nocrash.m4: Update.
	* import/m4/off_t.m4: Update.
	* import/m4/onceonly.m4: Remove.
	* import/m4/open-cloexec.m4: New file.
	* import/m4/open-slash.m4: New file.
	* import/m4/open.m4: Update.
	* import/m4/openat.m4: Update.
	* import/m4/opendir.m4: Update.
	* import/m4/pathmax.m4: Update.
	* import/m4/pthread_rwlock_rdlock.m4: New file.
	* import/m4/rawmemchr.m4: Update.
	* import/m4/readdir.m4: Update.
	* import/m4/readlink.m4: Update.
	* import/m4/realloc.m4: Update.
	* import/m4/rename.m4: Update.
	* import/m4/rewinddir.m4: Update.
	* import/m4/rmdir.m4: Update.
	* import/m4/save-cwd.m4: Update.
	* import/m4/secure_getenv.m4: Remove.
	* import/m4/setenv.m4: Update.
	* import/m4/signal_h.m4: Update.
	* import/m4/socklen.m4: Update.
	* import/m4/sockpfaf.m4: Update.
	* import/m4/ssize_t.m4: Update.
	* import/m4/stat-time.m4: New file.
	* import/m4/stat.m4: Update.
	* import/m4/std-gnu11.m4: New file.
	* import/m4/stdalign.m4: Update.
	* import/m4/stdbool.m4: Update.
	* import/m4/stddef_h.m4: Update.
	* import/m4/stdint.m4: Update.
	* import/m4/stdio_h.m4: Update.
	* import/m4/stdlib_h.m4: Update.
	* import/m4/strchrnul.m4: Update.
	* import/m4/strdup.m4: Update.
	* import/m4/strerror.m4: Update.
	* import/m4/strerror_r.m4: Update.
	* import/m4/string_h.m4: Update.
	* import/m4/strstr.m4: Update.
	* import/m4/strtok_r.m4: Update.
	* import/m4/sys_socket_h.m4: Update.
	* import/m4/sys_stat_h.m4: Update.
	* import/m4/sys_time_h.m4: Update.
	* import/m4/sys_types_h.m4: Update.
	* import/m4/sys_uio_h.m4: Update.
	* import/m4/tempname.m4: Update.
	* import/m4/threadlib.m4: Update.
	* import/m4/time_h.m4: Update.
	* import/m4/time_r.m4: Update.
	* import/m4/unistd-safer.m4: Update.
	* import/m4/unistd_h.m4: Update.
	* import/m4/warn-on-use.m4: Update.
	* import/m4/wchar_h.m4: Update.
	* import/m4/wchar_t.m4: Update.
	* import/m4/wctype_h.m4: Update.
	* import/m4/wint_t.m4: Update.
	* import/malloc.c: Update.
	* import/malloc/scratch_buffer.h: New file.
	* import/malloc/scratch_buffer_grow.c: New file.
	* import/malloc/scratch_buffer_grow_preserve.c: New file.
	* import/malloc/scratch_buffer_set_array_size.c: New file.
	* import/malloca.c (MAGIC_NUMBER): Update.
	(MAGIC_SIZE): Update.
	(struct preliminary_header): Update.
	(HEADER_SIZE): Update.
	(union header): Update.
	(verify): Update.
	(HASH_TABLE_SIZE): Update.
	(freea): Update.
	* import/malloca.h (malloca): Update.
	(nmalloca): Update.
	* import/malloca.valgrind: Remove.
	* import/math.in.h (_GL_MATH_CXX_REAL_FLOATING_DECL_2): Update.
	(func): Update.
	(rpl_func): Update.
	(f): Update.
	(d): Update.
	(l): Update.
	(_GL_WARN_ON_USE): Update.
	(_GL_WARN_ON_USE_ATTRIBUTE): Update.
	(FP_ILOGB0): Update.
	(FP_ILOGBNAN): Update.
	(acosf): Update.
	(_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(asinf): Update.
	(atanf): Update.
	(atan2f): Update.
	(cosf): Update.
	(coshf): Update.
	(expf): Update.
	(expl): Update.
	(expm1l): Update.
	(ilogbl): Update.
	(rintl): Update.
	(sinf): Update.
	(sinhf): Update.
	(sqrtf): Update.
	(tanf): Update.
	(tanhf): Update.
	(isfinite): Update.
	(isinf): Update.
	(isnan): Update.
