Define the MINIMUM_API_LEVEL for OpenBSD
Every platform has to declare the minimum libusb API level
required by libstlink on it.
#if defined (__FreeBSD__)
#define MINIMAL_API_VERSION 0x01000102 // v1.0.16
+#elif defined (__OpenBSD__)
+ #define MINIMAL_API_VERSION 0x01000104 // v1.0.20
#elif defined (__linux__)
#define MINIMAL_API_VERSION 0x01000104 // v1.0.20
#elif defined (__APPLE__)
