+ AC_DEFINE_UNQUOTED([VCS_SYSTEM],["$ac_cv_vcs_system"],[VCS system])
+ ])
+
+AC_DEFUN([AX_VCS_CHECKOUT],
+ [AC_PREREQ([2.63])dnl
+ AC_REQUIRE([AX_VCS_SYSTEM])
+ AC_CACHE_CHECK([for vcs checkout],[ac_cv_vcs_checkout],
+ [AS_IF([test "x$ac_cv_vcs_system" != "xnone"],
+ [ac_cv_vcs_checkout=yes],
+ [ac_cv_vcs_checkout=no])
+ ])
+
+ 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.])],
+ [AC_DEFINE([VCS_CHECKOUT],[0],[Define if the code was built from VCS.])])