gentoo-overlay/media-gfx/sane-backends/files/sane-backends-1.0.27-disable-usb-tests.patch

--- a/testsuite/sanei/sanei_usb_test.c~	2017-05-15 03:19:11.000000000 +0200
+++ b/testsuite/sanei/sanei_usb_test.c	2017-09-27 12:13:57.402803737 +0200
@@ -832,6 +832,8 @@
   int detected, opened, i;
   SANE_Int dn[MAX_DEVICES];
 
+  return 77;
+
 #ifdef HAVE_LIBUSB_LEGACY
   printf ("\n%s built with old libusb\n\n", argv[0]);
 #endif