mpc.m4: check for svnversion first

git-svn-id: svn://scm.gforge.inria.fr/svn/mpc/trunk@1051 211d60ee-9f03-0410-a15a-8952a2c7a4e4

1 files changed, 7 insertions, 4 deletions

diff --git a/m4/mpc.m4 b/m4/mpc.m4
index f6b8477..3738bf3 100644
--- a/m4/mpc.m4
+++ b/m4/mpc.m4
@@ -256,9 +256,12 @@ error
 #
 AC_DEFUN([MPC_SVNVERSION], [
    if echo $VERSION | grep -c dev >/dev/null 2>&1 ; then
-      AC_MSG_CHECKING([for current svn version])
-      SVNVERSION=esyscmd([svnversion -n])
-      AC_SUBST([SVNVERSION])
-      AC_MSG_RESULT([$SVNVERSION])
+      AC_CHECK_PROG([HASSVNVERSION], [svnversion], [yes], [no])
+      AS_IF([test "x$HASSVNVERSION" = "xyes"], [
+         AC_MSG_CHECKING([for current svn version])
+         SVNVERSION=esyscmd([svnversion -n])
+         AC_SUBST([SVNVERSION])
+         AC_MSG_RESULT([$SVNVERSION])
+      ])
    fi
 ])