zmq: Update to 4.1.6

Signed-off-by: Rosen Penev <rosenp@gmail.com>

libs/zmq/Makefile

@@ -10,15 +10,15 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=zeromq
-PKG_VERSION:=4.1.4
+PKG_VERSION:=4.1.6
 PKG_RELEASE:=1
 PKG_MAINTAINER:=Dirk Chang <dirk@kooiot.com>
 PKG_LICENSE:=GPL-3.0+
 PKG_LICENSE_FILES:=LICENCE.txt
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
-PKG_SOURCE_URL:= https://github.com/zeromq/zeromq4-1/releases/download/v$(PKG_VERSION)/
-PKG_HASH:=e99f44fde25c2e4cb84ce440f87ca7d3fe3271c2b8cfbc67d55e4de25e6fe378
+PKG_SOURCE_URL:=https://github.com/zeromq/zeromq4-1/releases/download/v$(PKG_VERSION)
+PKG_HASH:=02ebf60a43011e770799336365bcbce2eb85569e9b5f52aa0d8cc04672438a0a
 
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(BUILD_VARIANT)/$(PKG_NAME)-$(PKG_VERSION)
 
@@ -48,7 +48,7 @@ define Package/libzmq-curve
   $(call Package/libzmq/default)
   VARIANT:=curve
   TITLE+= (CurveZMQ)
-  DEPENDS+=+libsodium 
+  DEPENDS+=+libsodium
 endef
 
 define Package/libzmq-nc/description

libs/zmq/patches/010-disable_pedantic_on_linux_with_ulibc++.patch

@@ -1,6 +1,6 @@
 --- a/configure.ac
 +++ b/configure.ac
-@@ -148,8 +148,10 @@ case "${host_os}" in
+@@ -150,8 +150,10 @@ case "${host_os}" in
      *linux*)
          # Define on Linux to enable all library features. Define if using a gnu compiler
          if test "x$GXX" = "xyes"; then

libs/zmq/patches/020-map_with_const_string_with_ublic++.patch

@@ -21,7 +21,7 @@
  
 --- a/src/stream_engine.cpp
 +++ b/src/stream_engine.cpp
-@@ -208,7 +208,7 @@ void zmq::stream_engine_t::plug (io_thre
+@@ -208,7 +208,7 @@ void zmq::stream_engine_t::plug (io_thread_t *io_thread_,
              //  Compile metadata.
              typedef metadata_t::dict_t properties_t;
              properties_t properties;
@@ -30,7 +30,7 @@
              zmq_assert (metadata == NULL);
              metadata = new (std::nothrow) metadata_t (properties);
          }
-@@ -815,7 +815,7 @@ void zmq::stream_engine_t::mechanism_rea
+@@ -815,7 +815,7 @@ void zmq::stream_engine_t::mechanism_ready ()
  
      //  If we have a peer_address, add it to metadata
      if (!peer_address.empty()) {