Prevent massive end-of-process leak sanitizer dump

CMakeLists.txt

@@ -85,7 +85,7 @@ add_gcc_compiler_cxxflags("-fno-exceptions -fno-rtti")
 add_gcc_compiler_cxxflags("-Wnon-virtual-dtor -Wold-style-cast -Woverloaded-virtual")
 add_gcc_compiler_cflags("-Wchar-subscripts -Wwrite-strings")
 if(WITH_ASAN)
-  add_gcc_compiler_flags("-fsanitize=address")
+  add_gcc_compiler_flags("-fsanitize=address -DWITH_ASAN")
 endif()
 
 string(TOLOWER "${CMAKE_BUILD_TYPE}" CMAKE_BUILD_TYPE_LOWER)

src/main.cpp

@@ -28,6 +28,10 @@
 #include "gui/MainWindow.h"
 #include "gui/MessageBox.h"
 
+#ifdef WITH_ASAN
+#include <sanitizer/lsan_interface.h>
+#endif
+
 #ifdef QT_STATIC
 #include <QtPlugin>
 
@@ -130,6 +134,14 @@ int main(int argc, char** argv)
             }
         }
     }
-    
-    return app.exec();
+
+    int exitCode = app.exec();
+
+#ifdef WITH_ASAN
+    // do leak check here to prevent massive tail of end-of-process leak errors from third-party libraries
+    __lsan_do_leak_check();
+    __lsan_disable();
+#endif
+
+    return exitCode;
 }