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-rw-r--r--include/qemu/osdep.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h
index 18b940db75..475a1c62ff 100644
--- a/include/qemu/osdep.h
+++ b/include/qemu/osdep.h
@@ -27,6 +27,10 @@
 #ifndef QEMU_OSDEP_H
 #define QEMU_OSDEP_H
 
+#if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__ && defined __linux__
+# define _FORTIFY_SOURCE 2
+#endif
+
 #include "config-host.h"
 #ifdef NEED_CPU_H
 #include CONFIG_TARGET