Imported Upstream version 3.2.2

[debian/gnuradio] / config / usrp_libusb.m4

diff --git a/config/usrp_libusb.m4 b/config/usrp_libusb.m4
index ab8305ff09fe887858e3803d6e262fbea8d5e518..cb3130c8730d953e0eafe4880e7782db5a360e49 100644 (file)
--- a/config/usrp_libusb.m4
+++ b/config/usrp_libusb.m4
@@ -1,51 +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_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
 
-       libusbok=yes
-       AC_CHECK_HEADERS([usb.h],
-         [],
-         [libusbok=no, 
-          AC_MSG_RESULT([USRP requires libusb. usb.h not found. 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"],
-         [libusbok=no,
-          AC_MSG_RESULT([USRP requires libusb. usb_bulk_write not found. See http://libusb.sf.net])]
-       )
         LIBS="$save_LIBS"
 
-       AC_LANG_POP
+        AC_LANG_POP
+    ])
 
-       if test $libusbok = yes; then
-           AC_SUBST(USB_LIBS)
-           ifelse([$1], , :, [$1])
-       else
-           ifelse([$2], , :, [$2])
-       fi
+    if test x$libusbok = xyes; then
+        AC_SUBST(USB_LIBS)
+       ifelse([$1], , :, [$1])
+    else
+        ifelse([$2], , :, [$2])
+    fi
 ])