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, 141 insertions, 22 deletions

diff --git a/gnulib/import/stdlib.in.h b/gnulib/import/stdlib.in.h
index 8f803a2..5edae2c 100644
--- a/gnulib/import/stdlib.in.h
+++ b/gnulib/import/stdlib.in.h
@@ -1,6 +1,6 @@
 /* A GNU-like <stdlib.h>.
 
-   Copyright (C) 1995, 2001-2004, 2006-2016 Free Software Foundation, Inc.
+   Copyright (C) 1995, 2001-2004, 2006-2019 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
@@ -13,7 +13,7 @@
    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/>.  */
 
 #if __GNUC__ >= 3
 @PRAGMA_SYSTEM_HEADER@
@@ -47,11 +47,14 @@
 
 /* Solaris declares getloadavg() in <sys/loadavg.h>.  */
 #if (@GNULIB_GETLOADAVG@ || defined GNULIB_POSIXCHECK) && @HAVE_SYS_LOADAVG_H@
+/* OpenIndiana has a bug: <sys/time.h> must be included before
+   <sys/loadavg.h>.  */
+# include <sys/time.h>
 # include <sys/loadavg.h>
 #endif
 
 /* Native Windows platforms declare mktemp() in <io.h>.  */
-#if 0 && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
+#if 0 && (defined _WIN32 && ! defined __CYGWIN__)
 # include <io.h>
 #endif
 
@@ -87,7 +90,7 @@ struct random_data
 # endif
 #endif
 
-#if (@GNULIB_MKSTEMP@ || @GNULIB_MKSTEMPS@ || @GNULIB_MKOSTEMP@ || @GNULIB_MKOSTEMPS@ || @GNULIB_GETSUBOPT@ || defined GNULIB_POSIXCHECK) && ! defined __GLIBC__ && !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
+#if (@GNULIB_MKSTEMP@ || @GNULIB_MKSTEMPS@ || @GNULIB_MKOSTEMP@ || @GNULIB_MKOSTEMPS@ || @GNULIB_GETSUBOPT@ || defined GNULIB_POSIXCHECK) && ! defined __GLIBC__ && !(defined _WIN32 && ! defined __CYGWIN__)
 /* On Mac OS X 10.3, only <unistd.h> declares mkstemp.  */
 /* On Mac OS X 10.5, only <unistd.h> declares mkstemps.  */
 /* On Mac OS X 10.13, only <unistd.h> declares mkostemp and mkostemps.  */
@@ -173,7 +176,9 @@ _GL_CXXALIAS_RPL (calloc, void *, (size_t nmemb, size_t size));
 # else
 _GL_CXXALIAS_SYS (calloc, void *, (size_t nmemb, size_t size));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (calloc);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef calloc
 /* Assume calloc is always declared.  */
@@ -235,8 +240,8 @@ _GL_WARN_ON_USE (getloadavg, "getloadavg is not portable - "
        element (or NULL if it doesn't contain an "=" sign),
      - It returns the index of the "token" in the given array of tokens.
    Otherwise it returns -1, and *OPTIONP and *VALUEP are undefined.
-   For more details see the POSIX:2001 specification.
-   http://www.opengroup.org/susv3xsh/getsubopt.html */
+   For more details see the POSIX specification.
+   https://pubs.opengroup.org/onlinepubs/9699919799/functions/getsubopt.html */
 # if !@HAVE_GETSUBOPT@
 _GL_FUNCDECL_SYS (getsubopt, int,
                   (char **optionp, char *const *tokens, char **valuep)
@@ -285,7 +290,9 @@ _GL_CXXALIAS_RPL (malloc, void *, (size_t size));
 # else
 _GL_CXXALIAS_SYS (malloc, void *, (size_t size));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (malloc);
+# endif
 #elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
 # undef malloc
 /* Assume malloc is always declared.  */
@@ -303,9 +310,20 @@ _GL_WARN_ON_USE (malloc, "malloc is not POSIX compliant everywhere - "
 _GL_FUNCDECL_RPL (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
 _GL_CXXALIAS_RPL (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
 # else
+#  if !@HAVE_MBTOWC@
+_GL_FUNCDECL_SYS (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
+#  endif
 _GL_CXXALIAS_SYS (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (mbtowc);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef mbtowc
+# if HAVE_RAW_DECL_MBTOWC
+_GL_WARN_ON_USE (mbtowc, "mbtowc is not portable - "
+                 "use gnulib module mbtowc for portability");
+# endif
 #endif
 
 #if @GNULIB_MKDTEMP@
@@ -570,10 +588,21 @@ _GL_WARN_ON_USE (qsort_r, "qsort_r is not portable - "
 
