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dnl Copyright 2003,2008,2009 Free Software Foundation, Inc.
dnl
dnl This file is part of GNU Radio
dnl
dnl GNU Radio is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 3, or (at your option)
dnl any later version.
dnl
dnl GNU Radio is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with GNU Radio; see the file COPYING. If not, write to
dnl the Free Software Foundation, Inc., 51 Franklin Street,
dnl Boston, MA 02110-1301, USA.
# $1 is $req_libusb1:
# yes : check libusb-1.0
# no : check libusb-0.12
# "" : check libusb-0.12
AC_DEFUN([USRP_LIBUSB], [
libusbok=yes
have_libusb1=no
if test [x]$1 = xyes; then
PKG_CHECK_MODULES(USB, libusb-1.0, [have_libusb1=yes], [
AC_LANG_PUSH(C)
AC_CHECK_HEADERS([libusb-1.0/libusb.h], [have_libusb1=yes],
[libusbok=no; AC_MSG_RESULT([USRP requires libusb-1.0. libusb.h not found. See http://www.libusb.org])])
AC_SEARCH_LIBS(libusb_bulk_transfer, [usb], [USB_LIBS="$LIBS"],
[libusbok=no; AC_MSG_RESULT([USRP requires libusb-1.0. libusb_bulk_transfer not found. See http://www.libusb.org])])
AC_LANG_POP
])
else
PKG_CHECK_MODULES(USB, libusb, [], [
AC_LANG_PUSH(C)
AC_CHECK_HEADERS([usb.h], [],
[libusbok=no; AC_MSG_RESULT([USRP requires libusb. usb.h not found. See http://www.libusb.org])])
save_LIBS="$LIBS"
case "$host_os" in
darwin*)
LIBS="$LIBS -lIOKit"
;;
*) ;;
esac
AC_SEARCH_LIBS(usb_bulk_write, [usb], [USB_LIBS="$LIBS"],
[libusbok=no; AC_MSG_RESULT([USRP requires libusb. usb_bulk_write not found. See http://www.libusb.org])])
LIBS="$save_LIBS"
AC_LANG_POP
])
fi
if test x$libusbok = xyes; then
AC_SUBST(USB_LIBS)
ifelse([$2], , :, [$2])
else
ifelse([$3], , :, [$3])
fi
])
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