build: Update after gnulib changed.

* lib/Makefile.am (libunistring.sym): Don't rename the
gl_get_setlocale_null_lock function.
* NEWS: Document the fixed multithread-safety bugs:
  2019-12-18  Bruno Haible  <bruno@clisp.org>
      hard-locale: Make multithread-safe.
      This fix impacts mbrtowc on Cygwin and Haiku.
  2019-12-17  Bruno Haible  <bruno@clisp.org>
      localcharset: Fix multithread-safety bug on Windows and OS/2.

6 files changed, 189 insertions, 1 deletions

diff --git a/ChangeLog b/ChangeLog
index 88438d9..c52f289 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,17 @@
 2019-12-22  Bruno Haible  <bruno@clisp.org>
 
+	build: Update after gnulib changed.
+	* lib/Makefile.am (libunistring.sym): Don't rename the
+	gl_get_setlocale_null_lock function.
+	* NEWS: Document the fixed multithread-safety bugs:
+	  2019-12-18  Bruno Haible  <bruno@clisp.org>
+	      hard-locale: Make multithread-safe.
+	      This fix impacts mbrtowc on Cygwin and Haiku.
+	  2019-12-17  Bruno Haible  <bruno@clisp.org>
+	      localcharset: Fix multithread-safety bug on Windows and OS/2.
+
+2019-12-22  Bruno Haible  <bruno@clisp.org>
+
 	build: Fix spurious error message in 'doc'.
 	* doc/Makefile.am (RM): New variable.
 
diff --git a/NEWS b/NEWS
index 454821b..b2892b3 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,6 @@
+New in 0.9.11:
+* Fixed multithread-safety bugs on Cygwin, native Windows, and Haiku.
+
 New in 0.9.10:
 * The functions
     u8_casing_prefix_context, u8_casing_prefixes_context,
diff --git a/gnulib-m4/.gitignore b/gnulib-m4/.gitignore
index 419c058..4e2e159 100644
--- a/gnulib-m4/.gitignore
+++ b/gnulib-m4/.gitignore
@@ -2,13 +2,16 @@
 /00gnulib.m4
 /absolute-header.m4
 /alloca.m4
+/arpa_inet_h.m4
 /btowc.m4
 /builtin-expect.m4
+/close.m4
 /codeset.m4
 /configmake.m4
 /ctype.m4
 /dirname.m4
 /double-slash-root.m4
+/dup2.m4
 /eealloc.m4
 /environ.m4
 /errno_h.m4
@@ -19,6 +22,8 @@
 /extensions.m4
 /extern-inline.m4
 /fcntl-o.m4
+/fcntl.m4
+/fcntl_h.m4
 /fdopen.m4
 /flexmember.m4
 /float_h.m4
@@ -26,8 +31,13 @@
 /frexp.m4
 /frexpl.m4
 /fseterr.m4
+/fstat.m4
+/ftruncate.m4
+/getcwd.m4
+/getdtablesize.m4
 /getpagesize.m4
 /getprogname.m4
+/gettimeofday.m4
 /glibc21.m4
 /gnulib-common.m4
 /gnulib-comp.m4
@@ -38,6 +48,7 @@
 /iconv_h.m4
 /iconv_open.m4
 /include_next.m4
+/inet_pton.m4
 /inline.m4
 /intl-thread-locale.m4
 /intlmacosx.m4
@@ -45,12 +56,14 @@
 /inttypes-pri.m4
 /inttypes.m4
 /inttypes_h.m4
+/ioctl.m4
 /isblank.m4
 /isnand.m4
 /isnanf.m4
 /isnanl.m4
 /iswblank.m4
 /langinfo_h.m4
+/largefile.m4
 /lcmessage.m4
 /ldexpl.m4
 /lib-ld.m4
@@ -66,8 +79,10 @@
 /locale-zh.m4
 /locale_h.m4
 /localename.m4
+/localtime-buffer.m4
 /lock.m4
 /longlong.m4
+/lstat.m4
 /malloc.m4
 /malloca.m4
 /math_h.m4
@@ -80,27 +95,48 @@
 /memchr.m4
 /minmax.m4
 /mmap-anon.m4
+/mode_t.m4
 /msvc-inval.m4
 /msvc-nothrow.m4
 /multiarch.m4
+/nanosleep.m4
+/netinet_in_h.m4
 /nocrash.m4
 /off_t.m4
+/open-cloexec.m4
+/open-slash.m4
+/open.m4
+/pathmax.m4
+/perror.m4
+/pipe.m4
 /printf-frexp.m4
 /printf-frexpl.m4
 /printf.m4
+/pthread-thread.m4
+/pthread_h.m4
 /pthread_rwlock_rdlock.m4
 /pthread_sigmask.m4
 /putenv.m4
 /raise.m4
 /relocatable-lib.m4
+/sched_h.m4
+/select.m4
 /setenv.m4
 /setlocale.m4
+/setlocale_null.m4
+/sigaction.m4
 /signal_h.m4
 /signalblocking.m4
 /signbit.m4
 /size_max.m4
 /sleep.m4
+/socketlib.m4
+/sockets.m4
+/socklen.m4
+/sockpfaf.m4
 /ssize_t.m4
+/stat-time.m4
+/stat.m4
 /stdalign.m4
 /stdbool.m4
 /stddef_h.m4
@@ -109,11 +145,18 @@
 /stdio_h.m4
 /stdlib_h.m4
 /strerror.m4
+/strerror_r.m4
 /string_h.m4
 /strncat.m4
 /strstr.m4
+/symlink.m4
+/sys_ioctl_h.m4
+/sys_select_h.m4
 /sys_socket_h.m4
+/sys_stat_h.m4
+/sys_time_h.m4
 /sys_types_h.m4
+/sys_uio_h.m4
 /thread.m4
 /threadlib.m4
 /time_h.m4
diff --git a/lib/.gitignore b/lib/.gitignore
index 6a9f731..1b9e661 100644
--- a/lib/.gitignore
+++ b/lib/.gitignore
@@ -35,6 +35,7 @@
 /iconv_open-irix.gperf
 /iconv_open-osf.gperf
 /iconv_open-solaris.gperf
+/iconv_open-zos.gperf
 /iconv_open.c
 /iconveh.h
 /isnan.c
@@ -85,6 +86,8 @@
 /relocatable.c
 /relocatable.h
 /relocatable.valgrind
+/setlocale-lock.c
+/setlocale_null.c
 /signbitd.c
 /signbitf.c
 /signbitl.c
@@ -127,13 +130,15 @@
 /wctype-h.c
 /wctype.in.h
 /wcwidth.c
+/windows-initguard.h
 /windows-mutex.c
 /windows-mutex.h
 /windows-once.c
 /windows-once.h
 /windows-recmutex.c
 /windows-recmutex.h
-/windows-spinlock.h
+/windows-rwlock.c
+/windows-rwlock.h
 /xalloc-oversized.h
 /xsize.c
 /xsize.h
@@ -145,6 +150,7 @@
 /iconv_open-irix.h
 /iconv_open-osf.h
 /iconv_open-solaris.h
+/iconv_open-zos.h
 