	(GNULIB_defined_signbit): Update.
	(signbit): Update.
	* import/mbrtowc.c (FALLTHROUGH): Update.
	(locale_enc): Update.
	(locale_enc_cached): Update.
	(gl_lock_define_initialized): Update.
	(mbrtowc): Update.
	* import/mbsinit.c (if): Update.
	(mbsinit): Update.
	* import/mbsrtowcs-impl.h: Update.
	* import/mbsrtowcs-state.c: Update.
	* import/mbsrtowcs.c: Update.
	* import/memchr.c: Update.
	* import/memchr.valgrind: Update.
	* import/memmem.c (__builtin_expect): Update.
	* import/mempcpy.c: Update.
	* import/memrchr.c (__memrchr): Update.
	* import/mkdir.c (if): Update.
	* import/mkdtemp.c: Update.
	* import/mkostemp.c: Update.
	* import/msvc-inval.c: Update.
	* import/msvc-inval.h: Update.
	* import/msvc-nothrow.c: Update.
	* import/msvc-nothrow.h (if): Update.
	* import/netinet_in.in.h: Update.
	* import/open.c (open): Update.
	(if): Update.
	* import/openat-die.c: Update.
	* import/openat-priv.h: Update.
	* import/openat-proc.c: Update.
	* import/openat.c (rpl_openat): Update.
	* import/openat.h: Update.
	* import/opendir.c: Update.
	* import/pathmax.h (if): Update.
	* import/pipe-safer.c: Update.
	* import/rawmemchr.c: Update.
	* import/rawmemchr.valgrind: Update.
	* import/readdir.c (readdir): Update.
	* import/readlink.c: Update.
	* import/realloc.c: Update.
	* import/ref-add.sin: Remove.
	* import/ref-del.sin: Remove.
	* import/rename.c (if): Update.
	* import/rewinddir.c: Update.
	* import/rmdir.c: Update.
	* import/same-inode.h (SAME_INODE): Update.
	* import/save-cwd.c (save_cwd): Update.
	* import/save-cwd.h: Update.
	* import/scratch_buffer.h: New file.
	* import/secure_getenv.c: Remove.
	* import/setenv.c: Update.
	* import/signal.in.h: Update.
	* import/stat-time.c: New file.
	* import/stat-time.h: New file.
	* import/stat-w32.c: New file.
	* import/stat-w32.h: New file.
	* import/stat.c (if): Update.
	(stat): Update.
	(REPLACE_FUNC_STAT_DIR): Update.
	(WINDOWS_NATIVE): Update.
	(WIN32_LEAN_AND_MEAN): Update.
	(is_unc_root): Update.
	(rpl_stat): Update.
	* import/stdalign.in.h (elif): Update.
	* import/stdbool.in.h: Update.
	* import/stddef.in.h (_GL_STDDEF_ALIGNAS): Update.
	(max_align_t): Update.
	(GNULIB_defined_max_align_t): Update.
	* import/stdint.in.h (WINT_MIN): Update.
	(WINT_MAX): Update.
	(_STDINT_MIN): Update.
	(_STDINT_UNSIGNED_MIN): Update.
	(_STDINT_SIGNED_MIN): Update.
	(PTRDIFF_MIN): Update.
	(SIG_ATOMIC_MIN): Update.
	(WCHAR_MIN): Update.
	* import/stdio.in.h (if): Update.
	* import/stdlib.in.h (if): Update.
	(_GL_WARN_ON_USE): Update.
	(_GL_FUNCDECL_SYS): Update.
	(random): Update.
	(_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(srandom): Update.
	(initstate): Update.
	(setstate): Update.
	(_GL_CXXALIAS_SYS): Update.
	(_GL_CXXALIASWARN): Update.
	(GNULIB_defined_strtod_function): Update.
	(strtold): Update.
	(GNULIB_defined_strtold_function): Update.
	* import/str-two-way.h: Update.
	* import/strchrnul.c: Update.
	* import/strchrnul.valgrind: Update.
	* import/strdup.c: Update.
	* import/streq.h: Update.
	* import/strerror-override.c: Update.
	* import/strerror-override.h: Update.
	* import/strerror.c (strerror): Update.
	* import/strerror_r.c (safe_copy): Update.
	* import/string.in.h (_GL_FUNCDECL_SYS): Update.
	(_GL_CXXALIAS_SYS): Update.
