Workaround to https://bugs.php.net/78465


diff -up ./gmagick.c.78465 ./gmagick.c
--- ./gmagick.c.78465	2015-04-24 12:33:06.000000000 +0200
+++ ./gmagick.c	2020-02-19 18:14:58.513454328 +0100
@@ -1278,6 +1278,13 @@ PHP_MINFO_FUNCTION(gmagick)
 	php_info_print_table_end();
 }
 
+/* {{{ PHP_MINFO_FUNCTION(gmagick)
+*/
+PHP_RINIT_FUNCTION(gmagick)
+{
+	MagickSetResourceLimit(ThreadsResource, 1);
+}
+
 /* {{{ zend_module_entry gmagick_module_entry
 */
 zend_module_entry gmagick_module_entry =
@@ -1287,7 +1294,7 @@ zend_module_entry gmagick_module_entry =
 	php_gmagick_functions,          /* Functions */
 	PHP_MINIT(gmagick),             /* MINIT */
 	PHP_MSHUTDOWN(gmagick),         /* MSHUTDOWN */
-	NULL,                           /* RINIT */
+	PHP_RINIT(gmagick),				/* RINIT */
 	NULL,                           /* RSHUTDOWN */
 	PHP_MINFO(gmagick),             /* MINFO */
 	PHP_GMAGICK_VERSION,            /* Version */