Merge branch 'upstream' into dfsg-orig

[debian/gnuradio] / gr-howto-write-a-block / config / gr_subversion.m4

diff --git a/gr-howto-write-a-block/config/gr_subversion.m4 b/gr-howto-write-a-block/config/gr_subversion.m4
new file mode 100644 (file)
index 0000000..849d7a9
--- /dev/null
+++ b/gr-howto-write-a-block/config/gr_subversion.m4
@@ -0,0 +1,36 @@
+dnl
+dnl Copyright 2007 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.
+dnl 
+
+# GR_SUBVERSION()
+#
+# Test for presence of subversion, and create variables for 
+# current repository version and last changed date.
+
+AC_DEFUN([GR_SUBVERSION],[
+       AC_PATH_PROG([SVN],[svn])
+       if test "$SVN" != "" -a -d .svn ; then
+           SVNVERSION=`$SVN info . | grep '^Revision' | cut -f 2- -d ' '`
+           SVNDATE=`$SVN info . | grep 'Last Changed Date' | cut -f 4-6 -d ' '`
+       fi
+
+       AC_SUBST(SVNVERSION)
+       AC_SUBST(SVNDATE)
+])