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# ===========================================================================
# http://
# ===========================================================================
#
# SYNOPSIS
#
# AX_VCS_CHECKOUT
#
# DESCRIPTION
#
# Discover whether or not we are operating with a tree which
# has been checked out of a version control system.
#
#
# LICENSE
#
# Copyright (C) 2012 Brian Aker
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#
# * The names of its contributors may not be used to endorse or
# promote products derived from this software without specific prior
# written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (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 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"
])
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.])])
])
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