-# 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)
-
- libusbok=yes
- 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 $libusbok = yes; then
- AC_SUBST(USB_LIBS)
- ifelse([$1], , :, [$1])
- else
- ifelse([$2], , :, [$2])
- fi
+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], [
+ 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
+ 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'
+ ])
+ fi
+ if test $libusbok = no; then
+ dnl not using libusb1, or PKGCONFIG check for libusb1 failed;
+ dnl see if legacy version is found.
+ dnl it might be installed under the name either 'libusb' or
+ dnl 'libusb-legacy'. check them in that order.
+
+ dnl see if the pkgconfig module 'libusb' is available
+ PKG_CHECK_MODULES(USB, libusb, [libusbok=yes], [libusbok=no])
+ dnl PKG_CHECK_MODULES does not work correctly when embedded
+ 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], [libusbok=no])
+ fi
+ if test $libusbok = yes; then
+ dnl if PKGCONFIG worked, set variables for further testing
+ usb_header='usb.h'
+ usb_lib_func='usb_bulk_write'
+ usb_lib_name='usb'
+ fi
+ fi
+ if test $libusbok = no; then
+ AC_MSG_RESULT([USRP requires libusb, which was not found. See http://www.libusb.org])
+ else
+
+ dnl either some pkgconfig LIBUSB* variant was found, or USB_*
+ dnl variables were overridden by the user as arguments to configure.
+ dnl either way, check the USB_* variables to make sure they work
+
+ AC_LANG_PUSH(C)
+ save_CPPFLAGS="$CPPFLAGS"
+ if test x$USB_INCLUDEDIR != x; then
+ USB_INCLUDES="-I$USB_INCLUDEDIR"
+ CPPFLAGS="$CPPFLAGS $USB_INCLUDES"
+ AC_SUBST(USB_INCLUDES)
+ fi
+ AC_CHECK_HEADERS([$usb_header], [], [libusbok=no])
+ CPPFLAGS="$save_CPPFLAGS"
+ AC_LANG_POP(C)
+
+ if test $libusbok = no; then
+ AC_MSG_RESULT([USRP requires libusb header '$usb_header' which was not found or was not usable. See http://www.libusb.org])
+ else
+
+ dnl found the header; now make sure the library is OK
+
+ AC_LANG_PUSH(C)
+ save_LIBS="$LIBS"
+ case "$host_os" in
+ darwin*)
+ USB_LIBS="$USB_LIBS -lIOKit"
+ ;;
+ *) ;;
+ esac
+ LIBS="$LIBS $USB_LIBS"
+ AC_CHECK_LIB([$usb_lib_name], [$usb_lib_func], [], [
+ libusbok=no
+ AC_MSG_RESULT([USRP requires library '$usb_lib_name' with function '$usb_lib_func', which was either not found or was not usable. See http://www.libusb.org])
+ ])
+ LIBS="$save_LIBS"
+ AC_LANG_POP(C)
+ fi
+ fi
+ if test $libusbok = yes; then
+ AC_SUBST(USB_LIBS)
+ ifelse([$2], , :, [$2])
+ else
+ USB_INCLUDES=
+ USB_LIBS=
+ ifelse([$3], , :, [$3])
+ fi
])
projects / debian / gnuradio / blobdiff