	(_GL_CXXALIASWARN): Update.
	(_GL_WARN_ON_USE): Update.
	* import/stripslash.c: Update.
	* import/strnlen1.c: Update.
	* import/strnlen1.h: Update.
	* import/strstr.c (__builtin_expect): Update.
	* import/strtok_r.c: Update.
	* import/sys_socket.in.h (CMSG_SPACE): Update.
	(CMSG_LEN): Update.
	(struct sockaddr_storage): Update.
	(SO_REUSEPORT): Update.
	(_GL_WARN_ON_USE): Update.
	* import/sys_stat.in.h (if): Update.
	(stat): Update.
	(struct stat): Update.
	(st_atime): Update.
	(st_mtime): Update.
	(st_ctime): Update.
	(_GL_WINDOWS_STAT_TIMESPEC): Update.
	(GNULIB_defined_struct_stat): Update.
	(_S_IFBLK): Update.
	(_S_IFLNK): Update.
	(_S_IFSOCK): Update.
	(fstat): Update.
	(fstatat): Update.
	(lstat): Update.
	(stat64): Update.
	(_stat64): Update.
	(_stat32i64): Update.
	(_stati64): Update.
	(_stat32): Update.
	(_stat64i32): Update.
	* import/sys_time.in.h: Update.
	* import/sys_types.in.h (dev_t): Update.
	(GNULIB_defined_dev_t): Update.
	(ino_t): Update.
	(GNULIB_defined_ino_t): Update.
	(_GL_WINDOWS_STAT_INODES): Update.
	(if): Update.
	* import/sys_uio.in.h: Update.
	* import/tempname.c (__secure_getenv): Update.
	(try_nocreate): Update.
	* import/tempname.h: Update.
	* import/time.in.h (tzset): Update.
	(_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(_GL_FUNCDECL_SYS): Update.
	(_GL_CXXALIAS_SYS): Update.
	(_GL_CXXALIASWARN): Update.
	(ctime): Update.
	(strftime): Update.
	* import/time_r.c: Update.
	* import/unistd--.h: Update.
	* import/unistd-safer.h: Update.
	* import/unistd.in.h (if): Update.
	(elif): Update.
	(__need_getopt): Update.
	(access): Update.
	(_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(_GL_CXXALIAS_SYS): Update.
	(_GL_CXXALIASWARN): Update.
	(_GL_WARN_ON_USE): Update.
	(_GL_FUNCDECL_SYS): Update.
	(__declspec): Update.
	(_GL_WARN_ON_USE_ATTRIBUTE): Update.
	(faccessat): Update.
	(getpass): Update.
	(truncate): Update.
	* import/unsetenv.c: Update.
	* import/verify.h (if): Update.
	(_GL_HAVE__STATIC_ASSERT): Update.
	(_GL_HAVE_STATIC_ASSERT): Update.
	(_GL_HAVE__STATIC_ASSERT1): Update.
	(_GL_HAVE_STATIC_ASSERT1): Update.
	(_GL_VERIFY): Update.
	(_Static_assert): Update.
	(_GL_HAS_BUILTIN_TRAP): Update.
	(_GL_HAS_BUILTIN_UNREACHABLE): Update.
	(verify_true): Update.
	(verify): Update.
	(__has_builtin): Update.
	(elif): Update.
	(assume): Update.
	* import/warn-on-use.h: Rename from import/extra/snippet/warn-on-use.h.
	* import/wchar.in.h (if): Update.
	(wcsftime): Update.
	(_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(_GL_FUNCDECL_SYS): Update.
	(_GL_CXXALIAS_SYS): Update.
	(_GL_CXXALIASWARN): Update.
	(_GL_WARN_ON_USE): Update.
	* import/wctype.in.h (rpl_iswalnum): Update.
	(rpl_iswalpha): Update.
	(rpl_iswblank): Update.
	(rpl_iswcntrl): Update.
	(rpl_iswdigit): Update.
	(rpl_iswgraph): Update.
	(rpl_iswlower): Update.
	(rpl_iswprint): Update.
	(rpl_iswpunct): Update.
	(rpl_iswspace): Update.
	(rpl_iswupper): Update.
	(rpl_iswxdigit): Update.
	(rpl_towlower): Update.
	(rpl_towupper): Update.
	(iswalnum): Update.
	(iswalpha): Update.
	(iswblank): Update.
	(iswcntrl): Update.
