Update m4

[m6w6/libmemcached] / m4 / ax_vcs_checkout.m4

diff --git a/m4/ax_vcs_checkout.m4 b/m4/ax_vcs_checkout.m4
index af4635ae28b4b2a046fd70774c85e38ed39b95ed..9f902c0aa7563674a2620457511e0a15559bfd33 100644 (file)
--- a/m4/ax_vcs_checkout.m4
+++ b/m4/ax_vcs_checkout.m4
@@ -45,40 +45,30 @@
 #  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 #  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#serial 5
+#serial 6
 
-AC_DEFUN([AX_VCS_SYSTEM],[
-    AC_CACHE_CHECK([for vcs system], [ac_cv_vcs_system], [
-      AS_IF([test -d ".bzr"],[
-        ac_cv_vcs_system="bazaar"
-        ])
-      AS_IF([test -d ".svn"],[
-        ac_cv_vcs_system="svn"
-        ])
-      AS_IF([test -d ".hg"],[
-        ac_cv_vcs_system="mercurial"
-        ])
-      AS_IF([test -d ".git"],[
-        ac_cv_vcs_system="git"
-        ])
-      ],[
-      ac_cv_vcs_system="none"
+AC_DEFUN([AX_VCS_SYSTEM],
+    [AC_PREREQ([2.63])dnl
+    AC_CACHE_CHECK([for vcs system], [ac_cv_vcs_system],
+      [ac_cv_vcs_system="none"
+      AS_IF([test -d ".bzr"],[ac_cv_vcs_system="bazaar"])
+      AS_IF([test -d ".svn"],[ac_cv_vcs_system="svn"])
+      AS_IF([test -d ".hg"],[ac_cv_vcs_system="mercurial"])
+      AS_IF([test -d ".git"],[ac_cv_vcs_system="git"])
       ])
-
     ])
 
-AC_DEFUN([AX_VCS_CHECKOUT],[
+AC_DEFUN([AX_VCS_CHECKOUT],
+    [AC_PREREQ([2.63])dnl
     AC_REQUIRE([AX_VCS_SYSTEM])
-    AC_CACHE_CHECK([for vcs checkout], [ac_cv_vcs_checkout], [
-      AS_IF([test "x$ac_cv_vcs_system" != "xnone"],[
-        ac_cv_vcs_checkout=yes
-        ],[
-        ac_cv_vcs_checkout=no
-        ])
+    AC_CACHE_CHECK([for vcs checkout],[ac_cv_vcs_checkout],
+      [AS_IF([test "x$ac_cv_vcs_system" != "xnone"],
+        [ac_cv_vcs_checkout=yes],
+        [ac_cv_vcs_checkout=no])
       ])
 
-    AM_CONDITIONAL([VCS_CHECKOUT], [test "$ac_cv_vcs_checkout" = "yes"])
-    AS_IF([test "x$ac_cv_vcs_checkout" = "xyes"],[
-      AC_DEFINE([VCS_CHECKOUT], [1], [Define if the code was built from VCS.])
+    AM_CONDITIONAL([IS_VCS_CHECKOUT], [test "x$ac_cv_vcs_checkout" = "xyes"])
+    AS_IF([test "x$ac_cv_vcs_checkout" = "xyes"],
+      [AC_DEFINE([VCS_CHECKOUT], [1], [Define if the code was built from VCS.])
       ])
     ])