 # Files generated by the autotools:
 /Makefile.in
diff --git a/lib/Makefile.am b/lib/Makefile.am
index bb05483..aa32f57 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -308,6 +308,7 @@ config.h: $(BUILT_SOURCES) $(srcdir)/libunistring.sym
 	      | sed -e 's,.* ,,' | grep -v '@' | LC_ALL=C sort | LC_ALL=C uniq \
 	      | LC_ALL=C join -v 1 - $(srcdir)/libunistring.sym \
 	      | grep -v '^libintl_locale' \
+	      | grep -v 'gl_get_setlocale_null_lock' \
 	      | sed -e 's,^\(.*\)$$,#define \1 libunistring_\1,' > config.h-t; \
 	  } 6>&1 && \
 	  if test -f config.h; then \
diff --git a/tests/.gitignore b/tests/.gitignore
index bcb1541..e903908 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -1,29 +1,58 @@
 # Files brought in by gnulib-tool:
 /Makefile.gnulib
 /_Noreturn.h
+/accept.c
+/alloca.c
 /arg-nonnull.h
+/arpa_inet.in.h
 /basename-lgpl.c
+/binary-io.c
+/binary-io.h
+/bind.c
 /btowc.c
 /c++defs.h
+/cloexec.c
+/cloexec.h
+/close.c
+/connect.c
 /ctype.in.h
 /dirname-lgpl.c
 /dirname.h
 /dosname.h
+/dup2.c
 /error.c
 /error.h
 /exitfail.c
 /exitfail.h
+/fcntl.c
+/fcntl.in.h
+/fd-hook.c
+/fd-hook.h
 /fdopen.c
+/filename.h
+/fstat.c
+/ftruncate.c
+/getcwd-lgpl.c
+/getdtablesize.c
 /getpagesize.c
 /getprogname.c
 /getprogname.h
 /gettext.h
+/gettimeofday.c
 /iconvsupport.c
+/ignore-value.h
+/inet_pton.c
 /infinity.h
 /init.sh
 /intprops.h
 /inttypes.in.h
+/ioctl.c
 /isblank.c
+/listen.c
+/locale.c
+/localtime-buffer.c
+/localtime-buffer.h
+/lstat.c
 /macros.h
 /mbtowc-impl.h
 /mbtowc.c
@@ -33,25 +62,63 @@
 /msvc-nothrow.c
 /msvc-nothrow.h
 /nan.h
+/nanosleep.c
+/nap.h
+/netinet_in.in.h
+/open.c
+/pathmax.h
+/perror.c
+/pipe.c
+/pthread-thread.c
+/pthread.in.h
 /pthread_sigmask.c
 /putenv.c
 /raise.c
 /randomd.c
 /randoml.c
+/same-inode.h
+/sched.in.h
+/select.c
 /setenv.c
 /setlocale.c
+/setsockopt.c
+/sig-handler.c
+/sig-handler.h
+/sigaction.c
 /signal.in.h
 /signature.h
 /sigprocmask.c
 /sleep.c
+/socket.c
+/sockets.c
+/sockets.h
+/stat-time.c
+/stat-time.h
+/stat-w32.c
+/stat-w32.h
+/stat.c
 /stdalign.in.h
 /stdio.in.h
 /strerror-override.c
 /strerror-override.h
 /strerror.c
+/strerror_r.c
 /stripslash.c
+/symlink.c
+/sys_ioctl.in.h
+/sys_select.in.h
+/sys_socket.c
+/sys_socket.in.h
+/sys_stat.in.h
+/sys_time.in.h
+/sys_uio.in.h
+/test-accept.c
 /test-alloca-opt.c
+/test-arpa_inet.c
 /test-array-mergesort.c
+/test-binary-io.c
+/test-binary-io.sh
+/test-bind.c
 /test-btowc.c
 /test-btowc1.sh