	(iswdigit): Update.
	(iswgraph): Update.
	(iswlower): Update.
	(iswprint): Update.
	(iswpunct): Update.
	(iswspace): Update.
	(iswupper): Update.
	(iswxdigit): Update.
	(towlower): Update.
	(towupper): Update.
	* import/windows-initguard.h: New file.
	* import/windows-mutex.c: New file.
	* import/windows-mutex.h: New file.
	* import/windows-once.c: New file.
	* import/windows-once.h: New file.
	* import/windows-recmutex.c: New file.
	* import/windows-recmutex.h: New file.
	* import/windows-rwlock.c: New file.
	* import/windows-rwlock.h: New file.
	* import/xalloc-oversized.h: New file.
	* patches/0001-Fix-PR-gdb-23558-Use-system-s-getcwd-when-cross-comp.patch: Remove.
	* patches/0002-mkostemp-mkostemps-Fix-compilation-error-in-C-mode-o.patch: Remove.
	* patches/0003-Fix-glob-c-Coverity-issues.patch: Remove.
	* update-gnulib.sh: Update to latest gnulib and don't apply patches
	anymore.  Also updates the patch -p flag to the current directory structure in
	case patches are needed again in the future.

Change-Id: I9c2b07a3046baecfb664e21b2644353ea888dbfa

1 files changed, 127 insertions, 25 deletions

diff --git a/gnulib/import/wchar.in.h b/gnulib/import/wchar.in.h
index 75fb9f0..cc0594c 100644
--- a/gnulib/import/wchar.in.h
+++ b/gnulib/import/wchar.in.h
@@ -1,6 +1,6 @@
 /* A substitute for ISO C99 <wchar.h>, for platforms that have issues.
 
-   Copyright (C) 2007-2016 Free Software Foundation, Inc.
+   Copyright (C) 2007-2019 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -13,13 +13,13 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
+   along with this program; if not, see <https://www.gnu.org/licenses/>.  */
 
 /* Written by Eric Blake.  */
 
 /*
  * ISO C 99 <wchar.h> for platforms that have issues.
- * <http://www.opengroup.org/susv3xbd/wchar.h.html>
+ * <https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/wchar.h.html>
  *
  * For now, this just ensures proper prerequisite inclusion order and
  * the declaration of wcwidth().
@@ -31,7 +31,7 @@
 @PRAGMA_COLUMNS@
 
 #if (((defined __need_mbstate_t || defined __need_wint_t)               \
-      && !defined __MINGW32__ && !defined __KLIBC__)                    \
+      && !defined __MINGW32__)                                          \
      || (defined __hpux                                                 \
          && ((defined _INTTYPES_INCLUDED && !defined strtoimax)         \
              || defined _GL_JUST_INCLUDE_SYSTEM_WCHAR_H))               \
@@ -113,12 +113,16 @@
 #  define WEOF -1
 # endif
 #else
-/* MSVC defines wint_t as 'unsigned short' in <crtdefs.h>.
-   This is too small: ISO C 99 section 7.24.1.(2) says that wint_t must be
-   "unchanged by default argument promotions".  Override it.  */
-# if defined _MSC_VER
+/* mingw and MSVC define wint_t as 'unsigned short' in <crtdefs.h> or
+   <stddef.h>.  This is too small: ISO C 99 section 7.24.1.(2) says that
+   wint_t must be "unchanged by default argument promotions".  Override it.  */
+# if @GNULIB_OVERRIDES_WINT_T@
 #  if !GNULIB_defined_wint_t
-#   include <crtdefs.h>
+#   if @HAVE_CRTDEFS_H@
+#    include <crtdefs.h>
+#   else
+#    include <stddef.h>
+#   endif
 typedef unsigned int rpl_wint_t;
 #   undef wint_t
 #   define wint_t rpl_wint_t
@@ -133,8 +137,11 @@ typedef unsigned int rpl_wint_t;
 
 /* Override mbstate_t if it is too small.
    On IRIX 6.5, sizeof (mbstate_t) == 1, which is not sufficient for
-   implementing mbrtowc for encodings like UTF-8.  */
-#if !(@HAVE_MBSINIT@ && @HAVE_MBRTOWC@) || @REPLACE_MBSTATE_T@
+   implementing mbrtowc for encodings like UTF-8.
