diff -up gnuradio-3.4.0/config/usrp_libusb.m4.orig gnuradio-3.4.0/config/usrp_libusb.m4 --- gnuradio-3.4.0/config/usrp_libusb.m4.orig 2011-06-12 05:54:36.000000000 +0200 +++ gnuradio-3.4.0/config/usrp_libusb.m4 2011-06-28 11:34:32.893634688 +0200 @@ -160,36 +160,6 @@ AC_DEFUN([USRP_LIBUSB], [ AC_MSG_RESULT([$libusbok]) LIBS="$save_LIBS" AC_LANG_POP(C) - - if test $libusbok = yes; then - if test ${libusb_name} != "libusb-1.0"; then - dnl PKGCONFIG found a legacy version of libusb; make sure the - dnl variable _usb_debug is available in the found library. - dnl Do not test on Windows, since that symbol is not defined. - case "$host_os" in - cygwin* | mingw*) - ;; - *) - AC_LANG_PUSH(C) - save_CPPFLAGS="$CPPFLAGS" - if test x$USB_INCLUDEDIR != x; then - CPPFLAGS="$USB_INCLUDES" - fi - save_LIBS="$LIBS" - LIBS="$USB_LIBS" - AC_MSG_CHECKING([$libusb_name for symbol usb_debug in library $usb_lib_name]) - AC_LINK_IFELSE([AC_LANG_PROGRAM([[ - extern int usb_debug;]], - [[usb_debug = 0;]])], - [libusbok=yes],[libusbok=no]) - AC_MSG_RESULT([$libusbok]) - LIBS="$save_LIBS" - CPPFLAGS="$save_CPPFLAGS" - AC_LANG_POP(C) - ;; - esac - fi - fi fi fi dnl if everything checks out OK, finish up