1 dnl Copyright 2009,2010 Free Software Foundation, Inc.
3 dnl This file is part of GNU Radio
5 dnl GNU Radio is free software; you can redistribute it and/or modify
6 dnl it under the terms of the GNU General Public License as published by
7 dnl the Free Software Foundation; either version 3, or (at your option)
10 dnl GNU Radio is distributed in the hope that it will be useful,
11 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
12 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 dnl GNU General Public License for more details.
15 dnl You should have received a copy of the GNU General Public License
16 dnl along with GNU Radio; see the file COPYING. If not, write to
17 dnl the Free Software Foundation, Inc., 51 Franklin Street,
18 dnl Boston, MA 02110-1301, USA.
22 dnl Identify git binary
23 AC_PATH_PROG([GIT],[git])
25 dnl If it exists, get either 'git describe' or fallback to current commit
26 if test x$GIT != x ; then
27 AC_MSG_CHECKING([existence of git version control directory])
28 if test -d $srcdir/.git ; then
30 AC_MSG_CHECKING([git description of current commit])
31 if (cd $srcdir && $GIT describe >/dev/null 2>&1); then
32 GIT_DESCRIBE=`cd $srcdir && $GIT describe --abbrev=8 --long`
33 GIT_TAG=`echo $GIT_DESCRIBE | cut -f 1 -d '-'`
34 GIT_SEQNO=`echo $GIT_DESCRIBE | cut -f 2 -d '-'`
35 GIT_COMMIT=`echo $GIT_DESCRIBE | cut -f 3 -d '-' | cut -f 2- -d 'g'`
36 # Release candidate tags create an extra -rcX field
37 if test x`echo $GIT_DESCRIBE | cut -f 1- -d '-' --output-delimiter=' ' | wc -w` = x4; then
38 GIT_TAG=`echo $GIT_DESCRIBE | cut -f -2 -d '-'`
39 GIT_SEQNO=`echo $GIT_DESCRIBE | cut -f 3 -d '-'`
40 GIT_COMMIT=`echo $GIT_DESCRIBE | cut -f 4 -d '-' | cut -f 2- -d 'g'`
42 AC_MSG_RESULT([$GIT_DESCRIBE])
44 AC_MSG_RESULT([unable to find, using current commit])
47 GIT_COMMIT=`cd $srcdir && $GIT describe --always --abbrev=8`
50 AC_MSG_RESULT([not found])
53 AC_SUBST([GIT_DESCRIBE])
56 AC_SUBST([GIT_COMMIT])