diff -ruN weechat-3.4/tests/tests.cpp weechat-3.4-disable-memleak-detection/tests/tests.cpp
--- weechat-3.4/tests/tests.cpp	2021-12-17 23:57:32.000000000 -0800
+++ weechat-3.4-disable-memleak-detection/tests/tests.cpp	2022-01-14 16:36:08.330205164 -0800
@@ -49,6 +49,7 @@
 }
 
 #include "CppUTest/CommandLineTestRunner.h"
+#include "CppUTest/MemoryLeakWarningPlugin.h"
 
 #define LOCALE_TESTS "en_US.UTF-8"
 
@@ -330,6 +331,11 @@
         return 1;
     }
 
+    /* this fails on basically every test right now 
+     * see https://cpputest.github.io/manual.html#turning-memory-leak-detection-off-and-on
+     */
+    MemoryLeakWarningPlugin::turnOffNewDeleteOverloads();
+
     /* clean WeeChat home */
     dir_exec_on_files (WEECHAT_TESTS_HOME, 1, 1, &exec_on_files_cb, NULL);