Use AC_PATH_PROG to avoid which(1).

In addition to testing if $SVN is non-null, require the presence of a
subversion ".svn" directory.
Confirmed working with svn builds.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8033 221aa14e-8319-0410-a670-987f0aec2ac5

diff --git a/config/gr_subversion.m4 b/config/gr_subversion.m4
index 7a415219d8cbe6384e41c6780092268b6f7fe326..849d7a9f60c395fd14ee61e7bb5acc1710f5948a 100644 (file)
--- a/config/gr_subversion.m4
+++ b/config/gr_subversion.m4
@@ -23,19 +23,10 @@ dnl
 #
 # Test for presence of subversion, and create variables for 
 # current repository version and last changed date.
-#
-# TODO: Fix the following problems in this code:
-#
-# 1. Remove use of non-standard program which (3.0BSD, not specified
-# by POSIX.
-#
-# 2. When operating on distribution tarballs (which do not have
-# subversion metadata) on machines that have subversion, do not
-# produce error message.
 
 AC_DEFUN([GR_SUBVERSION],[
-       AC_CHECK_PROG([SVN],[svn],[`which svn`])
-       if ! test -z $SVN ; then
+       AC_PATH_PROG([SVN],[svn])
+       if test "$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