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-rw-r--r--include/config.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/config.h b/include/config.h
index 318ed39d8..4f97a12a3 100644
--- a/include/config.h
+++ b/include/config.h
@@ -26,4 +26,12 @@
#define UNITS_METRIC
#endif
+// Various undefined behavior bugs may or may not prevent compilation with
+// newer compilers. So always fix them when using a modern compiler.
+#if MODERN
+#ifndef UBFIX
+#define UBFIX
+#endif
+#endif
+
#endif // GUARD_CONFIG_H