+   On AIX and MSVC, mbrtowc needs to be overridden, but mbstate_t exists and is
+   large enough and overriding it would cause problems in C++ mode.  */
+#if (!(@HAVE_MBSINIT@ && @HAVE_MBRTOWC@) || @REPLACE_MBSTATE_T@) \
+    && !(defined _AIX || defined _MSC_VER)
 # if !GNULIB_defined_mbstate_t
 typedef int rpl_mbstate_t;
 #  undef mbstate_t
@@ -157,9 +164,12 @@ _GL_CXXALIAS_RPL (btowc, wint_t, (int c));
 #  if !@HAVE_BTOWC@
 _GL_FUNCDECL_SYS (btowc, wint_t, (int c) _GL_ATTRIBUTE_PURE);
 #  endif
-_GL_CXXALIAS_SYS (btowc, wint_t, (int c));
+/* Need to cast, because on mingw, the return type is 'unsigned short'.  */
+_GL_CXXALIAS_SYS_CAST (btowc, wint_t, (int c));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (btowc);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef btowc
 # if HAVE_RAW_DECL_BTOWC
@@ -185,7 +195,9 @@ _GL_FUNCDECL_SYS (wctob, int, (wint_t wc) _GL_ATTRIBUTE_PURE);
 #  endif
 _GL_CXXALIAS_SYS (wctob, int, (wint_t wc));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wctob);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wctob
 # if HAVE_RAW_DECL_WCTOB
@@ -210,7 +222,9 @@ _GL_FUNCDECL_SYS (mbsinit, int, (const mbstate_t *ps));
 #  endif
 _GL_CXXALIAS_SYS (mbsinit, int, (const mbstate_t *ps));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (mbsinit);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef mbsinit
 # if HAVE_RAW_DECL_MBSINIT
@@ -239,7 +253,9 @@ _GL_FUNCDECL_SYS (mbrtowc, size_t,
 _GL_CXXALIAS_SYS (mbrtowc, size_t,
                   (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (mbrtowc);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef mbrtowc
 # if HAVE_RAW_DECL_MBRTOWC
@@ -264,7 +280,9 @@ _GL_FUNCDECL_SYS (mbrlen, size_t, (const char *s, size_t n, mbstate_t *ps));
 #  endif
 _GL_CXXALIAS_SYS (mbrlen, size_t, (const char *s, size_t n, mbstate_t *ps));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (mbrlen);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef mbrlen
 # if HAVE_RAW_DECL_MBRLEN
@@ -297,7 +315,9 @@ _GL_CXXALIAS_SYS (mbsrtowcs, size_t,
                   (wchar_t *dest, const char **srcp, size_t len,
                    mbstate_t *ps));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (mbsrtowcs);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef mbsrtowcs
 # if HAVE_RAW_DECL_MBSRTOWCS
@@ -357,7 +377,9 @@ _GL_FUNCDECL_SYS (wcrtomb, size_t, (char *s, wchar_t wc, mbstate_t *ps));
 #  endif
 _GL_CXXALIAS_SYS (wcrtomb, size_t, (char *s, wchar_t wc, mbstate_t *ps));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcrtomb);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcrtomb
 # if HAVE_RAW_DECL_WCRTOMB
@@ -390,7 +412,9 @@ _GL_CXXALIAS_SYS (wcsrtombs, size_t,
                   (char *dest, const wchar_t **srcp, size_t len,
                    mbstate_t *ps));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcsrtombs);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcsrtombs
 # if HAVE_RAW_DECL_WCSRTOMBS
@@ -415,7 +439,7 @@ _GL_CXXALIAS_RPL (wcsnrtombs, size_t,
                   (char *dest, const wchar_t **srcp, size_t srclen, size_t len,
                    mbstate_t *ps));
 # else
-#  if !@HAVE_WCSNRTOMBS@
+#  if !@HAVE_WCSNRTOMBS@ || (defined __cplusplus && defined __sun)
 _GL_FUNCDECL_SYS (wcsnrtombs, size_t,
                   (char *dest, const wchar_t **srcp, size_t srclen, size_t len,
                    mbstate_t *ps)
@@ -425,7 +449,9 @@ _GL_CXXALIAS_SYS (wcsnrtombs, size_t,
                   (char *dest, const wchar_t **srcp, size_t srclen, size_t len,
