diff options
Diffstat (limited to 'gr-howto-write-a-block/config/usrp_libusb.m4')
| -rw-r--r-- | gr-howto-write-a-block/config/usrp_libusb.m4 | 81 |
1 files changed, 43 insertions, 38 deletions
diff --git a/gr-howto-write-a-block/config/usrp_libusb.m4 b/gr-howto-write-a-block/config/usrp_libusb.m4 index 9fe4753e6..cb3130c87 100644 --- a/gr-howto-write-a-block/config/usrp_libusb.m4 +++ b/gr-howto-write-a-block/config/usrp_libusb.m4 @@ -1,43 +1,48 @@ -# Check for libusb support. -*- Autoconf -*- - -# Copyright 2003 Free Software Foundation, Inc. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 3, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 51 Franklin Street, Boston, MA -# 02110-1301, USA. - -AC_DEFUN([USRP_LIBUSB], -[ - AC_REQUIRE([AC_CANONICAL_HOST]) - AC_LANG_PUSH(C) +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="$LIBS -lIOKit" + ;; + *) ;; + esac - AC_CHECK_HEADERS([usb.h], - [], - [ AC_MSG_ERROR([USRP requires libusb. usb.h not found, stop. See http://libusb.sf.net]) ] - ) + AC_SEARCH_LIBS(usb_bulk_write, [usb], [USB_LIBS="$LIBS"], [libusbok=no; AC_MSG_RESULT([USRP requires libusb. usb_bulk_write not found. See http://libusb.sf.net])]) - save_LIBS="$LIBS" - case "$host_os" in - darwin*) LIBS="$LIBS -lIOKit" ;; - *) ;; - esac - AC_SEARCH_LIBS(usb_bulk_write, [usb], - [ USB_LIBS="$LIBS" ], - [ AC_MSG_ERROR([USRP requires libusb. usb_bulk_write not found, stop. See http://libusb.sf.net]) ] - ) LIBS="$save_LIBS" - AC_LANG_POP - AC_SUBST(USB_LIBS) + AC_LANG_POP + ]) + + if test x$libusbok = xyes; then + AC_SUBST(USB_LIBS) + ifelse([$1], , :, [$1]) + else + ifelse([$2], , :, [$2]) + fi ]) |