--- libusb-1.0.9/libusb/io.c
+++ libusb-1.0.9-musl/libusb/io.c
@@ -36,6 +36,17 @@
 
 #include "libusbi.h"
 
+/*
+ * Android and musl, at least, don't provide this macro
+ */
+#ifndef TIMESPEC_TO_TIMEVAL
+#define TIMESPEC_TO_TIMEVAL(tv, ts)		\
+do {						\
+	(tv)->tv_sec = (ts)->tv_sec;		\
+	(tv)->tv_usec = (ts)->tv_nsec /	1000;	\
+} while (0)
+#endif
+
 /**
  * \page io Synchronous and asynchronous device I/O
  *