 
 #if @GNULIB_RANDOM@
-# if !@HAVE_RANDOM@
+# if @REPLACE_RANDOM@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef random
+#   define random rpl_random
+#  endif
+_GL_FUNCDECL_RPL (random, long, (void));
+_GL_CXXALIAS_RPL (random, long, (void));
+# else
+#  if !@HAVE_RANDOM@
 _GL_FUNCDECL_SYS (random, long, (void));
+#  endif
+/* Need to cast, because on Haiku, the return type is
+                               int.  */
+_GL_CXXALIAS_SYS_CAST (random, long, (void));
 # endif
-_GL_CXXALIAS_SYS (random, long, (void));
 _GL_CXXALIASWARN (random);
 #elif defined GNULIB_POSIXCHECK
 # undef random
@@ -584,10 +613,21 @@ _GL_WARN_ON_USE (random, "random is unportable - "
 #endif
 
 #if @GNULIB_RANDOM@
-# if !@HAVE_RANDOM@
+# if @REPLACE_RANDOM@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef srandom
+#   define srandom rpl_srandom
+#  endif
+_GL_FUNCDECL_RPL (srandom, void, (unsigned int seed));
+_GL_CXXALIAS_RPL (srandom, void, (unsigned int seed));
+# else
+#  if !@HAVE_RANDOM@
 _GL_FUNCDECL_SYS (srandom, void, (unsigned int seed));
+#  endif
+/* Need to cast, because on FreeBSD, the first parameter is
+                                       unsigned long seed.  */
+_GL_CXXALIAS_SYS_CAST (srandom, void, (unsigned int seed));
 # endif
-_GL_CXXALIAS_SYS (srandom, void, (unsigned int seed));
 _GL_CXXALIASWARN (srandom);
 #elif defined GNULIB_POSIXCHECK
 # undef srandom
@@ -598,31 +638,56 @@ _GL_WARN_ON_USE (srandom, "srandom is unportable - "
 #endif
 
 #if @GNULIB_RANDOM@
-# if !@HAVE_RANDOM@
+# if @REPLACE_INITSTATE@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef initstate
+#   define initstate rpl_initstate
+#  endif
+_GL_FUNCDECL_RPL (initstate, char *,
+                  (unsigned int seed, char *buf, size_t buf_size)
+                  _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (initstate, char *,
+                  (unsigned int seed, char *buf, size_t buf_size));
+# else
+#  if !@HAVE_INITSTATE@ || !@HAVE_DECL_INITSTATE@
 _GL_FUNCDECL_SYS (initstate, char *,
                   (unsigned int seed, char *buf, size_t buf_size)
                   _GL_ARG_NONNULL ((2)));
+#  endif
+/* Need to cast, because on FreeBSD, the first parameter is
+                        unsigned long seed.  */
+_GL_CXXALIAS_SYS_CAST (initstate, char *,
+                       (unsigned int seed, char *buf, size_t buf_size));
 # endif
-_GL_CXXALIAS_SYS (initstate, char *,
-                  (unsigned int seed, char *buf, size_t buf_size));
 _GL_CXXALIASWARN (initstate);
 #elif defined GNULIB_POSIXCHECK
 # undef initstate
-# if HAVE_RAW_DECL_INITSTATE_R
+# if HAVE_RAW_DECL_INITSTATE
 _GL_WARN_ON_USE (initstate, "initstate is unportable - "
                  "use gnulib module random for portability");
 # endif
 #endif
 
