am ee844515: Merge "Fix "error: \'strlen\' was not declared in this scope"."

* commit 'ee84451582a1ccf3a177726f2848b64670c88437':
  Fix "error: 'strlen' was not declared in this scope".
diff --git a/include/hardware/qemu_pipe.h b/include/hardware/qemu_pipe.h
index 814b20b..53aec97 100644
--- a/include/hardware/qemu_pipe.h
+++ b/include/hardware/qemu_pipe.h
@@ -23,6 +23,7 @@
 #include <pthread.h>  /* for pthread_once() */
 #include <stdlib.h>
 #include <stdio.h>
+#include <string.h>
 #include <errno.h>
 
 #ifndef D