Re: [Discuss-gnuradio] gnuradio on osx 10.6.4

[Elvis Dowson]

Hi Michael,

                       I was wondering if you could help me fix an issue with libusb not being recognized on Mac OS X 10.6.4.

I downloaded libusb-1.0.8 from the following location:

http://sourceforge.net/projects/libusb/files/libusb-1.0/libusb-1.0.8/libusb-1.0.8.tar.bz2/download

$ cd libusb-1.0.8

$ ./configure 

$ make -j 4 

$ sudo make install

Installation went fine and the headers are stored in /usr/local/include/libusb-1.0/libusb.h

However, when I run gnuradio configure, I get the following error:

checking for USB... no

checking for USB... no

checking usb.h usability... no

checking usb.h presence... no

checking for usb.h... no

USRP requires libusb header 'usb.h' which was not found or was not usable. See http://www.libusb.org

Unable to find dependency libusb.

I checked config/usrps_libusb.m4, but I don't know why it is not detecting the library, and jumping straight to the end and trying to look for usb.h

# $1 is $req_libusb1:

#   yes : check libusb-1.0

#   no  : check libusb-0.12

#   ""  : check libusb-0.12

AC_DEFUN([USRP_LIBUSB], [

  dnl Use PKGCONFIG to check for packages first, then check to

  dnl make sure the USB_* variables work (whether from PKGCONFIG

  dnl or overridden by the user)

  libusbok=no

  have_libusb1=no

  LIBUSB_PKG_CONFIG_NAME=''

  if test x$1 = xyes; then

    PKG_CHECK_MODULES(USB, libusb-1.0, [

      libusbok=yes

      have_libusb1=yes

      usb_header='libusb-1.0/libusb.h'

      usb_lib_func='libusb_bulk_transfer'

      usb_lib_name='usb-1.0'

      LIBUSB_PKG_CONFIG_NAME='libusb-1.0'

    ])

<snip...>

    if test $libusbok = no; then

      dnl if not, see if the pkgconfig module 'libusb-legacy' is available

      PKG_CHECK_MODULES(USB, [libusb-legacy], [

        libusbok=yes

        LIBUSB_PKG_CONFIG_NAME='libusb-legacy'

        ], [libusbok=no])

    fi

    dnl set variables for further testing

    usb_header='usb.h'

    usb_lib_func='usb_bulk_write'

    usb_lib_name='usb'

  fi

Best regards,

Elvis