--- a/Makefile.am
+++ b/Makefile.am
@@ -110,7 +110,7 @@ libhpmud_la_SOURCES += io/hpmud/musb_lib
 libhpmud_la_LDFLAGS += -lusb
 else
 libhpmud_la_SOURCES += io/hpmud/musb.c 
-libhpmud_la_CFLAGS  += -I/usr/include/libusb-1.0
+libhpmud_la_CFLAGS  += ${LIBUSB_1_0_CFLAGS}
 libhpmud_la_LDFLAGS += -lusb-1.0
 endif
 
@@ -365,7 +365,7 @@ hpmudext_la_CFLAGS += -Iprotocol/discove
 endif
 
 if !LIBUSB01_BUILD
-hpmudext_la_CFLAGS +=-I/usr/include/libusb-1.0 
+hpmudext_la_CFLAGS += ${LIBUSB_1_0_CFLAGS}
 endif
 endif #!HPLIP_CLASS_DRIVER
 # ui (qt3)
--- a/configure.in
+++ b/configure.in
@@ -625,6 +625,10 @@ if test "$class_driver" = "no" && test "
    else
       AC_CHECK_LIB([usb-1.0], [libusb_init], [LIBS="$LIBS"], [AC_MSG_ERROR([cannot find libusb 1.0 support], 2)])
       AC_CHECK_HEADERS(libusb-1.0/libusb.h, ,[AC_MSG_ERROR([cannot find libusb-1.0-devel support], 11)])
+      PKG_CHECK_MODULES(LIBUSB_1_0, [ libusb-1.0 >= 1.0.0 ], have_libusb_1_0=yes, have_libusb_1_0=no)
+      if test "$have_libusb_1_0" = "yes"; then
+        CFLAGS="$CFLAGS $LIBUSB_1_0_CFLAGS"
+      fi
    fi
 fi