building with php7.4 error /zmq.c:238:20: error: lvalue required as left operand of assignment

[danielecr]

the error was reported in zeromq/php-zmq#200

using

        && git clone git://github.com/zeromq/php-zmq.git \
	&& cd php-zmq \
	&& phpize \
	&& ./configure \
	&& make \
	&& make install \

to replace `pecl install zmq-beta', as suggested, does not fix the problem.

compilation log:

/tmp/pear/temp/zmq/zmq.c:238:20: error: lvalue required as left operand of assignment
  238 |   GC_REFCOUNT(&le) = 1;
      |                    ^
/tmp/pear/temp/zmq/zmq.c: In function 'php_zmq_socket_plist_key':
/tmp/pear/temp/zmq/zmq.c:526:38: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'zend_long' {aka 'int'} [-Wformat=]
  526 |  return strpprintf(0, "zmq_socket:[%ld]-[%s]-[%d]", type, persistent_id->val, use_shared_ctx);
      |                                    ~~^              ~~~~
      |                                      |              |
      |                                      long int       zend_long {aka int}
      |                                    %d
/tmp/pear/temp/zmq/zmq.c: In function 'php_zmq_socket_store':
/tmp/pear/temp/zmq/zmq.c:538:19: error: lvalue required as left operand of assignment
  538 |  GC_REFCOUNT(&le) = 1;
      |                   ^
make: *** [Makefile:192: zmq.lo] Error 1