git.m6w6.name Git - awesomized/libmemcached/blob - m4/ax_vcs_checkout.m4

   1 # ===========================================================================
   2 #      http://
   3 # ===========================================================================
   4 #
   5 # SYNOPSIS
   6 #
   7 #   AX_VCS_CHECKOUT
   8 #
   9 # DESCRIPTION
  10 #
  11 #   Discover whether or not we are operating with a tree which
  12 #   has been checked out of a version control system.
  13 #
  14 #
  15 # LICENSE
  16 #
  17 #  Copyright (C) 2012 Brian Aker
  18 #  All rights reserved.
  19 #
  20 #  Redistribution and use in source and binary forms, with or without
  21 #  modification, are permitted provided that the following conditions are
  22 #  met:
  23 #
  24 #      * Redistributions of source code must retain the above copyright
  25 #  notice, this list of conditions and the following disclaimer.
  26 #
  27 #      * Redistributions in binary form must reproduce the above
  28 #  copyright notice, this list of conditions and the following disclaimer
  29 #  in the documentation and/or other materials provided with the
  30 #  distribution.
  31 #
  32 #      * The names of its contributors may not be used to endorse or
  33 #  promote products derived from this software without specific prior
  34 #  written permission.
  35 #
  36 #  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  37 #  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  38 #  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  39 #  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  40 #  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  41 #  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  42 #  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  43 #  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  44 #  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  45 #  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  46 #  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  47
  48 #serial 5
  49
  50 AC_DEFUN([AX_VCS_SYSTEM],[
  51     AC_CACHE_CHECK([for vcs system], [ac_cv_vcs_system], [
  52       AS_IF([test -d ".bzr"],[
  53         ac_cv_vcs_system="bazaar"
  54         ])
  55       AS_IF([test -d ".svn"],[
  56         ac_cv_vcs_system="svn"
  57         ])
  58       AS_IF([test -d ".hg"],[
  59         ac_cv_vcs_system="mercurial"
  60         ])
  61       AS_IF([test -d ".git"],[
  62         ac_cv_vcs_system="git"
  63         ])
  64       ],[
  65       ac_cv_vcs_system="none"
  66       ])
  67
  68     ])
  69
  70 AC_DEFUN([AX_VCS_CHECKOUT],[
  71     AC_REQUIRE([AX_VCS_SYSTEM])
  72     AC_CACHE_CHECK([for vcs checkout], [ac_cv_vcs_checkout], [
  73       AS_IF([test "x$ac_cv_vcs_system" != "xnone"],[
  74         ac_cv_vcs_checkout=yes
  75         ],[
  76         ac_cv_vcs_checkout=no
  77         ])
  78       ])
  79
  80     AM_CONDITIONAL([VCS_CHECKOUT], [test "$ac_cv_vcs_checkout" = "yes"])
  81     AS_IF([test "x$ac_cv_vcs_checkout" = "xyes"],[
  82       AC_DEFINE([VCS_CHECKOUT], [1], [Define if the code was built from VCS.])
  83       ])
  84     ])