                    mbstate_t *ps));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcsnrtombs);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcsnrtombs
 # if HAVE_RAW_DECL_WCSNRTOMBS
@@ -448,15 +474,12 @@ _GL_CXXALIAS_RPL (wcwidth, int, (wchar_t));
 #  if !@HAVE_DECL_WCWIDTH@
 /* wcwidth exists but is not declared.  */
 _GL_FUNCDECL_SYS (wcwidth, int, (wchar_t) _GL_ATTRIBUTE_PURE);
-#  elif defined __KLIBC__
-/* On OS/2 kLIBC, wcwidth is a macro that expands to the name of a
-   static inline function.  The implementation of wcwidth in wcwidth.c
-   causes a "conflicting types" error. */
-#   undef wcwidth
 #  endif
 _GL_CXXALIAS_SYS (wcwidth, int, (wchar_t));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcwidth);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcwidth
 # if HAVE_RAW_DECL_WCWIDTH
@@ -485,7 +508,7 @@ _GL_CXXALIAS_SYS_CAST2 (wmemchr,
 _GL_CXXALIASWARN1 (wmemchr, wchar_t *, (wchar_t *s, wchar_t c, size_t n));
 _GL_CXXALIASWARN1 (wmemchr, const wchar_t *,
                    (const wchar_t *s, wchar_t c, size_t n));
-# else
+# elif __GLIBC__ >= 2
 _GL_CXXALIASWARN (wmemchr);
 # endif
 #elif defined GNULIB_POSIXCHECK
@@ -506,7 +529,9 @@ _GL_FUNCDECL_SYS (wmemcmp, int,
 # endif
 _GL_CXXALIAS_SYS (wmemcmp, int,
                   (const wchar_t *s1, const wchar_t *s2, size_t n));
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wmemcmp);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wmemcmp
 # if HAVE_RAW_DECL_WMEMCMP
@@ -524,7 +549,9 @@ _GL_FUNCDECL_SYS (wmemcpy, wchar_t *,
 # endif
 _GL_CXXALIAS_SYS (wmemcpy, wchar_t *,
                   (wchar_t *dest, const wchar_t *src, size_t n));
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wmemcpy);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wmemcpy
 # if HAVE_RAW_DECL_WMEMCPY
@@ -543,7 +570,9 @@ _GL_FUNCDECL_SYS (wmemmove, wchar_t *,
 # endif
 _GL_CXXALIAS_SYS (wmemmove, wchar_t *,
                   (wchar_t *dest, const wchar_t *src, size_t n));
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wmemmove);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wmemmove
 # if HAVE_RAW_DECL_WMEMMOVE
@@ -559,7 +588,9 @@ _GL_WARN_ON_USE (wmemmove, "wmemmove is unportable - "
 _GL_FUNCDECL_SYS (wmemset, wchar_t *, (wchar_t *s, wchar_t c, size_t n));
 # endif
 _GL_CXXALIAS_SYS (wmemset, wchar_t *, (wchar_t *s, wchar_t c, size_t n));
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wmemset);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wmemset
 # if HAVE_RAW_DECL_WMEMSET
@@ -575,7 +606,9 @@ _GL_WARN_ON_USE (wmemset, "wmemset is unportable - "
 _GL_FUNCDECL_SYS (wcslen, size_t, (const wchar_t *s) _GL_ATTRIBUTE_PURE);
 # endif
 _GL_CXXALIAS_SYS (wcslen, size_t, (const wchar_t *s));
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcslen);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcslen
 # if HAVE_RAW_DECL_WCSLEN
@@ -608,7 +641,9 @@ _GL_WARN_ON_USE (wcsnlen, "wcsnlen is unportable - "
 _GL_FUNCDECL_SYS (wcscpy, wchar_t *, (wchar_t *dest, const wchar_t *src));
 # endif
 _GL_CXXALIAS_SYS (wcscpy, wchar_t *, (wchar_t *dest, const wchar_t *src));
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcscpy);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcscpy
 # if HAVE_RAW_DECL_WCSCPY
@@ -642,7 +677,9 @@ _GL_FUNCDECL_SYS (wcsncpy, wchar_t *,
 # endif
 _GL_CXXALIAS_SYS (wcsncpy, wchar_t *,
                   (wchar_t *dest, const wchar_t *src, size_t n));
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcsncpy);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcsncpy
 # if HAVE_RAW_DECL_WCSNCPY
@@ -677,7 +714,9 @@ _GL_WARN_ON_USE (wcpncpy, "wcpncpy is unportable - "
