X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=gr-howto-write-a-block%2Fconfig%2Fusrp_libusb.m4;fp=gr-howto-write-a-block%2Fconfig%2Fusrp_libusb.m4;h=cb3130c8730d953e0eafe4880e7782db5a360e49;hb=8a9ddbb0675f9bfcc6e03b457fba6c79474a3693;hp=0000000000000000000000000000000000000000;hpb=82d471b9b4a8b389b5da44b19c69c36420828382;p=debian%2Fgnuradio

diff --git a/gr-howto-write-a-block/config/usrp_libusb.m4 b/gr-howto-write-a-block/config/usrp_libusb.m4
new file mode 100644
index 00000000..cb3130c8
--- /dev/null
+++ b/gr-howto-write-a-block/config/usrp_libusb.m4
@@ -0,0 +1,48 @@
+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
+])