libunistring: bump to version 0.9.9

Drop --{enable,disable}-threads; threading support is detected
automatically.

Add GPLv3 license file.

Add license files hash.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libunistring/libunistring.hash

@@ -1,2 +1,6 @@
 # Locally calculated after checking pgp signature
-sha256	2e3764512aaf2ce598af5a38818c0ea23dedf1ff5460070d1b6cee5c3336e797	libunistring-0.9.7.tar.xz
+# https://ftp.gnu.org/gnu/libunistring/libunistring-0.9.9.tar.xz.sig
+sha256	a4d993ecfce16cf503ff7579f5da64619cee66226fb3b998dafb706190d9a833	libunistring-0.9.9.tar.xz
+# Locally calculated
+sha256	8ceb4b9ee5adedde47b31e975c1d90c73ad27b6b165a1dcd80c7c545eb65b903	COPYING
+sha256	a853c2ffec17057872340eee242ae4d96cbf2b520ae27d903e1b2fef1a5f9d1c	COPYING.LIB

package/libunistring/libunistring.mk

@@ -4,18 +4,12 @@
 #
 ################################################################################
 
-LIBUNISTRING_VERSION = 0.9.7
+LIBUNISTRING_VERSION = 0.9.9
 LIBUNISTRING_SITE = $(BR2_GNU_MIRROR)/libunistring
 LIBUNISTRING_SOURCE = libunistring-$(LIBUNISTRING_VERSION).tar.xz
 LIBUNISTRING_INSTALL_STAGING = YES
 LIBUNISTRING_LICENSE = LGPL-3.0+ or GPL-2.0
-LIBUNISTRING_LICENSE_FILES = COPYING.LIB
-
-ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
-LIBUNISTRING_CONF_OPTS += --enable-threads=posix
-else
-LIBUNISTRING_CONF_OPTS += --disable-threads
-endif
+LIBUNISTRING_LICENSE_FILES = COPYING COPYING.LIB
 
 $(eval $(autotools-package))
 $(eval $(host-autotools-package))