 _GL_FUNCDECL_SYS (wcscat, wchar_t *, (wchar_t *dest, const wchar_t *src));
 # endif
 _GL_CXXALIAS_SYS (wcscat, wchar_t *, (wchar_t *dest, const wchar_t *src));
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcscat);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcscat
 # if HAVE_RAW_DECL_WCSCAT
@@ -695,7 +734,9 @@ _GL_FUNCDECL_SYS (wcsncat, wchar_t *,
 # endif
 _GL_CXXALIAS_SYS (wcsncat, wchar_t *,
                   (wchar_t *dest, const wchar_t *src, size_t n));
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcsncat);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcsncat
 # if HAVE_RAW_DECL_WCSNCAT
@@ -712,7 +753,9 @@ _GL_FUNCDECL_SYS (wcscmp, int, (const wchar_t *s1, const wchar_t *s2)
                                _GL_ATTRIBUTE_PURE);
 # endif
 _GL_CXXALIAS_SYS (wcscmp, int, (const wchar_t *s1, const wchar_t *s2));
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcscmp);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcscmp
 # if HAVE_RAW_DECL_WCSCMP
@@ -731,7 +774,9 @@ _GL_FUNCDECL_SYS (wcsncmp, int,
 # endif
 _GL_CXXALIAS_SYS (wcsncmp, int,
                   (const wchar_t *s1, const wchar_t *s2, size_t n));
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcsncmp);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcsncmp
 # if HAVE_RAW_DECL_WCSNCMP
@@ -784,7 +829,9 @@ _GL_WARN_ON_USE (wcsncasecmp, "wcsncasecmp is unportable - "
 _GL_FUNCDECL_SYS (wcscoll, int, (const wchar_t *s1, const wchar_t *s2));
 # endif
 _GL_CXXALIAS_SYS (wcscoll, int, (const wchar_t *s1, const wchar_t *s2));
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcscoll);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcscoll
 # if HAVE_RAW_DECL_WCSCOLL
@@ -802,7 +849,9 @@ _GL_WARN_ON_USE (wcscoll, "wcscoll is unportable - "
 _GL_FUNCDECL_SYS (wcsxfrm, size_t, (wchar_t *s1, const wchar_t *s2, size_t n));
 # endif
 _GL_CXXALIAS_SYS (wcsxfrm, size_t, (wchar_t *s1, const wchar_t *s2, size_t n));
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcsxfrm);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcsxfrm
 # if HAVE_RAW_DECL_WCSXFRM
@@ -846,7 +895,7 @@ _GL_CXXALIAS_SYS_CAST2 (wcschr,
      && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
 _GL_CXXALIASWARN1 (wcschr, wchar_t *, (wchar_t *wcs, wchar_t wc));
 _GL_CXXALIASWARN1 (wcschr, const wchar_t *, (const wchar_t *wcs, wchar_t wc));
-# else
+# elif __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcschr);
 # endif
 #elif defined GNULIB_POSIXCHECK
@@ -876,7 +925,7 @@ _GL_CXXALIAS_SYS_CAST2 (wcsrchr,
      && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
 _GL_CXXALIASWARN1 (wcsrchr, wchar_t *, (wchar_t *wcs, wchar_t wc));
 _GL_CXXALIASWARN1 (wcsrchr, const wchar_t *, (const wchar_t *wcs, wchar_t wc));
-# else
+# elif __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcsrchr);
 # endif
 #elif defined GNULIB_POSIXCHECK
@@ -896,7 +945,9 @@ _GL_FUNCDECL_SYS (wcscspn, size_t, (const wchar_t *wcs, const wchar_t *reject)
                                    _GL_ATTRIBUTE_PURE);
 # endif
 _GL_CXXALIAS_SYS (wcscspn, size_t, (const wchar_t *wcs, const wchar_t *reject));
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcscspn);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcscspn
 # if HAVE_RAW_DECL_WCSCSPN
@@ -914,7 +965,9 @@ _GL_FUNCDECL_SYS (wcsspn, size_t, (const wchar_t *wcs, const wchar_t *accept)
                                   _GL_ATTRIBUTE_PURE);
 # endif
 _GL_CXXALIAS_SYS (wcsspn, size_t, (const wchar_t *wcs, const wchar_t *accept));
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcsspn);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcsspn
