diff --git a/configure.ac b/configure.ac
index d4f1251..07ec17e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -181,12 +181,14 @@
 		AC_CHECK_LIB([udev], [udev_new], [], [AC_MSG_ERROR([udev support requested but libudev not installed])])
 
 		# We can build umockdev tests (if available)
-		PKG_PROG_PKG_CONFIG
-		PKG_CHECK_MODULES(UMOCKDEV, umockdev-1.0 >= 0.16.0, ac_have_umockdev=yes, ac_have_umockdev=no)
-		PKG_CHECK_MODULES(UMOCKDEV_HOTPLUG, umockdev-1.0 >= 0.17.7, ac_umockdev_hotplug=yes, ac_umockdev_hotplug=no)
-		if test "x$ac_umockdev_hotplug" = xyes; then
-			AC_DEFINE([UMOCKDEV_HOTPLUG], [1], [UMockdev hotplug code is not racy])
-		fi
+		m4_ifdef([PKG_PROG_PKG_CONFIG],[
+			PKG_PROG_PKG_CONFIG
+		   	PKG_CHECK_MODULES([UMOCKDEV], [umockdev-1.0 >= 0.16.0], [ac_have_umockdev=yes], [ac_have_umockdev=no])
+		   	PKG_CHECK_MODULES([UMOCKDEV_HOTPLUG], [umockdev-1.0 >= 0.17.7], [ac_umockdev_hotplug=yes], [ac_umockdev_hotplug=no])
+			if test $ac_umockdev_hotplug = yes; then
+			   AC_DEFINE([UMOCKDEV_HOTPLUG], [1], [UMockdev hotplug code is not racy])
+			fi
+		], [])
 	else
 		AC_CHECK_HEADERS([asm/types.h])
 		AC_CHECK_HEADER([linux/netlink.h], [], [AC_MSG_ERROR([Linux netlink header not found])])
diff --git a/libusb/version_nano.h b/libusb/version_nano.h
index e1d64a3..7830159 100644
--- a/libusb/version_nano.h
+++ b/libusb/version_nano.h
@@ -1 +1 @@
-#define LIBUSB_NANO 11726
+#define LIBUSB_NANO 11727