And add a patch for CMakeList.txt to configure
correctly with openpgm enabled.

Signed-off-by: Ye Holmes <yeholmes@outlook.com>

Remove pointless uclibcxx patch.

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

Fixes
CVE-2020-15166

Signed-off-by: Jan Pavlinec <jan.pavlinec@nic.cz>

Remove upstreamed patches.

Add uClibc++ patch for those that need it.

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

Faster compilation.

Before:

time make package/zmq/compile -j 12
Executed in   24.98 secs   fish           external
   usr time   97.41 secs  263.00 micros   97.40 secs
   sys time   12.51 secs   34.00 micros   12.51 secs

After:

time make package/zmq/compile -j 12
Executed in   18.17 secs   fish           external
   usr time   85.22 secs  248.00 micros   85.22 secs
   sys time    9.23 secs   32.00 micros    9.23 secs

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

libzmq is used by fbzmq, which absolutely requires libstdcpp since it's a
C++14 project. There's no point in using two libc++.

Cleaned up Makefile for consistency between packages.

Added nanosleep patch for platforms that are missing usleep.

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

Compilation for the zmq lib is broken for c++ stdlib in openwrt since the
patches add uclibc++ specific code.

This diffs changes the patch to only include the code conditioned
on if we are actually using uclibc++.

Signed-off-by: Amol Bhave <amol@amolbhave.com>

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

Signed-off-by: Ted Hess <thess@kitschensync.net>

Signed-off-by: Ted Hess <thess@kitschensync.net>

lzmq upgrade to 0.4.3

Signed-off-by: Dirk Chang <dirk@kooiot.com>

Signed-off-by: Dirk Chang <dirk@kooiot.com>