 #if @GNULIB_RANDOM@
-# if !@HAVE_RANDOM@
+# if @REPLACE_SETSTATE@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef setstate
+#   define setstate rpl_setstate
+#  endif
+_GL_FUNCDECL_RPL (setstate, char *, (char *arg_state) _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (setstate, char *, (char *arg_state));
+# else
+#  if !@HAVE_SETSTATE@ || !@HAVE_DECL_SETSTATE@
 _GL_FUNCDECL_SYS (setstate, char *, (char *arg_state) _GL_ARG_NONNULL ((1)));
+#  endif
+/* Need to cast, because on Mac OS X 10.13, HP-UX, Solaris the first parameter
+   is                                     const char *arg_state.  */
+_GL_CXXALIAS_SYS_CAST (setstate, char *, (char *arg_state));
 # endif
-_GL_CXXALIAS_SYS (setstate, char *, (char *arg_state));
 _GL_CXXALIASWARN (setstate);
 #elif defined GNULIB_POSIXCHECK
 # undef setstate
-# if HAVE_RAW_DECL_SETSTATE_R
+# if HAVE_RAW_DECL_SETSTATE
 _GL_WARN_ON_USE (setstate, "setstate is unportable - "
                  "use gnulib module random for portability");
 # endif
@@ -703,9 +768,11 @@ _GL_FUNCDECL_SYS (initstate_r, int,
                    struct random_data *rand_state)
                   _GL_ARG_NONNULL ((2, 4)));
 #  endif
-_GL_CXXALIAS_SYS (initstate_r, int,
-                  (unsigned int seed, char *buf, size_t buf_size,
-                   struct random_data *rand_state));
+/* Need to cast, because on Haiku, the third parameter is
+                                                     unsigned long buf_size.  */
+_GL_CXXALIAS_SYS_CAST (initstate_r, int,
+                       (unsigned int seed, char *buf, size_t buf_size,
+                        struct random_data *rand_state));
 # endif
 _GL_CXXALIASWARN (initstate_r);
 #elif defined GNULIB_POSIXCHECK
@@ -733,8 +800,10 @@ _GL_FUNCDECL_SYS (setstate_r, int,
                   (char *arg_state, struct random_data *rand_state)
                   _GL_ARG_NONNULL ((1, 2)));
 #  endif
-_GL_CXXALIAS_SYS (setstate_r, int,
-                  (char *arg_state, struct random_data *rand_state));
+/* Need to cast, because on Haiku, the first parameter is
+                        void *arg_state.  */
+_GL_CXXALIAS_SYS_CAST (setstate_r, int,
+                       (char *arg_state, struct random_data *rand_state));
 # endif
 _GL_CXXALIASWARN (setstate_r);
 #elif defined GNULIB_POSIXCHECK
@@ -758,7 +827,9 @@ _GL_CXXALIAS_RPL (realloc, void *, (void *ptr, size_t size));
 # else
 _GL_CXXALIAS_SYS (realloc, void *, (void *ptr, size_t size));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (realloc);
+# endif
 #elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
 # undef realloc
 /* Assume realloc is always declared.  */
@@ -766,6 +837,23 @@ _GL_WARN_ON_USE (realloc, "realloc is not POSIX compliant everywhere - "
                  "use gnulib module realloc-posix for portability");
 #endif
 
+
+#if @GNULIB_REALLOCARRAY@
+# if ! @HAVE_REALLOCARRAY@
+_GL_FUNCDECL_SYS (reallocarray, void *,
+                  (void *ptr, size_t nmemb, size_t size));
+# endif
+_GL_CXXALIAS_SYS (reallocarray, void *,
+                  (void *ptr, size_t nmemb, size_t size));
+_GL_CXXALIASWARN (reallocarray);
+#elif defined GNULIB_POSIXCHECK
+# undef reallocarray
+# if HAVE_RAW_DECL_REALLOCARRAY
+_GL_WARN_ON_USE (reallocarray, "reallocarray is not portable - "
+                 "use gnulib module reallocarray for portability");
+# endif
+#endif
+
 #if @GNULIB_REALPATH@
 # if @REPLACE_REALPATH@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
@@ -861,6 +949,7 @@ _GL_WARN_ON_USE (setenv, "setenv is unportable - "
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   define strtod rpl_strtod
 #  endif
+#  define GNULIB_defined_strtod_function 1
 _GL_FUNCDECL_RPL (strtod, double, (const char *str, char **endp)
                                   _GL_ARG_NONNULL ((1)));
 _GL_CXXALIAS_RPL (strtod, double, (const char *str, char **endp));
@@ -871,7 +960,9 @@ _GL_FUNCDECL_SYS (strtod, double, (const char *str, char **endp)
 #  endif
 _GL_CXXALIAS_SYS (strtod, double, (const char *str, char **endp));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (strtod);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef strtod
 # if HAVE_RAW_DECL_STRTOD
@@ -880,6 +971,32 @@ _GL_WARN_ON_USE (strtod, "strtod is unportable - "
 # endif
 #endif
 
+#if @GNULIB_STRTOLD@
+ /* Parse a 'long double' from STRING, updating ENDP if appropriate.  */
+# if @REPLACE_STRTOLD@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   define strtold rpl_strtold
+#  endif
+#  define GNULIB_defined_strtold_function 1
+_GL_FUNCDECL_RPL (strtold, long double, (const char *str, char **endp)
+                                        _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (strtold, long double, (const char *str, char **endp));
+# else
+#  if !@HAVE_STRTOLD@
+_GL_FUNCDECL_SYS (strtold, long double, (const char *str, char **endp)
+                                        _GL_ARG_NONNULL ((1)));
+#  endif
+_GL_CXXALIAS_SYS (strtold, long double, (const char *str, char **endp));
+# endif
+_GL_CXXALIASWARN (strtold);
+#elif defined GNULIB_POSIXCHECK
+# undef strtold
+# if HAVE_RAW_DECL_STRTOLD
+_GL_WARN_ON_USE (strtold, "strtold is unportable - "
+                 "use gnulib module strtold for portability");
+# endif
+#endif
+
 #if @GNULIB_STRTOLL@
 /* Parse a signed integer whose textual representation starts at STRING.
    The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
@@ -984,7 +1101,9 @@ _GL_CXXALIAS_RPL (wctomb, int, (char *s, wchar_t wc));
 # else
 _GL_CXXALIAS_SYS (wctomb, int, (char *s, wchar_t wc));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wctomb);
+# endif
 #endif