 # if HAVE_RAW_DECL_WCSSPN
@@ -945,7 +998,7 @@ _GL_CXXALIASWARN1 (wcspbrk, wchar_t *,
                    (wchar_t *wcs, const wchar_t *accept));
 _GL_CXXALIASWARN1 (wcspbrk, const wchar_t *,
                    (const wchar_t *wcs, const wchar_t *accept));
-# else
+# elif __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcspbrk);
 # endif
 #elif defined GNULIB_POSIXCHECK
@@ -978,7 +1031,7 @@ _GL_CXXALIASWARN1 (wcsstr, wchar_t *,
                    (wchar_t *haystack, const wchar_t *needle));
 _GL_CXXALIASWARN1 (wcsstr, const wchar_t *,
                    (const wchar_t *haystack, const wchar_t *needle));
-# else
+# elif __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcsstr);
 # endif
 #elif defined GNULIB_POSIXCHECK
@@ -992,13 +1045,26 @@ _GL_WARN_ON_USE (wcsstr, "wcsstr is unportable - "
 
 /* Divide WCS into tokens separated by characters in DELIM.  */
 #if @GNULIB_WCSTOK@
-# if !@HAVE_WCSTOK@
+# if @REPLACE_WCSTOK@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef wcstok
+#   define wcstok rpl_wcstok
+#  endif
+_GL_FUNCDECL_RPL (wcstok, wchar_t *,
+                  (wchar_t *wcs, const wchar_t *delim, wchar_t **ptr));
+_GL_CXXALIAS_RPL (wcstok, wchar_t *,
+                  (wchar_t *wcs, const wchar_t *delim, wchar_t **ptr));
+# else
+#  if !@HAVE_WCSTOK@
 _GL_FUNCDECL_SYS (wcstok, wchar_t *,
                   (wchar_t *wcs, const wchar_t *delim, wchar_t **ptr));
-# endif
+#  endif
 _GL_CXXALIAS_SYS (wcstok, wchar_t *,
                   (wchar_t *wcs, const wchar_t *delim, wchar_t **ptr));
+# endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcstok);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcstok
 # if HAVE_RAW_DECL_WCSTOK
@@ -1026,7 +1092,9 @@ _GL_FUNCDECL_SYS (wcswidth, int, (const wchar_t *s, size_t n)
 #  endif
 _GL_CXXALIAS_SYS (wcswidth, int, (const wchar_t *s, size_t n));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wcswidth);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef wcswidth
 # if HAVE_RAW_DECL_WCSWIDTH
@@ -1036,6 +1104,40 @@ _GL_WARN_ON_USE (wcswidth, "wcswidth is unportable - "
 #endif
 
 
+/* Convert *TP to a date and time wide string.  See
+   <https://pubs.opengroup.org/onlinepubs/9699919799/functions/wcsftime.html>.  */
+#if @GNULIB_WCSFTIME@
+# if @REPLACE_WCSFTIME@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef wcsftime
+#   define wcsftime rpl_wcsftime
+#  endif
+_GL_FUNCDECL_RPL (wcsftime, size_t, (wchar_t *__buf, size_t __bufsize,
+                                     const wchar_t *__fmt, const struct tm *__tp)
+                                    _GL_ARG_NONNULL ((1, 3, 4)));
+_GL_CXXALIAS_RPL (wcsftime, size_t, (wchar_t *__buf, size_t __bufsize,
+                                     const wchar_t *__fmt, const struct tm *__tp));
+# else
+#  if !@HAVE_WCSFTIME@
+_GL_FUNCDECL_SYS (wcsftime, size_t, (wchar_t *__buf, size_t __bufsize,
+                                     const wchar_t *__fmt, const struct tm *__tp)
+                                    _GL_ARG_NONNULL ((1, 3, 4)));
+#  endif
+_GL_CXXALIAS_SYS (wcsftime, size_t, (wchar_t *__buf, size_t __bufsize,
+                                     const wchar_t *__fmt, const struct tm *__tp));
+# endif
+# if __GLIBC__ >= 2
+_GL_CXXALIASWARN (wcsftime);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef wcsftime
+# if HAVE_RAW_DECL_WCSFTIME
+_GL_WARN_ON_USE (wcsftime, "wcsftime is unportable - "
+                 "use gnulib module wcsftime for portability");
+# endif
+#endif
+
+
 #endif /* _@GUARD_PREFIX@_WCHAR_H */
 #endif /* _@GUARD_PREFIX@_WCHAR_H */
 #endif