libunwind: Update from 1.2.20170304 to 1.3.1

packages/libunwind/build.sh

@@ -1,20 +1,14 @@
 TERMUX_PKG_HOMEPAGE=http://www.nongnu.org/libunwind/
 TERMUX_PKG_DESCRIPTION="Library to determine the call-chain of a program"
-# Use master and the commit date as version suffix:
-local _COMMIT=2b8ab794b3a636c05396fdbaebbba25d8aa4722a
-TERMUX_PKG_VERSION=1.2.20170304
-TERMUX_PKG_SRCURL=https://github.com/libunwind/libunwind/archive/${_COMMIT}.zip
-TERMUX_PKG_SHA256=fdbe8f0348a0db86663fdf7a363fcb281fef220f85bd751db8ed13aca00c062d
+TERMUX_PKG_VERSION=1.3.1
+TERMUX_PKG_SHA256=43997a3939b6ccdf2f669b50fdb8a4d3205374728c2923ddc2354c65260214f8
+TERMUX_PKG_SRCURL=https://github.com/libunwind/libunwind/releases/download/v$TERMUX_PKG_VERSION/libunwind-$TERMUX_PKG_VERSION.tar.gz
 TERMUX_PKG_EXTRA_CONFIGURE_ARGS="
 --disable-tests
 --disable-coredump
 --disable-minidebuginfo
 "
 
-termux_step_post_extract_package() {
-	NOCONFIGURE=1 ./autogen.sh
-}
-
 termux_step_post_massage() {
 	# Hack to fix problem with building arm c++ code
 	# which should not use this libunwind: