libzmq: Update from 4.2.2 to 4.2.3

packages/libzmq/build.sh

@@ -1,11 +1,10 @@
 TERMUX_PKG_HOMEPAGE=http://zeromq.org/
 TERMUX_PKG_DESCRIPTION="Fast messaging system built on sockets. C and C++ bindings. aka 0MQ, ZMQ."
-TERMUX_PKG_VERSION=4.2.2
-TERMUX_PKG_REVISION=1
+TERMUX_PKG_VERSION=4.2.3
+TERMUX_PKG_SHA256=8f1e2b2aade4dbfde98d82366d61baef2f62e812530160d2e6d0a5bb24e40bc0
 TERMUX_PKG_SRCURL=https://github.com/zeromq/libzmq/releases/download/v${TERMUX_PKG_VERSION}/zeromq-${TERMUX_PKG_VERSION}.tar.gz
-TERMUX_PKG_SHA256=5b23f4ca9ef545d5bd3af55d305765e3ee06b986263b31967435d285a3e6df6b
 TERMUX_PKG_DEPENDS="libsodium"
-TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--with-libsodium"
+TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--with-libsodium --disable-libunwind"
 
 termux_step_post_extract_package() {
 	./autogen.sh

packages/libzmq/configure.ac.patch

@@ -1,21 +0,0 @@
-diff -u -r ../zeromq-4.2.2/configure.ac ./configure.ac
---- ../zeromq-4.2.2/configure.ac	2017-02-18 19:05:37.000000000 +0100
-+++ ./configure.ac	2017-03-23 10:31:34.501893021 +0100
-@@ -653,17 +653,6 @@
-     AC_SUBST(pkg_config_defines, "")
- fi
- 
--PKG_CHECK_MODULES(LIBUNWIND, [libunwind],
--    [
--        AC_DEFINE(HAVE_LIBUNWIND, 1, [The libunwind library is to be used])
--        AC_SUBST([LIBUNWIND_CFLAGS])
--        AC_SUBST([LIBUNWIND_LIBS])
--        AC_CHECK_LIB([dl], [dladdr])
--    ],
--    [
--        AC_MSG_WARN([Cannot find libunwind])
--    ])
--
- # Subst LIBZMQ_EXTRA_CFLAGS & CXXFLAGS & LDFLAGS
- AC_SUBST(LIBZMQ_EXTRA_CFLAGS)
- AC_SUBST(LIBZMQ_EXTRA_CXXFLAGS)