-#serial 1
-
-AC_DEFUN([AX_VCS_CHECKOUT],[
- AC_CACHE_CHECK([for vcs checkout], [ac_cv_vcs_checkout], [
- AS_IF([test -d ".bzr"],[ac_cv_vcs_checkout=yes])
- AS_IF([test -d ".svn"],[ac_cv_vcs_checkout=yes])
- AS_IF([test -d ".hg"], [ac_cv_vcs_checkout=yes])
- AS_IF([test -d ".git"],[ac_cv_vcs_checkout=yes])
+#serial 6
+
+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_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])