 /test-btowc2.sh
@@ -59,9 +126,15 @@
 /test-c-strcase.sh
 /test-c-strcasecmp.c
 /test-c-strncasecmp.c
+/test-cloexec.c
+/test-close.c
+/test-connect.c
 /test-ctype.c
+/test-dup2.c
 /test-environ.c
 /test-errno.c
+/test-fcntl-h.c
+/test-fcntl.c
 /test-fdopen.c
 /test-fgetc.c
 /test-float.c
@@ -71,13 +144,23 @@
 /test-frexp.h
 /test-frexpl.c
 /test-fseterr.c
+/test-fstat.c
+/test-ftruncate.c
+/test-ftruncate.sh
 /test-fwrite.c
+/test-getcwd-lgpl.c
+/test-getdtablesize.c
 /test-getprogname.c
+/test-gettimeofday.c
+/test-hard-locale.c
 /test-iconv-h.c
 /test-iconv.c
+/test-ignore-value.c
+/test-inet_pton.c
 /test-init.sh
 /test-intprops.c
 /test-inttypes.c
+/test-ioctl.c
 /test-isblank.c
 /test-isnand-nolibm.c
 /test-isnand.h
@@ -88,10 +171,13 @@
 /test-iswblank.c
 /test-langinfo.c
 /test-limits-h.c
+/test-listen.c
 /test-localcharset.c
 /test-locale.c
 /test-localename.c
 /test-lock.c
+/test-lstat.c
+/test-lstat.h
 /test-malloca.c
 /test-math.c
 /test-mbrtowc-w32-1.sh
@@ -109,22 +195,49 @@
 /test-mbsinit.c
 /test-mbsinit.sh
 /test-memchr.c
+/test-nanosleep.c
+/test-netinet_in.c
 /test-once.c
+/test-open.c
+/test-open.h
+/test-pathmax.c
+/test-perror.c
+/test-perror.sh
+/test-perror2.c
+/test-pipe.c
 /test-printf-frexp.c
 /test-printf-frexpl.c
+/test-pthread-thread.c
+/test-pthread.c
 /test-pthread_sigmask1.c
 /test-pthread_sigmask2.c
 /test-raise.c
 /test-rwlock1.c
+/test-sched.c
+/test-select-fd.c
+/test-select-in.sh
+/test-select-out.sh
+/test-select-stdin.c
+/test-select.c
+/test-select.h
 /test-setenv.c
 /test-setlocale1.c
 /test-setlocale1.sh
 /test-setlocale2.c
 /test-setlocale2.sh
+/test-setlocale_null-mt-all.c
+/test-setlocale_null-mt-one.c
+/test-setlocale_null.c
+/test-setsockopt.c
+/test-sigaction.c
 /test-signal-h.c
 /test-signbit.c
 /test-sigprocmask.c
 /test-sleep.c
+/test-sockets.c
+/test-stat-time.c
+/test-stat.c
+/test-stat.h
 /test-stdalign.c
 /test-stdbool.c
 /test-stddef.c
@@ -132,12 +245,21 @@
 /test-stdio.c
 /test-stdlib.c
 /test-strerror.c
+/test-strerror_r.c
 /test-striconveh.c
 /test-striconveha.c
 /test-string.c
 /test-strncat.c
 /test-strstr.c
+/test-symlink.c
+/test-symlink.h
+/test-sys_ioctl.c
+/test-sys_select.c
+/test-sys_socket.c
+/test-sys_stat.c
+/test-sys_time.c
 /test-sys_types.c
+/test-sys_uio.c
 /test-sys_wait.h
 /test-thread_create.c
 /test-thread_self.c
@@ -165,6 +287,7 @@
 /unsetenv.c
 /unused-parameter.h
 /usleep.c
+/w32sock.h
 /warn-on-use.h
 /wcrtomb.c
 /wctob.c