gr-air-modes/config/usrp_libusb.m4
2010-09-14 22:01:56 -07:00

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dnl Copyright 2003,2008 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.
AC_DEFUN([USRP_LIBUSB], [
libusbok=yes
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://libusb.sf.net])])
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://libusb.sf.net])])
LIBS="$save_LIBS"
AC_LANG_POP
])
if test x$libusbok = xyes; then
AC_SUBST(USB_LIBS)
ifelse([$1], , :, [$1])
else
ifelse([$2], , :, [$2])
fi
])