diff --git a/src/init_from_settings.cpp b/src/init_from_settings.cpp
index 053585f..9d8fb19 100644
--- a/src/init_from_settings.cpp
+++ b/src/init_from_settings.cpp
@@ -15,6 +15,14 @@
 
 #ifndef BOOST_LOG_WITHOUT_SETTINGS_PARSERS
 
+#if defined(__GNUC__) && !(defined(__INTEL_COMPILER) || defined(__ICL) || defined(__ICC) || defined(__ECC)) \
+    && (__GNUC__ * 100 + __GNUC_MINOR__) >= 407
+// This warning is caused by a compiler bug which is exposed when boost::optional is used: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47679
+// It has to be disabled here, before any code is included, since otherwise it doesn't help and the warning is still emitted.
+// ‘*((void*)& foo +2)’ may be used uninitialized in this function
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#endif
+
 #include "windows_version.hpp"
 #include <cstddef>
 #include <ios>