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File f2fs-tools-implicit-definitions.patch of Package android-tools

--- extras/f2fs_utils/f2fs_utils.c
+++ extras/f2fs_utils/f2fs_utils.c
@@ -28,6 +28,7 @@
 
 #define _LARGEFILE64_SOURCE
 
+#include <string.h>
 #include <fcntl.h>
 #include <dlfcn.h>